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/window_title.h>
  39 #include <gtkmm2ext/popup.h>
  40
  41 #include "ardour/audioengine.h"
  42 #include "ardour/session.h"
  43 #include "ardour/audioplaylist.h"
  44 #include "ardour/audioregion.h"
  45 #include "ardour/audio_diskstream.h"
  46 #include "ardour/utils.h"
  47 #include "ardour/location.h"
  48 #include "ardour/named_selection.h"
  49 #include "ardour/audio_track.h"
  50 #include "ardour/audioplaylist.h"
  51 #include "ardour/region_factory.h"
  52 #include "ardour/playlist_factory.h"
  53 #include "ardour/reverse.h"
  54 #include "ardour/transient_detector.h"
  55 #include "ardour/dB.h"
  56 #include "ardour/quantize.h"
  57 #include "ardour/strip_silence.h"
  58 #include "ardour/route_group.h"
  59
  60 #include "ardour_ui.h"
  61 #include "editor.h"
  62 #include "time_axis_view.h"
  63 #include "route_time_axis.h"
  64 #include "audio_time_axis.h"
  65 #include "automation_time_axis.h"
  66 #include "streamview.h"
  67 #include "audio_streamview.h"
  68 #include "audio_region_view.h"
  69 #include "midi_region_view.h"
  70 #include "rgb_macros.h"
  71 #include "selection_templates.h"
  72 #include "selection.h"
  73 #include "editing.h"
  74 #include "gtk-custom-hruler.h"
  75 #include "gui_thread.h"
  76 #include "keyboard.h"
  77 #include "utils.h"
  78 #include "editor_drag.h"
  79 #include "strip_silence_dialog.h"
  80 #include "editor_routes.h"
  81 #include "editor_regions.h"
  82
  83 #include "i18n.h"
  84
  85 using namespace std;
  86 using namespace ARDOUR;
  87 using namespace PBD;
  88 using namespace sigc;
  89 using namespace Gtk;
  90 using namespace Gtkmm2ext;
  91 using namespace Editing;
  92
  93 /***********************************************************************
  94   Editor operations
  95  ***********************************************************************/
  96
  97 void
  98 Editor::undo (uint32_t n)
  99 {
 100         if (session) {
 101                 session->undo (n);
 102         }
 103 }
 104
 105 void
 106 Editor::redo (uint32_t n)
 107 {
 108         if (session) {
 109                 session->redo (n);
 110         }
 111 }
 112
 113 void
 114 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 115 {
 116         list <boost::shared_ptr<Playlist > > used_playlists;
 117
 118         if (regions.empty()) {
 119                 return;
 120         }
 121
 122         begin_reversible_command (_("split"));
 123
 124         // if splitting a single region, and snap-to is using
 125         // region boundaries, don't pay attention to them
 126
 127         if (regions.size() == 1) {
 128                 switch (snap_type) {
 129                 case SnapToRegionStart:
 130                 case SnapToRegionSync:
 131                 case SnapToRegionEnd:
 132                         break;
 133                 default:
 134                         snap_to (where);
 135                 }
 136         } else {
 137                 snap_to (where);
 138         }
 139
 140         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 141
 142                 RegionSelection::iterator tmp;
 143
 144                 /* XXX this test needs to be more complicated, to make sure we really
 145                    have something to split.
 146                 */
 147
 148                 if (!(*a)->region()->covers (where)) {
 149                         ++a;
 150                         continue;
 151                 }
 152
 153                 tmp = a;
 154                 ++tmp;
 155
 156                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 157
 158                 if (! pl->frozen()) {
 159                         /* we haven't seen this playlist before */
 160
 161                         /* remember used playlists so we can thaw them later */
 162                         used_playlists.push_back(pl);
 163                         pl->freeze();
 164                 }
 165
 166                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 167                 if (arv) {
 168                         _new_regionviews_show_envelope = arv->envelope_visible();
 169                 }
 170
 171                 if (pl) {
 172                         XMLNode &before = pl->get_state();
 173                         pl->split_region ((*a)->region(), where);
 174                         XMLNode &after = pl->get_state();
 175                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 176                 }
 177
 178                 a = tmp;
 179         }
 180
 181         while (used_playlists.size() > 0) {
 182                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 183                 (*i)->thaw();
 184                 used_playlists.pop_front();
 185         }
 186
 187         commit_reversible_command ();
 188         _new_regionviews_show_envelope = false;
 189 }
 190
 191 boost::shared_ptr<Region>
 192 Editor::select_region_for_operation (int /*dir*/, TimeAxisView **tv)
 193 {
 194         RegionView* rv;
 195         boost::shared_ptr<Region> region;
 196         nframes64_t start = 0;
 197
 198         if (selection->time.start () == selection->time.end_frame ()) {
 199
 200                 /* no current selection-> is there a selected regionview? */
 201
 202                 if (selection->regions.empty()) {
 203                         return region;
 204                 }
 205
 206         }
 207
 208         if (!selection->regions.empty()) {
 209
 210                 rv = *(selection->regions.begin());
 211                 (*tv) = &rv->get_time_axis_view();
 212                 region = rv->region();
 213
 214         } else if (!selection->tracks.empty()) {
 215
 216                 (*tv) = selection->tracks.front();
 217
 218                 RouteTimeAxisView* rtv;
 219
 220                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 221                         boost::shared_ptr<Playlist> pl;
 222
 223                         if ((pl = rtv->playlist()) == 0) {
 224                                 return region;
 225                         }
 226
 227                         region = pl->top_region_at (start);
 228                 }
 229         }
 230
 231         return region;
 232 }
 233
 234 void
 235 Editor::extend_selection_to_end_of_region (bool next)
 236 {
 237         TimeAxisView *tv;
 238         boost::shared_ptr<Region> region;
 239         nframes64_t start;
 240
 241         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 242                 return;
 243         }
 244
 245         if (region && selection->time.start () == selection->time.end_frame ()) {
 246                 start = region->position();
 247         } else {
 248                 start = selection->time.start ();
 249         }
 250
 251         /* Try to leave the selection with the same route if possible */
 252
 253         if ((tv = selection->time.track) == 0) {
 254                 return;
 255         }
 256
 257         begin_reversible_command (_("extend selection"));
 258         selection->set (tv, start, region->position() + region->length());
 259         commit_reversible_command ();
 260 }
 261
 262 void
 263 Editor::extend_selection_to_start_of_region (bool previous)
 264 {
 265         TimeAxisView *tv;
 266         boost::shared_ptr<Region> region;
 267         nframes64_t end;
 268
 269         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 270                 return;
 271         }
 272
 273         if (region && selection->time.start () == selection->time.end_frame ()) {
 274                 end = region->position() + region->length();
 275         } else {
 276                 end = selection->time.end_frame ();
 277         }
 278
 279         /* Try to leave the selection with the same route if possible */
 280
 281         if ((tv = selection->time.track) == 0) {
 282                 return;
 283         }
 284
 285         begin_reversible_command (_("extend selection"));
 286         selection->set (tv, region->position(), end);
 287         commit_reversible_command ();
 288 }
 289
 290 bool
 291 Editor::nudge_forward_release (GdkEventButton* ev)
 292 {
 293         if (ev->state & Keyboard::PrimaryModifier) {
 294                 nudge_forward (false, true);
 295         } else {
 296                 nudge_forward (false, false);
 297         }
 298         return false;
 299 }
 300
 301 bool
 302 Editor::nudge_backward_release (GdkEventButton* ev)
 303 {
 304         if (ev->state & Keyboard::PrimaryModifier) {
 305                 nudge_backward (false, true);
 306         } else {
 307                 nudge_backward (false, false);
 308         }
 309         return false;
 310 }
 311
 312
 313 void
 314 Editor::nudge_forward (bool next, bool force_playhead)
 315 {
 316         nframes64_t distance;
 317         nframes64_t next_distance;
 318         RegionSelection rs;
 319
 320         get_regions_for_action (rs);
 321
 322         if (!session) return;
 323
 324         if (!force_playhead && !rs.empty()) {
 325
 326                 begin_reversible_command (_("nudge regions forward"));
 327
 328                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 329                         boost::shared_ptr<Region> r ((*i)->region());
 330
 331                         distance = get_nudge_distance (r->position(), next_distance);
 332
 333                         if (next) {
 334                                 distance = next_distance;
 335                         }
 336
 337                         XMLNode &before = r->playlist()->get_state();
 338                         r->set_position (r->position() + distance, this);
 339                         XMLNode &after = r->playlist()->get_state();
 340                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 341                 }
 342
 343                 commit_reversible_command ();
 344
 345
 346         } else if (!force_playhead && !selection->markers.empty()) {
 347
 348                 bool is_start;
 349
 350                 begin_reversible_command (_("nudge location forward"));
 351
 352                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 353
 354                         Location* loc = find_location_from_marker ((*i), is_start);
 355
 356                         if (loc) {
 357
 358                                 XMLNode& before (loc->get_state());
 359
 360                                 if (is_start) {
 361                                         distance = get_nudge_distance (loc->start(), next_distance);
 362                                         if (next) {
 363                                                 distance = next_distance;
 364                                         }
 365                                         if (max_frames - distance > loc->start() + loc->length()) {
 366                                                 loc->set_start (loc->start() + distance);
 367                                         } else {
 368                                                 loc->set_start (max_frames - loc->length());
 369                                         }
 370                                 } else {
 371                                         distance = get_nudge_distance (loc->end(), next_distance);
 372                                         if (next) {
 373                                                 distance = next_distance;
 374                                         }
 375                                         if (max_frames - distance > loc->end()) {
 376                                                 loc->set_end (loc->end() + distance);
 377                                         } else {
 378                                                 loc->set_end (max_frames);
 379                                         }
 380                                 }
 381                                 XMLNode& after (loc->get_state());
 382                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 383                         }
 384                 }
 385
 386                 commit_reversible_command ();
 387
 388         } else {
 389                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 390                 session->request_locate (playhead_cursor->current_frame + distance);
 391         }
 392 }
 393
 394 void
 395 Editor::nudge_backward (bool next, bool force_playhead)
 396 {
 397         nframes64_t distance;
 398         nframes64_t next_distance;
 399         RegionSelection rs;
 400
 401         get_regions_for_action (rs);
 402
 403         if (!session) return;
 404
 405         if (!force_playhead && !rs.empty()) {
 406
 407                 begin_reversible_command (_("nudge regions backward"));
 408
 409                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 410                         boost::shared_ptr<Region> r ((*i)->region());
 411
 412                         distance = get_nudge_distance (r->position(), next_distance);
 413
 414                         if (next) {
 415                                 distance = next_distance;
 416                         }
 417
 418                         XMLNode &before = r->playlist()->get_state();
 419
 420                         if (r->position() > distance) {
 421                                 r->set_position (r->position() - distance, this);
 422                         } else {
 423                                 r->set_position (0, this);
 424                         }
 425                         XMLNode &after = r->playlist()->get_state();
 426                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 427                 }
 428
 429                 commit_reversible_command ();
 430
 431         } else if (!force_playhead && !selection->markers.empty()) {
 432
 433                 bool is_start;
 434
 435                 begin_reversible_command (_("nudge location forward"));
 436
 437                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 438
 439                         Location* loc = find_location_from_marker ((*i), is_start);
 440
 441                         if (loc) {
 442
 443                                 XMLNode& before (loc->get_state());
 444
 445                                 if (is_start) {
 446                                         distance = get_nudge_distance (loc->start(), next_distance);
 447                                         if (next) {
 448                                                 distance = next_distance;
 449                                         }
 450                                         if (distance < loc->start()) {
 451                                                 loc->set_start (loc->start() - distance);
 452                                         } else {
 453                                                 loc->set_start (0);
 454                                         }
 455                                 } else {
 456                                         distance = get_nudge_distance (loc->end(), next_distance);
 457
 458                                         if (next) {
 459                                                 distance = next_distance;
 460                                         }
 461
 462                                         if (distance < loc->end() - loc->length()) {
 463                                                 loc->set_end (loc->end() - distance);
 464                                         } else {
 465                                                 loc->set_end (loc->length());
 466                                         }
 467                                 }
 468
 469                                 XMLNode& after (loc->get_state());
 470                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 471                         }
 472                 }
 473
 474                 commit_reversible_command ();
 475
 476         } else {
 477
 478                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 479
 480                 if (playhead_cursor->current_frame > distance) {
 481                         session->request_locate (playhead_cursor->current_frame - distance);
 482                 } else {
 483                         session->goto_start();
 484                 }
 485         }
 486 }
 487
 488 void
 489 Editor::nudge_forward_capture_offset ()
 490 {
 491         nframes64_t distance;
 492         RegionSelection rs;
 493
 494         get_regions_for_action (rs);
 495
 496         if (!session) return;
 497
 498         if (!rs.empty()) {
 499
 500                 begin_reversible_command (_("nudge forward"));
 501
 502                 distance = session->worst_output_latency();
 503
 504                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 505                         boost::shared_ptr<Region> r ((*i)->region());
 506
 507                         XMLNode &before = r->playlist()->get_state();
 508                         r->set_position (r->position() + distance, this);
 509                         XMLNode &after = r->playlist()->get_state();
 510                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 511                 }
 512
 513                 commit_reversible_command ();
 514
 515         }
 516 }
 517
 518 void
 519 Editor::nudge_backward_capture_offset ()
 520 {
 521         nframes64_t distance;
 522         RegionSelection rs;
 523
 524         get_regions_for_action (rs);
 525
 526         if (!session) return;
 527
 528         if (!rs.empty()) {
 529
 530                 begin_reversible_command (_("nudge forward"));
 531
 532                 distance = session->worst_output_latency();
 533
 534                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 535                         boost::shared_ptr<Region> r ((*i)->region());
 536
 537                         XMLNode &before = r->playlist()->get_state();
 538
 539                         if (r->position() > distance) {
 540                                 r->set_position (r->position() - distance, this);
 541                         } else {
 542                                 r->set_position (0, this);
 543                         }
 544                         XMLNode &after = r->playlist()->get_state();
 545                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 546                 }
 547
 548                 commit_reversible_command ();
 549         }
 550 }
 551
 552 /* DISPLAY MOTION */
 553
 554 void
 555 Editor::move_to_start ()
 556 {
 557         session->goto_start ();
 558 }
 559
 560 void
 561 Editor::move_to_end ()
 562 {
 563
 564         session->request_locate (session->current_end_frame());
 565 }
 566
 567 void
 568 Editor::build_region_boundary_cache ()
 569 {
 570         nframes64_t pos = 0;
 571         vector<RegionPoint> interesting_points;
 572         boost::shared_ptr<Region> r;
 573         TrackViewList tracks;
 574         bool at_end = false;
 575
 576         region_boundary_cache.clear ();
 577
 578         if (session == 0) {
 579                 return;
 580         }
 581
 582         switch (snap_type) {
 583         case SnapToRegionStart:
 584                 interesting_points.push_back (Start);
 585                 break;
 586         case SnapToRegionEnd:
 587                 interesting_points.push_back (End);
 588                 break;
 589         case SnapToRegionSync:
 590                 interesting_points.push_back (SyncPoint);
 591                 break;
 592         case SnapToRegionBoundary:
 593                 interesting_points.push_back (Start);
 594                 interesting_points.push_back (End);
 595                 break;
 596         default:
 597                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 598                 /*NOTREACHED*/
 599                 return;
 600         }
 601
 602         TimeAxisView *ontrack = 0;
 603         TrackViewList tlist;
 604
 605         if (!selection->tracks.empty()) {
 606                 tlist = selection->tracks;
 607         } else {
 608                 tlist = track_views;
 609         }
 610
 611         while (pos < session->current_end_frame() && !at_end) {
 612
 613                 nframes64_t rpos;
 614                 nframes64_t lpos = max_frames;
 615
 616                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 617
 618                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 619                                 if (*p == interesting_points.back()) {
 620                                         at_end = true;
 621                                 }
 622                                 /* move to next point type */
 623                                 continue;
 624                         }
 625
 626                         switch (*p) {
 627                         case Start:
 628                                 rpos = r->first_frame();
 629                                 break;
 630
 631                         case End:
 632                                 rpos = r->last_frame();
 633                                 break;
 634
 635                         case SyncPoint:
 636                                 rpos = r->sync_position ();
 637                                 //r->adjust_to_sync (r->first_frame());
 638                                 break;
 639
 640                         default:
 641                                 break;
 642                         }
 643
 644                         float speed = 1.0f;
 645                         RouteTimeAxisView *rtav;
 646
 647                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 648                                 if (rtav->get_diskstream() != 0) {
 649                                         speed = rtav->get_diskstream()->speed();
 650                                 }
 651                         }
 652
 653                         rpos = track_frame_to_session_frame (rpos, speed);
 654
 655                         if (rpos < lpos) {
 656                                 lpos = rpos;
 657                         }
 658
 659                         /* prevent duplicates, but we don't use set<> because we want to be able
 660                            to sort later.
 661                         */
 662
 663                         vector<nframes64_t>::iterator ri;
 664
 665                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 666                                 if (*ri == rpos) {
 667                                         break;
 668                                 }
 669                         }
 670
 671                         if (ri == region_boundary_cache.end()) {
 672                                 region_boundary_cache.push_back (rpos);
 673                         }
 674                 }
 675
 676                 pos = lpos + 1;
 677         }
 678
 679         /* finally sort to be sure that the order is correct */
 680
 681         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 682 }
 683
 684 boost::shared_ptr<Region>
 685 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 686 {
 687         TrackViewList::iterator i;
 688         nframes64_t closest = max_frames;
 689         boost::shared_ptr<Region> ret;
 690         nframes64_t rpos = 0;
 691
 692         float track_speed;
 693         nframes64_t track_frame;
 694         RouteTimeAxisView *rtav;
 695
 696         for (i = tracks.begin(); i != tracks.end(); ++i) {
 697
 698                 nframes64_t distance;
 699                 boost::shared_ptr<Region> r;
 700
 701                 track_speed = 1.0f;
 702                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 703                         if (rtav->get_diskstream()!=0)
 704                                 track_speed = rtav->get_diskstream()->speed();
 705                 }
 706
 707                 track_frame = session_frame_to_track_frame(frame, track_speed);
 708
 709                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 710                         continue;
 711                 }
 712
 713                 switch (point) {
 714                 case Start:
 715                         rpos = r->first_frame ();
 716                         break;
 717
 718                 case End:
 719                         rpos = r->last_frame ();
 720                         break;
 721
 722                 case SyncPoint:
 723                         rpos = r->sync_position ();
 724                         // r->adjust_to_sync (r->first_frame());
 725                         break;
 726                 }
 727
 728                 // rpos is a "track frame", converting it to "session frame"
 729                 rpos = track_frame_to_session_frame(rpos, track_speed);
 730
 731                 if (rpos > frame) {
 732                         distance = rpos - frame;
 733                 } else {
 734                         distance = frame - rpos;
 735                 }
 736
 737                 if (distance < closest) {
 738                         closest = distance;
 739                         if (ontrack != 0)
 740                                 *ontrack = (*i);
 741                         ret = r;
 742                 }
 743         }
 744
 745         return ret;
 746 }
 747
 748 nframes64_t
 749 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 750 {
 751         nframes64_t distance = max_frames;
 752         nframes64_t current_nearest = -1;
 753
 754
 755         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 756                 nframes64_t contender;
 757                 nframes64_t d;
 758
 759                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 760
 761                 if (!rtv) {
 762                         continue;
 763                 }
 764
 765                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 766                         continue;
 767                 }
 768
 769                 d = ::llabs (pos - contender);
 770
 771                 if (d < distance) {
 772                         current_nearest = contender;
 773                         distance = d;
 774                 }
 775         }
 776
 777         return current_nearest;
 778 }
 779
 780 nframes64_t
 781 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 782 {
 783         nframes64_t target;
 784         TrackViewList tvl;
 785
 786         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 787
 788                 if (!selection->tracks.empty()) {
 789
 790                         target = find_next_region_boundary (pos, dir, selection->tracks);
 791
 792                 } else {
 793
 794                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 795                                 get_onscreen_tracks (tvl);
 796                                 target = find_next_region_boundary (pos, dir, tvl);
 797                         } else {
 798                                 target = find_next_region_boundary (pos, dir, track_views);
 799                         }
 800                 }
 801
 802         } else {
 803
 804                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 805                         get_onscreen_tracks (tvl);
 806                         target = find_next_region_boundary (pos, dir, tvl);
 807                 } else {
 808                         target = find_next_region_boundary (pos, dir, track_views);
 809                 }
 810         }
 811
 812         return target;
 813 }
 814
 815 void
 816 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 817 {
 818         nframes64_t pos = playhead_cursor->current_frame;
 819         nframes64_t target;
 820
 821         if (!session) {
 822                 return;
 823         }
 824
 825         // so we don't find the current region again..
 826         if (dir > 0 || pos > 0) {
 827                 pos += dir;
 828         }
 829
 830         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 831                 return;
 832         }
 833
 834
 835         session->request_locate (target);
 836 }
 837
 838 void
 839 Editor::cursor_to_next_region_boundary (bool with_selection)
 840 {
 841         cursor_to_region_boundary (with_selection, 1);
 842 }
 843
 844 void
 845 Editor::cursor_to_previous_region_boundary (bool with_selection)
 846 {
 847         cursor_to_region_boundary (with_selection, -1);
 848 }
 849
 850 void
 851 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 852 {
 853         boost::shared_ptr<Region> r;
 854         nframes64_t pos = cursor->current_frame;
 855
 856         if (!session) {
 857                 return;
 858         }
 859
 860         TimeAxisView *ontrack = 0;
 861
 862         // so we don't find the current region again..
 863         if (dir>0 || pos>0)
 864                 pos+=dir;
 865
 866         if (!selection->tracks.empty()) {
 867
 868                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 869
 870         } else if (clicked_axisview) {
 871
 872                 TrackViewList t;
 873                 t.push_back (clicked_axisview);
 874
 875                 r = find_next_region (pos, point, dir, t, &ontrack);
 876
 877         } else {
 878
 879                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 880         }
 881
 882         if (r == 0) {
 883                 return;
 884         }
 885
 886         switch (point){
 887         case Start:
 888                 pos = r->first_frame ();
 889                 break;
 890
 891         case End:
 892                 pos = r->last_frame ();
 893                 break;
 894
 895         case SyncPoint:
 896                 pos = r->sync_position ();
 897                 // r->adjust_to_sync (r->first_frame());
 898                 break;
 899         }
 900
 901         float speed = 1.0f;
 902         RouteTimeAxisView *rtav;
 903
 904         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 905                 if (rtav->get_diskstream() != 0) {
 906                         speed = rtav->get_diskstream()->speed();
 907                 }
 908         }
 909
 910         pos = track_frame_to_session_frame(pos, speed);
 911
 912         if (cursor == playhead_cursor) {
 913                 session->request_locate (pos);
 914         } else {
 915                 cursor->set_position (pos);
 916         }
 917 }
 918
 919 void
 920 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 921 {
 922         cursor_to_region_point (cursor, point, 1);
 923 }
 924
 925 void
 926 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 927 {
 928         cursor_to_region_point (cursor, point, -1);
 929 }
 930
 931 void
 932 Editor::cursor_to_selection_start (EditorCursor *cursor)
 933 {
 934         nframes64_t pos = 0;
 935         RegionSelection rs;
 936
 937         get_regions_for_action (rs);
 938
 939         switch (mouse_mode) {
 940         case MouseObject:
 941                 if (!rs.empty()) {
 942                         pos = rs.start();
 943                 }
 944                 break;
 945
 946         case MouseRange:
 947                 if (!selection->time.empty()) {
 948                         pos = selection->time.start ();
 949                 }
 950                 break;
 951
 952         default:
 953                 return;
 954         }
 955
 956         if (cursor == playhead_cursor) {
 957                 session->request_locate (pos);
 958         } else {
 959                 cursor->set_position (pos);
 960         }
 961 }
 962
 963 void
 964 Editor::cursor_to_selection_end (EditorCursor *cursor)
 965 {
 966         nframes64_t pos = 0;
 967         RegionSelection rs;
 968
 969         get_regions_for_action (rs);
 970
 971         switch (mouse_mode) {
 972         case MouseObject:
 973                 if (!rs.empty()) {
 974                         pos = rs.end_frame();
 975                 }
 976                 break;
 977
 978         case MouseRange:
 979                 if (!selection->time.empty()) {
 980                         pos = selection->time.end_frame ();
 981                 }
 982                 break;
 983
 984         default:
 985                 return;
 986         }
 987
 988         if (cursor == playhead_cursor) {
 989                 session->request_locate (pos);
 990         } else {
 991                 cursor->set_position (pos);
 992         }
 993 }
 994
 995 void
 996 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
 997 {
 998         nframes64_t target;
 999         Location* loc;
1000         bool ignored;
1001
1002         if (!session) {
1003                 return;
1004         }
1005
1006         if (selection->markers.empty()) {
1007                 nframes64_t mouse;
1008                 bool ignored;
1009
1010                 if (!mouse_frame (mouse, ignored)) {
1011                         return;
1012                 }
1013
1014                 add_location_mark (mouse);
1015         }
1016
1017         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1018                 return;
1019         }
1020
1021         nframes64_t pos = loc->start();
1022
1023         // so we don't find the current region again..
1024         if (dir > 0 || pos > 0) {
1025                 pos += dir;
1026         }
1027
1028         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1029                 return;
1030         }
1031
1032         loc->move_to (target);
1033 }
1034
1035 void
1036 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1037 {
1038         selected_marker_to_region_boundary (with_selection, 1);
1039 }
1040
1041 void
1042 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1043 {
1044         selected_marker_to_region_boundary (with_selection, -1);
1045 }
1046
1047 void
1048 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1049 {
1050         boost::shared_ptr<Region> r;
1051         nframes64_t pos;
1052         Location* loc;
1053         bool ignored;
1054
1055         if (!session || selection->markers.empty()) {
1056                 return;
1057         }
1058
1059         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1060                 return;
1061         }
1062
1063         TimeAxisView *ontrack = 0;
1064
1065         pos = loc->start();
1066
1067         // so we don't find the current region again..
1068         if (dir>0 || pos>0)
1069                 pos+=dir;
1070
1071         if (!selection->tracks.empty()) {
1072
1073                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1074
1075         } else {
1076
1077                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1078         }
1079
1080         if (r == 0) {
1081                 return;
1082         }
1083
1084         switch (point){
1085         case Start:
1086                 pos = r->first_frame ();
1087                 break;
1088
1089         case End:
1090                 pos = r->last_frame ();
1091                 break;
1092
1093         case SyncPoint:
1094                 pos = r->adjust_to_sync (r->first_frame());
1095                 break;
1096         }
1097
1098         float speed = 1.0f;
1099         RouteTimeAxisView *rtav;
1100
1101         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1102                 if (rtav->get_diskstream() != 0) {
1103                         speed = rtav->get_diskstream()->speed();
1104                 }
1105         }
1106
1107         pos = track_frame_to_session_frame(pos, speed);
1108
1109         loc->move_to (pos);
1110 }
1111
1112 void
1113 Editor::selected_marker_to_next_region_point (RegionPoint point)
1114 {
1115         selected_marker_to_region_point (point, 1);
1116 }
1117
1118 void
1119 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1120 {
1121         selected_marker_to_region_point (point, -1);
1122 }
1123
1124 void
1125 Editor::selected_marker_to_selection_start ()
1126 {
1127         nframes64_t pos = 0;
1128         Location* loc;
1129         bool ignored;
1130
1131         if (!session || selection->markers.empty()) {
1132                 return;
1133         }
1134
1135         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1136                 return;
1137         }
1138
1139         RegionSelection rs;
1140
1141         get_regions_for_action (rs);
1142
1143         switch (mouse_mode) {
1144         case MouseObject:
1145                 if (!rs.empty()) {
1146                         pos = rs.start();
1147                 }
1148                 break;
1149
1150         case MouseRange:
1151                 if (!selection->time.empty()) {
1152                         pos = selection->time.start ();
1153                 }
1154                 break;
1155
1156         default:
1157                 return;
1158         }
1159
1160         loc->move_to (pos);
1161 }
1162
1163 void
1164 Editor::selected_marker_to_selection_end ()
1165 {
1166         nframes64_t pos = 0;
1167         Location* loc;
1168         bool ignored;
1169
1170         if (!session || selection->markers.empty()) {
1171                 return;
1172         }
1173
1174         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1175                 return;
1176         }
1177
1178         RegionSelection rs;
1179
1180         get_regions_for_action (rs);
1181
1182         switch (mouse_mode) {
1183         case MouseObject:
1184                 if (!rs.empty()) {
1185                         pos = rs.end_frame();
1186                 }
1187                 break;
1188
1189         case MouseRange:
1190                 if (!selection->time.empty()) {
1191                         pos = selection->time.end_frame ();
1192                 }
1193                 break;
1194
1195         default:
1196                 return;
1197         }
1198
1199         loc->move_to (pos);
1200 }
1201
1202 void
1203 Editor::scroll_playhead (bool forward)
1204 {
1205         nframes64_t pos = playhead_cursor->current_frame;
1206         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1207
1208         if (forward) {
1209                 if (pos == max_frames) {
1210                         return;
1211                 }
1212
1213                 if (pos < max_frames - delta) {
1214                         pos += delta ;
1215                 } else {
1216                         pos = max_frames;
1217                 }
1218
1219         } else {
1220
1221                 if (pos == 0) {
1222                         return;
1223                 }
1224
1225                 if (pos > delta) {
1226                         pos -= delta;
1227                 } else {
1228                         pos = 0;
1229                 }
1230         }
1231
1232         session->request_locate (pos);
1233 }
1234
1235 void
1236 Editor::playhead_backward ()
1237 {
1238         nframes64_t pos;
1239         nframes64_t cnt;
1240         float prefix;
1241         bool was_floating;
1242
1243         if (get_prefix (prefix, was_floating)) {
1244                 cnt = 1;
1245         } else {
1246                 if (was_floating) {
1247                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1248                 } else {
1249                         cnt = (nframes64_t) prefix;
1250                 }
1251         }
1252
1253         pos = playhead_cursor->current_frame;
1254
1255         if ((nframes64_t) pos < cnt) {
1256                 pos = 0;
1257         } else {
1258                 pos -= cnt;
1259         }
1260
1261         /* XXX this is completely insane. with the current buffering
1262            design, we'll force a complete track buffer flush and
1263            reload, just to move 1 sample !!!
1264         */
1265
1266         session->request_locate (pos);
1267 }
1268
1269 void
1270 Editor::playhead_forward ()
1271 {
1272         nframes64_t pos;
1273         nframes64_t cnt;
1274         bool was_floating;
1275         float prefix;
1276
1277         if (get_prefix (prefix, was_floating)) {
1278                 cnt = 1;
1279         } else {
1280                 if (was_floating) {
1281                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1282                 } else {
1283                         cnt = (nframes64_t) floor (prefix);
1284                 }
1285         }
1286
1287         pos = playhead_cursor->current_frame;
1288
1289         /* XXX this is completely insane. with the current buffering
1290            design, we'll force a complete track buffer flush and
1291            reload, just to move 1 sample !!!
1292         */
1293
1294         session->request_locate (pos+cnt);
1295 }
1296
1297 void
1298 Editor::cursor_align (bool playhead_to_edit)
1299 {
1300         if (!session) {
1301                 return;
1302         }
1303
1304         if (playhead_to_edit) {
1305
1306                 if (selection->markers.empty()) {
1307                         return;
1308                 }
1309
1310                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1311
1312         } else {
1313                 /* move selected markers to playhead */
1314
1315                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1316                         bool ignored;
1317
1318                         Location* loc = find_location_from_marker (*i, ignored);
1319
1320                         if (loc->is_mark()) {
1321                                 loc->set_start (playhead_cursor->current_frame);
1322                         } else {
1323                                 loc->set (playhead_cursor->current_frame,
1324                                           playhead_cursor->current_frame + loc->length());
1325                         }
1326                 }
1327         }
1328 }
1329
1330 void
1331 Editor::edit_cursor_backward ()
1332 {
1333         nframes64_t pos;
1334         nframes64_t cnt;
1335         float prefix;
1336         bool was_floating;
1337
1338         if (get_prefix (prefix, was_floating)) {
1339                 cnt = 1;
1340         } else {
1341                 if (was_floating) {
1342                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1343                 } else {
1344                         cnt = (nframes64_t) prefix;
1345                 }
1346         }
1347
1348         if ((pos = get_preferred_edit_position()) < 0) {
1349                 return;
1350         }
1351
1352         if (pos < cnt) {
1353                 pos = 0;
1354         } else {
1355                 pos -= cnt;
1356         }
1357
1358         // EDIT CURSOR edit_cursor->set_position (pos);
1359 }
1360
1361 void
1362 Editor::edit_cursor_forward ()
1363 {
1364         //nframes64_t pos;
1365         nframes64_t cnt;
1366         bool was_floating;
1367         float prefix;
1368
1369         if (get_prefix (prefix, was_floating)) {
1370                 cnt = 1;
1371         } else {
1372                 if (was_floating) {
1373                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1374                 } else {
1375                         cnt = (nframes64_t) floor (prefix);
1376                 }
1377         }
1378
1379         // pos = edit_cursor->current_frame;
1380         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1381 }
1382
1383 void
1384 Editor::goto_frame ()
1385 {
1386         float prefix;
1387         bool was_floating;
1388         nframes64_t frame;
1389
1390         if (get_prefix (prefix, was_floating)) {
1391                 return;
1392         }
1393
1394         if (was_floating) {
1395                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1396         } else {
1397                 frame = (nframes64_t) floor (prefix);
1398         }
1399
1400         session->request_locate (frame);
1401 }
1402
1403 void
1404 Editor::scroll_backward (float pages)
1405 {
1406         nframes64_t frame;
1407         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1408         bool was_floating;
1409         float prefix;
1410         nframes64_t cnt;
1411
1412         if (get_prefix (prefix, was_floating)) {
1413                 cnt = (nframes64_t) floor (pages * one_page);
1414         } else {
1415                 if (was_floating) {
1416                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1417                 } else {
1418                         cnt = (nframes64_t) floor (prefix * one_page);
1419                 }
1420         }
1421
1422         if (leftmost_frame < cnt) {
1423                 frame = 0;
1424         } else {
1425                 frame = leftmost_frame - cnt;
1426         }
1427
1428         reset_x_origin (frame);
1429 }
1430
1431 void
1432 Editor::scroll_forward (float pages)
1433 {
1434         nframes64_t frame;
1435         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1436         bool was_floating;
1437         float prefix;
1438         nframes64_t cnt;
1439
1440         if (get_prefix (prefix, was_floating)) {
1441                 cnt = (nframes64_t) floor (pages * one_page);
1442         } else {
1443                 if (was_floating) {
1444                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1445                 } else {
1446                         cnt = (nframes64_t) floor (prefix * one_page);
1447                 }
1448         }
1449
1450         if (max_frames - cnt < leftmost_frame) {
1451                 frame = max_frames - cnt;
1452         } else {
1453                 frame = leftmost_frame + cnt;
1454         }
1455
1456         reset_x_origin (frame);
1457 }
1458
1459 void
1460 Editor::scroll_tracks_down ()
1461 {
1462         float prefix;
1463         bool was_floating;
1464         int cnt;
1465
1466         if (get_prefix (prefix, was_floating)) {
1467                 cnt = 1;
1468         } else {
1469                 cnt = (int) floor (prefix);
1470         }
1471
1472         double vert_value = vertical_adjustment.get_value() + (cnt *
1473                 vertical_adjustment.get_page_size());
1474         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1475                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1476         }
1477         vertical_adjustment.set_value (vert_value);
1478 }
1479
1480 void
1481 Editor::scroll_tracks_up ()
1482 {
1483         float prefix;
1484         bool was_floating;
1485         int cnt;
1486
1487         if (get_prefix (prefix, was_floating)) {
1488                 cnt = 1;
1489         } else {
1490                 cnt = (int) floor (prefix);
1491         }
1492
1493         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1494 }
1495
1496 void
1497 Editor::scroll_tracks_down_line ()
1498 {
1499
1500         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1501         double vert_value = adj->get_value() + 60;
1502
1503         if (vert_value>adj->get_upper() - _canvas_height) {
1504                 vert_value = adj->get_upper() - _canvas_height;
1505         }
1506         adj->set_value (vert_value);
1507 }
1508
1509 void
1510 Editor::scroll_tracks_up_line ()
1511 {
1512         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1513         adj->set_value (adj->get_value() - 60);
1514 }
1515
1516 /* ZOOM */
1517
1518 void
1519 Editor::tav_zoom_step (bool coarser)
1520 {
1521         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1522
1523         _routes->suspend_redisplay ();
1524
1525         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1526                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1527                         tv->step_height (coarser);
1528         }
1529
1530         _routes->resume_redisplay ();
1531 }
1532
1533 void
1534 Editor::temporal_zoom_step (bool coarser)
1535 {
1536         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1537
1538         double nfpu;
1539
1540         nfpu = frames_per_unit;
1541
1542         if (coarser) {
1543                 nfpu *= 1.61803399;
1544         } else {
1545                 nfpu = max(1.0,(nfpu/1.61803399));
1546         }
1547
1548         temporal_zoom (nfpu);
1549 }
1550
1551 void
1552 Editor::temporal_zoom (gdouble fpu)
1553 {
1554         if (!session) return;
1555
1556         nframes64_t current_page = current_page_frames();
1557         nframes64_t current_leftmost = leftmost_frame;
1558         nframes64_t current_rightmost;
1559         nframes64_t current_center;
1560         nframes64_t new_page_size;
1561         nframes64_t half_page_size;
1562         nframes64_t leftmost_after_zoom = 0;
1563         nframes64_t where;
1564         bool in_track_canvas;
1565         double nfpu;
1566         double l;
1567
1568         /* XXX this limit is also in ::set_frames_per_unit() */
1569
1570         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1571                 return;
1572         }
1573
1574         nfpu = fpu;
1575
1576         new_page_size = (nframes64_t) floor (_canvas_width * nfpu);
1577         half_page_size = new_page_size / 2;
1578
1579         switch (zoom_focus) {
1580         case ZoomFocusLeft:
1581                 leftmost_after_zoom = current_leftmost;
1582                 break;
1583
1584         case ZoomFocusRight:
1585                 current_rightmost = leftmost_frame + current_page;
1586                 if (current_rightmost < new_page_size) {
1587                         leftmost_after_zoom = 0;
1588                 } else {
1589                         leftmost_after_zoom = current_rightmost - new_page_size;
1590                 }
1591                 break;
1592
1593         case ZoomFocusCenter:
1594                 current_center = current_leftmost + (current_page/2);
1595                 if (current_center < half_page_size) {
1596                         leftmost_after_zoom = 0;
1597                 } else {
1598                         leftmost_after_zoom = current_center - half_page_size;
1599                 }
1600                 break;
1601
1602         case ZoomFocusPlayhead:
1603                 /* try to keep the playhead in the same place */
1604
1605                 where = playhead_cursor->current_frame;
1606
1607                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1608
1609                 if (l < 0) {
1610                         leftmost_after_zoom = 0;
1611                 } else if (l > max_frames) {
1612                         leftmost_after_zoom = max_frames - new_page_size;
1613                 } else {
1614                         leftmost_after_zoom = (nframes64_t) l;
1615                 }
1616                 break;
1617
1618         case ZoomFocusMouse:
1619                 /* try to keep the mouse over the same point in the display */
1620
1621                 if (!mouse_frame (where, in_track_canvas)) {
1622                         /* use playhead instead */
1623                         where = playhead_cursor->current_frame;
1624
1625                         if (where < half_page_size) {
1626                                 leftmost_after_zoom = 0;
1627                         } else {
1628                                 leftmost_after_zoom = where - half_page_size;
1629                         }
1630
1631                 } else {
1632
1633                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1634
1635                         if (l < 0) {
1636                                 leftmost_after_zoom = 0;
1637                         } else if (l > max_frames) {
1638                                 leftmost_after_zoom = max_frames - new_page_size;
1639                         } else {
1640                                 leftmost_after_zoom = (nframes64_t) l;
1641                         }
1642                 }
1643
1644                 break;
1645
1646         case ZoomFocusEdit:
1647                 /* try to keep the edit point in the same place */
1648                 where = get_preferred_edit_position ();
1649
1650                 if (where > 0) {
1651
1652                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1653
1654                         if (l < 0) {
1655                                 leftmost_after_zoom = 0;
1656                         } else if (l > max_frames) {
1657                                 leftmost_after_zoom = max_frames - new_page_size;
1658                         } else {
1659                                 leftmost_after_zoom = (nframes64_t) l;
1660                         }
1661
1662                 } else {
1663                         /* edit point not defined */
1664                         return;
1665                 }
1666                 break;
1667
1668         }
1669
1670         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1671
1672         reposition_and_zoom (leftmost_after_zoom, nfpu);
1673 }
1674
1675 void
1676 Editor::temporal_zoom_region (bool both_axes)
1677 {
1678
1679         nframes64_t start = max_frames;
1680         nframes64_t end = 0;
1681         RegionSelection rs;
1682         set<TimeAxisView*> tracks;
1683
1684         get_regions_for_action (rs);
1685
1686         if (rs.empty()) {
1687                 return;
1688         }
1689
1690         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1691
1692                 if ((*i)->region()->position() < start) {
1693                         start = (*i)->region()->position();
1694                 }
1695
1696                 if ((*i)->region()->last_frame() + 1 > end) {
1697                         end = (*i)->region()->last_frame() + 1;
1698                 }
1699
1700                 tracks.insert (&((*i)->get_time_axis_view()));
1701         }
1702
1703         /* now comes an "interesting" hack ... make sure we leave a little space
1704            at each end of the editor so that the zoom doesn't fit the region
1705            precisely to the screen.
1706         */
1707
1708         GdkScreen* screen = gdk_screen_get_default ();
1709         gint pixwidth = gdk_screen_get_width (screen);
1710         gint mmwidth = gdk_screen_get_width_mm (screen);
1711         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1712         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1713
1714         if ((start == 0 && end == 0) || end < start) {
1715                 return;
1716         }
1717
1718         nframes64_t range = end - start;
1719         double new_fpu = (double)range / (double)_canvas_width;
1720         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1721
1722         if (start > extra_samples) {
1723                 start -= extra_samples;
1724         } else {
1725                 start = 0;
1726         }
1727
1728         if (max_frames - extra_samples > end) {
1729                 end += extra_samples;
1730         } else {
1731                 end = max_frames;
1732         }
1733
1734         if (both_axes) {
1735                 /* save visual state with track states included, and prevent
1736                    set_frames_per_unit() from doing it again.
1737                 */
1738                 undo_visual_stack.push_back (current_visual_state(true));
1739                 no_save_visual = true;
1740         }
1741
1742         temporal_zoom_by_frame (start, end, "zoom to region");
1743
1744         if (both_axes) {
1745                 uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1746
1747                 /* set visible track heights appropriately */
1748
1749                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1750                         (*t)->set_height (per_track_height);
1751                 }
1752
1753                 /* hide irrelevant tracks */
1754
1755                 _routes->suspend_redisplay ();
1756
1757                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1758                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1759                                 hide_track_in_display (**i, true);
1760                         }
1761                 }
1762
1763                 _routes->resume_redisplay ();
1764
1765                 vertical_adjustment.set_value (0.0);
1766                 no_save_visual = false;
1767         }
1768
1769         zoomed_to_region = true;
1770         redo_visual_stack.push_back (current_visual_state());
1771 }
1772
1773 void
1774 Editor::toggle_zoom_region (bool both_axes)
1775 {
1776         if (zoomed_to_region) {
1777                 swap_visual_state ();
1778         } else {
1779                 temporal_zoom_region (both_axes);
1780         }
1781 }
1782
1783 void
1784 Editor::temporal_zoom_selection ()
1785 {
1786         if (!selection) return;
1787
1788         if (selection->time.empty()) {
1789                 return;
1790         }
1791
1792         nframes64_t start = selection->time[clicked_selection].start;
1793         nframes64_t end = selection->time[clicked_selection].end;
1794
1795         temporal_zoom_by_frame (start, end, "zoom to selection");
1796 }
1797
1798 void
1799 Editor::temporal_zoom_session ()
1800 {
1801         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1802
1803         if (session) {
1804                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1805         }
1806 }
1807
1808 void
1809 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & /*op*/)
1810 {
1811         if (!session) return;
1812
1813         if ((start == 0 && end == 0) || end < start) {
1814                 return;
1815         }
1816
1817         nframes64_t range = end - start;
1818
1819         double new_fpu = (double)range / (double)_canvas_width;
1820
1821         nframes64_t new_page = (nframes64_t) floor (_canvas_width * new_fpu);
1822         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1823         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1824
1825         if (new_leftmost > middle) {
1826                 new_leftmost = 0;
1827         }
1828
1829         reposition_and_zoom (new_leftmost, new_fpu);
1830 }
1831
1832 void
1833 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1834 {
1835         if (!session) {
1836                 return;
1837         }
1838         double range_before = frame - leftmost_frame;
1839         double new_fpu;
1840
1841         new_fpu = frames_per_unit;
1842
1843         if (coarser) {
1844                 new_fpu *= 1.61803399;
1845                 range_before *= 1.61803399;
1846         } else {
1847                 new_fpu = max(1.0,(new_fpu/1.61803399));
1848                 range_before /= 1.61803399;
1849         }
1850
1851         if (new_fpu == frames_per_unit)  {
1852                 return;
1853         }
1854
1855         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1856
1857         if (new_leftmost > frame) {
1858                 new_leftmost = 0;
1859         }
1860 //      begin_reversible_command (_("zoom to frame"));
1861 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1862 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1863 //      commit_reversible_command ();
1864
1865         reposition_and_zoom (new_leftmost, new_fpu);
1866 }
1867
1868
1869 bool
1870 Editor::choose_new_marker_name(string &name) {
1871
1872         if (!Config->get_name_new_markers()) {
1873                 /* don't prompt user for a new name */
1874                 return true;
1875         }
1876
1877         ArdourPrompter dialog (true);
1878
1879         dialog.set_prompt (_("New Name:"));
1880
1881         WindowTitle title(Glib::get_application_name());
1882         title += _("Name New Location Marker");
1883
1884         dialog.set_title(title.get_string());
1885
1886         dialog.set_name ("MarkNameWindow");
1887         dialog.set_size_request (250, -1);
1888         dialog.set_position (Gtk::WIN_POS_MOUSE);
1889
1890         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1891         dialog.set_initial_text (name);
1892
1893         dialog.show ();
1894
1895         switch (dialog.run ()) {
1896         case RESPONSE_ACCEPT:
1897                 break;
1898         default:
1899                 return false;
1900         }
1901
1902         dialog.get_result(name);
1903         return true;
1904
1905 }
1906
1907
1908 void
1909 Editor::add_location_from_selection ()
1910 {
1911         string rangename;
1912
1913         if (selection->time.empty()) {
1914                 return;
1915         }
1916
1917         if (session == 0 || clicked_axisview == 0) {
1918                 return;
1919         }
1920
1921         nframes64_t start = selection->time[clicked_selection].start;
1922         nframes64_t end = selection->time[clicked_selection].end;
1923
1924         session->locations()->next_available_name(rangename,"selection");
1925         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1926
1927         session->begin_reversible_command (_("add marker"));
1928         XMLNode &before = session->locations()->get_state();
1929         session->locations()->add (location, true);
1930         XMLNode &after = session->locations()->get_state();
1931         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1932         session->commit_reversible_command ();
1933 }
1934
1935 void
1936 Editor::add_location_mark (nframes64_t where)
1937 {
1938         string markername;
1939
1940         select_new_marker = true;
1941
1942         session->locations()->next_available_name(markername,"mark");
1943         if (!choose_new_marker_name(markername)) {
1944                 return;
1945         }
1946         Location *location = new Location (where, where, markername, Location::IsMark);
1947         session->begin_reversible_command (_("add marker"));
1948         XMLNode &before = session->locations()->get_state();
1949         session->locations()->add (location, true);
1950         XMLNode &after = session->locations()->get_state();
1951         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1952         session->commit_reversible_command ();
1953 }
1954
1955 void
1956 Editor::add_location_from_playhead_cursor ()
1957 {
1958         add_location_mark (session->audible_frame());
1959 }
1960
1961 void
1962 Editor::add_locations_from_audio_region ()
1963 {
1964         RegionSelection rs;
1965
1966         get_regions_for_action (rs);
1967
1968         if (rs.empty()) {
1969                 return;
1970         }
1971
1972         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
1973         XMLNode &before = session->locations()->get_state();
1974
1975         cerr << "Add locations\n";
1976
1977         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1978
1979                 boost::shared_ptr<Region> region = (*i)->region ();
1980
1981                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1982
1983                 session->locations()->add (location, true);
1984         }
1985
1986         XMLNode &after = session->locations()->get_state();
1987         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
1988         session->commit_reversible_command ();
1989 }
1990
1991 void
1992 Editor::add_location_from_audio_region ()
1993 {
1994         RegionSelection rs;
1995
1996         get_regions_for_action (rs);
1997
1998         if (rs.empty()) {
1999                 return;
2000         }
2001
2002         session->begin_reversible_command (_("add marker"));
2003         XMLNode &before = session->locations()->get_state();
2004
2005         string markername;
2006
2007         if (rs.size() > 1) {            // more than one region selected
2008                 session->locations()->next_available_name(markername, "regions");
2009         } else {
2010                 RegionView* rv = *(rs.begin());
2011                 boost::shared_ptr<Region> region = rv->region();
2012                 markername = region->name();
2013         }
2014
2015         if (!choose_new_marker_name(markername)) {
2016                 return;
2017         }
2018
2019         cerr << "Add location\n";
2020
2021         // single range spanning all selected
2022         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2023         session->locations()->add (location, true);
2024
2025         XMLNode &after = session->locations()->get_state();
2026         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2027         session->commit_reversible_command ();
2028 }
2029
2030 void
2031 Editor::amplitude_zoom_step (bool in)
2032 {
2033         gdouble zoom = 1.0;
2034
2035         if (in) {
2036                 zoom *= 2.0;
2037         } else {
2038                 if (zoom > 2.0) {
2039                         zoom /= 2.0;
2040                 } else {
2041                         zoom = 1.0;
2042                 }
2043         }
2044
2045 #ifdef FIX_FOR_CANVAS
2046         /* XXX DO SOMETHING */
2047 #endif
2048 }
2049
2050
2051 /* DELETION */
2052
2053
2054 void
2055 Editor::delete_sample_forward ()
2056 {
2057 }
2058
2059 void
2060 Editor::delete_sample_backward ()
2061 {
2062 }
2063
2064 void
2065 Editor::delete_screen ()
2066 {
2067 }
2068
2069 /* SEARCH */
2070
2071 void
2072 Editor::search_backwards ()
2073 {
2074         /* what ? */
2075 }
2076
2077 void
2078 Editor::search_forwards ()
2079 {
2080         /* what ? */
2081 }
2082
2083 /* MARKS */
2084
2085 void
2086 Editor::jump_forward_to_mark ()
2087 {
2088         if (!session) {
2089                 return;
2090         }
2091
2092         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2093
2094         if (location) {
2095                 session->request_locate (location->start(), session->transport_rolling());
2096         } else {
2097                 session->request_locate (session->current_end_frame());
2098         }
2099 }
2100
2101 void
2102 Editor::jump_backward_to_mark ()
2103 {
2104         if (!session) {
2105                 return;
2106         }
2107
2108         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2109
2110         if (location) {
2111                 session->request_locate (location->start(), session->transport_rolling());
2112         } else {
2113                 session->goto_start ();
2114         }
2115 }
2116
2117 void
2118 Editor::set_mark ()
2119 {
2120         nframes64_t pos;
2121         float prefix;
2122         bool was_floating;
2123         string markername;
2124
2125         if (get_prefix (prefix, was_floating)) {
2126                 pos = session->audible_frame ();
2127         } else {
2128                 if (was_floating) {
2129                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2130                 } else {
2131                         pos = (nframes64_t) floor (prefix);
2132                 }
2133         }
2134
2135         session->locations()->next_available_name(markername,"mark");
2136         if (!choose_new_marker_name(markername)) {
2137                 return;
2138         }
2139         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2140 }
2141
2142 void
2143 Editor::clear_markers ()
2144 {
2145         if (session) {
2146                 session->begin_reversible_command (_("clear markers"));
2147                 XMLNode &before = session->locations()->get_state();
2148                 session->locations()->clear_markers ();
2149                 XMLNode &after = session->locations()->get_state();
2150                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2151                 session->commit_reversible_command ();
2152         }
2153 }
2154
2155 void
2156 Editor::clear_ranges ()
2157 {
2158         if (session) {
2159                 session->begin_reversible_command (_("clear ranges"));
2160                 XMLNode &before = session->locations()->get_state();
2161
2162                 Location * looploc = session->locations()->auto_loop_location();
2163                 Location * punchloc = session->locations()->auto_punch_location();
2164
2165                 session->locations()->clear_ranges ();
2166                 // re-add these
2167                 if (looploc) session->locations()->add (looploc);
2168                 if (punchloc) session->locations()->add (punchloc);
2169
2170                 XMLNode &after = session->locations()->get_state();
2171                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2172                 session->commit_reversible_command ();
2173         }
2174 }
2175
2176 void
2177 Editor::clear_locations ()
2178 {
2179         session->begin_reversible_command (_("clear locations"));
2180         XMLNode &before = session->locations()->get_state();
2181         session->locations()->clear ();
2182         XMLNode &after = session->locations()->get_state();
2183         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2184         session->commit_reversible_command ();
2185         session->locations()->clear ();
2186 }
2187
2188 void
2189 Editor::unhide_markers ()
2190 {
2191         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2192                 Location *l = (*i).first;
2193                 if (l->is_hidden() && l->is_mark()) {
2194                         l->set_hidden(false, this);
2195                 }
2196         }
2197 }
2198
2199 void
2200 Editor::unhide_ranges ()
2201 {
2202         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2203                 Location *l = (*i).first;
2204                 if (l->is_hidden() && l->is_range_marker()) {
2205                         l->set_hidden(false, this);
2206                 }
2207         }
2208 }
2209
2210 /* INSERT/REPLACE */
2211
2212 void
2213 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2214 {
2215         double wx, wy;
2216         double cx, cy;
2217         nframes64_t where;
2218         RouteTimeAxisView *rtv = 0;
2219         boost::shared_ptr<Playlist> playlist;
2220
2221         track_canvas->window_to_world (x, y, wx, wy);
2222         //wx += horizontal_adjustment.get_value();
2223         //wy += vertical_adjustment.get_value();
2224
2225         GdkEvent event;
2226         event.type = GDK_BUTTON_RELEASE;
2227         event.button.x = wx;
2228         event.button.y = wy;
2229
2230         where = event_frame (&event, &cx, &cy);
2231
2232         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2233                 /* clearly outside canvas area */
2234                 return;
2235         }
2236
2237         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
2238         if (tv.first == 0) {
2239                 return;
2240         }
2241
2242         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2243                 return;
2244         }
2245
2246         if ((playlist = rtv->playlist()) == 0) {
2247                 return;
2248         }
2249
2250         snap_to (where);
2251
2252         begin_reversible_command (_("insert dragged region"));
2253         XMLNode &before = playlist->get_state();
2254         playlist->add_region (RegionFactory::create (region), where, 1.0);
2255         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2256         commit_reversible_command ();
2257 }
2258
2259 void
2260 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y) {
2261         double wx, wy;
2262         double cx, cy;
2263         nframes_t where;
2264         RouteTimeAxisView *dest_rtv = 0;
2265         RouteTimeAxisView *source_rtv = 0;
2266
2267         track_canvas->window_to_world (x, y, wx, wy);
2268         wx += horizontal_adjustment.get_value();
2269         wy += vertical_adjustment.get_value();
2270
2271         GdkEvent event;
2272         event.type = GDK_BUTTON_RELEASE;
2273         event.button.x = wx;
2274         event.button.y = wy;
2275
2276         where = event_frame (&event, &cx, &cy);
2277
2278         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
2279         if (tv.first == 0) {
2280                 return;
2281         }
2282
2283         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2284                 return;
2285         }
2286
2287         /* use this drag source to add underlay to a track. But we really don't care
2288            about the Route, only the view of the route, so find it first */
2289         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2290                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2291                         continue;
2292                 }
2293
2294                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2295                         dest_rtv->add_underlay(source_rtv->view());
2296                         break;
2297                 }
2298         }
2299 }
2300
2301 void
2302 Editor::insert_region_list_selection (float times)
2303 {
2304         RouteTimeAxisView *tv = 0;
2305         boost::shared_ptr<Playlist> playlist;
2306
2307         if (clicked_routeview != 0) {
2308                 tv = clicked_routeview;
2309         } else if (!selection->tracks.empty()) {
2310                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2311                         return;
2312                 }
2313         } else if (entered_track != 0) {
2314                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2315                         return;
2316                 }
2317         } else {
2318                 return;
2319         }
2320
2321         if ((playlist = tv->playlist()) == 0) {
2322                 return;
2323         }
2324
2325         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2326         if (region == 0) {
2327                 return;
2328         }
2329
2330         begin_reversible_command (_("insert region"));
2331         XMLNode &before = playlist->get_state();
2332         playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2333         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2334         commit_reversible_command ();
2335 }
2336
2337 /* BUILT-IN EFFECTS */
2338
2339 void
2340 Editor::reverse_selection ()
2341 {
2342
2343 }
2344
2345 /* GAIN ENVELOPE EDITING */
2346
2347 void
2348 Editor::edit_envelope ()
2349 {
2350 }
2351
2352 /* PLAYBACK */
2353
2354 void
2355 Editor::transition_to_rolling (bool fwd)
2356 {
2357         if (!session) {
2358                 return;
2359         }
2360
2361         switch (Config->get_slave_source()) {
2362         case None:
2363         case JACK:
2364                 break;
2365         default:
2366                 /* transport controlled by the master */
2367                 return;
2368         }
2369
2370         if (session->is_auditioning()) {
2371                 session->cancel_audition ();
2372                 return;
2373         }
2374
2375         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2376 }
2377
2378 void
2379 Editor::toggle_playback (bool with_abort)
2380 {
2381         if (!session) {
2382                 return;
2383         }
2384
2385         switch (Config->get_slave_source()) {
2386         case None:
2387         case JACK:
2388                 break;
2389         default:
2390                 /* transport controlled by the master */
2391                 return;
2392         }
2393
2394         if (session->is_auditioning()) {
2395                 session->cancel_audition ();
2396                 return;
2397         }
2398
2399         if (session->transport_rolling()) {
2400                 session->request_stop (with_abort);
2401                 if (session->get_play_loop()) {
2402                         session->request_play_loop (false);
2403                 }
2404         } else {
2405                 session->request_transport_speed (1.0f);
2406         }
2407 }
2408
2409 void
2410 Editor::play_from_start ()
2411 {
2412         session->request_locate (session->current_start_frame(), true);
2413 }
2414
2415 void
2416 Editor::play_from_edit_point ()
2417 {
2418         session->request_locate (get_preferred_edit_position(), true);
2419 }
2420
2421 void
2422 Editor::play_from_edit_point_and_return ()
2423 {
2424         nframes64_t start_frame;
2425         nframes64_t return_frame;
2426
2427         start_frame = get_preferred_edit_position (true);
2428
2429         if (session->transport_rolling()) {
2430                 session->request_locate (start_frame, false);
2431                 return;
2432         }
2433
2434         /* don't reset the return frame if its already set */
2435
2436         if ((return_frame = session->requested_return_frame()) < 0) {
2437                 return_frame = session->audible_frame();
2438         }
2439
2440         if (start_frame >= 0) {
2441                 session->request_roll_at_and_return (start_frame, return_frame);
2442         }
2443 }
2444
2445 void
2446 Editor::play_selection ()
2447 {
2448         if (selection->time.empty()) {
2449                 return;
2450         }
2451
2452         session->request_play_range (true);
2453 }
2454
2455 void
2456 Editor::loop_selected_region ()
2457 {
2458         RegionSelection rs;
2459
2460         get_regions_for_action (rs);
2461
2462         if (!rs.empty()) {
2463                 RegionView *rv = *(rs.begin());
2464                 Location* tll;
2465
2466                 if ((tll = transport_loop_location()) != 0)  {
2467
2468                         tll->set (rv->region()->position(), rv->region()->last_frame());
2469
2470                         // enable looping, reposition and start rolling
2471
2472                         session->request_play_loop (true);
2473                         session->request_locate (tll->start(), false);
2474                         session->request_transport_speed (1.0f);
2475                 }
2476         }
2477 }
2478
2479 void
2480 Editor::play_location (Location& location)
2481 {
2482         if (location.start() <= location.end()) {
2483                 return;
2484         }
2485
2486         session->request_bounded_roll (location.start(), location.end());
2487 }
2488
2489 void
2490 Editor::loop_location (Location& location)
2491 {
2492         if (location.start() <= location.end()) {
2493                 return;
2494         }
2495
2496         Location* tll;
2497
2498         if ((tll = transport_loop_location()) != 0) {
2499                 tll->set (location.start(), location.end());
2500
2501                 // enable looping, reposition and start rolling
2502                 session->request_play_loop (true);
2503                 session->request_locate (tll->start(), true);
2504         }
2505 }
2506
2507 void
2508 Editor::raise_region ()
2509 {
2510         selection->foreach_region (&Region::raise);
2511 }
2512
2513 void
2514 Editor::raise_region_to_top ()
2515 {
2516         selection->foreach_region (&Region::raise_to_top);
2517 }
2518
2519 void
2520 Editor::lower_region ()
2521 {
2522         selection->foreach_region (&Region::lower);
2523 }
2524
2525 void
2526 Editor::lower_region_to_bottom ()
2527 {
2528         selection->foreach_region (&Region::lower_to_bottom);
2529 }
2530
2531 /** Show the region editor for the selected regions */
2532 void
2533 Editor::edit_region ()
2534 {
2535         selection->foreach_regionview (&RegionView::show_region_editor);
2536 }
2537
2538 void
2539 Editor::rename_region()
2540 {
2541         RegionSelection rs;
2542
2543         get_regions_for_action (rs);
2544
2545         if (rs.empty()) {
2546                 return;
2547         }
2548
2549         WindowTitle title (Glib::get_application_name());
2550         title += _("Rename Region");
2551
2552         ArdourDialog d (*this, title.get_string(), true, false);
2553         Entry entry;
2554         Label label (_("New name:"));
2555         HBox hbox;
2556
2557         hbox.set_spacing (6);
2558         hbox.pack_start (label, false, false);
2559         hbox.pack_start (entry, true, true);
2560
2561         d.get_vbox()->set_border_width (12);
2562         d.get_vbox()->pack_start (hbox, false, false);
2563
2564         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2565         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2566
2567         d.set_size_request (300, -1);
2568         d.set_position (Gtk::WIN_POS_MOUSE);
2569
2570         entry.set_text (rs.front()->region()->name());
2571         entry.select_region (0, -1);
2572
2573         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2574
2575         d.show_all ();
2576
2577         entry.grab_focus();
2578
2579         int ret = d.run();
2580
2581         d.hide ();
2582
2583         if (ret == RESPONSE_OK) {
2584                 std::string str = entry.get_text();
2585                 strip_whitespace_edges (str);
2586                 if (!str.empty()) {
2587                         rs.front()->region()->set_name (str);
2588                         _regions->redisplay ();
2589                 }
2590         }
2591 }
2592
2593 void
2594 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2595 {
2596         if (session->is_auditioning()) {
2597                 session->cancel_audition ();
2598         }
2599
2600         // note: some potential for creativity here, because region doesn't
2601         // have to belong to the playlist that Route is handling
2602
2603         // bool was_soloed = route.soloed();
2604
2605         route.set_solo (true, this);
2606
2607         session->request_bounded_roll (region->position(), region->position() + region->length());
2608
2609         /* XXX how to unset the solo state ? */
2610 }
2611
2612 /** Start an audition of the first selected region */
2613 void
2614 Editor::play_edit_range ()
2615 {
2616         nframes64_t start, end;
2617
2618         if (get_edit_op_range (start, end)) {
2619                 session->request_bounded_roll (start, end);
2620         }
2621 }
2622
2623 void
2624 Editor::play_selected_region ()
2625 {
2626         nframes64_t start = max_frames;
2627         nframes64_t end = 0;
2628         RegionSelection rs;
2629
2630         get_regions_for_action (rs);
2631
2632         if (rs.empty()) {
2633                 return;
2634         }
2635
2636         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2637                 if ((*i)->region()->position() < start) {
2638                         start = (*i)->region()->position();
2639                 }
2640                 if ((*i)->region()->last_frame() + 1 > end) {
2641                         end = (*i)->region()->last_frame() + 1;
2642                 }
2643         }
2644
2645         session->request_stop ();
2646         session->request_bounded_roll (start, end);
2647 }
2648
2649 void
2650 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2651 {
2652         session->audition_region (region);
2653 }
2654
2655 void
2656 Editor::build_interthread_progress_window ()
2657 {
2658         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2659
2660         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2661
2662         interthread_progress_window->set_border_width (12);
2663         interthread_progress_window->get_vbox()->set_spacing (6);
2664
2665         interthread_progress_label.set_alignment (0.5, 0.5);
2666
2667         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2668         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2669
2670         // GTK2FIX: this button needs a modifiable label
2671
2672         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2673         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2674
2675         interthread_cancel_button.add (interthread_cancel_label);
2676
2677         interthread_progress_window->set_default_size (200, 100);
2678 }
2679
2680 void
2681 Editor::interthread_cancel_clicked ()
2682 {
2683         if (current_interthread_info) {
2684                 current_interthread_info->cancel = true;
2685         }
2686 }
2687
2688 void
2689 Editor::region_from_selection ()
2690 {
2691         if (clicked_axisview == 0) {
2692                 return;
2693         }
2694
2695         if (selection->time.empty()) {
2696                 return;
2697         }
2698
2699         nframes64_t start = selection->time[clicked_selection].start;
2700         nframes64_t end = selection->time[clicked_selection].end;
2701
2702         TrackSelection tracks = get_tracks_for_range_action ();
2703
2704         nframes64_t selection_cnt = end - start + 1;
2705
2706         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2707                 boost::shared_ptr<Region> current;
2708                 boost::shared_ptr<Playlist> pl;
2709                 nframes64_t internal_start;
2710                 string new_name;
2711
2712                 if ((pl = (*i)->playlist()) == 0) {
2713                         continue;
2714                 }
2715
2716                 if ((current = pl->top_region_at (start)) == 0) {
2717                         continue;
2718                 }
2719
2720                 internal_start = start - current->position();
2721                 session->region_name (new_name, current->name(), true);
2722                 boost::shared_ptr<Region> region (RegionFactory::create (current,
2723                                 internal_start, selection_cnt, new_name));
2724         }
2725 }
2726
2727 void
2728 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2729 {
2730         if (selection->time.empty() || selection->tracks.empty()) {
2731                 return;
2732         }
2733
2734         nframes64_t start = selection->time[clicked_selection].start;
2735         nframes64_t end = selection->time[clicked_selection].end;
2736
2737         sort_track_selection ();
2738
2739         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2740                 boost::shared_ptr<Region> current;
2741                 boost::shared_ptr<Playlist> playlist;
2742                 nframes64_t internal_start;
2743                 string new_name;
2744
2745                 if ((playlist = (*i)->playlist()) == 0) {
2746                         continue;
2747                 }
2748
2749                 if ((current = playlist->top_region_at(start)) == 0) {
2750                         continue;
2751                 }
2752
2753                 internal_start = start - current->position();
2754                 session->region_name (new_name, current->name(), true);
2755
2756                 new_regions.push_back (RegionFactory::create (current,
2757                                         internal_start, end - start + 1, new_name));
2758         }
2759 }
2760
2761 void
2762 Editor::split_multichannel_region ()
2763 {
2764         RegionSelection rs;
2765
2766         get_regions_for_action (rs);
2767
2768         if (rs.empty()) {
2769                 return;
2770         }
2771
2772         vector< boost::shared_ptr<Region> > v;
2773
2774         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2775                 (*x)->region()->separate_by_channel (*session, v);
2776         }
2777 }
2778
2779 void
2780 Editor::new_region_from_selection ()
2781 {
2782         region_from_selection ();
2783         cancel_selection ();
2784 }
2785
2786 static void
2787 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2788 {
2789         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2790         case OverlapNone:
2791                 break;
2792         default:
2793                 rs->push_back (rv);
2794         }
2795 }
2796
2797 /** Return either:
2798  *    - selected tracks, or if there are none...
2799  *    - tracks containing selected regions, or if there are none...
2800  *    - all tracks
2801  * @return tracks.
2802  */
2803 TrackSelection
2804 Editor::get_tracks_for_range_action () const
2805 {
2806         TrackSelection t;
2807
2808         if (selection->tracks.empty()) {
2809
2810                 /* use tracks with selected regions */
2811
2812                 RegionSelection rs = selection->regions;
2813
2814                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2815                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2816
2817                         if (!t.contains (tv)) {
2818                                 t.push_back (tv);
2819                         }
2820                 }
2821
2822                 if (t.empty()) {
2823                         /* no regions and no tracks: use all tracks */
2824                         t = track_views;
2825                 }
2826
2827         } else {
2828
2829                 t = selection->tracks;
2830         }
2831
2832         return t;
2833 }
2834
2835 void
2836 Editor::separate_regions_between (const TimeSelection& ts)
2837 {
2838         bool in_command = false;
2839         boost::shared_ptr<Playlist> playlist;
2840         RegionSelection new_selection;
2841
2842         TrackSelection tmptracks = get_tracks_for_range_action ();
2843         sort_track_selection (&tmptracks);
2844
2845         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2846
2847                 RouteTimeAxisView* rtv;
2848
2849                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2850
2851                         if (rtv->is_track()) {
2852
2853                                 /* no edits to destructive tracks */
2854
2855                                 if (rtv->track()->diskstream()->destructive()) {
2856                                         continue;
2857                                 }
2858
2859                                 if ((playlist = rtv->playlist()) != 0) {
2860
2861                                         XMLNode *before;
2862                                         bool got_some;
2863
2864                                         before = &(playlist->get_state());
2865                                         got_some = false;
2866
2867                                         /* XXX need to consider musical time selections here at some point */
2868
2869                                         double speed = rtv->get_diskstream()->speed();
2870
2871
2872                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2873
2874                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2875                                                                 mem_fun(*this, &Editor::collect_new_region_view));
2876                                                 latest_regionviews.clear ();
2877
2878                                                 playlist->partition ((nframes64_t)((*t).start * speed),
2879                                                                 (nframes64_t)((*t).end * speed), true);
2880
2881                                                 c.disconnect ();
2882
2883                                                 if (!latest_regionviews.empty()) {
2884
2885                                                         got_some = true;
2886
2887                                                         rtv->view()->foreach_regionview (bind (
2888                                                                                 sigc::ptr_fun (add_if_covered),
2889                                                                                 &(*t), &new_selection));
2890
2891                                                         if (!in_command) {
2892                                                                 begin_reversible_command (_("separate"));
2893                                                                 in_command = true;
2894                                                         }
2895
2896                                                         session->add_command(new MementoCommand<Playlist>(
2897                                                                         *playlist, before, &playlist->get_state()));
2898                                                 }
2899                                         }
2900
2901                                         if (!got_some) {
2902                                                 delete before;
2903                                         }
2904                                 }
2905                         }
2906                 }
2907         }
2908
2909         if (in_command) {
2910                 selection->set (new_selection);
2911                 set_mouse_mode (MouseObject);
2912
2913                 commit_reversible_command ();
2914         }
2915 }
2916
2917 /** Take tracks from get_tracks_for_range_action and cut any regions
2918  *  on those tracks so that the tracks are empty over the time
2919  *  selection.
2920  */
2921 void
2922 Editor::separate_region_from_selection ()
2923 {
2924         /* preferentially use *all* ranges in the time selection if we're in range mode
2925            to allow discontiguous operation, since get_edit_op_range() currently
2926            returns a single range.
2927         */
2928
2929         if (mouse_mode == MouseRange && !selection->time.empty()) {
2930
2931                 separate_regions_between (selection->time);
2932
2933         } else {
2934
2935                 nframes64_t start;
2936                 nframes64_t end;
2937
2938                 if (get_edit_op_range (start, end)) {
2939
2940                         AudioRange ar (start, end, 1);
2941                         TimeSelection ts;
2942                         ts.push_back (ar);
2943
2944                         separate_regions_between (ts);
2945                 }
2946         }
2947 }
2948
2949 void
2950 Editor::separate_region_from_punch ()
2951 {
2952         Location* loc  = session->locations()->auto_punch_location();
2953         if (loc) {
2954                 separate_regions_using_location (*loc);
2955         }
2956 }
2957
2958 void
2959 Editor::separate_region_from_loop ()
2960 {
2961         Location* loc  = session->locations()->auto_loop_location();
2962         if (loc) {
2963                 separate_regions_using_location (*loc);
2964         }
2965 }
2966
2967 void
2968 Editor::separate_regions_using_location (Location& loc)
2969 {
2970         if (loc.is_mark()) {
2971                 return;
2972         }
2973
2974         AudioRange ar (loc.start(), loc.end(), 1);
2975         TimeSelection ts;
2976
2977         ts.push_back (ar);
2978
2979         separate_regions_between (ts);
2980 }
2981
2982 void
2983 Editor::crop_region_to_selection ()
2984 {
2985         if (!selection->time.empty()) {
2986
2987                 crop_region_to (selection->time.start(), selection->time.end_frame());
2988
2989         } else {
2990
2991                 nframes64_t start;
2992                 nframes64_t end;
2993
2994                 if (get_edit_op_range (start, end)) {
2995                         crop_region_to (start, end);
2996                 }
2997         }
2998
2999 }
3000
3001 void
3002 Editor::crop_region_to (nframes64_t start, nframes64_t end)
3003 {
3004         vector<boost::shared_ptr<Playlist> > playlists;
3005         boost::shared_ptr<Playlist> playlist;
3006         TrackSelection* ts;
3007
3008         if (selection->tracks.empty()) {
3009                 ts = &track_views;
3010         } else {
3011                 sort_track_selection ();
3012                 ts = &selection->tracks;
3013         }
3014
3015         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3016
3017                 RouteTimeAxisView* rtv;
3018
3019                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
3020
3021                         boost::shared_ptr<Track> t = rtv->track();
3022
3023                         if (t != 0 && ! t->diskstream()->destructive()) {
3024
3025                                 if ((playlist = rtv->playlist()) != 0) {
3026                                         playlists.push_back (playlist);
3027                                 }
3028                         }
3029                 }
3030         }
3031
3032         if (playlists.empty()) {
3033                 return;
3034         }
3035
3036         nframes64_t the_start;
3037         nframes64_t the_end;
3038         nframes64_t cnt;
3039
3040         begin_reversible_command (_("trim to selection"));
3041
3042         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3043
3044                 boost::shared_ptr<Region> region;
3045
3046                 the_start = start;
3047
3048                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3049                         continue;
3050                 }
3051
3052                 /* now adjust lengths to that we do the right thing
3053                    if the selection extends beyond the region
3054                 */
3055
3056                 the_start = max (the_start, (nframes64_t) region->position());
3057                 if (max_frames - the_start < region->length()) {
3058                         the_end = the_start + region->length() - 1;
3059                 } else {
3060                         the_end = max_frames;
3061                 }
3062                 the_end = min (end, the_end);
3063                 cnt = the_end - the_start + 1;
3064
3065                 XMLNode &before = (*i)->get_state();
3066                 region->trim_to (the_start, cnt, this);
3067                 XMLNode &after = (*i)->get_state();
3068                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3069         }
3070
3071         commit_reversible_command ();
3072 }
3073
3074 void
3075 Editor::region_fill_track ()
3076 {
3077         nframes64_t end;
3078         RegionSelection rs;
3079
3080         get_regions_for_action (rs);
3081
3082         if (!session || rs.empty()) {
3083                 return;
3084         }
3085
3086         end = session->current_end_frame ();
3087
3088         begin_reversible_command (_("region fill"));
3089
3090         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3091
3092                 boost::shared_ptr<Region> region ((*i)->region());
3093
3094                 // FIXME
3095                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3096                 assert(ar);
3097
3098                 boost::shared_ptr<Playlist> pl = region->playlist();
3099
3100                 if (end <= region->last_frame()) {
3101                         return;
3102                 }
3103
3104                 double times = (double) (end - region->last_frame()) / (double) region->length();
3105
3106                 if (times == 0) {
3107                         return;
3108                 }
3109
3110                 XMLNode &before = pl->get_state();
3111                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3112                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3113         }
3114
3115         commit_reversible_command ();
3116 }
3117
3118 void
3119 Editor::region_fill_selection ()
3120 {
3121         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3122                 return;
3123         }
3124
3125         if (selection->time.empty()) {
3126                 return;
3127         }
3128
3129         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3130         if (region == 0) {
3131                 return;
3132         }
3133
3134         nframes64_t start = selection->time[clicked_selection].start;
3135         nframes64_t end = selection->time[clicked_selection].end;
3136
3137         boost::shared_ptr<Playlist> playlist;
3138
3139         if (selection->tracks.empty()) {
3140                 return;
3141         }
3142
3143         nframes64_t selection_length = end - start;
3144         float times = (float)selection_length / region->length();
3145
3146         begin_reversible_command (_("fill selection"));
3147
3148         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3149
3150                 if ((playlist = (*i)->playlist()) == 0) {
3151                         continue;
3152                 }
3153
3154                 XMLNode &before = playlist->get_state();
3155                 playlist->add_region (RegionFactory::create (region), start, times);
3156                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3157         }
3158
3159         commit_reversible_command ();
3160 }
3161
3162 void
3163 Editor::set_region_sync_from_edit_point ()
3164 {
3165         nframes64_t where = get_preferred_edit_position ();
3166         RegionSelection rs;
3167         get_regions_for_action (rs);
3168         set_sync_point (where, rs);
3169 }
3170
3171 void
3172 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3173 {
3174         bool in_command = false;
3175
3176         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3177
3178                 if (!(*r)->region()->covers (where)) {
3179                         continue;
3180                 }
3181
3182                 boost::shared_ptr<Region> region ((*r)->region());
3183
3184                 if (!in_command) {
3185                         begin_reversible_command (_("set sync point"));
3186                         in_command = true;
3187                 }
3188
3189                 XMLNode &before = region->playlist()->get_state();
3190                 region->set_sync_position (get_preferred_edit_position());
3191                 XMLNode &after = region->playlist()->get_state();
3192                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3193         }
3194
3195         if (in_command) {
3196                 commit_reversible_command ();
3197         }
3198 }
3199
3200 /** Remove the sync positions of the selection */
3201 void
3202 Editor::remove_region_sync ()
3203 {
3204         RegionSelection rs;
3205
3206         get_regions_for_action (rs);
3207
3208         if (rs.empty()) {
3209                 return;
3210         }
3211
3212         begin_reversible_command (_("remove sync"));
3213         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3214
3215                 XMLNode &before = (*i)->region()->playlist()->get_state();
3216                 (*i)->region()->clear_sync_position ();
3217                 XMLNode &after = (*i)->region()->playlist()->get_state();
3218                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3219         }
3220         commit_reversible_command ();
3221 }
3222
3223 void
3224 Editor::naturalize ()
3225 {
3226         RegionSelection rs;
3227
3228         get_regions_for_action (rs);
3229
3230         if (rs.empty()) {
3231                 return;
3232         }
3233
3234         begin_reversible_command (_("naturalize"));
3235         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3236                 XMLNode &before = (*i)->region()->get_state();
3237                 (*i)->region()->move_to_natural_position (this);
3238                 XMLNode &after = (*i)->region()->get_state();
3239                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3240         }
3241         commit_reversible_command ();
3242 }
3243
3244 void
3245 Editor::align (RegionPoint what)
3246 {
3247         RegionSelection rs;
3248
3249         get_regions_for_action (rs);
3250         nframes64_t where = get_preferred_edit_position();
3251
3252         if (!rs.empty()) {
3253                 align_selection (what, where, rs);
3254         } else {
3255
3256                 RegionSelection rs;
3257                 get_regions_at (rs, where, selection->tracks);
3258                 align_selection (what, where, rs);
3259         }
3260 }
3261
3262 void
3263 Editor::align_relative (RegionPoint what)
3264 {
3265         nframes64_t where = get_preferred_edit_position();
3266         RegionSelection rs;
3267
3268         get_regions_for_action (rs);
3269
3270         if (!rs.empty()) {
3271                 align_selection_relative (what, where, rs);
3272         }
3273 }
3274
3275 struct RegionSortByTime {
3276     bool operator() (const RegionView* a, const RegionView* b) {
3277             return a->region()->position() < b->region()->position();
3278     }
3279 };
3280
3281 void
3282 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3283 {
3284         if (rs.empty()) {
3285                 return;
3286         }
3287
3288         nframes64_t distance = 0;
3289         nframes64_t pos = 0;
3290         int dir = 1;
3291
3292         list<RegionView*> sorted;
3293         rs.by_position (sorted);
3294
3295         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3296
3297         switch (point) {
3298         case Start:
3299                 pos = position;
3300                 if (position > r->position()) {
3301                         distance = position - r->position();
3302                 } else {
3303                         distance = r->position() - position;
3304                         dir = -1;
3305                 }
3306                 break;
3307
3308         case End:
3309                 if (position > r->last_frame()) {
3310                         distance = position - r->last_frame();
3311                         pos = r->position() + distance;
3312                 } else {
3313                         distance = r->last_frame() - position;
3314                         pos = r->position() - distance;
3315                         dir = -1;
3316                 }
3317                 break;
3318
3319         case SyncPoint:
3320                 pos = r->adjust_to_sync (position);
3321                 if (pos > r->position()) {
3322                         distance = pos - r->position();
3323                 } else {
3324                         distance = r->position() - pos;
3325                         dir = -1;
3326                 }
3327                 break;
3328         }
3329
3330         if (pos == r->position()) {
3331                 return;
3332         }
3333
3334         begin_reversible_command (_("align selection (relative)"));
3335
3336         /* move first one specially */
3337
3338         XMLNode &before = r->playlist()->get_state();
3339         r->set_position (pos, this);
3340         XMLNode &after = r->playlist()->get_state();
3341         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3342
3343         /* move rest by the same amount */
3344
3345         sorted.pop_front();
3346
3347         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3348
3349                 boost::shared_ptr<Region> region ((*i)->region());
3350
3351                 XMLNode &before = region->playlist()->get_state();
3352
3353                 if (dir > 0) {
3354                         region->set_position (region->position() + distance, this);
3355                 } else {
3356                         region->set_position (region->position() - distance, this);
3357                 }
3358
3359                 XMLNode &after = region->playlist()->get_state();
3360                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3361
3362         }
3363
3364         commit_reversible_command ();
3365 }
3366
3367 void
3368 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3369 {
3370         if (rs.empty()) {
3371                 return;
3372         }
3373
3374         begin_reversible_command (_("align selection"));
3375
3376         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3377                 align_region_internal ((*i)->region(), point, position);
3378         }
3379
3380         commit_reversible_command ();
3381 }
3382
3383 void
3384 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3385 {
3386         begin_reversible_command (_("align region"));
3387         align_region_internal (region, point, position);
3388         commit_reversible_command ();
3389 }
3390
3391 void
3392 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3393 {
3394         XMLNode &before = region->playlist()->get_state();
3395
3396         switch (point) {
3397         case SyncPoint:
3398                 region->set_position (region->adjust_to_sync (position), this);
3399                 break;
3400
3401         case End:
3402                 if (position > region->length()) {
3403                         region->set_position (position - region->length(), this);
3404                 }
3405                 break;
3406
3407         case Start:
3408                 region->set_position (position, this);
3409                 break;
3410         }
3411
3412         XMLNode &after = region->playlist()->get_state();
3413         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3414 }
3415
3416 void
3417 Editor::trim_region_front ()
3418 {
3419         trim_region (true);
3420 }
3421
3422 void
3423 Editor::trim_region_back ()
3424 {
3425         trim_region (false);
3426 }
3427
3428 void
3429 Editor::trim_region (bool front)
3430 {
3431         nframes64_t where = get_preferred_edit_position();
3432         RegionSelection rs;
3433
3434         get_regions_for_action (rs);
3435
3436         if (rs.empty()) {
3437                 return;
3438         }
3439
3440         begin_reversible_command (front ? _("trim front") : _("trim back"));
3441
3442         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3443                 if (!(*i)->region()->locked()) {
3444                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
3445                         XMLNode &before = pl->get_state();
3446                         if (front) {
3447                                 (*i)->region()->trim_front (where, this);
3448                         } else {
3449                                 (*i)->region()->trim_end (where, this);
3450                         }
3451                         XMLNode &after = pl->get_state();
3452                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
3453                 }
3454         }
3455
3456         commit_reversible_command ();
3457 }
3458
3459 /** Trim the end of the selected regions to the position of the edit cursor */
3460 void
3461 Editor::trim_region_to_loop ()
3462 {
3463         Location* loc = session->locations()->auto_loop_location();
3464         if (!loc) {
3465                 return;
3466         }
3467         trim_region_to_location (*loc, _("trim to loop"));
3468 }
3469
3470 void
3471 Editor::trim_region_to_punch ()
3472 {
3473         Location* loc = session->locations()->auto_punch_location();
3474         if (!loc) {
3475                 return;
3476         }
3477         trim_region_to_location (*loc, _("trim to punch"));
3478 }
3479 void
3480 Editor::trim_region_to_location (const Location& loc, const char* str)
3481 {
3482         RegionSelection rs;
3483
3484         get_regions_for_action (rs);
3485
3486         begin_reversible_command (str);
3487
3488         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3489                 RegionView* rv = (*x);
3490
3491                 /* require region to span proposed trim */
3492                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3493                 case OverlapInternal:
3494                         break;
3495                 default:
3496                         continue;
3497                 }
3498
3499                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3500                 if (!tav) {
3501                         return;
3502                 }
3503
3504                 float speed = 1.0;
3505                 nframes64_t start;
3506                 nframes64_t end;
3507
3508                 if (tav->get_diskstream() != 0) {
3509                         speed = tav->get_diskstream()->speed();
3510                 }
3511
3512                 start = session_frame_to_track_frame (loc.start(), speed);
3513                 end = session_frame_to_track_frame (loc.end(), speed);
3514
3515                 XMLNode &before = rv->region()->playlist()->get_state();
3516                 rv->region()->trim_to (start, (end - start), 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_to_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 start 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_end( 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_from_edit_point ()
3567 {
3568         RegionSelection rs;
3569
3570         get_regions_for_action (rs);
3571
3572         nframes64_t where = get_preferred_edit_position();
3573
3574         begin_reversible_command (_("trim region end to edit point"));
3575
3576         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3577                 RegionView* rv = (*x);
3578
3579                 /* require region to cover trim */
3580                 if (!rv->region()->covers (where)) {
3581                         continue;
3582                 }
3583
3584                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3585                 if (!tav) {
3586                         return;
3587                 }
3588
3589                 float speed = 1.0;
3590
3591                 if (tav->get_diskstream() != 0) {
3592                         speed = tav->get_diskstream()->speed();
3593                 }
3594
3595                 XMLNode &before = rv->region()->playlist()->get_state();
3596                 rv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3597                 XMLNode &after = rv->region()->playlist()->get_state();
3598                 session->add_command(new MementoCommand<Playlist>(
3599                                 *(rv->region()->playlist()), &before, &after));
3600         }
3601
3602         commit_reversible_command ();
3603 }
3604
3605 void
3606 Editor::trim_region_to_previous_region_end ()
3607 {
3608         return trim_to_region(false);
3609 }
3610
3611 void
3612 Editor::trim_region_to_next_region_start ()
3613 {
3614         return trim_to_region(true);
3615 }
3616
3617 void
3618 Editor::trim_to_region(bool forward)
3619 {
3620         RegionSelection rs;
3621
3622         get_regions_for_action (rs);
3623
3624         begin_reversible_command (_("trim to region"));
3625
3626         boost::shared_ptr<Region> next_region;
3627
3628         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3629
3630                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3631
3632                 if (!arv) {
3633                         continue;
3634                 }
3635
3636                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3637
3638                 if (!atav) {
3639                         return;
3640                 }
3641
3642                 float speed = 1.0;
3643
3644                 if (atav->get_diskstream() != 0) {
3645                         speed = atav->get_diskstream()->speed();
3646                 }
3647
3648
3649                 boost::shared_ptr<Region> region = arv->region();
3650                 boost::shared_ptr<Playlist> playlist (region->playlist());
3651
3652                 XMLNode &before = playlist->get_state();
3653
3654                 if(forward){
3655
3656                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3657
3658                     if(!next_region){
3659                         continue;
3660                     }
3661
3662                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3663                     arv->region_changed (Change (LengthChanged));
3664                 }
3665                 else {
3666
3667                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3668
3669                     if(!next_region){
3670                         continue;
3671                     }
3672
3673                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3674                     arv->region_changed (Change (LengthChanged|PositionChanged|StartChanged));
3675                 }
3676
3677                 XMLNode &after = playlist->get_state();
3678                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3679         }
3680
3681         commit_reversible_command ();
3682 }
3683
3684 void
3685 Editor::unfreeze_route ()
3686 {
3687         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3688                 return;
3689         }
3690
3691         clicked_routeview->track()->unfreeze ();
3692 }
3693
3694 void*
3695 Editor::_freeze_thread (void* arg)
3696 {
3697         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3698         return static_cast<Editor*>(arg)->freeze_thread ();
3699 }
3700
3701 void*
3702 Editor::freeze_thread ()
3703 {
3704         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3705         current_interthread_info->done = true;
3706         return 0;
3707 }
3708
3709 gint
3710 Editor::freeze_progress_timeout (void */*arg*/)
3711 {
3712         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3713         return !(current_interthread_info->done || current_interthread_info->cancel);
3714 }
3715
3716 void
3717 Editor::freeze_route ()
3718 {
3719         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3720                 return;
3721         }
3722
3723         InterThreadInfo itt;
3724
3725         if (interthread_progress_window == 0) {
3726                 build_interthread_progress_window ();
3727         }
3728
3729         WindowTitle title(Glib::get_application_name());
3730         title += _("Freeze");
3731         interthread_progress_window->set_title (title.get_string());
3732         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3733         interthread_progress_window->show_all ();
3734         interthread_progress_bar.set_fraction (0.0f);
3735         interthread_progress_label.set_text ("");
3736         interthread_cancel_label.set_text (_("Cancel Freeze"));
3737         current_interthread_info = &itt;
3738
3739         interthread_progress_connection =
3740           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3741
3742         itt.done = false;
3743         itt.cancel = false;
3744         itt.progress = 0.0f;
3745
3746         pthread_attr_t attr;
3747         pthread_attr_init(&attr);
3748         pthread_attr_setstacksize(&attr, 500000);
3749
3750         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3751
3752         pthread_attr_destroy(&attr);
3753
3754         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3755
3756         while (!itt.done && !itt.cancel) {
3757                 gtk_main_iteration ();
3758         }
3759
3760         interthread_progress_connection.disconnect ();
3761         interthread_progress_window->hide_all ();
3762         current_interthread_info = 0;
3763         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3764 }
3765
3766 void
3767 Editor::bounce_range_selection (bool replace, bool enable_processing)
3768 {
3769         if (selection->time.empty()) {
3770                 return;
3771         }
3772
3773         TrackSelection views = selection->tracks;
3774
3775         nframes64_t start = selection->time[clicked_selection].start;
3776         nframes64_t end = selection->time[clicked_selection].end;
3777         nframes64_t cnt = end - start + 1;
3778
3779         begin_reversible_command (_("bounce range"));
3780
3781         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3782
3783                 RouteTimeAxisView* rtv;
3784
3785                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3786                         continue;
3787                 }
3788
3789                 boost::shared_ptr<Playlist> playlist;
3790
3791                 if ((playlist = rtv->playlist()) == 0) {
3792                         return;
3793                 }
3794
3795                 InterThreadInfo itt;
3796
3797                 itt.done = false;
3798                 itt.cancel = false;
3799                 itt.progress = false;
3800
3801                 XMLNode &before = playlist->get_state();
3802                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3803
3804                 if (replace) {
3805                         list<AudioRange> ranges;
3806                         ranges.push_back (AudioRange (start, start+cnt, 0));
3807                         playlist->cut (ranges); // discard result
3808                         playlist->add_region (r, start);
3809                 }
3810
3811                 XMLNode &after = playlist->get_state();
3812                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3813         }
3814
3815         commit_reversible_command ();
3816 }
3817
3818 /** Cut selected regions, automation points or a time range */
3819 void
3820 Editor::cut ()
3821 {
3822         cut_copy (Cut);
3823 }
3824
3825 /** Copy selected regions, automation points or a time range */
3826 void
3827 Editor::copy ()
3828 {
3829         cut_copy (Copy);
3830 }
3831
3832
3833 /** @return true if a Cut, Copy or Clear is possible */
3834 bool
3835 Editor::can_cut_copy () const
3836 {
3837         switch (current_mouse_mode()) {
3838
3839         case MouseObject:
3840                 if (!selection->regions.empty() || !selection->points.empty()) {
3841                         return true;
3842                 }
3843                 break;
3844
3845         case MouseRange:
3846                 if (!selection->time.empty()) {
3847                         return true;
3848                 }
3849                 break;
3850
3851         default:
3852                 break;
3853         }
3854
3855         return false;
3856 }
3857
3858
3859 /** Cut, copy or clear selected regions, automation points or a time range.
3860  * @param op Operation (Cut, Copy or Clear)
3861  */
3862 void
3863 Editor::cut_copy (CutCopyOp op)
3864 {
3865         /* only cancel selection if cut/copy is successful.*/
3866
3867         string opname;
3868
3869         switch (op) {
3870         case Cut:
3871                 opname = _("cut");
3872                 break;
3873         case Copy:
3874                 opname = _("copy");
3875                 break;
3876         case Clear:
3877                 opname = _("clear");
3878                 break;
3879         }
3880
3881         /* if we're deleting something, and the mouse is still pressed,
3882            the thing we started a drag for will be gone when we release
3883            the mouse button(s). avoid this. see part 2 at the end of
3884            this function.
3885         */
3886
3887         if (op == Cut || op == Clear) {
3888                 if (_drag) {
3889                         _drag->item()->ungrab (0);
3890                         delete _drag;
3891                         _drag = 0;
3892                 }
3893         }
3894
3895         cut_buffer->clear ();
3896
3897         if (entered_marker) {
3898
3899                 /* cut/delete op while pointing at a marker */
3900
3901                 bool ignored;
3902                 Location* loc = find_location_from_marker (entered_marker, ignored);
3903
3904                 if (session && loc) {
3905                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3906                 }
3907
3908                 break_drag ();
3909                 delete _drag;
3910                 _drag = 0;
3911
3912                 return;
3913         }
3914
3915         if (internal_editing()) {
3916
3917                 switch (current_mouse_mode()) {
3918                 case MouseObject:
3919                 case MouseRange:
3920                         cut_copy_midi (op);
3921                         break;
3922                 default:
3923                         break;
3924                 }
3925
3926         } else {
3927
3928                 RegionSelection rs;
3929
3930                 /* we only want to cut regions if some are selected */
3931
3932                 if (!selection->regions.empty()) {
3933                         get_regions_for_action (rs, false, false);
3934                 }
3935
3936                 switch (current_mouse_mode()) {
3937                 case MouseObject:
3938                         if (!rs.empty() || !selection->points.empty()) {
3939
3940                                 begin_reversible_command (opname + _(" objects"));
3941
3942                                 if (!rs.empty()) {
3943                                         cut_copy_regions (op, rs);
3944
3945                                         if (op == Cut) {
3946                                                 selection->clear_regions ();
3947                                         }
3948                                 }
3949
3950                                 if (!selection->points.empty()) {
3951                                         cut_copy_points (op);
3952
3953                                         if (op == Cut) {
3954                                                 selection->clear_points ();
3955                                         }
3956                                 }
3957
3958                                 commit_reversible_command ();
3959                                 break; // terminate case statement here
3960                         }
3961                         if (!selection->time.empty()) {
3962                                 /* don't cause suprises */
3963                                 break;
3964                         }
3965                         // fall thru if there was nothing selected
3966
3967                 case MouseRange:
3968                         if (selection->time.empty()) {
3969                                 nframes64_t start, end;
3970                                 if (!get_edit_op_range (start, end)) {
3971                                         return;
3972                                 }
3973                                 selection->set ((TimeAxisView*) 0, start, end);
3974                         }
3975
3976                         begin_reversible_command (opname + _(" range"));
3977                         cut_copy_ranges (op);
3978                         commit_reversible_command ();
3979
3980                         if (op == Cut) {
3981                                 selection->clear_time ();
3982                         }
3983
3984                         break;
3985
3986                 default:
3987                         break;
3988                 }
3989         }
3990
3991         if (op == Cut || op == Clear) {
3992                 break_drag ();
3993                 delete _drag;
3994                 _drag = 0;
3995         }
3996 }
3997
3998 /** Cut, copy or clear selected automation points.
3999  * @param op Operation (Cut, Copy or Clear)
4000  */
4001 void
4002 Editor::cut_copy_points (CutCopyOp op)
4003 {
4004         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4005
4006                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4007
4008                 if (atv) {
4009                         atv->cut_copy_clear_objects (selection->points, op);
4010                 }
4011         }
4012 }
4013
4014 /** Cut, copy or clear selected automation points.
4015  * @param op Operation (Cut, Copy or Clear)
4016  */
4017 void
4018 Editor::cut_copy_midi (CutCopyOp op)
4019 {
4020         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
4021                 MidiRegionView* mrv = *i;
4022                 mrv->cut_copy_clear (op);
4023         }
4024 }
4025
4026 struct PlaylistState {
4027     boost::shared_ptr<Playlist> playlist;
4028     XMLNode*  before;
4029 };
4030
4031 struct lt_playlist {
4032     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4033             return a.playlist < b.playlist;
4034     }
4035 };
4036
4037 struct PlaylistMapping {
4038     TimeAxisView* tv;
4039     boost::shared_ptr<Playlist> pl;
4040
4041     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4042 };
4043
4044 /** Remove `clicked_regionview' */
4045 void
4046 Editor::remove_clicked_region ()
4047 {
4048         if (clicked_routeview == 0 || clicked_regionview == 0) {
4049                 return;
4050         }
4051
4052         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4053
4054         begin_reversible_command (_("remove region"));
4055         XMLNode &before = playlist->get_state();
4056         playlist->remove_region (clicked_regionview->region());
4057         XMLNode &after = playlist->get_state();
4058         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4059         commit_reversible_command ();
4060 }
4061
4062
4063 /** Remove the selected regions */
4064 void
4065 Editor::remove_selected_regions ()
4066 {
4067         RegionSelection rs;
4068         get_regions_for_action (rs);
4069
4070         if (!session) {
4071                 return;
4072         }
4073
4074         if (rs.empty()) {
4075                 return;
4076         }
4077
4078         begin_reversible_command (_("remove region"));
4079
4080         list<boost::shared_ptr<Region> > regions_to_remove;
4081
4082         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4083                 // we can't just remove the region(s) in this loop because
4084                 // this removes them from the RegionSelection, and they thus
4085                 // disappear from underneath the iterator, and the ++i above
4086                 // SEGVs in a puzzling fashion.
4087
4088                 // so, first iterate over the regions to be removed from rs and
4089                 // add them to the regions_to_remove list, and then
4090                 // iterate over the list to actually remove them.
4091
4092                 regions_to_remove.push_back ((*i)->region());
4093         }
4094
4095         vector<PlaylistState> playlists;
4096
4097         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4098
4099                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4100
4101                 if (!playlist) {
4102                         // is this check necessary?
4103                         continue;
4104                 }
4105
4106                 vector<PlaylistState>::iterator i;
4107
4108                 //only take state if this is a new playlist.
4109                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4110                         if ((*i).playlist == playlist) {
4111                                 break;
4112                         }
4113                 }
4114
4115                 if (i == playlists.end()) {
4116
4117                         PlaylistState before;
4118                         before.playlist = playlist;
4119                         before.before = &playlist->get_state();
4120
4121                         playlist->freeze ();
4122                         playlists.push_back(before);
4123                 }
4124
4125                 playlist->remove_region (*rl);
4126         }
4127
4128         vector<PlaylistState>::iterator pl;
4129
4130         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4131                 (*pl).playlist->thaw ();
4132                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4133         }
4134
4135         commit_reversible_command ();
4136 }
4137
4138 /** Cut, copy or clear selected regions.
4139  * @param op Operation (Cut, Copy or Clear)
4140  */
4141 void
4142 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4143 {
4144         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4145            a map when we want ordered access to both elements. i think.
4146         */
4147
4148         vector<PlaylistMapping> pmap;
4149
4150         nframes64_t first_position = max_frames;
4151
4152         set<PlaylistState, lt_playlist> freezelist;
4153         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4154
4155         /* get ordering correct before we cut/copy */
4156
4157         rs.sort_by_position_and_track ();
4158
4159         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4160
4161                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4162
4163                 if (op == Cut || op == Clear) {
4164                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4165
4166                         if (pl) {
4167                                 set<PlaylistState, lt_playlist>::iterator fl;
4168
4169                                 //only take state if this is a new playlist.
4170                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4171                                         if ((*fl).playlist == pl) {
4172                                                 break;
4173                                         }
4174                                 }
4175
4176                                 if (fl == freezelist.end()) {
4177                                         PlaylistState before;
4178                                         before.playlist = pl;
4179                                         before.before = &pl->get_state();
4180                                         pl->freeze ();
4181                                         insert_result = freezelist.insert (before);
4182                                 }
4183                         }
4184                 }
4185
4186                 TimeAxisView* tv = &(*x)->get_trackview();
4187                 vector<PlaylistMapping>::iterator z;
4188
4189                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4190                         if ((*z).tv == tv) {
4191                                 break;
4192                         }
4193                 }
4194
4195                 if (z == pmap.end()) {
4196                         pmap.push_back (PlaylistMapping (tv));
4197                 }
4198         }
4199
4200         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4201
4202                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4203
4204                 if (!pl) {
4205                         /* impossible, but this handles it for the future */
4206                         continue;
4207                 }
4208
4209                 TimeAxisView& tv = (*x)->get_trackview();
4210                 boost::shared_ptr<Playlist> npl;
4211                 RegionSelection::iterator tmp;
4212
4213                 tmp = x;
4214                 ++tmp;
4215
4216                 vector<PlaylistMapping>::iterator z;
4217
4218                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4219                         if ((*z).tv == &tv) {
4220                                 break;
4221                         }
4222                 }
4223
4224                 assert (z != pmap.end());
4225
4226                 if (!(*z).pl) {
4227                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4228                         npl->freeze();
4229                         (*z).pl = npl;
4230                 } else {
4231                         npl = (*z).pl;
4232                 }
4233
4234                 boost::shared_ptr<Region> r = (*x)->region();
4235                 boost::shared_ptr<Region> _xx;
4236
4237                 assert (r != 0);
4238
4239                 switch (op) {
4240                 case Cut:
4241                         _xx = RegionFactory::create (r);
4242                         npl->add_region (_xx, r->position() - first_position);
4243                         pl->remove_region (r);
4244                         break;
4245
4246                 case Copy:
4247                         /* copy region before adding, so we're not putting same object into two different playlists */
4248                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4249                         break;
4250
4251                 case Clear:
4252                         pl->remove_region (r);
4253                         break;
4254                 }
4255
4256                 x = tmp;
4257         }
4258
4259         list<boost::shared_ptr<Playlist> > foo;
4260
4261         /* the pmap is in the same order as the tracks in which selected regions occured */
4262
4263         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4264                 (*i).pl->thaw();
4265                 foo.push_back ((*i).pl);
4266         }
4267
4268
4269         if (!foo.empty()) {
4270                 cut_buffer->set (foo);
4271         }
4272
4273         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4274                 (*pl).playlist->thaw ();
4275                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4276         }
4277 }
4278
4279 void
4280 Editor::cut_copy_ranges (CutCopyOp op)
4281 {
4282         TrackSelection* ts;
4283         TrackSelection entered;
4284
4285         if (selection->tracks.empty()) {
4286                 if (!entered_track) {
4287                         return;
4288                 }
4289                 entered.push_back (entered_track);
4290                 ts = &entered;
4291         } else {
4292                 ts = &selection->tracks;
4293         }
4294
4295         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4296                 (*i)->cut_copy_clear (*selection, op);
4297         }
4298 }
4299
4300 void
4301 Editor::paste (float times)
4302 {
4303         paste_internal (get_preferred_edit_position(), times);
4304 }
4305
4306 void
4307 Editor::mouse_paste ()
4308 {
4309         nframes64_t where;
4310         bool ignored;
4311
4312         if (!mouse_frame (where, ignored)) {
4313                 return;
4314         }
4315
4316         snap_to (where);
4317         paste_internal (where, 1);
4318 }
4319
4320 void
4321 Editor::paste_internal (nframes64_t position, float times)
4322 {
4323         bool commit = false;
4324
4325         if (internal_editing()) {
4326                 if (cut_buffer->midi_notes.empty()) {
4327                         return;
4328                 }
4329         } else {
4330                 if (cut_buffer->empty()) {
4331                         return;
4332                 }
4333         }
4334
4335         if (position == max_frames) {
4336                 position = get_preferred_edit_position();
4337         }
4338
4339         begin_reversible_command (_("paste"));
4340
4341         TrackSelection ts;
4342         TrackSelection::iterator i;
4343         size_t nth;
4344
4345         /* get everything in the correct order */
4346
4347         if (!selection->tracks.empty()) {
4348                 sort_track_selection ();
4349                 ts = selection->tracks;
4350         } else if (entered_track) {
4351                 ts.push_back (entered_track);
4352         }
4353
4354         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4355
4356                 /* undo/redo is handled by individual tracks/regions */
4357
4358                 if (internal_editing()) {
4359
4360                         RegionSelection rs;
4361                         RegionSelection::iterator r;
4362                         MidiNoteSelection::iterator cb;
4363
4364                         get_regions_at (rs, position, ts);
4365
4366                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4367                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4368                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4369                                 if (mrv) {
4370                                         mrv->paste (position, times, **cb);
4371                                         ++cb;
4372                                 }
4373                         }
4374
4375                 } else {
4376
4377                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4378                                 commit = true;
4379                         }
4380                 }
4381         }
4382
4383         if (commit) {
4384                 commit_reversible_command ();
4385         }
4386 }
4387
4388 void
4389 Editor::paste_named_selection (float times)
4390 {
4391         TrackSelection::iterator t;
4392
4393         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4394
4395         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4396                 return;
4397         }
4398
4399         TreeModel::iterator i = selected->get_selected();
4400         NamedSelection* ns = (*i)[named_selection_columns.selection];
4401
4402         list<boost::shared_ptr<Playlist> >::iterator chunk;
4403         list<boost::shared_ptr<Playlist> >::iterator tmp;
4404
4405         chunk = ns->playlists.begin();
4406
4407         begin_reversible_command (_("paste chunk"));
4408
4409         sort_track_selection ();
4410
4411         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4412
4413                 RouteTimeAxisView* rtv;
4414                 boost::shared_ptr<Playlist> pl;
4415                 boost::shared_ptr<AudioPlaylist> apl;
4416
4417                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*t)) == 0) {
4418                         continue;
4419                 }
4420
4421                 if ((pl = rtv->playlist()) == 0) {
4422                         continue;
4423                 }
4424
4425                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4426                         continue;
4427                 }
4428
4429                 tmp = chunk;
4430                 ++tmp;
4431
4432                 XMLNode &before = apl->get_state();
4433                 apl->paste (*chunk, get_preferred_edit_position(), times);
4434                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4435
4436                 if (tmp != ns->playlists.end()) {
4437                         chunk = tmp;
4438                 }
4439         }
4440
4441         commit_reversible_command();
4442 }
4443
4444 void
4445 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4446 {
4447         boost::shared_ptr<Playlist> playlist;
4448         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4449         RegionSelection foo;
4450
4451         begin_reversible_command (_("duplicate region"));
4452
4453         selection->clear_regions ();
4454
4455         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4456
4457                 boost::shared_ptr<Region> r ((*i)->region());
4458
4459                 TimeAxisView& tv = (*i)->get_time_axis_view();
4460                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4461                 latest_regionviews.clear ();
4462                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4463
4464                 playlist = (*i)->region()->playlist();
4465                 XMLNode &before = playlist->get_state();
4466                 playlist->duplicate (r, r->last_frame(), times);
4467                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4468
4469                 c.disconnect ();
4470
4471                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4472         }
4473
4474         commit_reversible_command ();
4475
4476         if (!foo.empty()) {
4477                 selection->set (foo);
4478         }
4479 }
4480
4481 void
4482 Editor::duplicate_selection (float times)
4483 {
4484         if (selection->time.empty() || selection->tracks.empty()) {
4485                 return;
4486         }
4487
4488         boost::shared_ptr<Playlist> playlist;
4489         vector<boost::shared_ptr<Region> > new_regions;
4490         vector<boost::shared_ptr<Region> >::iterator ri;
4491
4492         create_region_from_selection (new_regions);
4493
4494         if (new_regions.empty()) {
4495                 return;
4496         }
4497
4498         begin_reversible_command (_("duplicate selection"));
4499
4500         ri = new_regions.begin();
4501
4502         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4503                 if ((playlist = (*i)->playlist()) == 0) {
4504                         continue;
4505                 }
4506                 XMLNode &before = playlist->get_state();
4507                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4508                 XMLNode &after = playlist->get_state();
4509                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4510
4511                 ++ri;
4512                 if (ri == new_regions.end()) {
4513                         --ri;
4514                 }
4515         }
4516
4517         commit_reversible_command ();
4518 }
4519
4520 void
4521 Editor::reset_point_selection ()
4522 {
4523         /* reset all selected points to the relevant default value */
4524
4525         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4526
4527                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4528
4529                 if (atv) {
4530                         atv->reset_objects (selection->points);
4531                 }
4532         }
4533 }
4534
4535 void
4536 Editor::center_playhead ()
4537 {
4538         float page = _canvas_width * frames_per_unit;
4539         center_screen_internal (playhead_cursor->current_frame, page);
4540 }
4541
4542 void
4543 Editor::center_edit_point ()
4544 {
4545         float page = _canvas_width * frames_per_unit;
4546         center_screen_internal (get_preferred_edit_position(), page);
4547 }
4548
4549 void
4550 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4551 {
4552         begin_reversible_command (_("clear playlist"));
4553         XMLNode &before = playlist->get_state();
4554         playlist->clear ();
4555         XMLNode &after = playlist->get_state();
4556         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4557         commit_reversible_command ();
4558 }
4559
4560 void
4561 Editor::nudge_track (bool use_edit, bool forwards)
4562 {
4563         boost::shared_ptr<Playlist> playlist;
4564         nframes64_t distance;
4565         nframes64_t next_distance;
4566         nframes64_t start;
4567
4568         if (use_edit) {
4569                 start = get_preferred_edit_position();
4570         } else {
4571                 start = 0;
4572         }
4573
4574         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4575                 return;
4576         }
4577
4578         if (selection->tracks.empty()) {
4579                 return;
4580         }
4581
4582         begin_reversible_command (_("nudge track"));
4583
4584         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4585
4586                 if ((playlist = (*i)->playlist()) == 0) {
4587                         continue;
4588                 }
4589
4590                 XMLNode &before = playlist->get_state();
4591                 playlist->nudge_after (start, distance, forwards);
4592                 XMLNode &after = playlist->get_state();
4593                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4594         }
4595
4596         commit_reversible_command ();
4597 }
4598
4599 void
4600 Editor::remove_last_capture ()
4601 {
4602         vector<string> choices;
4603         string prompt;
4604
4605         if (!session) {
4606                 return;
4607         }
4608
4609         if (Config->get_verify_remove_last_capture()) {
4610                 prompt  = _("Do you really want to destroy the last capture?"
4611                             "\n(This is destructive and cannot be undone)");
4612
4613                 choices.push_back (_("No, do nothing."));
4614                 choices.push_back (_("Yes, destroy it."));
4615
4616                 Gtkmm2ext::Choice prompter (prompt, choices);
4617
4618                 if (prompter.run () == 1) {
4619                         session->remove_last_capture ();
4620                 }
4621
4622         } else {
4623                 session->remove_last_capture();
4624         }
4625 }
4626
4627 void
4628 Editor::normalize_region ()
4629 {
4630         if (!session) {
4631                 return;
4632         }
4633
4634         RegionSelection rs;
4635         get_regions_for_action (rs);
4636
4637         if (rs.empty()) {
4638                 return;
4639         }
4640
4641         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4642         HBox hbox;
4643         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4644         SpinButton spin (0.2, 2);
4645         spin.set_range (-112, 0);
4646         spin.set_increments (0.1, 1);
4647         spin.set_value (0);
4648         hbox.pack_start (spin);
4649         spin.set_value (_last_normalization_value);
4650         hbox.pack_start (*manage (new Label (_("dbFS"))));
4651         hbox.show_all ();
4652         dialog.get_vbox()->pack_start (hbox);
4653         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4654         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4655
4656         if (dialog.run () == RESPONSE_CANCEL) {
4657                 return;
4658         }
4659
4660         begin_reversible_command (_("normalize"));
4661
4662         track_canvas->get_window()->set_cursor (*wait_cursor);
4663         gdk_flush ();
4664
4665         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4666                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4667                 if (!arv)
4668                         continue;
4669                 XMLNode &before = arv->region()->get_state();
4670                 arv->audio_region()->normalize_to (spin.get_value());
4671                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4672         }
4673
4674         commit_reversible_command ();
4675         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4676
4677         _last_normalization_value = spin.get_value ();
4678 }
4679
4680
4681 void
4682 Editor::denormalize_region ()
4683 {
4684         if (!session) {
4685                 return;
4686         }
4687
4688         RegionSelection rs;
4689
4690         get_regions_for_action (rs);
4691
4692         if (rs.empty()) {
4693                 return;
4694         }
4695
4696         begin_reversible_command ("denormalize");
4697
4698         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4699                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4700                 if (!arv)
4701                         continue;
4702                 XMLNode &before = arv->region()->get_state();
4703                 arv->audio_region()->set_scale_amplitude (1.0f);
4704                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4705         }
4706
4707         commit_reversible_command ();
4708 }
4709
4710 void
4711 Editor::adjust_region_scale_amplitude (bool up)
4712 {
4713         if (!session) {
4714                 return;
4715         }
4716
4717         RegionSelection rs;
4718
4719         get_regions_for_action (rs);
4720
4721         if (rs.empty()) {
4722                 return;
4723         }
4724
4725         begin_reversible_command ("denormalize");
4726
4727         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4728                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4729                 if (!arv)
4730                         continue;
4731                 XMLNode &before = arv->region()->get_state();
4732
4733                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4734
4735                 if (up) {
4736                         fraction += 0.05;
4737                         fraction = min (fraction, 1.0);
4738                 } else {
4739                         fraction -= 0.05;
4740                         fraction = max (fraction, 0.0);
4741                 }
4742
4743                 if (!up && fraction <= 0) {
4744                         continue;
4745                 }
4746
4747                 fraction = slider_position_to_gain (fraction);
4748
4749                 if (up && fraction >= 2.0) {
4750                         continue;
4751                 }
4752
4753                 arv->audio_region()->set_scale_amplitude (fraction);
4754                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4755         }
4756
4757         commit_reversible_command ();
4758 }
4759
4760
4761 void
4762 Editor::reverse_region ()
4763 {
4764         if (!session) {
4765                 return;
4766         }
4767
4768         Reverse rev (*session);
4769         apply_filter (rev, _("reverse regions"));
4770 }
4771
4772 void
4773 Editor::strip_region_silence ()
4774 {
4775         if (!session) {
4776                 return;
4777         }
4778
4779         RegionSelection rs;
4780         get_regions_for_action (rs);
4781
4782         if (rs.empty()) {
4783                 return;
4784         }
4785
4786         std::list<boost::shared_ptr<AudioRegion> > ar;
4787
4788         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4789                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4790                 if (arv) {
4791                         ar.push_back (arv->audio_region ());
4792                 }
4793         }
4794
4795         StripSilenceDialog d (ar);
4796         int const r = d.run ();
4797
4798         if (r == Gtk::RESPONSE_OK) {
4799                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4800                 apply_filter (s, _("strip silence"));
4801         }
4802 }
4803
4804
4805 void
4806 Editor::quantize_region ()
4807 {
4808         if (!session) {
4809                 return;
4810         }
4811
4812         // FIXME: varying meter?
4813         Quantize quant (*session, snap_length_beats(0));
4814         apply_filter (quant, _("quantize regions"));
4815 }
4816
4817 void
4818 Editor::apply_filter (Filter& filter, string command)
4819 {
4820         RegionSelection rs;
4821
4822         get_regions_for_action (rs);
4823
4824         if (rs.empty()) {
4825                 return;
4826         }
4827
4828         begin_reversible_command (command);
4829
4830         track_canvas->get_window()->set_cursor (*wait_cursor);
4831         gdk_flush ();
4832
4833         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4834                 RegionSelection::iterator tmp = r;
4835                 ++tmp;
4836
4837                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4838                 if (mrv) {
4839                         if (mrv->midi_region()->apply(filter) == 0) {
4840                                 mrv->redisplay_model();
4841                         }
4842                 }
4843
4844                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4845                 if (arv) {
4846                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4847
4848                         if (arv->audio_region()->apply (filter) == 0) {
4849
4850                                 XMLNode &before = playlist->get_state();
4851
4852                                 if (filter.results.empty ()) {
4853
4854                                         /* no regions returned; remove the old one */
4855                                         playlist->remove_region (arv->region ());
4856
4857                                 } else {
4858
4859                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4860
4861                                         /* first region replaces the old one */
4862                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4863                                         ++res;
4864
4865                                         /* add the rest */
4866                                         while (res != filter.results.end()) {
4867                                                 playlist->add_region (*res, (*res)->position());
4868                                                 ++res;
4869                                         }
4870
4871                                 }
4872
4873                                 XMLNode &after = playlist->get_state();
4874                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4875                         } else {
4876                                 goto out;
4877                         }
4878                 }
4879
4880                 r = tmp;
4881         }
4882
4883         commit_reversible_command ();
4884         rs.clear ();
4885
4886   out:
4887         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4888 }
4889
4890 void
4891 Editor::region_selection_op (void (Region::*pmf)(void))
4892 {
4893         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4894                 Region* region = (*i)->region().get();
4895                 (region->*pmf)();
4896         }
4897 }
4898
4899
4900 void
4901 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4902 {
4903         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4904                 Region* region = (*i)->region().get();
4905                 (region->*pmf)(arg);
4906         }
4907 }
4908
4909 void
4910 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4911 {
4912         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4913                 Region* region = (*i)->region().get();
4914                 (region->*pmf)(yn);
4915         }
4916 }
4917
4918 void
4919 Editor::external_edit_region ()
4920 {
4921         /* more to come */
4922 }
4923
4924 void
4925 Editor::brush (nframes64_t pos)
4926 {
4927         RegionSelection sel;
4928         RegionSelection rs;
4929
4930         get_regions_for_action (rs);
4931
4932         snap_to (pos);
4933
4934         if (rs.empty()) {
4935                 return;
4936         }
4937
4938         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4939                 mouse_brush_insert_region ((*i), pos);
4940         }
4941 }
4942
4943 void
4944 Editor::reset_region_gain_envelopes ()
4945 {
4946         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4947
4948         if (!session || rs.empty()) {
4949                 return;
4950         }
4951
4952         session->begin_reversible_command (_("reset region gain"));
4953
4954         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4955                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4956                 if (arv) {
4957                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4958                         XMLNode& before (alist->get_state());
4959
4960                         arv->audio_region()->set_default_envelope ();
4961                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4962                 }
4963         }
4964
4965         session->commit_reversible_command ();
4966 }
4967
4968 void
4969 Editor::toggle_gain_envelope_visibility ()
4970 {
4971         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4972
4973         if (!session || rs.empty()) {
4974                 return;
4975         }
4976
4977         session->begin_reversible_command (_("region gain envelope visible"));
4978
4979         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4980                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4981                 if (arv) {
4982                         XMLNode &before = arv->region()->get_state ();
4983                         arv->set_envelope_visible (!arv->envelope_visible());
4984                         XMLNode &after = arv->region()->get_state ();
4985                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4986                 }
4987         }
4988
4989         session->commit_reversible_command ();
4990 }
4991
4992 void
4993 Editor::toggle_gain_envelope_active ()
4994 {
4995         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4996
4997         if (!session || rs.empty()) {
4998                 return;
4999         }
5000
5001         session->begin_reversible_command (_("region gain envelope active"));
5002
5003         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5004                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5005                 if (arv) {
5006                         XMLNode &before = arv->region()->get_state ();
5007                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5008                         XMLNode &after = arv->region()->get_state ();
5009                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
5010                 }
5011         }
5012
5013         session->commit_reversible_command ();
5014 }
5015
5016 void
5017 Editor::toggle_region_lock ()
5018 {
5019         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5020
5021         if (!session || rs.empty()) {
5022                 return;
5023         }
5024
5025         session->begin_reversible_command (_("region lock"));
5026
5027         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5028                 XMLNode &before = (*i)->region()->get_state ();
5029                 (*i)->region()->set_locked (!(*i)->region()->locked());
5030                 XMLNode &after = (*i)->region()->get_state ();
5031                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5032         }
5033
5034         session->commit_reversible_command ();
5035 }
5036
5037 void
5038 Editor::set_region_lock_style (Region::PositionLockStyle ps)
5039 {
5040         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5041
5042         if (!session || rs.empty()) {
5043                 return;
5044         }
5045
5046         session->begin_reversible_command (_("region lock style"));
5047
5048         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5049                 XMLNode &before = (*i)->region()->get_state ();
5050                 (*i)->region()->set_position_lock_style (ps);
5051                 XMLNode &after = (*i)->region()->get_state ();
5052                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5053         }
5054
5055         session->commit_reversible_command ();
5056 }
5057
5058
5059 void
5060 Editor::toggle_region_mute ()
5061 {
5062         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5063
5064         if (!session || rs.empty()) {
5065                 return;
5066         }
5067
5068         session->begin_reversible_command (_("region mute"));
5069
5070         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5071                 XMLNode &before = (*i)->region()->get_state ();
5072                 (*i)->region()->set_muted (!(*i)->region()->muted());
5073                 XMLNode &after = (*i)->region()->get_state ();
5074                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5075         }
5076
5077         session->commit_reversible_command ();
5078 }
5079
5080 void
5081 Editor::toggle_region_opaque ()
5082 {
5083         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5084
5085         if (!session || rs.empty()) {
5086                 return;
5087         }
5088
5089         session->begin_reversible_command (_("region opacity"));
5090
5091         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5092                 XMLNode &before = (*i)->region()->get_state ();
5093                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5094                 XMLNode &after = (*i)->region()->get_state ();
5095                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5096         }
5097
5098         session->commit_reversible_command ();
5099 }
5100
5101 void
5102 Editor::toggle_record_enable ()
5103 {
5104         bool new_state = false;
5105         bool first = true;
5106         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5107                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5108                 if (!rtav)
5109                         continue;
5110                 if (!rtav->is_track())
5111                         continue;
5112
5113                 if (first) {
5114                         new_state = !rtav->track()->record_enabled();
5115                         first = false;
5116                 }
5117
5118                 rtav->track()->set_record_enable(new_state, this);
5119         }
5120 }
5121
5122
5123 void
5124 Editor::set_fade_length (bool in)
5125 {
5126         RegionSelection rs;
5127
5128         get_regions_for_action (rs, true);
5129
5130         if (rs.empty()) {
5131                 return;
5132         }
5133
5134         /* we need a region to measure the offset from the start */
5135
5136         RegionView* rv = rs.front ();
5137
5138         nframes64_t pos = get_preferred_edit_position();
5139         nframes64_t len;
5140         char* cmd;
5141
5142         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5143                 /* edit point is outside the relevant region */
5144                 return;
5145         }
5146
5147         if (in) {
5148                 if (pos <= rv->region()->position()) {
5149                         /* can't do it */
5150                         return;
5151                 }
5152                 len = pos - rv->region()->position();
5153                 cmd = _("set fade in length");
5154         } else {
5155                 if (pos >= rv->region()->last_frame()) {
5156                         /* can't do it */
5157                         return;
5158                 }
5159                 len = rv->region()->last_frame() - pos;
5160                 cmd = _("set fade out length");
5161         }
5162
5163         begin_reversible_command (cmd);
5164
5165         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5166                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5167
5168                 if (!tmp) {
5169                         return;
5170                 }
5171
5172                 boost::shared_ptr<AutomationList> alist;
5173                 if (in) {
5174                         alist = tmp->audio_region()->fade_in();
5175                 } else {
5176                         alist = tmp->audio_region()->fade_out();
5177                 }
5178
5179                 XMLNode &before = alist->get_state();
5180
5181                 if (in) {
5182                         tmp->audio_region()->set_fade_in_length (len);
5183                         tmp->audio_region()->set_fade_in_active (true);
5184                 } else {
5185                         tmp->audio_region()->set_fade_out_length (len);
5186                         tmp->audio_region()->set_fade_out_active (true);
5187                 }
5188
5189                 XMLNode &after = alist->get_state();
5190                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5191         }
5192
5193         commit_reversible_command ();
5194 }
5195
5196 void
5197 Editor::toggle_fade_active (bool in)
5198 {
5199         RegionSelection rs;
5200
5201         get_regions_for_action (rs);
5202
5203         if (rs.empty()) {
5204                 return;
5205         }
5206
5207         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5208         bool have_switch = false;
5209         bool yn = false;
5210
5211         begin_reversible_command (cmd);
5212
5213         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5214                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5215
5216                 if (!tmp) {
5217                         return;
5218                 }
5219
5220                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5221
5222                 /* make the behaviour consistent across all regions */
5223
5224                 if (!have_switch) {
5225                         if (in) {
5226                                 yn = region->fade_in_active();
5227                         } else {
5228                                 yn = region->fade_out_active();
5229                         }
5230                         have_switch = true;
5231                 }
5232
5233                 XMLNode &before = region->get_state();
5234                 if (in) {
5235                         region->set_fade_in_active (!yn);
5236                 } else {
5237                         region->set_fade_out_active (!yn);
5238                 }
5239                 XMLNode &after = region->get_state();
5240                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5241         }
5242
5243         commit_reversible_command ();
5244 }
5245
5246 void
5247 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5248 {
5249         RegionSelection rs;
5250
5251         get_regions_for_action (rs);
5252
5253         if (rs.empty()) {
5254                 return;
5255         }
5256
5257         begin_reversible_command (_("set fade in shape"));
5258
5259         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5260                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5261
5262                 if (!tmp) {
5263                         return;
5264                 }
5265
5266                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5267                 XMLNode &before = alist->get_state();
5268
5269                 tmp->audio_region()->set_fade_in_shape (shape);
5270
5271                 XMLNode &after = alist->get_state();
5272                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5273         }
5274
5275         commit_reversible_command ();
5276
5277 }
5278
5279 void
5280 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5281 {
5282         RegionSelection rs;
5283
5284         get_regions_for_action (rs);
5285
5286         if (rs.empty()) {
5287                 return;
5288         }
5289
5290         begin_reversible_command (_("set fade out shape"));
5291
5292         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5293                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5294
5295                 if (!tmp) {
5296                         return;
5297                 }
5298
5299                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5300                 XMLNode &before = alist->get_state();
5301
5302                 tmp->audio_region()->set_fade_out_shape (shape);
5303
5304                 XMLNode &after = alist->get_state();
5305                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5306         }
5307
5308         commit_reversible_command ();
5309 }
5310
5311 void
5312 Editor::set_fade_in_active (bool yn)
5313 {
5314         RegionSelection rs;
5315
5316         get_regions_for_action (rs);
5317
5318         if (rs.empty()) {
5319                 return;
5320         }
5321
5322         begin_reversible_command (_("set fade in active"));
5323
5324         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5325                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5326
5327                 if (!tmp) {
5328                         return;
5329                 }
5330
5331
5332                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5333
5334                 XMLNode &before = ar->get_state();
5335
5336                 ar->set_fade_in_active (yn);
5337
5338                 XMLNode &after = ar->get_state();
5339                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5340         }
5341
5342         commit_reversible_command ();
5343 }
5344
5345 void
5346 Editor::set_fade_out_active (bool yn)
5347 {
5348         RegionSelection rs;
5349
5350         get_regions_for_action (rs);
5351
5352         if (rs.empty()) {
5353                 return;
5354         }
5355
5356         begin_reversible_command (_("set fade out active"));
5357
5358         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5359                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5360
5361                 if (!tmp) {
5362                         return;
5363                 }
5364
5365                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5366
5367                 XMLNode &before = ar->get_state();
5368
5369                 ar->set_fade_out_active (yn);
5370
5371                 XMLNode &after = ar->get_state();
5372                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5373         }
5374
5375         commit_reversible_command ();
5376 }
5377
5378 void
5379 Editor::toggle_selected_region_fades (int dir)
5380 {
5381         RegionSelection rs;
5382         RegionSelection::iterator i;
5383         boost::shared_ptr<AudioRegion> ar;
5384         bool yn;
5385
5386         get_regions_for_action (rs);
5387
5388         if (rs.empty()) {
5389                 return;
5390         }
5391
5392         for (i = rs.begin(); i != rs.end(); ++i) {
5393                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5394                         if (dir == -1) {
5395                                 yn = ar->fade_out_active ();
5396                         } else {
5397                                 yn = ar->fade_in_active ();
5398                         }
5399                         break;
5400                 }
5401         }
5402
5403         if (i == rs.end()) {
5404                 return;
5405         }
5406
5407         /* XXX should this undo-able? */
5408
5409         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5410                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5411                         continue;
5412                 }
5413                 if (dir == 1 || dir == 0) {
5414                         ar->set_fade_in_active (!yn);
5415                 }
5416
5417                 if (dir == -1 || dir == 0) {
5418                         ar->set_fade_out_active (!yn);
5419                 }
5420         }
5421 }
5422
5423
5424 /** Update region fade visibility after its configuration has been changed */
5425 void
5426 Editor::update_region_fade_visibility ()
5427 {
5428         bool _fade_visibility = session->config.get_show_region_fades ();
5429
5430         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5431                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5432                 if (v) {
5433                         if (_fade_visibility) {
5434                                 v->audio_view()->show_all_fades ();
5435                         } else {
5436                                 v->audio_view()->hide_all_fades ();
5437                         }
5438                 }
5439         }
5440 }
5441
5442 /** Update crossfade visibility after its configuration has been changed */
5443 void
5444 Editor::update_xfade_visibility ()
5445 {
5446         _xfade_visibility = session->config.get_xfades_visible ();
5447
5448         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5449                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5450                 if (v) {
5451                         if (_xfade_visibility) {
5452                                 v->show_all_xfades ();
5453                         } else {
5454                                 v->hide_all_xfades ();
5455                         }
5456                 }
5457         }
5458 }
5459
5460 void
5461 Editor::set_edit_point ()
5462 {
5463         nframes64_t where;
5464         bool ignored;
5465
5466         if (!mouse_frame (where, ignored)) {
5467                 return;
5468         }
5469
5470         snap_to (where);
5471
5472         if (selection->markers.empty()) {
5473
5474                 mouse_add_new_marker (where);
5475
5476         } else {
5477                 bool ignored;
5478
5479                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5480
5481                 if (loc) {
5482                         loc->move_to (where);
5483                 }
5484         }
5485 }
5486
5487 void
5488 Editor::set_playhead_cursor ()
5489 {
5490         if (entered_marker) {
5491                 session->request_locate (entered_marker->position(), session->transport_rolling());
5492         } else {
5493                 nframes64_t where;
5494                 bool ignored;
5495
5496                 if (!mouse_frame (where, ignored)) {
5497                         return;
5498                 }
5499
5500                 snap_to (where);
5501
5502                 if (session) {
5503                         session->request_locate (where, session->transport_rolling());
5504                 }
5505         }
5506 }
5507
5508 void
5509 Editor::split ()
5510 {
5511         RegionSelection rs;
5512
5513         get_regions_for_action (rs, true);
5514
5515         nframes64_t where = get_preferred_edit_position();
5516
5517         if (rs.empty()) {
5518                 return;
5519         }
5520
5521         split_regions_at (where, rs);
5522 }
5523
5524 void
5525 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5526 {
5527         if (entered_track && mouse_mode == MouseObject) {
5528                 if (!selection->tracks.empty()) {
5529                         if (!selection->selected (entered_track)) {
5530                                 selection->add (entered_track);
5531                         }
5532                 } else {
5533                         /* there is no selection, but this operation requires/prefers selected objects */
5534
5535                         if (op_really_wants_one_track_if_none_are_selected) {
5536                                 selection->set (entered_track);
5537                         }
5538                 }
5539         }
5540 }
5541
5542 struct EditorOrderRouteSorter {
5543     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5544             /* use of ">" forces the correct sort order */
5545             return a->order_key ("editor") < b->order_key ("editor");
5546     }
5547 };
5548
5549 void
5550 Editor::select_next_route()
5551 {
5552         if (selection->tracks.empty()) {
5553                 selection->set (track_views.front());
5554                 return;
5555         }
5556
5557         TimeAxisView* current = selection->tracks.front();
5558
5559         RouteUI *rui;
5560         do {
5561                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5562                         if (*i == current) {
5563                                 ++i;
5564                                 if (i != track_views.end()) {
5565                                         current = (*i);
5566                                 } else {
5567                                         current = (*(track_views.begin()));
5568                                         //selection->set (*(track_views.begin()));
5569                                 }
5570                                 break;
5571                         }
5572                 }
5573                 rui = dynamic_cast<RouteUI *>(current);
5574         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5575
5576         selection->set(current);
5577
5578         ensure_track_visible(current);
5579 }
5580
5581 void
5582 Editor::select_prev_route()
5583 {
5584         if (selection->tracks.empty()) {
5585                 selection->set (track_views.front());
5586                 return;
5587         }
5588
5589         TimeAxisView* current = selection->tracks.front();
5590
5591         RouteUI *rui;
5592         do {
5593                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5594                         if (*i == current) {
5595                                 ++i;
5596                                 if (i != track_views.rend()) {
5597                                         current = (*i);
5598                                 } else {
5599                                         current = *(track_views.rbegin());
5600                                 }
5601                                 break;
5602                         }
5603                 }
5604                 rui = dynamic_cast<RouteUI *>(current);
5605         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5606
5607         selection->set (current);
5608
5609         ensure_track_visible(current);
5610 }
5611
5612 void
5613 Editor::ensure_track_visible(TimeAxisView *track)
5614 {
5615         if (track->hidden())
5616                 return;
5617
5618         double const current_view_min_y = vertical_adjustment.get_value();
5619         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5620
5621         double const track_min_y = track->y_position ();
5622         double const track_max_y = track->y_position () + track->effective_height ();
5623
5624         if (track_min_y >= current_view_min_y &&
5625             track_max_y <= current_view_max_y) {
5626                 return;
5627         }
5628
5629         double new_value;
5630
5631         if (track_min_y < current_view_min_y) {
5632                 // Track is above the current view
5633                 new_value = track_min_y;
5634         } else {
5635                 // Track is below the current view
5636                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5637         }
5638
5639         vertical_adjustment.set_value(new_value);
5640 }
5641
5642 void
5643 Editor::set_loop_from_selection (bool play)
5644 {
5645         if (session == 0 || selection->time.empty()) {
5646                 return;
5647         }
5648
5649         nframes64_t start = selection->time[clicked_selection].start;
5650         nframes64_t end = selection->time[clicked_selection].end;
5651
5652         set_loop_range (start, end,  _("set loop range from selection"));
5653
5654         if (play) {
5655                 session->request_play_loop (true);
5656                 session->request_locate (start, true);
5657         }
5658 }
5659
5660 void
5661 Editor::set_loop_from_edit_range (bool play)
5662 {
5663         if (session == 0) {
5664                 return;
5665         }
5666
5667         nframes64_t start;
5668         nframes64_t end;
5669
5670         if (!get_edit_op_range (start, end)) {
5671                 return;
5672         }
5673
5674         set_loop_range (start, end,  _("set loop range from edit range"));
5675
5676         if (play) {
5677                 session->request_play_loop (true);
5678                 session->request_locate (start, true);
5679         }
5680 }
5681
5682 void
5683 Editor::set_loop_from_region (bool play)
5684 {
5685         nframes64_t start = max_frames;
5686         nframes64_t end = 0;
5687
5688         RegionSelection rs;
5689
5690         get_regions_for_action (rs);
5691
5692         if (rs.empty()) {
5693                 return;
5694         }
5695
5696         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5697                 if ((*i)->region()->position() < start) {
5698                         start = (*i)->region()->position();
5699                 }
5700                 if ((*i)->region()->last_frame() + 1 > end) {
5701                         end = (*i)->region()->last_frame() + 1;
5702                 }
5703         }
5704
5705         set_loop_range (start, end, _("set loop range from region"));
5706
5707         if (play) {
5708                 session->request_play_loop (true);
5709                 session->request_locate (start, true);
5710         }
5711 }
5712
5713 void
5714 Editor::set_punch_from_selection ()
5715 {
5716         if (session == 0 || selection->time.empty()) {
5717                 return;
5718         }
5719
5720         nframes64_t start = selection->time[clicked_selection].start;
5721         nframes64_t end = selection->time[clicked_selection].end;
5722
5723         set_punch_range (start, end,  _("set punch range from selection"));
5724 }
5725
5726 void
5727 Editor::set_punch_from_edit_range ()
5728 {
5729         if (session == 0) {
5730                 return;
5731         }
5732
5733         nframes64_t start;
5734         nframes64_t end;
5735
5736         if (!get_edit_op_range (start, end)) {
5737                 return;
5738         }
5739
5740         set_punch_range (start, end,  _("set punch range from edit range"));
5741 }
5742
5743 void
5744 Editor::set_punch_from_region ()
5745 {
5746         nframes64_t start = max_frames;
5747         nframes64_t end = 0;
5748
5749         RegionSelection rs;
5750
5751         get_regions_for_action (rs);
5752
5753         if (rs.empty()) {
5754                 return;
5755         }
5756
5757         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5758                 if ((*i)->region()->position() < start) {
5759                         start = (*i)->region()->position();
5760                 }
5761                 if ((*i)->region()->last_frame() + 1 > end) {
5762                         end = (*i)->region()->last_frame() + 1;
5763                 }
5764         }
5765
5766         set_punch_range (start, end, _("set punch range from region"));
5767 }
5768
5769 void
5770 Editor::pitch_shift_regions ()
5771 {
5772         RegionSelection rs;
5773
5774         get_regions_for_action (rs);
5775
5776         if (rs.empty()) {
5777                 return;
5778         }
5779
5780         pitch_shift (rs, 1.2);
5781 }
5782
5783 void
5784 Editor::use_region_as_bar ()
5785 {
5786         if (!session) {
5787                 return;
5788         }
5789
5790         RegionSelection rs;
5791
5792         get_regions_for_action (rs);
5793
5794         if (rs.empty()) {
5795                 return;
5796         }
5797
5798         RegionView* rv = rs.front();
5799
5800         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5801 }
5802
5803 void
5804 Editor::use_range_as_bar ()
5805 {
5806         nframes64_t start, end;
5807         if (get_edit_op_range (start, end)) {
5808                 define_one_bar (start, end);
5809         }
5810 }
5811
5812 void
5813 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5814 {
5815         nframes64_t length = end - start;
5816
5817         const Meter& m (session->tempo_map().meter_at (start));
5818
5819         /* length = 1 bar */
5820
5821         /* now we want frames per beat.
5822            we have frames per bar, and beats per bar, so ...
5823         */
5824
5825         double frames_per_beat = length / m.beats_per_bar();
5826
5827         /* beats per minute = */
5828
5829         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5830
5831         /* now decide whether to:
5832
5833             (a) set global tempo
5834             (b) add a new tempo marker
5835
5836         */
5837
5838         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5839
5840         bool do_global = false;
5841
5842         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5843
5844                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5845                    at the start, or create a new marker
5846                 */
5847
5848                 vector<string> options;
5849                 options.push_back (_("Cancel"));
5850                 options.push_back (_("Add new marker"));
5851                 options.push_back (_("Set global tempo"));
5852                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5853                           options);
5854                 c.set_default_response (2);
5855
5856                 switch (c.run()) {
5857                 case 0:
5858                         return;
5859
5860                 case 2:
5861                         do_global = true;
5862                         break;
5863
5864                 default:
5865                         do_global = false;
5866                 }
5867
5868         } else {
5869
5870                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5871                    if the marker is at the region starter, change it, otherwise add
5872                    a new tempo marker
5873                 */
5874         }
5875
5876         begin_reversible_command (_("set tempo from region"));
5877         XMLNode& before (session->tempo_map().get_state());
5878
5879         if (do_global) {
5880                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5881         } else if (t.frame() == start) {
5882                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5883         } else {
5884                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5885         }
5886
5887         XMLNode& after (session->tempo_map().get_state());
5888
5889         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5890         commit_reversible_command ();
5891 }
5892
5893 void
5894 Editor::split_region_at_transients ()
5895 {
5896         AnalysisFeatureList positions;
5897
5898         if (!session) {
5899                 return;
5900         }
5901
5902         RegionSelection rs;
5903
5904         get_regions_for_action (rs);
5905
5906         if (rs.empty()) {
5907                 return;
5908         }
5909
5910         session->begin_reversible_command (_("split regions"));
5911
5912         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5913
5914                 RegionSelection::iterator tmp;
5915
5916                 tmp = i;
5917                 ++tmp;
5918
5919                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5920
5921                 if (ar && (ar->get_transients (positions) == 0)) {
5922                         split_region_at_points ((*i)->region(), positions, true);
5923                         positions.clear ();
5924                 }
5925
5926                 i = tmp;
5927         }
5928
5929         session->commit_reversible_command ();
5930
5931 }
5932
5933 void
5934 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5935 {
5936         bool use_rhythmic_rodent = false;
5937
5938         boost::shared_ptr<Playlist> pl = r->playlist();
5939
5940         if (!pl) {
5941                 return;
5942         }
5943
5944         if (positions.empty()) {
5945                 return;
5946         }
5947
5948
5949         if (positions.size() > 20) {
5950                 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);
5951                 MessageDialog msg (msgstr,
5952                                    false,
5953                                    Gtk::MESSAGE_INFO,
5954                                    Gtk::BUTTONS_OK_CANCEL);
5955
5956                 if (can_ferret) {
5957                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5958                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5959                 } else {
5960                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5961                 }
5962
5963                 msg.set_title (_("Excessive split?"));
5964                 msg.present ();
5965
5966                 int response = msg.run();
5967                 msg.hide ();
5968                 switch (response) {
5969                 case RESPONSE_OK:
5970                         break;
5971                 case RESPONSE_APPLY:
5972                         use_rhythmic_rodent = true;
5973                         break;
5974                 default:
5975                         return;
5976                 }
5977         }
5978
5979         if (use_rhythmic_rodent) {
5980                 show_rhythm_ferret ();
5981                 return;
5982         }
5983
5984         AnalysisFeatureList::const_iterator x;
5985
5986         nframes64_t pos = r->position();
5987
5988         XMLNode& before (pl->get_state());
5989
5990         x = positions.begin();
5991
5992         while (x != positions.end()) {
5993                 if ((*x) > pos) {
5994                         break;
5995                 }
5996                 ++x;
5997         }
5998
5999         if (x == positions.end()) {
6000                 return;
6001         }
6002
6003         pl->freeze ();
6004         pl->remove_region (r);
6005
6006         while (x != positions.end()) {
6007
6008                 /* file start = original start + how far we from the initial position ?
6009                  */
6010
6011                 nframes64_t file_start = r->start() + (pos - r->position());
6012
6013                 /* length = next position - current position
6014                  */
6015
6016                 nframes64_t len = (*x) - pos;
6017
6018                 /* XXX we do we really want to allow even single-sample regions?
6019                    shouldn't we have some kind of lower limit on region size?
6020                 */
6021
6022                 if (len <= 0) {
6023                         break;
6024                 }
6025
6026                 string new_name;
6027
6028                 if (session->region_name (new_name, r->name())) {
6029                         break;
6030                 }
6031
6032                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6033
6034                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
6035                 pl->add_region (nr, pos);
6036
6037                 pos += len;
6038                 ++x;
6039
6040                 if (*x > r->last_frame()) {
6041
6042                         /* add final fragment */
6043
6044                         file_start = r->start() + (pos - r->position());
6045                         len = r->last_frame() - pos;
6046
6047                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
6048                         pl->add_region (nr, pos);
6049
6050                         break;
6051                 }
6052         }
6053
6054         pl->thaw ();
6055
6056         XMLNode& after (pl->get_state());
6057
6058         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6059 }
6060
6061 void
6062 Editor::tab_to_transient (bool forward)
6063 {
6064         AnalysisFeatureList positions;
6065
6066         if (!session) {
6067                 return;
6068         }
6069
6070         nframes64_t pos = session->audible_frame ();
6071
6072         if (!selection->tracks.empty()) {
6073
6074                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6075
6076                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6077
6078                         if (rtv) {
6079                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6080                                 if (ds) {
6081                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6082                                         if (pl) {
6083                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6084
6085                                                 if (result >= 0) {
6086                                                         positions.push_back (result);
6087                                                 }
6088                                         }
6089                                 }
6090                         }
6091                 }
6092
6093         } else {
6094
6095                 RegionSelection rs;
6096
6097                 get_regions_for_action (rs);
6098
6099                 if (rs.empty()) {
6100                         return;
6101                 }
6102
6103                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6104                         (*r)->region()->get_transients (positions);
6105                 }
6106         }
6107
6108         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6109
6110         if (forward) {
6111                 AnalysisFeatureList::iterator x;
6112
6113                 for (x = positions.begin(); x != positions.end(); ++x) {
6114                         if ((*x) > pos) {
6115                                 break;
6116                         }
6117                 }
6118
6119                 if (x != positions.end ()) {
6120                         session->request_locate (*x);
6121                 }
6122
6123         } else {
6124                 AnalysisFeatureList::reverse_iterator x;
6125
6126                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6127                         if ((*x) < pos) {
6128                                 break;
6129                         }
6130                 }
6131
6132                 if (x != positions.rend ()) {
6133                         session->request_locate (*x);
6134                 }
6135         }
6136 }
6137 void
6138 Editor::playhead_forward_to_grid ()
6139 {
6140         if (!session) return;
6141         nframes64_t pos = playhead_cursor->current_frame;
6142         if (pos < max_frames - 1) {
6143                 pos += 2;
6144                 snap_to_internal (pos, 1, false);
6145                 session->request_locate (pos);
6146         }
6147 }
6148
6149
6150 void
6151 Editor::playhead_backward_to_grid ()
6152 {
6153         if (!session) return;
6154         nframes64_t pos = playhead_cursor->current_frame;
6155         if (pos > 2) {
6156                 pos -= 2;
6157                 snap_to_internal (pos, -1, false);
6158                 session->request_locate (pos);
6159         }
6160 }
6161
6162 void
6163 Editor::set_track_height (uint32_t h)
6164 {
6165         TrackSelection& ts (selection->tracks);
6166
6167         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6168                 (*x)->set_height (h);
6169         }
6170 }
6171
6172 void
6173 Editor::toggle_tracks_active ()
6174 {
6175         TrackSelection& ts (selection->tracks);
6176         bool first = true;
6177         bool target = false;
6178
6179         if (ts.empty()) {
6180                 return;
6181         }
6182
6183         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6184                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6185
6186                 if (rtv) {
6187                         if (first) {
6188                                 target = !rtv->_route->active();
6189                                 first = false;
6190                         }
6191                         rtv->_route->set_active (target);
6192                 }
6193         }
6194 }
6195
6196 void
6197 Editor::remove_tracks ()
6198 {
6199         TrackSelection& ts (selection->tracks);
6200
6201         if (ts.empty()) {
6202                 return;
6203         }
6204
6205         vector<string> choices;
6206         string prompt;
6207         int ntracks = 0;
6208         int nbusses = 0;
6209         const char* trackstr;
6210         const char* busstr;
6211         vector<boost::shared_ptr<Route> > routes;
6212
6213         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6214                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6215                 if (rtv) {
6216                         if (rtv->is_track()) {
6217                                 ntracks++;
6218                         } else {
6219                                 nbusses++;
6220                         }
6221                 }
6222                 routes.push_back (rtv->_route);
6223         }
6224
6225         if (ntracks + nbusses == 0) {
6226                 return;
6227         }
6228
6229         if (ntracks > 1) {
6230                 trackstr = _("tracks");
6231         } else {
6232                 trackstr = _("track");
6233         }
6234
6235         if (nbusses > 1) {
6236                 busstr = _("busses");
6237         } else {
6238                 busstr = _("bus");
6239         }
6240
6241         if (ntracks) {
6242                 if (nbusses) {
6243                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6244                                                     "(You may also lose the playlists associated with the %2)\n\n"
6245                                                     "This action cannot be undone!"),
6246                                                   ntracks, trackstr, nbusses, busstr);
6247                 } else {
6248                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6249                                                     "(You may also lose the playlists associated with the %2)\n\n"
6250                                                     "This action cannot be undone!"),
6251                                                   ntracks, trackstr);
6252                 }
6253         } else if (nbusses) {
6254                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6255                                           nbusses, busstr);
6256         }
6257
6258         choices.push_back (_("No, do nothing."));
6259         if (ntracks + nbusses > 1) {
6260                 choices.push_back (_("Yes, remove them."));
6261         } else {
6262                 choices.push_back (_("Yes, remove it."));
6263         }
6264
6265         Choice prompter (prompt, choices);
6266
6267         if (prompter.run () != 1) {
6268                 return;
6269         }
6270
6271         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6272                 session->remove_route (*x);
6273         }
6274 }
6275
6276 void
6277 Editor::do_insert_time ()
6278 {
6279         if (selection->tracks.empty()) {
6280                 return;
6281         }
6282
6283         ArdourDialog d (*this, _("Insert Time"));
6284
6285         nframes64_t const pos = get_preferred_edit_position ();
6286
6287         d.get_vbox()->set_border_width (12);
6288         d.get_vbox()->set_spacing (4);
6289
6290         Table table (2, 2);
6291         table.set_spacings (4);
6292
6293         Label time_label (_("Time to insert:"));
6294         time_label.set_alignment (1, 0.5);
6295         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6296         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
6297         clock.set (0);
6298         clock.set_session (session);
6299         clock.set_bbt_reference (pos);
6300         table.attach (clock, 1, 2, 0, 1);
6301
6302         Label intersected_label (_("Intersected regions should:"));
6303         intersected_label.set_alignment (1, 0.5);
6304         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6305         ComboBoxText intersected_combo;
6306         intersected_combo.append_text (_("stay in position"));
6307         intersected_combo.append_text (_("move"));
6308         intersected_combo.append_text (_("be split"));
6309         intersected_combo.set_active (0);
6310         table.attach (intersected_combo, 1, 2, 1, 2);
6311
6312         d.get_vbox()->pack_start (table);
6313
6314         CheckButton move_glued (_("Move glued regions"));
6315         d.get_vbox()->pack_start (move_glued);
6316         CheckButton move_markers (_("Move markers"));
6317         d.get_vbox()->pack_start (move_markers);
6318         CheckButton move_tempos (_("Move tempo and meter changes"));
6319         d.get_vbox()->pack_start (move_tempos);
6320
6321         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6322         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6323         d.show_all ();
6324
6325         int response = d.run ();
6326
6327         if (response != RESPONSE_OK) {
6328                 return;
6329         }
6330
6331         nframes64_t distance = clock.current_duration (pos);
6332
6333         if (distance == 0) {
6334                 return;
6335         }
6336
6337         InsertTimeOption opt;
6338
6339         switch (intersected_combo.get_active_row_number ()) {
6340         case 0:
6341                 opt = LeaveIntersected;
6342                 break;
6343         case 1:
6344                 opt = MoveIntersected;
6345                 break;
6346         case 2:
6347                 opt = SplitIntersected;
6348                 break;
6349         }
6350
6351         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6352 }
6353
6354 void
6355 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6356                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6357 {
6358         bool commit = false;
6359
6360         if (Config->get_edit_mode() == Lock) {
6361                 return;
6362         }
6363
6364         begin_reversible_command (_("insert time"));
6365
6366         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6367                 /* regions */
6368                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6369
6370                 if (pl) {
6371
6372                         XMLNode &before = pl->get_state();
6373
6374                         if (opt == SplitIntersected) {
6375                                 pl->split (pos);
6376                         }
6377
6378                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6379
6380                         XMLNode &after = pl->get_state();
6381
6382                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6383                         commit = true;
6384                 }
6385
6386                 /* automation */
6387                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6388                 if (rtav) {
6389                         rtav->route ()->shift (pos, frames);
6390                         commit = true;
6391                 }
6392         }
6393
6394         /* markers */
6395         if (markers_too) {
6396                 bool moved = false;
6397                 XMLNode& before (session->locations()->get_state());
6398                 Locations::LocationList copy (session->locations()->list());
6399
6400                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6401
6402                         Locations::LocationList::const_iterator tmp;
6403
6404                         if ((*i)->start() >= pos) {
6405                                 (*i)->set_start ((*i)->start() + frames);
6406                                 if (!(*i)->is_mark()) {
6407                                         (*i)->set_end ((*i)->end() + frames);
6408                                 }
6409                                 moved = true;
6410                         }
6411                 }
6412
6413                 if (moved) {
6414                         XMLNode& after (session->locations()->get_state());
6415                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6416                 }
6417         }
6418
6419         if (tempo_too) {
6420                 session->tempo_map().insert_time (pos, frames);
6421         }
6422
6423         if (commit) {
6424                 commit_reversible_command ();
6425         }
6426 }
6427
6428 void
6429 Editor::fit_selected_tracks ()
6430 {
6431         fit_tracks (selection->tracks);
6432 }
6433
6434 void
6435 Editor::fit_tracks (TrackSelection & tracks)
6436 {
6437         if (tracks.empty()) {
6438                 return;
6439         }
6440
6441         uint32_t child_heights = 0;
6442
6443         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6444
6445                 if (!(*t)->marked_for_display()) {
6446                         continue;
6447                 }
6448
6449                 child_heights += (*t)->effective_height() - (*t)->current_height();
6450         }
6451
6452         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6453         double first_y_pos = DBL_MAX;
6454
6455         if (h < TimeAxisView::hSmall) {
6456                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6457                 /* too small to be displayed */
6458                 return;
6459         }
6460
6461         undo_visual_stack.push_back (current_visual_state());
6462
6463         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6464
6465         bool prev_was_selected = false;
6466         bool is_selected = tracks.contains (track_views.front());
6467         bool next_is_selected;
6468
6469         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6470
6471                 TrackViewList::iterator next;
6472
6473                 next = t;
6474                 ++next;
6475
6476                 if (next != track_views.end()) {
6477                         next_is_selected = tracks.contains (*next);
6478                 } else {
6479                         next_is_selected = false;
6480                 }
6481
6482                 if (is_selected) {
6483                         (*t)->set_height (h);
6484                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6485                 } else {
6486                         if (prev_was_selected && next_is_selected) {
6487                                 hide_track_in_display (**t);
6488                         }
6489                 }
6490
6491                 prev_was_selected = is_selected;
6492                 is_selected = next_is_selected;
6493         }
6494
6495         /*
6496            set the controls_layout height now, because waiting for its size
6497            request signal handler will cause the vertical adjustment setting to fail
6498         */
6499
6500         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6501         vertical_adjustment.set_value (first_y_pos);
6502
6503         redo_visual_stack.push_back (current_visual_state());
6504 }
6505
6506 void
6507 Editor::save_visual_state (uint32_t n)
6508 {
6509         while (visual_states.size() <= n) {
6510                 visual_states.push_back (0);
6511         }
6512
6513         delete visual_states[n];
6514
6515         visual_states[n] = current_visual_state (true);
6516         gdk_beep ();
6517 }
6518
6519 void
6520 Editor::goto_visual_state (uint32_t n)
6521 {
6522         if (visual_states.size() <= n) {
6523                 return;
6524         }
6525
6526         if (visual_states[n] == 0) {
6527                 return;
6528         }
6529
6530         use_visual_state (*visual_states[n]);
6531 }
6532
6533 void
6534 Editor::start_visual_state_op (uint32_t n)
6535 {
6536         cerr << "Start visual op\n";
6537         if (visual_state_op_connection.empty()) {
6538                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6539                 cerr << "\tqueued new timeout\n";
6540         }
6541 }
6542
6543 void
6544 Editor::cancel_visual_state_op (uint32_t n)
6545 {
6546         if (!visual_state_op_connection.empty()) {
6547                 cerr << "cancel visual op, time to goto\n";
6548                 visual_state_op_connection.disconnect();
6549                 goto_visual_state (n);
6550         } else {
6551                 cerr << "cancel visual op, do nothing\n";
6552         }
6553 }
6554
6555 bool
6556 Editor::end_visual_state_op (uint32_t n)
6557 {
6558         visual_state_op_connection.disconnect();
6559         save_visual_state (n);
6560
6561         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6562         char buf[32];
6563         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6564         pup->set_text (buf);
6565         pup->touch();
6566
6567         return false; // do not call again
6568 }
6569