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 #include <unistd.h>
  21
  22 #include <cstdlib>
  23 #include <cmath>
  24 #include <string>
  25 #include <map>
  26 #include <set>
  27
  28 #include <pbd/error.h>
  29 #include <pbd/basename.h>
  30 #include <pbd/pthread_utils.h>
  31 #include <pbd/memento_command.h>
  32 #include <pbd/whitespace.h>
  33
  34 #include <gtkmm2ext/utils.h>
  35 #include <gtkmm2ext/choice.h>
  36 #include <gtkmm2ext/window_title.h>
  37 #include <gtkmm2ext/popup.h>
  38
  39
  40 #include <ardour/audioengine.h>
  41 #include <ardour/session.h>
  42 #include <ardour/audioplaylist.h>
  43 #include <ardour/audioregion.h>
  44 #include <ardour/audio_diskstream.h>
  45 #include <ardour/utils.h>
  46 #include <ardour/location.h>
  47 #include <ardour/named_selection.h>
  48 #include <ardour/audio_track.h>
  49 #include <ardour/audiofilesource.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
  57 #include "ardour_ui.h"
  58 #include "editor.h"
  59 #include "time_axis_view.h"
  60 #include "route_time_axis.h"
  61 #include "audio_time_axis.h"
  62 #include "automation_time_axis.h"
  63 #include "streamview.h"
  64 #include "audio_streamview.h"
  65 #include "audio_region_view.h"
  66 #include "rgb_macros.h"
  67 #include "selection_templates.h"
  68 #include "selection.h"
  69 #include "editing.h"
  70 #include "gtk-custom-hruler.h"
  71 #include "gui_thread.h"
  72 #include "keyboard.h"
  73 #include "utils.h"
  74
  75 #include "i18n.h"
  76
  77 using namespace std;
  78 using namespace ARDOUR;
  79 using namespace PBD;
  80 using namespace sigc;
  81 using namespace Gtk;
  82 using namespace Gtkmm2ext;
  83 using namespace Editing;
  84
  85 /***********************************************************************
  86   Editor operations
  87  ***********************************************************************/
  88
  89 void
  90 Editor::undo (uint32_t n)
  91 {
  92         if (session) {
  93                 session->undo (n);
  94         }
  95 }
  96
  97 void
  98 Editor::redo (uint32_t n)
  99 {
 100         if (session) {
 101                 session->redo (n);
 102         }
 103 }
 104
 105 void
 106 Editor::split_region ()
 107 {
 108         split_region_at (get_preferred_edit_position());
 109 }
 110
 111 void
 112 Editor::split_region_at (nframes64_t where)
 113 {
 114         RegionSelection rs;
 115
 116         get_regions_for_action (rs);
 117         split_regions_at (where, selection->regions);
 118 }
 119
 120 void
 121 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 122 {
 123         if (regions.empty()) {
 124                 return;
 125         }
 126
 127         begin_reversible_command (_("split"));
 128
 129         // if splitting a single region, and snap-to is using
 130         // region boundaries, don't pay attention to them
 131
 132         if (regions.size() == 1) {
 133                 switch (snap_type) {
 134                 case SnapToRegionStart:
 135                 case SnapToRegionSync:
 136                 case SnapToRegionEnd:
 137                         break;
 138                 default:
 139                         snap_to (where);
 140                 }
 141         } else {
 142                 snap_to (where);
 143         }
 144
 145         cerr << "Split " << regions.size() << " at " << where << endl;
 146
 147         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 148
 149                 RegionSelection::iterator tmp;
 150
 151                 /* XXX this test needs to be more complicated, to make sure we really
 152                    have something to split.
 153                 */
 154
 155                 if (!(*a)->region()->covers (where)) {
 156                         ++a;
 157                         continue;
 158                 }
 159
 160                 tmp = a;
 161                 ++tmp;
 162
 163                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 164
 165                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 166
 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         commit_reversible_command ();
 182         _new_regionviews_show_envelope = false;
 183 }
 184
 185 void
 186 Editor::remove_clicked_region ()
 187 {
 188         if (clicked_audio_trackview == 0 || clicked_regionview == 0) {
 189                 return;
 190         }
 191
 192         boost::shared_ptr<Playlist> playlist = clicked_audio_trackview->playlist();
 193
 194         begin_reversible_command (_("remove region"));
 195         XMLNode &before = playlist->get_state();
 196         playlist->remove_region (clicked_regionview->region());
 197         XMLNode &after = playlist->get_state();
 198         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 199         commit_reversible_command ();
 200 }
 201
 202 void
 203 Editor::remove_region ()
 204 {
 205
 206         RegionSelection rs;
 207         get_regions_for_action (rs);
 208
 209         if (!session) {
 210                 return;
 211         }
 212
 213         if (rs.empty()) {
 214                 return;
 215         }
 216
 217         begin_reversible_command (_("remove region"));
 218
 219         list<boost::shared_ptr<Region> > regions_to_remove;
 220
 221         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 222                 // we can't just remove the region(s) in this loop because
 223                 // this removes them from the RegionSelection, and they thus
 224                 // disappear from underneath the iterator, and the ++i above
 225                 // SEGVs in a puzzling fashion.
 226
 227                 // so, first iterate over the regions to be removed from rs and
 228                 // add them to the regions_to_remove list, and then
 229                 // iterate over the list to actually remove them.
 230
 231                 regions_to_remove.push_back ((*i)->region());
 232         }
 233
 234         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
 235                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
 236                 if (!playlist) {
 237                         // is this check necessary?
 238                         continue;
 239                 }
 240
 241                 XMLNode &before = playlist->get_state();
 242                 playlist->remove_region (*rl);
 243                 XMLNode &after = playlist->get_state();
 244                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 245         }
 246         commit_reversible_command ();
 247 }
 248
 249 boost::shared_ptr<Region>
 250 Editor::select_region_for_operation (int dir, TimeAxisView **tv)
 251 {
 252         RegionView* rv;
 253         boost::shared_ptr<Region> region;
 254         nframes64_t start = 0;
 255
 256         if (selection->time.start () == selection->time.end_frame ()) {
 257
 258                 /* no current selection-> is there a selected regionview? */
 259
 260                 if (selection->regions.empty()) {
 261                         return region;
 262                 }
 263
 264         }
 265
 266         if (!selection->regions.empty()) {
 267
 268                 rv = *(selection->regions.begin());
 269                 (*tv) = &rv->get_time_axis_view();
 270                 region = rv->region();
 271
 272         } else if (!selection->tracks.empty()) {
 273
 274                 (*tv) = selection->tracks.front();
 275
 276                 RouteTimeAxisView* rtv;
 277
 278                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 279                         boost::shared_ptr<Playlist> pl;
 280
 281                         if ((pl = rtv->playlist()) == 0) {
 282                                 return region;
 283                         }
 284
 285                         region = pl->top_region_at (start);
 286                 }
 287         }
 288
 289         return region;
 290 }
 291
 292 void
 293 Editor::extend_selection_to_end_of_region (bool next)
 294 {
 295         TimeAxisView *tv;
 296         boost::shared_ptr<Region> region;
 297         nframes64_t start;
 298
 299         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 300                 return;
 301         }
 302
 303         if (region && selection->time.start () == selection->time.end_frame ()) {
 304                 start = region->position();
 305         } else {
 306                 start = selection->time.start ();
 307         }
 308
 309         /* Try to leave the selection with the same route if possible */
 310
 311         if ((tv = selection->time.track) == 0) {
 312                 return;
 313         }
 314
 315         begin_reversible_command (_("extend selection"));
 316         selection->set (tv, start, region->position() + region->length());
 317         commit_reversible_command ();
 318 }
 319
 320 void
 321 Editor::extend_selection_to_start_of_region (bool previous)
 322 {
 323         TimeAxisView *tv;
 324         boost::shared_ptr<Region> region;
 325         nframes64_t end;
 326
 327         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 328                 return;
 329         }
 330
 331         if (region && selection->time.start () == selection->time.end_frame ()) {
 332                 end = region->position() + region->length();
 333         } else {
 334                 end = selection->time.end_frame ();
 335         }
 336
 337         /* Try to leave the selection with the same route if possible */
 338
 339         if ((tv = selection->time.track) == 0) {
 340                 return;
 341         }
 342
 343         begin_reversible_command (_("extend selection"));
 344         selection->set (tv, region->position(), end);
 345         commit_reversible_command ();
 346 }
 347
 348 bool
 349 Editor::nudge_forward_release (GdkEventButton* ev)
 350 {
 351         if (ev->state & Keyboard::PrimaryModifier) {
 352                 nudge_forward (false, true);
 353         } else {
 354                 nudge_forward (false, false);
 355         }
 356         return false;
 357 }
 358
 359 bool
 360 Editor::nudge_backward_release (GdkEventButton* ev)
 361 {
 362         if (ev->state & Keyboard::PrimaryModifier) {
 363                 nudge_backward (false, true);
 364         } else {
 365                 nudge_backward (false, false);
 366         }
 367         return false;
 368 }
 369
 370
 371 void
 372 Editor::nudge_forward (bool next, bool force_playhead)
 373 {
 374         nframes64_t distance;
 375         nframes64_t next_distance;
 376         RegionSelection rs;
 377
 378         get_regions_for_action (rs);
 379
 380         if (!session) return;
 381
 382         if (!force_playhead && !rs.empty()) {
 383
 384                 begin_reversible_command (_("nudge regions forward"));
 385
 386                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 387                         boost::shared_ptr<Region> r ((*i)->region());
 388
 389                         distance = get_nudge_distance (r->position(), next_distance);
 390
 391                         if (next) {
 392                                 distance = next_distance;
 393                         }
 394
 395                         XMLNode &before = r->playlist()->get_state();
 396                         r->set_position (r->position() + distance, this);
 397                         XMLNode &after = r->playlist()->get_state();
 398                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 399                 }
 400
 401                 commit_reversible_command ();
 402
 403
 404         } else if (!force_playhead && !selection->markers.empty()) {
 405
 406                 bool is_start;
 407
 408                 begin_reversible_command (_("nudge location forward"));
 409
 410                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 411
 412                         Location* loc = find_location_from_marker ((*i), is_start);
 413
 414                         if (loc) {
 415
 416                                 XMLNode& before (loc->get_state());
 417
 418                                 if (is_start) {
 419                                         distance = get_nudge_distance (loc->start(), next_distance);
 420                                         if (next) {
 421                                                 distance = next_distance;
 422                                         }
 423                                         if (max_frames - distance > loc->start() + loc->length()) {
 424                                                 loc->set_start (loc->start() + distance);
 425                                         } else {
 426                                                 loc->set_start (max_frames - loc->length());
 427                                         }
 428                                 } else {
 429                                         distance = get_nudge_distance (loc->end(), next_distance);
 430                                         if (next) {
 431                                                 distance = next_distance;
 432                                         }
 433                                         if (max_frames - distance > loc->end()) {
 434                                                 loc->set_end (loc->end() + distance);
 435                                         } else {
 436                                                 loc->set_end (max_frames);
 437                                         }
 438                                 }
 439                                 XMLNode& after (loc->get_state());
 440                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 441                         }
 442                 }
 443
 444                 commit_reversible_command ();
 445
 446         } else {
 447                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 448                 session->request_locate (playhead_cursor->current_frame + distance);
 449         }
 450 }
 451
 452 void
 453 Editor::nudge_backward (bool next, bool force_playhead)
 454 {
 455         nframes64_t distance;
 456         nframes64_t next_distance;
 457         RegionSelection rs;
 458
 459         get_regions_for_action (rs);
 460
 461         if (!session) return;
 462
 463         if (!force_playhead && !rs.empty()) {
 464
 465                 begin_reversible_command (_("nudge regions backward"));
 466
 467                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 468                         boost::shared_ptr<Region> r ((*i)->region());
 469
 470                         distance = get_nudge_distance (r->position(), next_distance);
 471
 472                         if (next) {
 473                                 distance = next_distance;
 474                         }
 475
 476                         XMLNode &before = r->playlist()->get_state();
 477
 478                         if (r->position() > distance) {
 479                                 r->set_position (r->position() - distance, this);
 480                         } else {
 481                                 r->set_position (0, this);
 482                         }
 483                         XMLNode &after = r->playlist()->get_state();
 484                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 485                 }
 486
 487                 commit_reversible_command ();
 488
 489         } else if (!force_playhead && !selection->markers.empty()) {
 490
 491                 bool is_start;
 492
 493                 begin_reversible_command (_("nudge location forward"));
 494
 495                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 496
 497                         Location* loc = find_location_from_marker ((*i), is_start);
 498
 499                         if (loc) {
 500
 501                                 XMLNode& before (loc->get_state());
 502
 503                                 if (is_start) {
 504                                         distance = get_nudge_distance (loc->start(), next_distance);
 505                                         if (next) {
 506                                                 distance = next_distance;
 507                                         }
 508                                         if (distance < loc->start()) {
 509                                                 loc->set_start (loc->start() - distance);
 510                                         } else {
 511                                                 loc->set_start (0);
 512                                         }
 513                                 } else {
 514                                         distance = get_nudge_distance (loc->end(), next_distance);
 515
 516                                         if (next) {
 517                                                 distance = next_distance;
 518                                         }
 519
 520                                         if (distance < loc->end() - loc->length()) {
 521                                                 loc->set_end (loc->end() - distance);
 522                                         } else {
 523                                                 loc->set_end (loc->length());
 524                                         }
 525                                 }
 526
 527                                 XMLNode& after (loc->get_state());
 528                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 529                         }
 530                 }
 531
 532                 commit_reversible_command ();
 533
 534         } else {
 535
 536                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 537
 538                 if (playhead_cursor->current_frame > distance) {
 539                         session->request_locate (playhead_cursor->current_frame - distance);
 540                 } else {
 541                         session->goto_start();
 542                 }
 543         }
 544 }
 545
 546 void
 547 Editor::nudge_forward_capture_offset ()
 548 {
 549         nframes64_t distance;
 550         RegionSelection rs;
 551
 552         get_regions_for_action (rs);
 553
 554         if (!session) return;
 555
 556         if (!rs.empty()) {
 557
 558                 begin_reversible_command (_("nudge forward"));
 559
 560                 distance = session->worst_output_latency();
 561
 562                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 563                         boost::shared_ptr<Region> r ((*i)->region());
 564
 565                         XMLNode &before = r->playlist()->get_state();
 566                         r->set_position (r->position() + distance, this);
 567                         XMLNode &after = r->playlist()->get_state();
 568                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 569                 }
 570
 571                 commit_reversible_command ();
 572
 573         }
 574 }
 575
 576 void
 577 Editor::nudge_backward_capture_offset ()
 578 {
 579         nframes64_t distance;
 580         RegionSelection rs;
 581
 582         get_regions_for_action (rs);
 583
 584         if (!session) return;
 585
 586         if (!rs.empty()) {
 587
 588                 begin_reversible_command (_("nudge forward"));
 589
 590                 distance = session->worst_output_latency();
 591
 592                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 593                         boost::shared_ptr<Region> r ((*i)->region());
 594
 595                         XMLNode &before = r->playlist()->get_state();
 596
 597                         if (r->position() > distance) {
 598                                 r->set_position (r->position() - distance, this);
 599                         } else {
 600                                 r->set_position (0, this);
 601                         }
 602                         XMLNode &after = r->playlist()->get_state();
 603                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 604                 }
 605
 606                 commit_reversible_command ();
 607         }
 608 }
 609
 610 /* DISPLAY MOTION */
 611
 612 void
 613 Editor::move_to_start ()
 614 {
 615         session->goto_start ();
 616 }
 617
 618 void
 619 Editor::move_to_end ()
 620 {
 621
 622         session->request_locate (session->current_end_frame());
 623 }
 624
 625 void
 626 Editor::build_region_boundary_cache ()
 627 {
 628         nframes64_t pos = 0;
 629         vector<RegionPoint> interesting_points;
 630         boost::shared_ptr<Region> r;
 631         TrackViewList tracks;
 632         bool at_end = false;
 633
 634         region_boundary_cache.clear ();
 635
 636         if (session == 0) {
 637                 return;
 638         }
 639
 640         switch (snap_type) {
 641         case SnapToRegionStart:
 642                 interesting_points.push_back (Start);
 643                 break;
 644         case SnapToRegionEnd:
 645                 interesting_points.push_back (End);
 646                 break;
 647         case SnapToRegionSync:
 648                 interesting_points.push_back (SyncPoint);
 649                 break;
 650         case SnapToRegionBoundary:
 651                 interesting_points.push_back (Start);
 652                 interesting_points.push_back (End);
 653                 break;
 654         default:
 655                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 656                 /*NOTREACHED*/
 657                 return;
 658         }
 659
 660         TimeAxisView *ontrack = 0;
 661         TrackViewList tlist;
 662
 663         if (!selection->tracks.empty()) {
 664                 tlist = selection->tracks;
 665         } else {
 666                 tlist = track_views;
 667         }
 668
 669         while (pos < session->current_end_frame() && !at_end) {
 670
 671                 nframes64_t rpos;
 672                 nframes64_t lpos = max_frames;
 673
 674                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 675
 676                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 677                                 if (*p == interesting_points.back()) {
 678                                         at_end = true;
 679                                 }
 680                                 /* move to next point type */
 681                                 continue;
 682                         }
 683
 684                         switch (*p) {
 685                         case Start:
 686                                 rpos = r->first_frame();
 687                                 break;
 688
 689                         case End:
 690                                 rpos = r->last_frame();
 691                                 break;
 692
 693                         case SyncPoint:
 694                                 rpos = r->adjust_to_sync (r->first_frame());
 695                                 break;
 696
 697                         default:
 698                                 break;
 699                         }
 700
 701                         float speed = 1.0f;
 702                         AudioTimeAxisView *atav;
 703
 704                         if (ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 705                                 if (atav->get_diskstream() != 0) {
 706                                         speed = atav->get_diskstream()->speed();
 707                                 }
 708                         }
 709
 710                         rpos = track_frame_to_session_frame (rpos, speed);
 711
 712                         if (rpos < lpos) {
 713                                 lpos = rpos;
 714                         }
 715
 716                         /* prevent duplicates, but we don't use set<> because we want to be able
 717                            to sort later.
 718                         */
 719
 720                         vector<nframes64_t>::iterator ri;
 721
 722                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 723                                 if (*ri == rpos) {
 724                                         break;
 725                                 }
 726                         }
 727
 728                         if (ri == region_boundary_cache.end()) {
 729                                 region_boundary_cache.push_back (rpos);
 730                         }
 731                 }
 732
 733                 pos = lpos + 1;
 734         }
 735
 736         /* finally sort to be sure that the order is correct */
 737
 738         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 739 }
 740
 741 boost::shared_ptr<Region>
 742 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 743 {
 744         TrackViewList::iterator i;
 745         nframes64_t closest = max_frames;
 746         boost::shared_ptr<Region> ret;
 747         nframes64_t rpos = 0;
 748
 749         float track_speed;
 750         nframes64_t track_frame;
 751         AudioTimeAxisView *atav;
 752
 753         for (i = tracks.begin(); i != tracks.end(); ++i) {
 754
 755                 nframes64_t distance;
 756                 boost::shared_ptr<Region> r;
 757
 758                 track_speed = 1.0f;
 759                 if ( (atav = dynamic_cast<AudioTimeAxisView*>(*i)) != 0 ) {
 760                         if (atav->get_diskstream()!=0)
 761                                 track_speed = atav->get_diskstream()->speed();
 762                 }
 763
 764                 track_frame = session_frame_to_track_frame(frame, track_speed);
 765
 766                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 767                         continue;
 768                 }
 769
 770                 switch (point) {
 771                 case Start:
 772                         rpos = r->first_frame ();
 773                         break;
 774
 775                 case End:
 776                         rpos = r->last_frame ();
 777                         break;
 778
 779                 case SyncPoint:
 780                         rpos = r->adjust_to_sync (r->first_frame());
 781                         break;
 782                 }
 783
 784                 // rpos is a "track frame", converting it to "session frame"
 785                 rpos = track_frame_to_session_frame(rpos, track_speed);
 786
 787                 if (rpos > frame) {
 788                         distance = rpos - frame;
 789                 } else {
 790                         distance = frame - rpos;
 791                 }
 792
 793                 if (distance < closest) {
 794                         closest = distance;
 795                         if (ontrack != 0)
 796                                 *ontrack = (*i);
 797                         ret = r;
 798                 }
 799         }
 800
 801         return ret;
 802 }
 803
 804 nframes64_t
 805 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 806 {
 807         nframes64_t distance = max_frames;
 808         nframes64_t current_nearest = -1;
 809
 810         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 811                 nframes64_t contender;
 812                 nframes64_t d;
 813
 814                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 815
 816                 if (!rtv) {
 817                         continue;
 818                 }
 819
 820                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 821                         continue;
 822                 }
 823
 824                 d = ::llabs (pos - contender);
 825
 826                 if (d < distance) {
 827                         current_nearest = contender;
 828                         distance = d;
 829                 }
 830         }
 831
 832         return current_nearest;
 833 }
 834
 835 void
 836 Editor::cursor_to_region_boundary (Cursor* cursor, int32_t dir)
 837 {
 838         nframes64_t pos = cursor->current_frame;
 839         nframes64_t target;
 840
 841         if (!session) {
 842                 return;
 843         }
 844
 845         // so we don't find the current region again..
 846         if (dir > 0 || pos > 0) {
 847                 pos += dir;
 848         }
 849
 850         if (!selection->tracks.empty()) {
 851
 852                 target = find_next_region_boundary (pos, dir, selection->tracks);
 853
 854         } else {
 855
 856                 target = find_next_region_boundary (pos, dir, track_views);
 857         }
 858
 859         if (target < 0) {
 860                 return;
 861         }
 862
 863
 864         if (cursor == playhead_cursor) {
 865                 session->request_locate (target);
 866         } else {
 867                 cursor->set_position (target);
 868         }
 869 }
 870
 871 void
 872 Editor::cursor_to_next_region_boundary (Cursor* cursor)
 873 {
 874         cursor_to_region_boundary (cursor, 1);
 875 }
 876
 877 void
 878 Editor::cursor_to_previous_region_boundary (Cursor* cursor)
 879 {
 880         cursor_to_region_boundary (cursor, -1);
 881 }
 882
 883 void
 884 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 885 {
 886         boost::shared_ptr<Region> r;
 887         nframes64_t pos = cursor->current_frame;
 888
 889         if (!session) {
 890                 return;
 891         }
 892
 893         TimeAxisView *ontrack = 0;
 894
 895         // so we don't find the current region again..
 896         if (dir>0 || pos>0)
 897                 pos+=dir;
 898
 899         if (!selection->tracks.empty()) {
 900
 901                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 902
 903         } else if (clicked_trackview) {
 904
 905                 TrackViewList t;
 906                 t.push_back (clicked_trackview);
 907
 908                 r = find_next_region (pos, point, dir, t, &ontrack);
 909
 910         } else {
 911
 912                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 913         }
 914
 915         if (r == 0) {
 916                 return;
 917         }
 918
 919         switch (point){
 920         case Start:
 921                 pos = r->first_frame ();
 922                 break;
 923
 924         case End:
 925                 pos = r->last_frame ();
 926                 break;
 927
 928         case SyncPoint:
 929                 pos = r->adjust_to_sync (r->first_frame());
 930                 break;
 931         }
 932
 933         float speed = 1.0f;
 934         AudioTimeAxisView *atav;
 935
 936         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 937                 if (atav->get_diskstream() != 0) {
 938                         speed = atav->get_diskstream()->speed();
 939                 }
 940         }
 941
 942         pos = track_frame_to_session_frame(pos, speed);
 943
 944         if (cursor == playhead_cursor) {
 945                 session->request_locate (pos);
 946         } else {
 947                 cursor->set_position (pos);
 948         }
 949 }
 950
 951 void
 952 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 953 {
 954         cursor_to_region_point (cursor, point, 1);
 955 }
 956
 957 void
 958 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 959 {
 960         cursor_to_region_point (cursor, point, -1);
 961 }
 962
 963 void
 964 Editor::cursor_to_selection_start (Cursor *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.start();
 975                 }
 976                 break;
 977
 978         case MouseRange:
 979                 if (!selection->time.empty()) {
 980                         pos = selection->time.start ();
 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::cursor_to_selection_end (Cursor *cursor)
 997 {
 998         nframes64_t pos = 0;
 999         RegionSelection rs;
1000
1001         get_regions_for_action (rs);
1002
1003         switch (mouse_mode) {
1004         case MouseObject:
1005                 if (!rs.empty()) {
1006                         pos = rs.end_frame();
1007                 }
1008                 break;
1009
1010         case MouseRange:
1011                 if (!selection->time.empty()) {
1012                         pos = selection->time.end_frame ();
1013                 }
1014                 break;
1015
1016         default:
1017                 return;
1018         }
1019
1020         if (cursor == playhead_cursor) {
1021                 session->request_locate (pos);
1022         } else {
1023                 cursor->set_position (pos);
1024         }
1025 }
1026
1027 void
1028 Editor::selected_marker_to_region_boundary (int32_t dir)
1029 {
1030         nframes64_t target;
1031         Location* loc;
1032         bool ignored;
1033
1034         if (!session) {
1035                 return;
1036         }
1037
1038         if (selection->markers.empty()) {
1039                 nframes64_t mouse;
1040                 bool ignored;
1041
1042                 if (!mouse_frame (mouse, ignored)) {
1043                         return;
1044                 }
1045
1046                 add_location_mark (mouse);
1047         }
1048
1049         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1050                 return;
1051         }
1052
1053         nframes64_t pos = loc->start();
1054
1055         // so we don't find the current region again..
1056         if (dir > 0 || pos > 0) {
1057                 pos += dir;
1058         }
1059
1060         if (!selection->tracks.empty()) {
1061
1062                 target = find_next_region_boundary (pos, dir, selection->tracks);
1063
1064         } else {
1065
1066                 target = find_next_region_boundary (pos, dir, track_views);
1067         }
1068
1069         if (target < 0) {
1070                 return;
1071         }
1072
1073         loc->move_to (target);
1074 }
1075
1076 void
1077 Editor::selected_marker_to_next_region_boundary ()
1078 {
1079         selected_marker_to_region_boundary (1);
1080 }
1081
1082 void
1083 Editor::selected_marker_to_previous_region_boundary ()
1084 {
1085         selected_marker_to_region_boundary (-1);
1086 }
1087
1088 void
1089 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1090 {
1091         boost::shared_ptr<Region> r;
1092         nframes64_t pos;
1093         Location* loc;
1094         bool ignored;
1095
1096         if (!session || selection->markers.empty()) {
1097                 return;
1098         }
1099
1100         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1101                 return;
1102         }
1103
1104         TimeAxisView *ontrack = 0;
1105
1106         pos = loc->start();
1107
1108         // so we don't find the current region again..
1109         if (dir>0 || pos>0)
1110                 pos+=dir;
1111
1112         if (!selection->tracks.empty()) {
1113
1114                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1115
1116         } else if (clicked_trackview) {
1117
1118                 TrackViewList t;
1119                 t.push_back (clicked_trackview);
1120
1121                 r = find_next_region (pos, point, dir, t, &ontrack);
1122
1123         } else {
1124
1125                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1126         }
1127
1128         if (r == 0) {
1129                 return;
1130         }
1131
1132         switch (point){
1133         case Start:
1134                 pos = r->first_frame ();
1135                 break;
1136
1137         case End:
1138                 pos = r->last_frame ();
1139                 break;
1140
1141         case SyncPoint:
1142                 pos = r->adjust_to_sync (r->first_frame());
1143                 break;
1144         }
1145
1146         float speed = 1.0f;
1147         AudioTimeAxisView *atav;
1148
1149         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1150                 if (atav->get_diskstream() != 0) {
1151                         speed = atav->get_diskstream()->speed();
1152                 }
1153         }
1154
1155         pos = track_frame_to_session_frame(pos, speed);
1156
1157         loc->move_to (pos);
1158 }
1159
1160 void
1161 Editor::selected_marker_to_next_region_point (RegionPoint point)
1162 {
1163         selected_marker_to_region_point (point, 1);
1164 }
1165
1166 void
1167 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1168 {
1169         selected_marker_to_region_point (point, -1);
1170 }
1171
1172 void
1173 Editor::selected_marker_to_selection_start ()
1174 {
1175         nframes64_t pos = 0;
1176         Location* loc;
1177         bool ignored;
1178
1179         if (!session || selection->markers.empty()) {
1180                 return;
1181         }
1182
1183         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1184                 return;
1185         }
1186
1187         RegionSelection rs;
1188
1189         get_regions_for_action (rs);
1190
1191         switch (mouse_mode) {
1192         case MouseObject:
1193                 if (!rs.empty()) {
1194                         pos = rs.start();
1195                 }
1196                 break;
1197
1198         case MouseRange:
1199                 if (!selection->time.empty()) {
1200                         pos = selection->time.start ();
1201                 }
1202                 break;
1203
1204         default:
1205                 return;
1206         }
1207
1208         loc->move_to (pos);
1209 }
1210
1211 void
1212 Editor::selected_marker_to_selection_end ()
1213 {
1214         nframes64_t pos = 0;
1215         Location* loc;
1216         bool ignored;
1217
1218         if (!session || selection->markers.empty()) {
1219                 return;
1220         }
1221
1222         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1223                 return;
1224         }
1225
1226         RegionSelection rs;
1227
1228         get_regions_for_action (rs);
1229
1230         switch (mouse_mode) {
1231         case MouseObject:
1232                 if (!rs.empty()) {
1233                         pos = rs.end_frame();
1234                 }
1235                 break;
1236
1237         case MouseRange:
1238                 if (!selection->time.empty()) {
1239                         pos = selection->time.end_frame ();
1240                 }
1241                 break;
1242
1243         default:
1244                 return;
1245         }
1246
1247         loc->move_to (pos);
1248 }
1249
1250 void
1251 Editor::scroll_playhead (bool forward)
1252 {
1253         nframes64_t pos = playhead_cursor->current_frame;
1254         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1255
1256         if (forward) {
1257                 if (pos == max_frames) {
1258                         return;
1259                 }
1260
1261                 if (pos < max_frames - delta) {
1262                         pos += delta ;
1263                 } else {
1264                         pos = max_frames;
1265                 }
1266
1267         } else {
1268
1269                 if (pos == 0) {
1270                         return;
1271                 }
1272
1273                 if (pos > delta) {
1274                         pos -= delta;
1275                 } else {
1276                         pos = 0;
1277                 }
1278         }
1279
1280         session->request_locate (pos);
1281 }
1282
1283 void
1284 Editor::playhead_backward ()
1285 {
1286         nframes64_t pos;
1287         nframes64_t cnt;
1288         float prefix;
1289         bool was_floating;
1290
1291         if (get_prefix (prefix, was_floating)) {
1292                 cnt = 1;
1293         } else {
1294                 if (was_floating) {
1295                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1296                 } else {
1297                         cnt = (nframes64_t) prefix;
1298                 }
1299         }
1300
1301         pos = playhead_cursor->current_frame;
1302
1303         if ((nframes64_t) pos < cnt) {
1304                 pos = 0;
1305         } else {
1306                 pos -= cnt;
1307         }
1308
1309         /* XXX this is completely insane. with the current buffering
1310            design, we'll force a complete track buffer flush and
1311            reload, just to move 1 sample !!!
1312         */
1313
1314         session->request_locate (pos);
1315 }
1316
1317 void
1318 Editor::playhead_forward ()
1319 {
1320         nframes64_t pos;
1321         nframes64_t cnt;
1322         bool was_floating;
1323         float prefix;
1324
1325         if (get_prefix (prefix, was_floating)) {
1326                 cnt = 1;
1327         } else {
1328                 if (was_floating) {
1329                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1330                 } else {
1331                         cnt = (nframes64_t) floor (prefix);
1332                 }
1333         }
1334
1335         pos = playhead_cursor->current_frame;
1336
1337         /* XXX this is completely insane. with the current buffering
1338            design, we'll force a complete track buffer flush and
1339            reload, just to move 1 sample !!!
1340         */
1341
1342         session->request_locate (pos+cnt);
1343 }
1344
1345 void
1346 Editor::cursor_align (bool playhead_to_edit)
1347 {
1348         if (!session) {
1349                 return;
1350         }
1351
1352         if (playhead_to_edit) {
1353
1354                 if (selection->markers.empty()) {
1355                         return;
1356                 }
1357
1358                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1359
1360         } else {
1361
1362                 /* move selected markers to playhead */
1363
1364                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1365                         bool ignored;
1366
1367                         Location* loc = find_location_from_marker (*i, ignored);
1368
1369                         if (loc->is_mark()) {
1370                                 loc->set_start (playhead_cursor->current_frame);
1371                         } else {
1372                                 loc->set (playhead_cursor->current_frame,
1373                                           playhead_cursor->current_frame + loc->length());
1374                         }
1375                 }
1376         }
1377 }
1378
1379 void
1380 Editor::edit_cursor_backward ()
1381 {
1382         nframes64_t pos;
1383         nframes64_t cnt;
1384         float prefix;
1385         bool was_floating;
1386
1387         if (get_prefix (prefix, was_floating)) {
1388                 cnt = 1;
1389         } else {
1390                 if (was_floating) {
1391                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1392                 } else {
1393                         cnt = (nframes64_t) prefix;
1394                 }
1395         }
1396
1397         if ((pos = get_preferred_edit_position()) < 0) {
1398                 return;
1399         }
1400
1401         if (pos < cnt) {
1402                 pos = 0;
1403         } else {
1404                 pos -= cnt;
1405         }
1406
1407         // EDIT CURSOR edit_cursor->set_position (pos);
1408 }
1409
1410 void
1411 Editor::edit_cursor_forward ()
1412 {
1413         //nframes64_t pos;
1414         nframes64_t cnt;
1415         bool was_floating;
1416         float prefix;
1417
1418         if (get_prefix (prefix, was_floating)) {
1419                 cnt = 1;
1420         } else {
1421                 if (was_floating) {
1422                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1423                 } else {
1424                         cnt = (nframes64_t) floor (prefix);
1425                 }
1426         }
1427
1428         // pos = edit_cursor->current_frame;
1429         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1430 }
1431
1432 void
1433 Editor::goto_frame ()
1434 {
1435         float prefix;
1436         bool was_floating;
1437         nframes64_t frame;
1438
1439         if (get_prefix (prefix, was_floating)) {
1440                 return;
1441         }
1442
1443         if (was_floating) {
1444                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1445         } else {
1446                 frame = (nframes64_t) floor (prefix);
1447         }
1448
1449         session->request_locate (frame);
1450 }
1451
1452 void
1453 Editor::scroll_backward (float pages)
1454 {
1455         nframes64_t frame;
1456         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1457         bool was_floating;
1458         float prefix;
1459         nframes64_t cnt;
1460
1461         if (get_prefix (prefix, was_floating)) {
1462                 cnt = (nframes64_t) floor (pages * one_page);
1463         } else {
1464                 if (was_floating) {
1465                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1466                 } else {
1467                         cnt = (nframes64_t) floor (prefix * one_page);
1468                 }
1469         }
1470
1471         if (leftmost_frame < cnt) {
1472                 frame = 0;
1473         } else {
1474                 frame = leftmost_frame - cnt;
1475         }
1476
1477         reset_x_origin (frame);
1478 }
1479
1480 void
1481 Editor::scroll_forward (float pages)
1482 {
1483         nframes64_t frame;
1484         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1485         bool was_floating;
1486         float prefix;
1487         nframes64_t cnt;
1488
1489         if (get_prefix (prefix, was_floating)) {
1490                 cnt = (nframes64_t) floor (pages * one_page);
1491         } else {
1492                 if (was_floating) {
1493                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1494                 } else {
1495                         cnt = (nframes64_t) floor (prefix * one_page);
1496                 }
1497         }
1498
1499         if (max_frames - cnt < leftmost_frame) {
1500                 frame = max_frames - cnt;
1501         } else {
1502                 frame = leftmost_frame + cnt;
1503         }
1504
1505         reset_x_origin (frame);
1506 }
1507
1508 void
1509 Editor::scroll_tracks_down ()
1510 {
1511         float prefix;
1512         bool was_floating;
1513         int cnt;
1514
1515         if (get_prefix (prefix, was_floating)) {
1516                 cnt = 1;
1517         } else {
1518                 cnt = (int) floor (prefix);
1519         }
1520
1521         double vert_value = vertical_adjustment.get_value() + (cnt *
1522                 vertical_adjustment.get_page_size());
1523         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1524                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1525         }
1526         vertical_adjustment.set_value (vert_value);
1527 }
1528
1529 void
1530 Editor::scroll_tracks_up ()
1531 {
1532         float prefix;
1533         bool was_floating;
1534         int cnt;
1535
1536         if (get_prefix (prefix, was_floating)) {
1537                 cnt = 1;
1538         } else {
1539                 cnt = (int) floor (prefix);
1540         }
1541
1542         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1543 }
1544
1545 void
1546 Editor::scroll_tracks_down_line ()
1547 {
1548
1549         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1550         double vert_value = adj->get_value() + 60;
1551
1552         if (vert_value>adj->get_upper() - canvas_height) {
1553                 vert_value = adj->get_upper() - canvas_height;
1554         }
1555         adj->set_value (vert_value);
1556 }
1557
1558 void
1559 Editor::scroll_tracks_up_line ()
1560 {
1561         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1562         adj->set_value (adj->get_value() - 60);
1563 }
1564
1565 /* ZOOM */
1566
1567 void
1568 Editor::temporal_zoom_step (bool coarser)
1569 {
1570         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1571
1572         double nfpu;
1573
1574         nfpu = frames_per_unit;
1575
1576         if (coarser) {
1577                 nfpu *= 1.61803399;
1578         } else {
1579                 nfpu = max(1.0,(nfpu/1.61803399));
1580         }
1581
1582         temporal_zoom (nfpu);
1583 }
1584
1585 void
1586 Editor::temporal_zoom (gdouble fpu)
1587 {
1588         if (!session) return;
1589
1590         nframes64_t current_page = current_page_frames();
1591         nframes64_t current_leftmost = leftmost_frame;
1592         nframes64_t current_rightmost;
1593         nframes64_t current_center;
1594         nframes64_t new_page_size;
1595         nframes64_t half_page_size;
1596         nframes64_t leftmost_after_zoom = 0;
1597         nframes64_t where;
1598         bool in_track_canvas;
1599         double nfpu;
1600         double l;
1601
1602         /* XXX this limit is also in ::set_frames_per_unit() */
1603
1604         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1605                 return;
1606         }
1607
1608         nfpu = fpu;
1609
1610         new_page_size = (nframes64_t) floor (canvas_width * nfpu);
1611         half_page_size = new_page_size / 2;
1612
1613         switch (zoom_focus) {
1614         case ZoomFocusLeft:
1615                 leftmost_after_zoom = current_leftmost;
1616                 break;
1617
1618         case ZoomFocusRight:
1619                 current_rightmost = leftmost_frame + current_page;
1620                 if (current_rightmost < new_page_size) {
1621                         leftmost_after_zoom = 0;
1622                 } else {
1623                         leftmost_after_zoom = current_rightmost - new_page_size;
1624                 }
1625                 break;
1626
1627         case ZoomFocusCenter:
1628                 current_center = current_leftmost + (current_page/2);
1629                 if (current_center < half_page_size) {
1630                         leftmost_after_zoom = 0;
1631                 } else {
1632                         leftmost_after_zoom = current_center - half_page_size;
1633                 }
1634                 break;
1635
1636         case ZoomFocusPlayhead:
1637                 /* try to keep the playhead in the same place */
1638
1639                 where = playhead_cursor->current_frame;
1640
1641                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1642
1643                 if (l < 0) {
1644                         leftmost_after_zoom = 0;
1645                 } else if (l > max_frames) {
1646                         leftmost_after_zoom = max_frames - new_page_size;
1647                 } else {
1648                         leftmost_after_zoom = (nframes64_t) l;
1649                 }
1650                 break;
1651
1652         case ZoomFocusMouse:
1653                 /* try to keep the mouse over the same point in the display */
1654
1655                 if (!mouse_frame (where, in_track_canvas)) {
1656                         /* use playhead instead */
1657                         where = playhead_cursor->current_frame;
1658
1659                         if (where < half_page_size) {
1660                                 leftmost_after_zoom = 0;
1661                         } else {
1662                                 leftmost_after_zoom = where - half_page_size;
1663                         }
1664
1665                 } else {
1666
1667                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1668
1669                         if (l < 0) {
1670                                 leftmost_after_zoom = 0;
1671                         } else if (l > max_frames) {
1672                                 leftmost_after_zoom = max_frames - new_page_size;
1673                         } else {
1674                                 leftmost_after_zoom = (nframes64_t) l;
1675                         }
1676                 }
1677
1678                 break;
1679
1680         case ZoomFocusEdit:
1681                 /* try to keep the edit point in the same place */
1682                 where = get_preferred_edit_position ();
1683
1684                 if (where > 0) {
1685
1686                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1687
1688                         if (l < 0) {
1689                                 leftmost_after_zoom = 0;
1690                         } else if (l > max_frames) {
1691                                 leftmost_after_zoom = max_frames - new_page_size;
1692                         } else {
1693                                 leftmost_after_zoom = (nframes64_t) l;
1694                         }
1695
1696                 } else {
1697                         /* edit point not defined */
1698                         return;
1699                 }
1700                 break;
1701
1702         }
1703
1704         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1705
1706         reposition_and_zoom (leftmost_after_zoom, nfpu);
1707 }
1708
1709 void
1710 Editor::temporal_zoom_region (bool both_axes)
1711 {
1712
1713         nframes64_t start = max_frames;
1714         nframes64_t end = 0;
1715         RegionSelection rs;
1716         set<TimeAxisView*> tracks;
1717
1718         get_regions_for_action (rs);
1719
1720         if (rs.empty()) {
1721                 return;
1722         }
1723
1724         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1725
1726                 if ((*i)->region()->position() < start) {
1727                         start = (*i)->region()->position();
1728                 }
1729
1730                 if ((*i)->region()->last_frame() + 1 > end) {
1731                         end = (*i)->region()->last_frame() + 1;
1732                 }
1733
1734                 tracks.insert (&((*i)->get_time_axis_view()));
1735         }
1736
1737         /* now comes an "interesting" hack ... make sure we leave a little space
1738            at each end of the editor so that the zoom doesn't fit the region
1739            precisely to the screen.
1740         */
1741
1742         GdkScreen* screen = gdk_screen_get_default ();
1743         gint pixwidth = gdk_screen_get_width (screen);
1744         gint mmwidth = gdk_screen_get_width_mm (screen);
1745         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1746         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1747
1748         if ((start == 0 && end == 0) || end < start) {
1749                 return;
1750         }
1751
1752         nframes64_t range = end - start;
1753         double new_fpu = (double)range / (double)canvas_width;
1754         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1755
1756         if (start > extra_samples) {
1757                 start -= extra_samples;
1758         } else {
1759                 start = 0;
1760         }
1761
1762         if (max_frames - extra_samples > end) {
1763                 end += extra_samples;
1764         } else {
1765                 end = max_frames;
1766         }
1767
1768         if (both_axes) {
1769                 /* save visual state with track states included, and prevent
1770                    set_frames_per_unit() from doing it again.
1771                 */
1772                 undo_visual_stack.push_back (current_visual_state(true));
1773                 no_save_visual = true;
1774         }
1775
1776         temporal_zoom_by_frame (start, end, "zoom to region");
1777
1778         if (both_axes) {
1779                 uint32_t per_track_height = (uint32_t) floor ((canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1780
1781                 /* set visible track heights appropriately */
1782
1783                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1784                         (*t)->set_height (per_track_height);
1785                 }
1786
1787                 /* hide irrelevant tracks */
1788
1789                 no_route_list_redisplay = true;
1790
1791                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1792                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1793                                 hide_track_in_display (**i, true);
1794                         }
1795                 }
1796
1797                 no_route_list_redisplay = false;
1798                 redisplay_route_list ();
1799
1800                 vertical_adjustment.set_value (0);
1801                 no_save_visual = false;
1802         }
1803
1804         zoomed_to_region = true;
1805         redo_visual_stack.push_back (current_visual_state());
1806 }
1807
1808 void
1809 Editor::toggle_zoom_region (bool both_axes)
1810 {
1811         if (zoomed_to_region) {
1812                 swap_visual_state ();
1813         } else {
1814                 temporal_zoom_region (both_axes);
1815         }
1816 }
1817
1818 void
1819 Editor::temporal_zoom_selection ()
1820 {
1821         if (!selection) return;
1822
1823         if (selection->time.empty()) {
1824                 return;
1825         }
1826
1827         nframes64_t start = selection->time[clicked_selection].start;
1828         nframes64_t end = selection->time[clicked_selection].end;
1829
1830         temporal_zoom_by_frame (start, end, "zoom to selection");
1831 }
1832
1833 void
1834 Editor::temporal_zoom_session ()
1835 {
1836         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1837
1838         if (session) {
1839                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1840         }
1841 }
1842
1843 void
1844 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & op)
1845 {
1846         if (!session) return;
1847
1848         if ((start == 0 && end == 0) || end < start) {
1849                 return;
1850         }
1851
1852         nframes64_t range = end - start;
1853
1854         double new_fpu = (double)range / (double)canvas_width;
1855
1856         nframes64_t new_page = (nframes64_t) floor (canvas_width * new_fpu);
1857         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1858         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1859
1860         if (new_leftmost > middle) {
1861                 new_leftmost = 0;
1862         }
1863
1864         reposition_and_zoom (new_leftmost, new_fpu);
1865 }
1866
1867 void
1868 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1869 {
1870         if (!session) {
1871                 return;
1872         }
1873         double range_before = frame - leftmost_frame;
1874         double new_fpu;
1875
1876         new_fpu = frames_per_unit;
1877
1878         if (coarser) {
1879                 new_fpu *= 1.61803399;
1880                 range_before *= 1.61803399;
1881         } else {
1882                 new_fpu = max(1.0,(new_fpu/1.61803399));
1883                 range_before /= 1.61803399;
1884         }
1885
1886         if (new_fpu == frames_per_unit)  {
1887                 return;
1888         }
1889
1890         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1891
1892         if (new_leftmost > frame) {
1893                 new_leftmost = 0;
1894         }
1895 //      begin_reversible_command (_("zoom to frame"));
1896 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1897 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1898 //      commit_reversible_command ();
1899
1900         reposition_and_zoom (new_leftmost, new_fpu);
1901 }
1902
1903
1904 bool
1905 Editor::choose_new_marker_name(string &name) {
1906
1907         if (!Config->get_name_new_markers()) {
1908                 /* don't prompt user for a new name */
1909                 return true;
1910         }
1911
1912         ArdourPrompter dialog (true);
1913
1914         dialog.set_prompt (_("New Name:"));
1915
1916         WindowTitle title(Glib::get_application_name());
1917         title += _("Name New Location Marker");
1918
1919         dialog.set_title(title.get_string());
1920
1921         dialog.set_name ("MarkNameWindow");
1922         dialog.set_size_request (250, -1);
1923         dialog.set_position (Gtk::WIN_POS_MOUSE);
1924
1925         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1926         dialog.set_initial_text (name);
1927
1928         dialog.show ();
1929
1930         switch (dialog.run ()) {
1931         case RESPONSE_ACCEPT:
1932                 break;
1933         default:
1934                 return false;
1935         }
1936
1937         dialog.get_result(name);
1938         return true;
1939
1940 }
1941
1942
1943 void
1944 Editor::add_location_from_selection ()
1945 {
1946         string rangename;
1947
1948         if (selection->time.empty()) {
1949                 return;
1950         }
1951
1952         if (session == 0 || clicked_trackview == 0) {
1953                 return;
1954         }
1955
1956         nframes64_t start = selection->time[clicked_selection].start;
1957         nframes64_t end = selection->time[clicked_selection].end;
1958
1959         session->locations()->next_available_name(rangename,"selection");
1960         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1961
1962         session->begin_reversible_command (_("add marker"));
1963         XMLNode &before = session->locations()->get_state();
1964         session->locations()->add (location, true);
1965         XMLNode &after = session->locations()->get_state();
1966         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1967         session->commit_reversible_command ();
1968 }
1969
1970 void
1971 Editor::add_location_mark (nframes64_t where)
1972 {
1973         string markername;
1974
1975         select_new_marker = true;
1976
1977         session->locations()->next_available_name(markername,"mark");
1978         if (!choose_new_marker_name(markername)) {
1979                 return;
1980         }
1981         Location *location = new Location (where, where, markername, Location::IsMark);
1982         session->begin_reversible_command (_("add marker"));
1983         XMLNode &before = session->locations()->get_state();
1984         session->locations()->add (location, true);
1985         XMLNode &after = session->locations()->get_state();
1986         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1987         session->commit_reversible_command ();
1988 }
1989
1990 void
1991 Editor::add_location_from_playhead_cursor ()
1992 {
1993         add_location_mark (session->audible_frame());
1994 }
1995
1996 void
1997 Editor::add_location_from_audio_region ()
1998 {
1999         RegionSelection rs;
2000
2001         get_regions_for_action (rs);
2002
2003         if (rs.empty()) {
2004                 return;
2005         }
2006
2007         RegionView* rv = *(rs.begin());
2008         boost::shared_ptr<Region> region = rv->region();
2009
2010         Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
2011         session->begin_reversible_command (_("add marker"));
2012         XMLNode &before = session->locations()->get_state();
2013         session->locations()->add (location, true);
2014         XMLNode &after = session->locations()->get_state();
2015         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2016         session->commit_reversible_command ();
2017 }
2018
2019 void
2020 Editor::amplitude_zoom_step (bool in)
2021 {
2022         gdouble zoom = 1.0;
2023
2024         if (in) {
2025                 zoom *= 2.0;
2026         } else {
2027                 if (zoom > 2.0) {
2028                         zoom /= 2.0;
2029                 } else {
2030                         zoom = 1.0;
2031                 }
2032         }
2033
2034 #ifdef FIX_FOR_CANVAS
2035         /* XXX DO SOMETHING */
2036 #endif
2037 }
2038
2039
2040 /* DELETION */
2041
2042
2043 void
2044 Editor::delete_sample_forward ()
2045 {
2046 }
2047
2048 void
2049 Editor::delete_sample_backward ()
2050 {
2051 }
2052
2053 void
2054 Editor::delete_screen ()
2055 {
2056 }
2057
2058 /* SEARCH */
2059
2060 void
2061 Editor::search_backwards ()
2062 {
2063         /* what ? */
2064 }
2065
2066 void
2067 Editor::search_forwards ()
2068 {
2069         /* what ? */
2070 }
2071
2072 /* MARKS */
2073
2074 void
2075 Editor::jump_forward_to_mark ()
2076 {
2077         if (!session) {
2078                 return;
2079         }
2080
2081         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2082
2083         if (location) {
2084                 session->request_locate (location->start(), session->transport_rolling());
2085         } else {
2086                 session->request_locate (session->current_end_frame());
2087         }
2088 }
2089
2090 void
2091 Editor::jump_backward_to_mark ()
2092 {
2093         if (!session) {
2094                 return;
2095         }
2096
2097         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2098
2099         if (location) {
2100                 session->request_locate (location->start(), session->transport_rolling());
2101         } else {
2102                 session->goto_start ();
2103         }
2104 }
2105
2106 void
2107 Editor::set_mark ()
2108 {
2109         nframes64_t pos;
2110         float prefix;
2111         bool was_floating;
2112         string markername;
2113
2114         if (get_prefix (prefix, was_floating)) {
2115                 pos = session->audible_frame ();
2116         } else {
2117                 if (was_floating) {
2118                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2119                 } else {
2120                         pos = (nframes64_t) floor (prefix);
2121                 }
2122         }
2123
2124         session->locations()->next_available_name(markername,"mark");
2125         if (!choose_new_marker_name(markername)) {
2126                 return;
2127         }
2128         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2129 }
2130
2131 void
2132 Editor::clear_markers ()
2133 {
2134         if (session) {
2135                 session->begin_reversible_command (_("clear markers"));
2136                 XMLNode &before = session->locations()->get_state();
2137                 session->locations()->clear_markers ();
2138                 XMLNode &after = session->locations()->get_state();
2139                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2140                 session->commit_reversible_command ();
2141         }
2142 }
2143
2144 void
2145 Editor::clear_ranges ()
2146 {
2147         if (session) {
2148                 session->begin_reversible_command (_("clear ranges"));
2149                 XMLNode &before = session->locations()->get_state();
2150
2151                 Location * looploc = session->locations()->auto_loop_location();
2152                 Location * punchloc = session->locations()->auto_punch_location();
2153
2154                 session->locations()->clear_ranges ();
2155                 // re-add these
2156                 if (looploc) session->locations()->add (looploc);
2157                 if (punchloc) session->locations()->add (punchloc);
2158
2159                 XMLNode &after = session->locations()->get_state();
2160                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2161                 session->commit_reversible_command ();
2162         }
2163 }
2164
2165 void
2166 Editor::clear_locations ()
2167 {
2168         session->begin_reversible_command (_("clear locations"));
2169         XMLNode &before = session->locations()->get_state();
2170         session->locations()->clear ();
2171         XMLNode &after = session->locations()->get_state();
2172         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2173         session->commit_reversible_command ();
2174         session->locations()->clear ();
2175 }
2176
2177 void
2178 Editor::unhide_markers ()
2179 {
2180         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2181                 Location *l = (*i).first;
2182                 if (l->is_hidden() && l->is_mark()) {
2183                         l->set_hidden(false, this);
2184                 }
2185         }
2186 }
2187
2188 void
2189 Editor::unhide_ranges ()
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_range_marker()) {
2194                         l->set_hidden(false, this);
2195                 }
2196         }
2197 }
2198
2199 /* INSERT/REPLACE */
2200
2201 void
2202 Editor::insert_region_list_drag (boost::shared_ptr<AudioRegion> region, int x, int y)
2203 {
2204         double wx, wy;
2205         double cx, cy;
2206         TimeAxisView *tv;
2207         nframes64_t where;
2208         AudioTimeAxisView *atv = 0;
2209         boost::shared_ptr<Playlist> playlist;
2210
2211         track_canvas->window_to_world (x, y, wx, wy);
2212         //wx += horizontal_adjustment.get_value();
2213         //wy += vertical_adjustment.get_value();
2214
2215         GdkEvent event;
2216         event.type = GDK_BUTTON_RELEASE;
2217         event.button.x = wx;
2218         event.button.y = wy;
2219
2220         where = event_frame (&event, &cx, &cy);
2221
2222         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2223                 /* clearly outside canvas area */
2224                 return;
2225         }
2226
2227         if ((tv = trackview_by_y_position (cy)) == 0) {
2228                 return;
2229         }
2230
2231         if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) == 0) {
2232                 return;
2233         }
2234
2235         if ((playlist = atv->playlist()) == 0) {
2236                 return;
2237         }
2238
2239         snap_to (where);
2240
2241         begin_reversible_command (_("insert dragged region"));
2242         XMLNode &before = playlist->get_state();
2243         playlist->add_region (RegionFactory::create (region), where, 1.0);
2244         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2245         commit_reversible_command ();
2246 }
2247
2248 void
2249 Editor::insert_region_list_selection (float times)
2250 {
2251         RouteTimeAxisView *tv = 0;
2252         boost::shared_ptr<Playlist> playlist;
2253
2254         if (clicked_audio_trackview != 0) {
2255                 tv = clicked_audio_trackview;
2256         } else if (!selection->tracks.empty()) {
2257                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2258                         return;
2259                 }
2260         } else if (entered_track != 0) {
2261                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2262                         return;
2263                 }
2264         } else {
2265                 return;
2266         }
2267
2268         if ((playlist = tv->playlist()) == 0) {
2269                 return;
2270         }
2271
2272         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2273
2274         if (selected->count_selected_rows() != 1) {
2275                 return;
2276         }
2277
2278         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2279
2280         /* only one row selected, so rows.begin() is it */
2281
2282         TreeIter iter;
2283
2284         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2285
2286                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2287
2288                 begin_reversible_command (_("insert region"));
2289                 XMLNode &before = playlist->get_state();
2290                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2291                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2292                 commit_reversible_command ();
2293         }
2294 }
2295
2296 /* BUILT-IN EFFECTS */
2297
2298 void
2299 Editor::reverse_selection ()
2300 {
2301
2302 }
2303
2304 /* GAIN ENVELOPE EDITING */
2305
2306 void
2307 Editor::edit_envelope ()
2308 {
2309 }
2310
2311 /* PLAYBACK */
2312
2313 void
2314 Editor::transition_to_rolling (bool fwd)
2315 {
2316         if (!session) {
2317                 return;
2318         }
2319
2320         switch (Config->get_slave_source()) {
2321         case None:
2322         case JACK:
2323                 break;
2324         default:
2325                 /* transport controlled by the master */
2326                 return;
2327         }
2328
2329         if (session->is_auditioning()) {
2330                 session->cancel_audition ();
2331                 return;
2332         }
2333
2334         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2335 }
2336
2337 void
2338 Editor::toggle_playback (bool with_abort)
2339 {
2340         if (!session) {
2341                 return;
2342         }
2343
2344         switch (Config->get_slave_source()) {
2345         case None:
2346         case JACK:
2347                 break;
2348         default:
2349                 /* transport controlled by the master */
2350                 return;
2351         }
2352
2353         if (session->is_auditioning()) {
2354                 session->cancel_audition ();
2355                 return;
2356         }
2357
2358         if (session->transport_rolling()) {
2359                 session->request_stop (with_abort);
2360                 if (session->get_play_loop()) {
2361                         session->request_play_loop (false);
2362                 }
2363         } else {
2364                 session->request_transport_speed (1.0f);
2365         }
2366 }
2367
2368 void
2369 Editor::play_from_start ()
2370 {
2371         session->request_locate (session->current_start_frame(), true);
2372 }
2373
2374 void
2375 Editor::play_from_edit_point ()
2376 {
2377         session->request_locate (get_preferred_edit_position(), true);
2378 }
2379
2380 void
2381 Editor::play_from_edit_point_and_return ()
2382 {
2383         nframes64_t start_frame;
2384         nframes64_t return_frame;
2385
2386         start_frame = get_preferred_edit_position (true);
2387
2388         if (session->transport_rolling()) {
2389                 session->request_locate (start_frame, false);
2390                 return;
2391         }
2392
2393         /* don't reset the return frame if its already set */
2394
2395         if ((return_frame = session->requested_return_frame()) < 0) {
2396                 return_frame = session->audible_frame();
2397         }
2398
2399         if (start_frame >= 0) {
2400                 session->request_roll_at_and_return (start_frame, return_frame);
2401         }
2402 }
2403
2404 void
2405 Editor::play_selection ()
2406 {
2407         if (selection->time.empty()) {
2408                 return;
2409         }
2410
2411         session->request_play_range (true);
2412 }
2413
2414 void
2415 Editor::loop_selected_region ()
2416 {
2417         RegionSelection rs;
2418
2419         get_regions_for_action (rs);
2420
2421         if (!rs.empty()) {
2422                 RegionView *rv = *(rs.begin());
2423                 Location* tll;
2424
2425                 if ((tll = transport_loop_location()) != 0)  {
2426
2427                         tll->set (rv->region()->position(), rv->region()->last_frame());
2428
2429                         // enable looping, reposition and start rolling
2430
2431                         session->request_play_loop (true);
2432                         session->request_locate (tll->start(), false);
2433                         session->request_transport_speed (1.0f);
2434                 }
2435         }
2436 }
2437
2438 void
2439 Editor::play_location (Location& location)
2440 {
2441         if (location.start() <= location.end()) {
2442                 return;
2443         }
2444
2445         session->request_bounded_roll (location.start(), location.end());
2446 }
2447
2448 void
2449 Editor::loop_location (Location& location)
2450 {
2451         if (location.start() <= location.end()) {
2452                 return;
2453         }
2454
2455         Location* tll;
2456
2457         if ((tll = transport_loop_location()) != 0) {
2458                 tll->set (location.start(), location.end());
2459
2460                 // enable looping, reposition and start rolling
2461                 session->request_play_loop (true);
2462                 session->request_locate (tll->start(), true);
2463         }
2464 }
2465
2466 void
2467 Editor::raise_region ()
2468 {
2469         selection->foreach_region (&Region::raise);
2470 }
2471
2472 void
2473 Editor::raise_region_to_top ()
2474 {
2475         selection->foreach_region (&Region::raise_to_top);
2476 }
2477
2478 void
2479 Editor::lower_region ()
2480 {
2481         selection->foreach_region (&Region::lower);
2482 }
2483
2484 void
2485 Editor::lower_region_to_bottom ()
2486 {
2487         selection->foreach_region (&Region::lower_to_bottom);
2488 }
2489
2490 void
2491 Editor::edit_region ()
2492 {
2493         if (clicked_regionview == 0) {
2494                 return;
2495         }
2496
2497         clicked_regionview->show_region_editor ();
2498 }
2499
2500 void
2501 Editor::rename_region()
2502 {
2503         RegionSelection rs;
2504
2505         get_regions_for_action (rs);
2506
2507         if (rs.empty()) {
2508                 return;
2509         }
2510
2511         WindowTitle title (Glib::get_application_name());
2512         title += _("Rename Region");
2513
2514         ArdourDialog d (*this, title.get_string(), true, false);
2515         Entry entry;
2516         Label label (_("New name:"));
2517         HBox hbox;
2518
2519         hbox.set_spacing (6);
2520         hbox.pack_start (label, false, false);
2521         hbox.pack_start (entry, true, true);
2522
2523         d.get_vbox()->set_border_width (12);
2524         d.get_vbox()->pack_start (hbox, false, false);
2525
2526         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2527         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2528
2529         d.set_size_request (300, -1);
2530         d.set_position (Gtk::WIN_POS_MOUSE);
2531
2532         entry.set_text (rs.front()->region()->name());
2533         entry.select_region (0, -1);
2534
2535         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2536
2537         d.show_all ();
2538
2539         entry.grab_focus();
2540
2541         int ret = d.run();
2542
2543         d.hide ();
2544
2545         if (ret == RESPONSE_OK) {
2546                 std::string str = entry.get_text();
2547                 strip_whitespace_edges (str);
2548                 if (!str.empty()) {
2549                         rs.front()->region()->set_name (str);
2550                         redisplay_regions ();
2551                 }
2552         }
2553 }
2554
2555 void
2556 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2557 {
2558         if (session->is_auditioning()) {
2559                 session->cancel_audition ();
2560         }
2561
2562         // note: some potential for creativity here, because region doesn't
2563         // have to belong to the playlist that Route is handling
2564
2565         // bool was_soloed = route.soloed();
2566
2567         route.set_solo (true, this);
2568
2569         session->request_bounded_roll (region->position(), region->position() + region->length());
2570
2571         /* XXX how to unset the solo state ? */
2572 }
2573
2574 void
2575 Editor::play_edit_range ()
2576 {
2577         nframes64_t start, end;
2578
2579         if (get_edit_op_range (start, end)) {
2580                 session->request_bounded_roll (start, end);
2581         }
2582 }
2583
2584 void
2585 Editor::play_selected_region ()
2586 {
2587         nframes64_t start = max_frames;
2588         nframes64_t end = 0;
2589         RegionSelection rs;
2590
2591         get_regions_for_action (rs);
2592
2593         if (rs.empty()) {
2594                 return;
2595         }
2596
2597         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2598                 if ((*i)->region()->position() < start) {
2599                         start = (*i)->region()->position();
2600                 }
2601                 if ((*i)->region()->last_frame() + 1 > end) {
2602                         end = (*i)->region()->last_frame() + 1;
2603                 }
2604         }
2605
2606         session->request_stop ();
2607         session->request_bounded_roll (start, end);
2608 }
2609
2610 void
2611 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2612 {
2613         session->audition_region (region);
2614 }
2615
2616 void
2617 Editor::build_interthread_progress_window ()
2618 {
2619         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2620
2621         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2622
2623         interthread_progress_window->set_border_width (12);
2624         interthread_progress_window->get_vbox()->set_spacing (6);
2625
2626         interthread_progress_label.set_alignment (0.5, 0.5);
2627
2628         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2629         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2630
2631         // GTK2FIX: this button needs a modifiable label
2632
2633         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2634         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2635
2636         interthread_cancel_button.add (interthread_cancel_label);
2637
2638         interthread_progress_window->set_default_size (200, 100);
2639 }
2640
2641 void
2642 Editor::interthread_cancel_clicked ()
2643 {
2644         if (current_interthread_info) {
2645                 current_interthread_info->cancel = true;
2646         }
2647 }
2648
2649 void
2650 Editor::region_from_selection ()
2651 {
2652         if (clicked_trackview == 0) {
2653                 return;
2654         }
2655
2656         if (selection->time.empty()) {
2657                 return;
2658         }
2659
2660         nframes64_t start = selection->time[clicked_selection].start;
2661         nframes64_t end = selection->time[clicked_selection].end;
2662
2663         nframes64_t selection_cnt = end - start + 1;
2664
2665         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2666                 boost::shared_ptr<AudioRegion> current;
2667                 boost::shared_ptr<Region> current_r;
2668                 boost::shared_ptr<Playlist> pl;
2669
2670                 nframes64_t internal_start;
2671                 string new_name;
2672
2673                 if ((pl = (*i)->playlist()) == 0) {
2674                         continue;
2675                 }
2676
2677                 if ((current_r = pl->top_region_at (start)) == 0) {
2678                         continue;
2679                 }
2680
2681                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2682                 // FIXME: audio only
2683                 if (current != 0) {
2684                         internal_start = start - current->position();
2685                         session->region_name (new_name, current->name(), true);
2686                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2687                 }
2688         }
2689 }
2690
2691 void
2692 Editor::create_region_from_selection (vector<boost::shared_ptr<AudioRegion> >& new_regions)
2693 {
2694         if (selection->time.empty() || selection->tracks.empty()) {
2695                 return;
2696         }
2697
2698         nframes64_t start = selection->time[clicked_selection].start;
2699         nframes64_t end = selection->time[clicked_selection].end;
2700
2701         sort_track_selection ();
2702
2703         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2704
2705                 boost::shared_ptr<AudioRegion> current;
2706                 boost::shared_ptr<Region> current_r;
2707                 boost::shared_ptr<Playlist> playlist;
2708                 nframes64_t internal_start;
2709                 string new_name;
2710
2711                 if ((playlist = (*i)->playlist()) == 0) {
2712                         continue;
2713                 }
2714
2715                 if ((current_r = playlist->top_region_at(start)) == 0) {
2716                         continue;
2717                 }
2718
2719                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2720                         continue;
2721                 }
2722
2723                 internal_start = start - current->position();
2724                 session->region_name (new_name, current->name(), true);
2725
2726                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2727         }
2728 }
2729
2730 void
2731 Editor::split_multichannel_region ()
2732 {
2733         RegionSelection rs;
2734
2735         get_regions_for_action (rs);
2736
2737         if (rs.empty()) {
2738                 return;
2739         }
2740
2741         vector<boost::shared_ptr<AudioRegion> > v;
2742
2743         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2744
2745                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2746
2747                 if (!arv || arv->audio_region()->n_channels() < 2) {
2748                         continue;
2749                 }
2750
2751                 (arv)->audio_region()->separate_by_channel (*session, v);
2752         }
2753 }
2754
2755 void
2756 Editor::new_region_from_selection ()
2757 {
2758         region_from_selection ();
2759         cancel_selection ();
2760 }
2761
2762 static void
2763 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2764 {
2765         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2766         case OverlapNone:
2767                 break;
2768         default:
2769                 rs->push_back (rv);
2770         }
2771 }
2772
2773 void
2774 Editor::separate_regions_between (const TimeSelection& ts)
2775 {
2776         bool in_command = false;
2777         boost::shared_ptr<Playlist> playlist;
2778         RegionSelection new_selection;
2779         TrackSelection tmptracks;
2780
2781         if (selection->tracks.empty()) {
2782
2783                 /* use tracks with selected regions */
2784
2785                 RegionSelection rs;
2786
2787                 get_regions_for_action (rs);
2788
2789                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2790                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2791
2792                         if (find (tmptracks.begin(), tmptracks.end(), tv) == tmptracks.end()) {
2793                                 tmptracks.push_back (tv);
2794                         }
2795                 }
2796
2797                 if (tmptracks.empty()) {
2798                         /* no regions selected: do nothing */
2799                         return;
2800                 }
2801
2802         } else {
2803
2804                 tmptracks = selection->tracks;
2805
2806         }
2807
2808         sort_track_selection (&tmptracks);
2809
2810         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2811
2812                 AudioTimeAxisView* atv;
2813
2814                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2815
2816                         if (atv->is_audio_track()) {
2817
2818                                 /* no edits to destructive tracks */
2819
2820                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2821                                         continue;
2822                                 }
2823
2824                                 if ((playlist = atv->playlist()) != 0) {
2825
2826
2827                                         XMLNode *before;
2828                                         bool got_some;
2829
2830                                         before = &(playlist->get_state());
2831                                         got_some = false;
2832
2833                                         /* XXX need to consider musical time selections here at some point */
2834
2835                                         double speed = atv->get_diskstream()->speed();
2836
2837
2838                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2839
2840                                                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2841                                                 latest_regionviews.clear ();
2842
2843                                                 playlist->partition ((nframes64_t)((*t).start * speed), (nframes64_t)((*t).end * speed), true);
2844
2845                                                 c.disconnect ();
2846
2847                                                 if (!latest_regionviews.empty()) {
2848
2849                                                         got_some = true;
2850
2851                                                         atv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2852
2853                                                         if (!in_command) {
2854                                                                 begin_reversible_command (_("separate"));
2855                                                                 in_command = true;
2856                                                         }
2857
2858                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2859
2860                                                 }
2861                                         }
2862
2863                                         if (!got_some) {
2864                                                 delete before;
2865                                         }
2866                                 }
2867                         }
2868                 }
2869         }
2870
2871         if (in_command) {
2872                 selection->set (new_selection);
2873                 set_mouse_mode (MouseObject);
2874
2875                 commit_reversible_command ();
2876         }
2877 }
2878
2879 void
2880 Editor::separate_region_from_selection ()
2881 {
2882         /* preferentially use *all* ranges in the time selection if we're in range mode
2883            to allow discontiguous operation, since get_edit_op_range() currently
2884            returns a single range.
2885         */
2886
2887         if (mouse_mode == MouseRange && !selection->time.empty()) {
2888
2889                 separate_regions_between (selection->time);
2890
2891         } else {
2892
2893                 nframes64_t start;
2894                 nframes64_t end;
2895
2896                 if (get_edit_op_range (start, end)) {
2897
2898                         AudioRange ar (start, end, 1);
2899                         TimeSelection ts;
2900                         ts.push_back (ar);
2901
2902                         separate_regions_between (ts);
2903                 }
2904         }
2905 }
2906
2907 void
2908 Editor::separate_region_from_punch ()
2909 {
2910         Location* loc  = session->locations()->auto_punch_location();
2911         if (loc) {
2912                 separate_regions_using_location (*loc);
2913         }
2914 }
2915
2916 void
2917 Editor::separate_region_from_loop ()
2918 {
2919         Location* loc  = session->locations()->auto_loop_location();
2920         if (loc) {
2921                 separate_regions_using_location (*loc);
2922         }
2923 }
2924
2925 void
2926 Editor::separate_regions_using_location (Location& loc)
2927 {
2928         if (loc.is_mark()) {
2929                 return;
2930         }
2931
2932         AudioRange ar (loc.start(), loc.end(), 1);
2933         TimeSelection ts;
2934
2935         ts.push_back (ar);
2936
2937         separate_regions_between (ts);
2938 }
2939
2940 void
2941 Editor::crop_region_to_selection ()
2942 {
2943         if (!selection->time.empty()) {
2944
2945                 crop_region_to (selection->time.start(), selection->time.end_frame());
2946
2947         } else {
2948
2949                 nframes64_t start;
2950                 nframes64_t end;
2951
2952                 if (get_edit_op_range (start, end)) {
2953                         crop_region_to (start, end);
2954                 }
2955         }
2956
2957 }
2958
2959 void
2960 Editor::crop_region_to (nframes64_t start, nframes64_t end)
2961 {
2962         vector<boost::shared_ptr<Playlist> > playlists;
2963         boost::shared_ptr<Playlist> playlist;
2964         TrackSelection* ts;
2965
2966         if (selection->tracks.empty()) {
2967                 ts = &track_views;
2968         } else {
2969                 sort_track_selection ();
2970                 ts = &selection->tracks;
2971         }
2972
2973         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2974
2975                 AudioTimeAxisView* atv;
2976
2977                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2978
2979                         if (atv->is_audio_track()) {
2980
2981                                 /* no edits to destructive tracks */
2982
2983                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2984                                         continue;
2985                                 }
2986
2987                                 if ((playlist = atv->playlist()) != 0) {
2988                                         playlists.push_back (playlist);
2989                                 }
2990                         }
2991                 }
2992         }
2993
2994         if (playlists.empty()) {
2995                 return;
2996         }
2997
2998         nframes64_t the_start;
2999         nframes64_t the_end;
3000         nframes64_t cnt;
3001
3002         begin_reversible_command (_("trim to selection"));
3003
3004         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3005
3006                 boost::shared_ptr<Region> region;
3007
3008                 the_start = start;
3009
3010                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3011                         continue;
3012                 }
3013
3014                 /* now adjust lengths to that we do the right thing
3015                    if the selection extends beyond the region
3016                 */
3017
3018                 the_start = max (the_start, (nframes64_t) region->position());
3019                 if (max_frames - the_start < region->length()) {
3020                         the_end = the_start + region->length() - 1;
3021                 } else {
3022                         the_end = max_frames;
3023                 }
3024                 the_end = min (end, the_end);
3025                 cnt = the_end - the_start + 1;
3026
3027                 XMLNode &before = (*i)->get_state();
3028                 region->trim_to (the_start, cnt, this);
3029                 XMLNode &after = (*i)->get_state();
3030                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3031         }
3032
3033         commit_reversible_command ();
3034 }
3035
3036 void
3037 Editor::region_fill_track ()
3038 {
3039         nframes64_t end;
3040         RegionSelection rs;
3041
3042         get_regions_for_action (rs);
3043
3044         if (!session || rs.empty()) {
3045                 return;
3046         }
3047
3048         end = session->current_end_frame ();
3049
3050         begin_reversible_command (_("region fill"));
3051
3052         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3053
3054                 boost::shared_ptr<Region> region ((*i)->region());
3055
3056                 // FIXME
3057                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3058                 if (!ar)
3059                         continue;
3060
3061                 boost::shared_ptr<Playlist> pl = region->playlist();
3062
3063                 if (end <= region->last_frame()) {
3064                         return;
3065                 }
3066
3067                 double times = (double) (end - region->last_frame()) / (double) region->length();
3068
3069                 if (times == 0) {
3070                         return;
3071                 }
3072
3073                 XMLNode &before = pl->get_state();
3074                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3075                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3076         }
3077
3078         commit_reversible_command ();
3079 }
3080
3081 void
3082 Editor::region_fill_selection ()
3083 {
3084         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3085                 return;
3086         }
3087
3088         if (selection->time.empty()) {
3089                 return;
3090         }
3091
3092
3093         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
3094
3095         if (selected->count_selected_rows() != 1) {
3096                 return;
3097         }
3098
3099         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
3100         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
3101
3102         nframes64_t start = selection->time[clicked_selection].start;
3103         nframes64_t end = selection->time[clicked_selection].end;
3104
3105         boost::shared_ptr<Playlist> playlist;
3106
3107         if (selection->tracks.empty()) {
3108                 return;
3109         }
3110
3111         nframes64_t selection_length = end - start;
3112         float times = (float)selection_length / region->length();
3113
3114         begin_reversible_command (_("fill selection"));
3115
3116         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3117
3118                 if ((playlist = (*i)->playlist()) == 0) {
3119                         continue;
3120                 }
3121
3122                 XMLNode &before = playlist->get_state();
3123                 playlist->add_region (RegionFactory::create (region), start, times);
3124                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3125         }
3126
3127         commit_reversible_command ();
3128 }
3129
3130 void
3131 Editor::set_region_sync_from_edit_point ()
3132 {
3133         nframes64_t where = get_preferred_edit_position ();
3134         RegionSelection rs;
3135         get_regions_for_action (rs);
3136         set_sync_point (where, rs);
3137 }
3138
3139 void
3140 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3141 {
3142         bool in_command = false;
3143
3144         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3145
3146                 if (!(*r)->region()->covers (where)) {
3147                         continue;
3148                 }
3149
3150                 boost::shared_ptr<Region> region ((*r)->region());
3151
3152                 if (!in_command) {
3153                         begin_reversible_command (_("set sync point"));
3154                         in_command = true;
3155                 }
3156
3157                 XMLNode &before = region->playlist()->get_state();
3158                 region->set_sync_position (get_preferred_edit_position());
3159                 XMLNode &after = region->playlist()->get_state();
3160                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3161         }
3162
3163         if (in_command) {
3164                 commit_reversible_command ();
3165         }
3166 }
3167
3168 void
3169 Editor::remove_region_sync ()
3170 {
3171         RegionSelection rs;
3172
3173         get_regions_for_action (rs);
3174
3175         if (rs.empty()) {
3176                 return;
3177         }
3178
3179         begin_reversible_command (_("remove sync"));
3180         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3181
3182                 XMLNode &before = (*i)->region()->playlist()->get_state();
3183                 (*i)->region()->clear_sync_position ();
3184                 XMLNode &after = (*i)->region()->playlist()->get_state();
3185                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3186         }
3187         commit_reversible_command ();
3188 }
3189
3190 void
3191 Editor::naturalize ()
3192 {
3193         RegionSelection rs;
3194
3195         get_regions_for_action (rs);
3196
3197         if (rs.empty()) {
3198                 return;
3199         }
3200
3201         begin_reversible_command (_("naturalize"));
3202         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3203                 XMLNode &before = (*i)->region()->get_state();
3204                 (*i)->region()->move_to_natural_position (this);
3205                 XMLNode &after = (*i)->region()->get_state();
3206                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3207         }
3208         commit_reversible_command ();
3209 }
3210
3211 void
3212 Editor::align (RegionPoint what)
3213 {
3214         RegionSelection rs;
3215
3216         get_regions_for_action (rs);
3217         nframes64_t where = get_preferred_edit_position();
3218
3219         if (!rs.empty()) {
3220                 align_selection (what, where, rs);
3221         } else {
3222
3223                 RegionSelection rs;
3224                 get_regions_at (rs, where, selection->tracks);
3225                 align_selection (what, where, rs);
3226         }
3227 }
3228
3229 void
3230 Editor::align_relative (RegionPoint what)
3231 {
3232         nframes64_t where = get_preferred_edit_position();
3233         RegionSelection rs;
3234
3235         get_regions_for_action (rs);
3236
3237         if (!rs.empty()) {
3238                 align_selection_relative (what, where, rs);
3239         }
3240 }
3241
3242 struct RegionSortByTime {
3243     bool operator() (const AudioRegionView* a, const AudioRegionView* b) {
3244             return a->region()->position() < b->region()->position();
3245     }
3246 };
3247
3248 void
3249 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3250 {
3251         if (rs.empty()) {
3252                 return;
3253         }
3254
3255         nframes64_t distance = 0;
3256         nframes64_t pos = 0;
3257         int dir = 1;
3258
3259         list<RegionView*> sorted;
3260         rs.by_position (sorted);
3261
3262         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3263
3264         switch (point) {
3265         case Start:
3266                 pos = position;
3267                 if (position > r->position()) {
3268                         distance = position - r->position();
3269                 } else {
3270                         distance = r->position() - position;
3271                         dir = -1;
3272                 }
3273                 break;
3274
3275         case End:
3276                 if (position > r->last_frame()) {
3277                         distance = position - r->last_frame();
3278                         pos = r->position() + distance;
3279                 } else {
3280                         distance = r->last_frame() - position;
3281                         pos = r->position() - distance;
3282                         dir = -1;
3283                 }
3284                 break;
3285
3286         case SyncPoint:
3287                 pos = r->adjust_to_sync (position);
3288                 if (pos > r->position()) {
3289                         distance = pos - r->position();
3290                 } else {
3291                         distance = r->position() - pos;
3292                         dir = -1;
3293                 }
3294                 break;
3295         }
3296
3297         if (pos == r->position()) {
3298                 return;
3299         }
3300
3301         begin_reversible_command (_("align selection (relative)"));
3302
3303         /* move first one specially */
3304
3305         XMLNode &before = r->playlist()->get_state();
3306         r->set_position (pos, this);
3307         XMLNode &after = r->playlist()->get_state();
3308         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3309
3310         /* move rest by the same amount */
3311
3312         sorted.pop_front();
3313
3314         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3315
3316                 boost::shared_ptr<Region> region ((*i)->region());
3317
3318                 XMLNode &before = region->playlist()->get_state();
3319
3320                 if (dir > 0) {
3321                         region->set_position (region->position() + distance, this);
3322                 } else {
3323                         region->set_position (region->position() - distance, this);
3324                 }
3325
3326                 XMLNode &after = region->playlist()->get_state();
3327                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3328
3329         }
3330
3331         commit_reversible_command ();
3332 }
3333
3334 void
3335 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3336 {
3337         if (rs.empty()) {
3338                 return;
3339         }
3340
3341         begin_reversible_command (_("align selection"));
3342
3343         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3344                 align_region_internal ((*i)->region(), point, position);
3345         }
3346
3347         commit_reversible_command ();
3348 }
3349
3350 void
3351 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3352 {
3353         begin_reversible_command (_("align region"));
3354         align_region_internal (region, point, position);
3355         commit_reversible_command ();
3356 }
3357
3358 void
3359 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3360 {
3361         XMLNode &before = region->playlist()->get_state();
3362
3363         switch (point) {
3364         case SyncPoint:
3365                 region->set_position (region->adjust_to_sync (position), this);
3366                 break;
3367
3368         case End:
3369                 if (position > region->length()) {
3370                         region->set_position (position - region->length(), this);
3371                 }
3372                 break;
3373
3374         case Start:
3375                 region->set_position (position, this);
3376                 break;
3377         }
3378
3379         XMLNode &after = region->playlist()->get_state();
3380         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3381 }
3382
3383 void
3384 Editor::trim_region_to_loop ()
3385 {
3386         Location* loc = session->locations()->auto_loop_location();
3387         if (!loc) {
3388                 return;
3389         }
3390         trim_region_to_location (*loc, _("trim to loop"));
3391 }
3392
3393 void
3394 Editor::trim_region_to_punch ()
3395 {
3396         Location* loc = session->locations()->auto_punch_location();
3397         if (!loc) {
3398                 return;
3399         }
3400         trim_region_to_location (*loc, _("trim to punch"));
3401 }
3402
3403 void
3404 Editor::trim_region_to_location (const Location& loc, const char* str)
3405 {
3406         RegionSelection rs;
3407
3408         get_regions_for_action (rs);
3409
3410         begin_reversible_command (str);
3411
3412         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3413                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3414
3415                 if (!arv) {
3416                         continue;
3417                 }
3418
3419                 /* require region to span proposed trim */
3420
3421                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3422                 case OverlapInternal:
3423                         break;
3424                 default:
3425                         continue;
3426                 }
3427
3428                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3429
3430                 if (!atav) {
3431                         return;
3432                 }
3433
3434                 float speed = 1.0;
3435                 nframes64_t start;
3436                 nframes64_t end;
3437
3438                 if (atav->get_diskstream() != 0) {
3439                         speed = atav->get_diskstream()->speed();
3440                 }
3441
3442                 start = session_frame_to_track_frame (loc.start(), speed);
3443                 end = session_frame_to_track_frame (loc.end(), speed);
3444
3445                 XMLNode &before = arv->region()->playlist()->get_state();
3446                 arv->region()->trim_to (start, (end - start), this);
3447                 XMLNode &after = arv->region()->playlist()->get_state();
3448                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3449         }
3450
3451         commit_reversible_command ();
3452 }
3453
3454 void
3455 Editor::trim_region_to_edit_point ()
3456 {
3457         RegionSelection rs;
3458
3459         get_regions_for_action (rs);
3460
3461         nframes64_t where = get_preferred_edit_position();
3462
3463         begin_reversible_command (_("trim region start to edit point"));
3464
3465         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3466                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3467
3468                 if (!arv) {
3469                         continue;
3470                 }
3471
3472                 /* require region to cover trim */
3473
3474                 if (!arv->region()->covers (where)) {
3475                         continue;
3476                 }
3477
3478                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3479
3480                 if (!atav) {
3481                         return;
3482                 }
3483
3484                 float speed = 1.0;
3485
3486                 if (atav->get_diskstream() != 0) {
3487                         speed = atav->get_diskstream()->speed();
3488                 }
3489
3490                 XMLNode &before = arv->region()->playlist()->get_state();
3491                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3492                 XMLNode &after = arv->region()->playlist()->get_state();
3493                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3494         }
3495
3496         commit_reversible_command ();
3497 }
3498
3499 void
3500 Editor::trim_region_from_edit_point ()
3501 {
3502         RegionSelection rs;
3503
3504         get_regions_for_action (rs);
3505
3506         nframes64_t where = get_preferred_edit_position();
3507
3508         begin_reversible_command (_("trim region end to edit point"));
3509
3510         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3511                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3512
3513                 if (!arv) {
3514                         continue;
3515                 }
3516
3517                 /* require region to cover trim */
3518
3519                 if (!arv->region()->covers (where)) {
3520                         continue;
3521                 }
3522
3523                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3524
3525                 if (!atav) {
3526                         return;
3527                 }
3528
3529                 float speed = 1.0;
3530
3531                 if (atav->get_diskstream() != 0) {
3532                         speed = atav->get_diskstream()->speed();
3533                 }
3534
3535                 XMLNode &before = arv->region()->playlist()->get_state();
3536                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3537                 XMLNode &after = arv->region()->playlist()->get_state();
3538                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3539         }
3540
3541         commit_reversible_command ();
3542 }
3543
3544 void
3545 Editor::unfreeze_route ()
3546 {
3547         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3548                 return;
3549         }
3550
3551         clicked_audio_trackview->audio_track()->unfreeze ();
3552 }
3553
3554 void*
3555 Editor::_freeze_thread (void* arg)
3556 {
3557         PBD::ThreadCreated (pthread_self(), X_("Freeze"));
3558         return static_cast<Editor*>(arg)->freeze_thread ();
3559 }
3560
3561 void*
3562 Editor::freeze_thread ()
3563 {
3564         clicked_audio_trackview->audio_track()->freeze (*current_interthread_info);
3565         return 0;
3566 }
3567
3568 gint
3569 Editor::freeze_progress_timeout (void *arg)
3570 {
3571         interthread_progress_bar.set_fraction (current_interthread_info->progress/100);
3572         return !(current_interthread_info->done || current_interthread_info->cancel);
3573 }
3574
3575 void
3576 Editor::freeze_route ()
3577 {
3578         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3579                 return;
3580         }
3581
3582         InterThreadInfo itt;
3583
3584         if (interthread_progress_window == 0) {
3585                 build_interthread_progress_window ();
3586         }
3587
3588         WindowTitle title(Glib::get_application_name());
3589         title += _("Freeze");
3590         interthread_progress_window->set_title (title.get_string());
3591         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3592         interthread_progress_window->show_all ();
3593         interthread_progress_bar.set_fraction (0.0f);
3594         interthread_progress_label.set_text ("");
3595         interthread_cancel_label.set_text (_("Cancel Freeze"));
3596         current_interthread_info = &itt;
3597
3598         interthread_progress_connection =
3599           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3600
3601         itt.done = false;
3602         itt.cancel = false;
3603         itt.progress = 0.0f;
3604
3605         pthread_attr_t attr;
3606         pthread_attr_init(&attr);
3607         pthread_attr_setstacksize(&attr, 500000);
3608
3609         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3610
3611         pthread_attr_destroy(&attr);
3612
3613         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3614
3615         while (!itt.done && !itt.cancel) {
3616                 gtk_main_iteration ();
3617         }
3618
3619         interthread_progress_connection.disconnect ();
3620         interthread_progress_window->hide_all ();
3621         current_interthread_info = 0;
3622         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3623 }
3624
3625 void
3626 Editor::bounce_range_selection (bool replace)
3627 {
3628         if (selection->time.empty()) {
3629                 return;
3630         }
3631
3632         TrackSelection views = selection->tracks;
3633
3634         nframes64_t start = selection->time[clicked_selection].start;
3635         nframes64_t end = selection->time[clicked_selection].end;
3636         nframes64_t cnt = end - start + 1;
3637
3638         begin_reversible_command (_("bounce range"));
3639
3640         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3641
3642                 AudioTimeAxisView* atv;
3643
3644                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) == 0) {
3645                         continue;
3646                 }
3647
3648                 boost::shared_ptr<Playlist> playlist;
3649
3650                 if ((playlist = atv->playlist()) == 0) {
3651                         return;
3652                 }
3653
3654                 InterThreadInfo itt;
3655
3656                 itt.done = false;
3657                 itt.cancel = false;
3658                 itt.progress = false;
3659
3660                 XMLNode &before = playlist->get_state();
3661                 boost::shared_ptr<Region> r = atv->audio_track()->bounce_range (start, start+cnt, itt);
3662
3663                 if (replace) {
3664                         list<AudioRange> ranges;
3665                         ranges.push_back (AudioRange (start, start+cnt, 0));
3666                         playlist->cut (ranges); // discard result
3667                         playlist->add_region (r, start);
3668                 }
3669
3670                 XMLNode &after = playlist->get_state();
3671                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3672         }
3673
3674         commit_reversible_command ();
3675 }
3676
3677 void
3678 Editor::cut ()
3679 {
3680         cut_copy (Cut);
3681 }
3682
3683 void
3684 Editor::copy ()
3685 {
3686         cut_copy (Copy);
3687 }
3688
3689 void
3690 Editor::cut_copy (CutCopyOp op)
3691 {
3692         /* only cancel selection if cut/copy is successful.*/
3693
3694         string opname;
3695
3696         switch (op) {
3697         case Cut:
3698                 opname = _("cut");
3699                 break;
3700         case Copy:
3701                 opname = _("copy");
3702                 break;
3703         case Clear:
3704                 opname = _("clear");
3705                 break;
3706         }
3707
3708         /* if we're deleting something, and the mouse is still pressed,
3709            the thing we started a drag for will be gone when we release
3710            the mouse button(s). avoid this. see part 2 at the end of
3711            this function.
3712         */
3713
3714         if (op == Cut || op == Clear) {
3715                 if (drag_info.item) {
3716                         drag_info.item->ungrab (0);
3717                         drag_info.item = 0;
3718                 }
3719         }
3720
3721         cut_buffer->clear ();
3722
3723         if (entered_marker) {
3724
3725                 /* cut/delete op while pointing at a marker */
3726
3727                 bool ignored;
3728                 Location* loc = find_location_from_marker (entered_marker, ignored);
3729
3730                 if (session && loc) {
3731                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3732                 }
3733
3734                 break_drag ();
3735
3736                 return;
3737         }
3738
3739         RegionSelection rs;
3740
3741         /* we only want to cut regions if some are selected */
3742
3743         if (!selection->regions.empty()) {
3744                 get_regions_for_action (rs);
3745         }
3746
3747         switch (current_mouse_mode()) {
3748         case MouseObject:
3749                 if (!rs.empty() || !selection->points.empty()) {
3750
3751                         begin_reversible_command (opname + _(" objects"));
3752
3753                         if (!rs.empty()) {
3754                                 cut_copy_regions (op, rs);
3755
3756                                 if (op == Cut) {
3757                                         selection->clear_regions ();
3758                                 }
3759                         }
3760
3761                         if (!selection->points.empty()) {
3762                                 cut_copy_points (op);
3763
3764                                 if (op == Cut) {
3765                                         selection->clear_points ();
3766                                 }
3767                         }
3768
3769                         commit_reversible_command ();
3770                         break; // terminate case statement here
3771                 }
3772                 if (!selection->time.empty()) {
3773                         /* don't cause suprises */
3774                         break;
3775                 }
3776                 // fall thru if there was nothing selected
3777
3778         case MouseRange:
3779                 if (selection->time.empty()) {
3780                         nframes64_t start, end;
3781                         if (!get_edit_op_range (start, end)) {
3782                                 return;
3783                         }
3784                         selection->set ((TimeAxisView*) 0, start, end);
3785                 }
3786
3787                 begin_reversible_command (opname + _(" range"));
3788                 cut_copy_ranges (op);
3789                 commit_reversible_command ();
3790
3791                 if (op == Cut) {
3792                         selection->clear_time ();
3793                 }
3794
3795                 break;
3796
3797         default:
3798                 break;
3799         }
3800
3801
3802         if (op == Cut || op == Clear) {
3803                 break_drag ();
3804         }
3805 }
3806
3807 void
3808 Editor::cut_copy_points (CutCopyOp op)
3809 {
3810         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3811
3812                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3813
3814                 if (atv) {
3815                         atv->cut_copy_clear_objects (selection->points, op);
3816                 }
3817         }
3818 }
3819
3820 struct PlaylistState {
3821     boost::shared_ptr<Playlist> playlist;
3822     XMLNode*  before;
3823 };
3824
3825 struct lt_playlist {
3826     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3827             return a.playlist < b.playlist;
3828     }
3829 };
3830
3831 struct PlaylistMapping {
3832     TimeAxisView* tv;
3833     boost::shared_ptr<AudioPlaylist> pl;
3834
3835     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3836 };
3837
3838 void
3839 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3840 {
3841         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3842            a map when we want ordered access to both elements. i think.
3843         */
3844
3845         vector<PlaylistMapping> pmap;
3846
3847         nframes64_t first_position = max_frames;
3848
3849         set<PlaylistState, lt_playlist> freezelist;
3850         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3851
3852         /* get ordering correct before we cut/copy */
3853
3854         rs.sort_by_position_and_track ();
3855
3856         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3857
3858                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
3859
3860                 if (op == Cut || op == Clear) {
3861                         boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3862
3863                         if (pl) {
3864
3865                                 PlaylistState before;
3866                                 before.playlist = pl;
3867                                 before.before = &pl->get_state();
3868
3869                                 insert_result = freezelist.insert (before);
3870
3871                                 if (insert_result.second) {
3872                                         pl->freeze ();
3873                                 }
3874                         }
3875                 }
3876
3877                 TimeAxisView* tv = &(*x)->get_trackview();
3878                 vector<PlaylistMapping>::iterator z;
3879
3880                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3881                         if ((*z).tv == tv) {
3882                                 break;
3883                         }
3884                 }
3885
3886                 if (z == pmap.end()) {
3887                         pmap.push_back (PlaylistMapping (tv));
3888                 }
3889         }
3890
3891         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3892
3893                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3894
3895                 if (!pl) {
3896                         /* impossible, but this handles it for the future */
3897                         continue;
3898                 }
3899
3900                 TimeAxisView& tv = (*x)->get_trackview();
3901                 boost::shared_ptr<AudioPlaylist> npl;
3902                 RegionSelection::iterator tmp;
3903
3904                 tmp = x;
3905                 ++tmp;
3906
3907                 vector<PlaylistMapping>::iterator z;
3908
3909                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3910                         if ((*z).tv == &tv) {
3911                                 break;
3912                         }
3913                 }
3914
3915                 assert (z != pmap.end());
3916
3917                 if (!(*z).pl) {
3918                         npl = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (*session, "cutlist", true));
3919                         npl->freeze();
3920                         (*z).pl = npl;
3921                 } else {
3922                         npl = (*z).pl;
3923                 }
3924
3925                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>((*x)->region());
3926                 boost::shared_ptr<Region> _xx;
3927
3928                 switch (op) {
3929                 case Cut:
3930                         if (!ar) break;
3931
3932                         _xx = RegionFactory::create ((*x)->region());
3933                         npl->add_region (_xx, (*x)->region()->position() - first_position);
3934                         pl->remove_region (((*x)->region()));
3935                         break;
3936
3937                 case Copy:
3938                         if (!ar) break;
3939
3940                         /* copy region before adding, so we're not putting same object into two different playlists */
3941                         npl->add_region (RegionFactory::create ((*x)->region()), (*x)->region()->position() - first_position);
3942                         break;
3943
3944                 case Clear:
3945                         pl->remove_region (((*x)->region()));
3946                         break;
3947                 }
3948
3949                 x = tmp;
3950         }
3951
3952         list<boost::shared_ptr<Playlist> > foo;
3953
3954         /* the pmap is in the same order as the tracks in which selected regions occured */
3955
3956         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3957                 (*i).pl->thaw();
3958                 foo.push_back ((*i).pl);
3959         }
3960
3961
3962         if (!foo.empty()) {
3963                 cut_buffer->set (foo);
3964         }
3965
3966         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3967                 (*pl).playlist->thaw ();
3968                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
3969         }
3970 }
3971
3972 void
3973 Editor::cut_copy_ranges (CutCopyOp op)
3974 {
3975         TrackSelection* ts;
3976         TrackSelection entered;
3977
3978         if (selection->tracks.empty()) {
3979                 if (!entered_track) {
3980                         return;
3981                 }
3982                 entered.push_back (entered_track);
3983                 ts = &entered;
3984         } else {
3985                 ts = &selection->tracks;
3986         }
3987
3988         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3989                 (*i)->cut_copy_clear (*selection, op);
3990         }
3991 }
3992
3993 void
3994 Editor::paste (float times)
3995 {
3996         paste_internal (get_preferred_edit_position(), times);
3997 }
3998
3999 void
4000 Editor::mouse_paste ()
4001 {
4002         nframes64_t where;
4003         bool ignored;
4004
4005         if (!mouse_frame (where, ignored)) {
4006                 return;
4007         }
4008
4009         snap_to (where);
4010         paste_internal (where, 1);
4011 }
4012
4013 void
4014 Editor::paste_internal (nframes64_t position, float times)
4015 {
4016         bool commit = false;
4017
4018         if (cut_buffer->empty()) {
4019                 return;
4020         }
4021
4022         if (position == max_frames) {
4023                 position = get_preferred_edit_position();
4024         }
4025
4026         begin_reversible_command (_("paste"));
4027
4028         TrackSelection ts;
4029         TrackSelection::iterator i;
4030         size_t nth;
4031
4032         /* get everything in the correct order */
4033
4034
4035         if (!selection->tracks.empty()) {
4036                 sort_track_selection ();
4037                 ts = selection->tracks;
4038         } else if (entered_track) {
4039                 ts.push_back (entered_track);
4040         }
4041
4042         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4043
4044                 /* undo/redo is handled by individual tracks */
4045
4046                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
4047                         commit = true;
4048                 }
4049         }
4050
4051         if (commit) {
4052                 commit_reversible_command ();
4053         }
4054 }
4055
4056 void
4057 Editor::paste_named_selection (float times)
4058 {
4059         TrackSelection::iterator t;
4060
4061         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4062
4063         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4064                 return;
4065         }
4066
4067         TreeModel::iterator i = selected->get_selected();
4068         NamedSelection* ns = (*i)[named_selection_columns.selection];
4069
4070         list<boost::shared_ptr<Playlist> >::iterator chunk;
4071         list<boost::shared_ptr<Playlist> >::iterator tmp;
4072
4073         chunk = ns->playlists.begin();
4074
4075         begin_reversible_command (_("paste chunk"));
4076
4077         sort_track_selection ();
4078
4079         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4080
4081                 AudioTimeAxisView* atv;
4082                 boost::shared_ptr<Playlist> pl;
4083                 boost::shared_ptr<AudioPlaylist> apl;
4084
4085                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*t)) == 0) {
4086                         continue;
4087                 }
4088
4089                 if ((pl = atv->playlist()) == 0) {
4090                         continue;
4091                 }
4092
4093                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4094                         continue;
4095                 }
4096
4097                 tmp = chunk;
4098                 ++tmp;
4099
4100                 XMLNode &before = apl->get_state();
4101                 apl->paste (*chunk, get_preferred_edit_position(), times);
4102                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4103
4104                 if (tmp != ns->playlists.end()) {
4105                         chunk = tmp;
4106                 }
4107         }
4108
4109         commit_reversible_command();
4110 }
4111
4112 void
4113 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4114 {
4115         boost::shared_ptr<Playlist> playlist;
4116         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4117         RegionSelection foo;
4118
4119         begin_reversible_command (_("duplicate region"));
4120
4121         selection->clear_regions ();
4122
4123         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4124
4125                 boost::shared_ptr<Region> r ((*i)->region());
4126
4127                 TimeAxisView& tv = (*i)->get_time_axis_view();
4128                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (&tv);
4129
4130                 latest_regionviews.clear ();
4131                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4132
4133                 playlist = (*i)->region()->playlist();
4134                 XMLNode &before = playlist->get_state();
4135                 playlist->duplicate (r, r->last_frame() + 1, times);
4136                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4137
4138                 c.disconnect ();
4139
4140                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4141         }
4142
4143         commit_reversible_command ();
4144
4145         if (!foo.empty()) {
4146                 selection->set (foo);
4147         }
4148 }
4149
4150 void
4151 Editor::duplicate_selection (float times)
4152 {
4153         if (selection->time.empty() || selection->tracks.empty()) {
4154                 return;
4155         }
4156
4157         boost::shared_ptr<Playlist> playlist;
4158         vector<boost::shared_ptr<AudioRegion> > new_regions;
4159         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
4160
4161         create_region_from_selection (new_regions);
4162
4163         if (new_regions.empty()) {
4164                 return;
4165         }
4166
4167         begin_reversible_command (_("duplicate selection"));
4168
4169         ri = new_regions.begin();
4170
4171         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4172                 if ((playlist = (*i)->playlist()) == 0) {
4173                         continue;
4174                 }
4175                 XMLNode &before = playlist->get_state();
4176                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4177                 XMLNode &after = playlist->get_state();
4178                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4179
4180                 ++ri;
4181                 if (ri == new_regions.end()) {
4182                         --ri;
4183                 }
4184         }
4185
4186         commit_reversible_command ();
4187 }
4188
4189 void
4190 Editor::reset_point_selection ()
4191 {
4192         /* reset all selected points to the relevant default value */
4193
4194         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4195
4196                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4197
4198                 if (atv) {
4199                         atv->reset_objects (selection->points);
4200                 }
4201         }
4202 }
4203
4204 void
4205 Editor::center_playhead ()
4206 {
4207         float page = canvas_width * frames_per_unit;
4208         center_screen_internal (playhead_cursor->current_frame, page);
4209 }
4210
4211 void
4212 Editor::center_edit_point ()
4213 {
4214         float page = canvas_width * frames_per_unit;
4215         center_screen_internal (get_preferred_edit_position(), page);
4216 }
4217
4218 void
4219 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4220 {
4221         begin_reversible_command (_("clear playlist"));
4222         XMLNode &before = playlist->get_state();
4223         playlist->clear ();
4224         XMLNode &after = playlist->get_state();
4225         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4226         commit_reversible_command ();
4227 }
4228
4229 void
4230 Editor::nudge_track (bool use_edit, bool forwards)
4231 {
4232         boost::shared_ptr<Playlist> playlist;
4233         nframes64_t distance;
4234         nframes64_t next_distance;
4235         nframes64_t start;
4236
4237         if (use_edit) {
4238                 start = get_preferred_edit_position();
4239         } else {
4240                 start = 0;
4241         }
4242
4243         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4244                 return;
4245         }
4246
4247         if (selection->tracks.empty()) {
4248                 return;
4249         }
4250
4251         begin_reversible_command (_("nudge track"));
4252
4253         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4254
4255                 if ((playlist = (*i)->playlist()) == 0) {
4256                         continue;
4257                 }
4258
4259                 XMLNode &before = playlist->get_state();
4260                 playlist->nudge_after (start, distance, forwards);
4261                 XMLNode &after = playlist->get_state();
4262                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4263         }
4264
4265         commit_reversible_command ();
4266 }
4267
4268 void
4269 Editor::remove_last_capture ()
4270 {
4271         vector<string> choices;
4272         string prompt;
4273
4274         if (!session) {
4275                 return;
4276         }
4277
4278         if (Config->get_verify_remove_last_capture()) {
4279                 prompt  = _("Do you really want to destroy the last capture?"
4280                             "\n(This is destructive and cannot be undone)");
4281
4282                 choices.push_back (_("No, do nothing."));
4283                 choices.push_back (_("Yes, destroy it."));
4284
4285                 Gtkmm2ext::Choice prompter (prompt, choices);
4286
4287                 if (prompter.run () == 1) {
4288                         session->remove_last_capture ();
4289                 }
4290
4291         } else {
4292                 session->remove_last_capture();
4293         }
4294 }
4295
4296 void
4297 Editor::normalize_region ()
4298 {
4299         RegionSelection rs;
4300
4301         get_regions_for_action (rs);
4302
4303         if (!session) {
4304                 return;
4305         }
4306
4307         if (rs.empty()) {
4308                 return;
4309         }
4310
4311         begin_reversible_command (_("normalize"));
4312
4313         track_canvas->get_window()->set_cursor (*wait_cursor);
4314         gdk_flush ();
4315
4316         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4317                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4318                 if (!arv)
4319                         continue;
4320                 XMLNode &before = arv->region()->get_state();
4321                 arv->audio_region()->normalize_to (0.0f);
4322                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4323         }
4324
4325         commit_reversible_command ();
4326         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4327 }
4328
4329
4330 void
4331 Editor::denormalize_region ()
4332 {
4333         if (!session) {
4334                 return;
4335         }
4336
4337         RegionSelection rs;
4338
4339         get_regions_for_action (rs);
4340
4341         if (rs.empty()) {
4342                 return;
4343         }
4344
4345         begin_reversible_command ("denormalize");
4346
4347         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4348                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4349                 if (!arv)
4350                         continue;
4351                 XMLNode &before = arv->region()->get_state();
4352                 arv->audio_region()->set_scale_amplitude (1.0f);
4353                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4354         }
4355
4356         commit_reversible_command ();
4357 }
4358
4359 void
4360 Editor::adjust_region_scale_amplitude (bool up)
4361 {
4362         if (!session) {
4363                 return;
4364         }
4365
4366         RegionSelection rs;
4367
4368         get_regions_for_action (rs);
4369
4370         if (rs.empty()) {
4371                 return;
4372         }
4373
4374         begin_reversible_command ("denormalize");
4375
4376         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4377                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4378                 if (!arv)
4379                         continue;
4380                 XMLNode &before = arv->region()->get_state();
4381
4382                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4383
4384                 if (up) {
4385                         fraction += 0.05;
4386                         fraction = min (fraction, 1.0);
4387                 } else {
4388                         fraction -= 0.05;
4389                         fraction = max (fraction, 0.0);
4390                 }
4391
4392                 if (!up && fraction <= 0) {
4393                         continue;
4394                 }
4395
4396                 fraction = slider_position_to_gain (fraction);
4397                 fraction = coefficient_to_dB (fraction);
4398                 fraction = dB_to_coefficient (fraction);
4399
4400                 if (up && fraction >= 2.0) {
4401                         continue;
4402                 }
4403
4404                 arv->audio_region()->set_scale_amplitude (fraction);
4405                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4406         }
4407
4408         commit_reversible_command ();
4409 }
4410
4411
4412 void
4413 Editor::reverse_region ()
4414 {
4415         if (!session) {
4416                 return;
4417         }
4418
4419         Reverse rev (*session);
4420         apply_filter (rev, _("reverse regions"));
4421 }
4422
4423 void
4424 Editor::apply_filter (AudioFilter& filter, string command)
4425 {
4426         RegionSelection rs;
4427
4428         get_regions_for_action (rs);
4429
4430         if (rs.empty()) {
4431                 return;
4432         }
4433
4434         begin_reversible_command (command);
4435
4436         track_canvas->get_window()->set_cursor (*wait_cursor);
4437         gdk_flush ();
4438
4439         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4440                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4441                 if (!arv)
4442                         continue;
4443
4444                 boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4445
4446                 RegionSelection::iterator tmp;
4447
4448                 tmp = r;
4449                 ++tmp;
4450
4451                 if (arv->audio_region()->apply (filter) == 0) {
4452
4453                         XMLNode &before = playlist->get_state();
4454                         playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4455                         XMLNode &after = playlist->get_state();
4456                         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4457                 } else {
4458                         goto out;
4459                 }
4460
4461                 r = tmp;
4462         }
4463
4464         commit_reversible_command ();
4465         rs.clear ();
4466
4467   out:
4468         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4469 }
4470
4471 void
4472 Editor::region_selection_op (void (Region::*pmf)(void))
4473 {
4474         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4475                 Region* region = (*i)->region().get();
4476                 (region->*pmf)();
4477         }
4478 }
4479
4480
4481 void
4482 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4483 {
4484         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4485                 Region* region = (*i)->region().get();
4486                 (region->*pmf)(arg);
4487         }
4488 }
4489
4490 void
4491 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4492 {
4493         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4494                 Region* region = (*i)->region().get();
4495                 (region->*pmf)(yn);
4496         }
4497 }
4498
4499 void
4500 Editor::external_edit_region ()
4501 {
4502         // XXX shouldn't this use get_regions_for_action(rs) too?
4503         if (!clicked_regionview) {
4504                 return;
4505         }
4506
4507         /* more to come */
4508 }
4509
4510 void
4511 Editor::brush (nframes64_t pos)
4512 {
4513         RegionSelection sel;
4514         RegionSelection rs;
4515
4516         get_regions_for_action (rs);
4517
4518         snap_to (pos);
4519
4520         if (rs.empty()) {
4521                 return;
4522         }
4523
4524         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4525                 mouse_brush_insert_region ((*i), pos);
4526         }
4527 }
4528
4529 void
4530 Editor::reset_region_gain_envelopes ()
4531 {
4532         RegionSelection rs;
4533
4534         get_regions_for_action (rs);
4535
4536         if (!session || rs.empty()) {
4537                 return;
4538         }
4539
4540         session->begin_reversible_command (_("reset region gain"));
4541
4542         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4543                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4544                 if (arv) {
4545                         AutomationList& alist (arv->audio_region()->envelope());
4546                         XMLNode& before (alist.get_state());
4547
4548                         arv->audio_region()->set_default_envelope ();
4549                         session->add_command (new MementoCommand<AutomationList>(arv->audio_region()->envelope(), &before, &alist.get_state()));
4550                 }
4551         }
4552
4553         session->commit_reversible_command ();
4554 }
4555
4556 void
4557 Editor::toggle_gain_envelope_visibility ()
4558 {
4559         RegionSelection rs;
4560
4561         get_regions_for_action (rs);
4562
4563         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4564                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4565                 if (arv) {
4566                         arv->set_envelope_visible (!arv->envelope_visible());
4567                 }
4568         }
4569 }
4570
4571 void
4572 Editor::toggle_gain_envelope_active ()
4573 {
4574         RegionSelection rs;
4575
4576         get_regions_for_action (rs);
4577
4578         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4579                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4580                 if (arv) {
4581                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4582                 }
4583         }
4584 }
4585
4586 void
4587 Editor::toggle_region_lock ()
4588 {
4589         RegionSelection rs;
4590
4591         get_regions_for_action (rs);
4592
4593         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4594                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4595                 if (arv) {
4596                         arv->audio_region()->set_locked (!arv->audio_region()->locked());
4597                 }
4598         }
4599 }
4600
4601 void
4602 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4603 {
4604         RegionSelection rs;
4605
4606         get_regions_for_action (rs);
4607
4608         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4609                 (*i)->region()->set_position_lock_style (ps);
4610         }
4611 }
4612
4613
4614 void
4615 Editor::toggle_region_mute ()
4616 {
4617         RegionSelection rs;
4618
4619         get_regions_for_action (rs);
4620
4621         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4622                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4623                 if (arv) {
4624                         arv->audio_region()->set_muted (!arv->audio_region()->muted());
4625                 }
4626         }
4627 }
4628
4629 void
4630 Editor::toggle_region_opaque ()
4631 {
4632         RegionSelection rs;
4633
4634         get_regions_for_action (rs);
4635
4636         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4637                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4638                 if (arv) {
4639                         arv->audio_region()->set_opaque (!arv->audio_region()->opaque());
4640                 }
4641         }
4642 }
4643
4644 void
4645 Editor::set_fade_length (bool in)
4646 {
4647         RegionSelection rs;
4648
4649         get_regions_for_action (rs);
4650
4651         /* we need a region to measure the offset from the start */
4652
4653         RegionView* rv;
4654
4655         if (!rs.empty()) {
4656                 rv = rs.front();
4657         } else if (entered_regionview) {
4658                 rv = entered_regionview;
4659         } else {
4660                 return;
4661         }
4662
4663         nframes64_t pos = get_preferred_edit_position();
4664         nframes64_t len;
4665         char* cmd;
4666
4667         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4668                 /* edit point is outside the relevant region */
4669                 return;
4670         }
4671
4672         if (in) {
4673                 if (pos <= rv->region()->position()) {
4674                         /* can't do it */
4675                         return;
4676                 }
4677                 len = pos - rv->region()->position();
4678                 cmd = _("set fade in length");
4679         } else {
4680                 if (pos >= rv->region()->last_frame()) {
4681                         /* can't do it */
4682                         return;
4683                 }
4684                 len = rv->region()->last_frame() - pos;
4685                 cmd = _("set fade out length");
4686         }
4687
4688         begin_reversible_command (cmd);
4689
4690         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4691                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4692
4693                 if (!tmp) {
4694                         return;
4695                 }
4696
4697                 AutomationList* alist;
4698                 if (in) {
4699                         alist = &tmp->audio_region()->fade_in();
4700                 } else {
4701                         alist = &tmp->audio_region()->fade_out();
4702                 }
4703
4704                 XMLNode &before = alist->get_state();
4705
4706                 if (in) {
4707                         tmp->audio_region()->set_fade_in_length (len);
4708                         tmp->audio_region()->set_fade_in_active (true);
4709                 } else {
4710                         tmp->audio_region()->set_fade_out_length (len);
4711                         tmp->audio_region()->set_fade_out_active (true);
4712                 }
4713
4714                 XMLNode &after = alist->get_state();
4715                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4716         }
4717
4718         commit_reversible_command ();
4719 }
4720
4721
4722 void
4723 Editor::toggle_fade_active (bool in)
4724 {
4725         RegionSelection rs;
4726
4727         get_regions_for_action (rs);
4728
4729         if (rs.empty()) {
4730                 return;
4731         }
4732
4733         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4734         bool have_switch = false;
4735         bool yn = false;
4736
4737         begin_reversible_command (cmd);
4738
4739         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4740                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4741
4742                 if (!tmp) {
4743                         return;
4744                 }
4745
4746                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4747
4748                 /* make the behaviour consistent across all regions */
4749
4750                 if (!have_switch) {
4751                         if (in) {
4752                                 yn = region->fade_in_active();
4753                         } else {
4754                                 yn = region->fade_out_active();
4755                         }
4756                         have_switch = true;
4757                 }
4758
4759                 XMLNode &before = region->get_state();
4760                 if (in) {
4761                         region->set_fade_in_active (!yn);
4762                 } else {
4763                         region->set_fade_out_active (!yn);
4764                 }
4765                 XMLNode &after = region->get_state();
4766                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4767         }
4768
4769         commit_reversible_command ();
4770 }
4771
4772 void
4773 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4774 {
4775         RegionSelection rs;
4776
4777         get_regions_for_action (rs);
4778
4779         if (rs.empty()) {
4780                 return;
4781         }
4782
4783         begin_reversible_command (_("set fade in shape"));
4784
4785         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4786                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4787
4788                 if (!tmp) {
4789                         return;
4790                 }
4791
4792                 AutomationList& alist = tmp->audio_region()->fade_in();
4793                 XMLNode &before = alist.get_state();
4794
4795                 tmp->audio_region()->set_fade_in_shape (shape);
4796
4797                 XMLNode &after = alist.get_state();
4798                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4799         }
4800
4801         commit_reversible_command ();
4802
4803 }
4804
4805 void
4806 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4807 {
4808         RegionSelection rs;
4809
4810         get_regions_for_action (rs);
4811
4812         if (rs.empty()) {
4813                 return;
4814         }
4815
4816         begin_reversible_command (_("set fade out shape"));
4817
4818         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4819                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4820
4821                 if (!tmp) {
4822                         return;
4823                 }
4824
4825                 AutomationList& alist = tmp->audio_region()->fade_out();
4826                 XMLNode &before = alist.get_state();
4827
4828                 tmp->audio_region()->set_fade_out_shape (shape);
4829
4830                 XMLNode &after = alist.get_state();
4831                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4832         }
4833
4834         commit_reversible_command ();
4835 }
4836
4837 void
4838 Editor::set_fade_in_active (bool yn)
4839 {
4840         RegionSelection rs;
4841
4842         get_regions_for_action (rs);
4843
4844         if (rs.empty()) {
4845                 return;
4846         }
4847
4848         begin_reversible_command (_("set fade in active"));
4849
4850         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4851                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4852
4853                 if (!tmp) {
4854                         return;
4855                 }
4856
4857
4858                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4859
4860                 XMLNode &before = ar->get_state();
4861
4862                 ar->set_fade_in_active (yn);
4863
4864                 XMLNode &after = ar->get_state();
4865                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4866         }
4867
4868         commit_reversible_command ();
4869 }
4870
4871 void
4872 Editor::set_fade_out_active (bool yn)
4873 {
4874         RegionSelection rs;
4875
4876         get_regions_for_action (rs);
4877
4878         if (rs.empty()) {
4879                 return;
4880         }
4881
4882         begin_reversible_command (_("set fade out active"));
4883
4884         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4885                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4886
4887                 if (!tmp) {
4888                         return;
4889                 }
4890
4891                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4892
4893                 XMLNode &before = ar->get_state();
4894
4895                 ar->set_fade_out_active (yn);
4896
4897                 XMLNode &after = ar->get_state();
4898                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4899         }
4900
4901         commit_reversible_command ();
4902 }
4903
4904 void
4905 Editor::toggle_selected_region_fades (int dir)
4906 {
4907         RegionSelection rs;
4908         RegionSelection::iterator i;
4909         boost::shared_ptr<AudioRegion> ar;
4910         bool yn;
4911
4912         get_regions_for_action (rs);
4913
4914         if (rs.empty()) {
4915                 return;
4916         }
4917
4918         for (i = rs.begin(); i != rs.end(); ++i) {
4919                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
4920                         if (dir == -1) {
4921                                 yn = ar->fade_out_active ();
4922                         } else {
4923                                 yn = ar->fade_in_active ();
4924                         }
4925                         break;
4926                 }
4927         }
4928
4929         if (i == rs.end()) {
4930                 return;
4931         }
4932
4933         /* XXX should this undo-able? */
4934
4935         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4936                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
4937                         continue;
4938                 }
4939                 if (dir == 1 || dir == 0) {
4940                         ar->set_fade_in_active (!yn);
4941                 }
4942
4943                 if (dir == -1 || dir == 0) {
4944                         ar->set_fade_out_active (!yn);
4945                 }
4946         }
4947 }
4948
4949
4950 /** Update region fade visibility after its configuration has been changed */
4951 void
4952 Editor::update_region_fade_visibility ()
4953 {
4954         bool _fade_visibility = Config->get_show_region_fades ();
4955
4956         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4957                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4958                 if (v) {
4959                         if (_fade_visibility) {
4960                                 v->audio_view()->show_all_fades ();
4961                         } else {
4962                                 v->audio_view()->hide_all_fades ();
4963                         }
4964                 }
4965         }
4966 }
4967
4968 /** Update crossfade visibility after its configuration has been changed */
4969 void
4970 Editor::update_xfade_visibility ()
4971 {
4972         _xfade_visibility = Config->get_xfades_visible ();
4973
4974         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4975                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4976                 if (v) {
4977                         if (_xfade_visibility) {
4978                                 v->show_all_xfades ();
4979                         } else {
4980                                 v->hide_all_xfades ();
4981                         }
4982                 }
4983         }
4984 }
4985
4986 void
4987 Editor::set_edit_point ()
4988 {
4989         nframes64_t where;
4990         bool ignored;
4991
4992         if (!mouse_frame (where, ignored)) {
4993                 return;
4994         }
4995
4996         snap_to (where);
4997
4998         if (selection->markers.empty()) {
4999
5000                 mouse_add_new_marker (where);
5001
5002         } else {
5003                 bool ignored;
5004
5005                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5006
5007                 if (loc) {
5008                         loc->move_to (where);
5009                 }
5010         }
5011 }
5012
5013 void
5014 Editor::set_playhead_cursor ()
5015 {
5016         if (entered_marker) {
5017                 session->request_locate (entered_marker->position(), session->transport_rolling());
5018         } else {
5019                 nframes64_t where;
5020                 bool ignored;
5021
5022                 if (!mouse_frame (where, ignored)) {
5023                         return;
5024                 }
5025
5026                 snap_to (where);
5027
5028                 if (session) {
5029                         session->request_locate (where, session->transport_rolling());
5030                 }
5031         }
5032 }
5033
5034 void
5035 Editor::split ()
5036 {
5037         RegionSelection rs;
5038
5039         get_regions_for_action (rs);
5040
5041         nframes64_t where = get_preferred_edit_position();
5042
5043         if (rs.empty()) {
5044                 return;
5045         }
5046
5047         split_regions_at (where, rs);
5048 }
5049
5050 void
5051 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5052 {
5053         if (entered_track && mouse_mode == MouseObject) {
5054                 if (!selection->tracks.empty()) {
5055                         if (!selection->selected (entered_track)) {
5056                                 selection->add (entered_track);
5057                         }
5058                 } else {
5059                         /* there is no selection, but this operation requires/prefers selected objects */
5060
5061                         if (op_really_wants_one_track_if_none_are_selected) {
5062                                 selection->set (entered_track);
5063                         }
5064                 }
5065         }
5066 }
5067
5068 void
5069 Editor::trim_region_front ()
5070 {
5071         trim_region (true);
5072 }
5073
5074 void
5075 Editor::trim_region_back ()
5076 {
5077         trim_region (false);
5078 }
5079
5080 void
5081 Editor::trim_region (bool front)
5082 {
5083         nframes64_t where = get_preferred_edit_position();
5084         RegionSelection rs;
5085
5086         get_regions_for_action (rs);
5087
5088         if (rs.empty()) {
5089                 return;
5090         }
5091
5092         begin_reversible_command (front ? _("trim front") : _("trim back"));
5093
5094         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
5095                 if (!(*i)->region()->locked()) {
5096                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
5097                         XMLNode &before = pl->get_state();
5098                         if (front) {
5099                                 (*i)->region()->trim_front (where, this);
5100                         } else {
5101                                 (*i)->region()->trim_end (where, this);
5102                         }
5103                         XMLNode &after = pl->get_state();
5104                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
5105                 }
5106         }
5107
5108         commit_reversible_command ();
5109 }
5110
5111 struct EditorOrderRouteSorter {
5112     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5113             /* use of ">" forces the correct sort order */
5114             return a->order_key ("editor") < b->order_key ("editor");
5115     }
5116 };
5117
5118 void
5119 Editor::select_next_route()
5120 {
5121         if (selection->tracks.empty()) {
5122                 selection->set (track_views.front());
5123                 return;
5124         }
5125
5126         TimeAxisView* current = selection->tracks.front();
5127
5128         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5129                 if (*i == current) {
5130                         ++i;
5131                         if (i != track_views.end()) {
5132                                 selection->set (*i);
5133                         } else {
5134                                 selection->set (*(track_views.begin()));
5135                         }
5136                         break;
5137                 }
5138         }
5139 }
5140
5141 void
5142 Editor::select_prev_route()
5143 {
5144         if (selection->tracks.empty()) {
5145                 selection->set (track_views.front());
5146                 return;
5147         }
5148
5149         TimeAxisView* current = selection->tracks.front();
5150
5151         for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5152                 if (*i == current) {
5153                         ++i;
5154                         if (i != track_views.rend()) {
5155                                 selection->set (*i);
5156                         } else {
5157                                 selection->set (*(track_views.rbegin()));
5158                         }
5159                         break;
5160                 }
5161         }
5162 }
5163
5164 void
5165 Editor::set_loop_from_selection (bool play)
5166 {
5167         if (session == 0 || selection->time.empty()) {
5168                 return;
5169         }
5170
5171         nframes64_t start = selection->time[clicked_selection].start;
5172         nframes64_t end = selection->time[clicked_selection].end;
5173
5174         set_loop_range (start, end,  _("set loop range from selection"));
5175
5176         if (play) {
5177                 session->request_play_loop (true);
5178                 session->request_locate (start, true);
5179         }
5180 }
5181
5182 void
5183 Editor::set_loop_from_edit_range (bool play)
5184 {
5185         if (session == 0) {
5186                 return;
5187         }
5188
5189         nframes64_t start;
5190         nframes64_t end;
5191
5192         if (!get_edit_op_range (start, end)) {
5193                 return;
5194         }
5195
5196         set_loop_range (start, end,  _("set loop range from edit range"));
5197
5198         if (play) {
5199                 session->request_play_loop (true);
5200                 session->request_locate (start, true);
5201         }
5202 }
5203
5204 void
5205 Editor::set_loop_from_region (bool play)
5206 {
5207         nframes64_t start = max_frames;
5208         nframes64_t end = 0;
5209
5210         RegionSelection rs;
5211
5212         get_regions_for_action (rs);
5213
5214         if (rs.empty()) {
5215                 return;
5216         }
5217
5218         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5219                 if ((*i)->region()->position() < start) {
5220                         start = (*i)->region()->position();
5221                 }
5222                 if ((*i)->region()->last_frame() + 1 > end) {
5223                         end = (*i)->region()->last_frame() + 1;
5224                 }
5225         }
5226
5227         set_loop_range (start, end, _("set loop range from region"));
5228
5229         if (play) {
5230                 session->request_play_loop (true);
5231                 session->request_locate (start, true);
5232         }
5233 }
5234
5235 void
5236 Editor::set_punch_from_selection ()
5237 {
5238         if (session == 0 || selection->time.empty()) {
5239                 return;
5240         }
5241
5242         nframes64_t start = selection->time[clicked_selection].start;
5243         nframes64_t end = selection->time[clicked_selection].end;
5244
5245         set_punch_range (start, end,  _("set punch range from selection"));
5246 }
5247
5248 void
5249 Editor::set_punch_from_edit_range ()
5250 {
5251         if (session == 0) {
5252                 return;
5253         }
5254
5255         nframes64_t start;
5256         nframes64_t end;
5257
5258         if (!get_edit_op_range (start, end)) {
5259                 return;
5260         }
5261
5262         set_punch_range (start, end,  _("set punch range from edit range"));
5263 }
5264
5265 void
5266 Editor::set_punch_from_region ()
5267 {
5268         nframes64_t start = max_frames;
5269         nframes64_t end = 0;
5270
5271         RegionSelection rs;
5272
5273         get_regions_for_action (rs);
5274
5275         if (rs.empty()) {
5276                 return;
5277         }
5278
5279         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5280                 if ((*i)->region()->position() < start) {
5281                         start = (*i)->region()->position();
5282                 }
5283                 if ((*i)->region()->last_frame() + 1 > end) {
5284                         end = (*i)->region()->last_frame() + 1;
5285                 }
5286         }
5287
5288         set_punch_range (start, end, _("set punch range from region"));
5289 }
5290
5291 void
5292 Editor::pitch_shift_regions ()
5293 {
5294         RegionSelection rs;
5295
5296         get_regions_for_action (rs);
5297
5298         if (rs.empty()) {
5299                 return;
5300         }
5301
5302         pitch_shift (rs, 1.2);
5303 }
5304
5305 void
5306 Editor::use_region_as_bar ()
5307 {
5308         if (!session) {
5309                 return;
5310         }
5311
5312         RegionSelection rs;
5313
5314         get_regions_for_action (rs);
5315
5316         if (rs.empty()) {
5317                 return;
5318         }
5319
5320         RegionView* rv = rs.front();
5321
5322         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5323 }
5324
5325 void
5326 Editor::use_range_as_bar ()
5327 {
5328         nframes64_t start, end;
5329         if (get_edit_op_range (start, end)) {
5330                 define_one_bar (start, end);
5331         }
5332 }
5333
5334 void
5335 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5336 {
5337         nframes64_t length = end - start;
5338
5339         const Meter& m (session->tempo_map().meter_at (start));
5340
5341         /* length = 1 bar */
5342
5343         /* now we want frames per beat.
5344            we have frames per bar, and beats per bar, so ...
5345         */
5346
5347         double frames_per_beat = length / m.beats_per_bar();
5348
5349         /* beats per minute = */
5350
5351         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5352
5353         /* now decide whether to:
5354
5355             (a) set global tempo
5356             (b) add a new tempo marker
5357
5358         */
5359
5360         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5361
5362         bool do_global = false;
5363
5364         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5365
5366                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5367                    at the start, or create a new marker
5368                 */
5369
5370                 vector<string> options;
5371                 options.push_back (_("Cancel"));
5372                 options.push_back (_("Add new marker"));
5373                 options.push_back (_("Set global tempo"));
5374                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5375                           options);
5376                 c.set_default_response (2);
5377
5378                 switch (c.run()) {
5379                 case 0:
5380                         return;
5381
5382                 case 2:
5383                         do_global = true;
5384                         break;
5385
5386                 default:
5387                         do_global = false;
5388                 }
5389
5390         } else {
5391
5392                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5393                    if the marker is at the region starter, change it, otherwise add
5394                    a new tempo marker
5395                 */
5396         }
5397
5398         begin_reversible_command (_("set tempo from region"));
5399         XMLNode& before (session->tempo_map().get_state());
5400
5401         if (do_global) {
5402                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5403         } else if (t.frame() == start) {
5404                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5405         } else {
5406                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5407         }
5408
5409         XMLNode& after (session->tempo_map().get_state());
5410
5411         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5412         commit_reversible_command ();
5413 }
5414
5415 void
5416 Editor::split_region_at_transients ()
5417 {
5418         AnalysisFeatureList positions;
5419
5420         if (!session) {
5421                 return;
5422         }
5423
5424         RegionSelection rs;
5425
5426         get_regions_for_action (rs);
5427
5428         if (rs.empty()) {
5429                 return;
5430         }
5431
5432         session->begin_reversible_command (_("split regions"));
5433
5434         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5435
5436                 RegionSelection::iterator tmp;
5437
5438                 tmp = i;
5439                 ++tmp;
5440
5441                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5442
5443                 if (ar && (ar->get_transients (positions) == 0)) {
5444                         split_region_at_points ((*i)->region(), positions, true);
5445                         positions.clear ();
5446                 }
5447
5448                 i = tmp;
5449         }
5450
5451         session->commit_reversible_command ();
5452
5453 }
5454
5455 void
5456 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5457 {
5458         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
5459         bool use_rhythmic_rodent = false;
5460
5461         if (!ar) {
5462                 return;
5463         }
5464
5465         boost::shared_ptr<Playlist> pl = ar->playlist();
5466
5467         if (!pl) {
5468                 return;
5469         }
5470
5471         if (positions.empty()) {
5472                 return;
5473         }
5474
5475
5476         if (positions.size() > 20) {
5477                 Glib::ustring msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), ar->name(), positions.size() + 1);
5478                 MessageDialog msg (msgstr,
5479                                    false,
5480                                    Gtk::MESSAGE_INFO,
5481                                    Gtk::BUTTONS_OK_CANCEL);
5482
5483                 if (can_ferret) {
5484                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5485                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5486                 } else {
5487                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5488                 }
5489
5490                 msg.set_title (_("Excessive split?"));
5491                 msg.present ();
5492
5493                 int response = msg.run();
5494                 msg.hide ();
5495                 switch (response) {
5496                 case RESPONSE_OK:
5497                         break;
5498                 case RESPONSE_APPLY:
5499                         use_rhythmic_rodent = true;
5500                         break;
5501                 default:
5502                         return;
5503                 }
5504         }
5505
5506         if (use_rhythmic_rodent) {
5507                 show_rhythm_ferret ();
5508                 return;
5509         }
5510
5511         AnalysisFeatureList::const_iterator x;
5512
5513         nframes64_t pos = ar->position();
5514
5515         XMLNode& before (pl->get_state());
5516
5517         x = positions.begin();
5518
5519         while (x != positions.end()) {
5520                 if ((*x) > pos) {
5521                         break;
5522                 }
5523                 ++x;
5524         }
5525
5526         if (x == positions.end()) {
5527                 return;
5528         }
5529
5530         pl->freeze ();
5531         pl->remove_region (ar);
5532
5533         while (x != positions.end()) {
5534
5535                 /* file start = original start + how far we from the initial position ?
5536                  */
5537
5538                 nframes64_t file_start = ar->start() + (pos - ar->position());
5539
5540                 /* length = next position - current position
5541                  */
5542
5543                 nframes64_t len = (*x) - pos;
5544
5545                 /* XXX we do we really want to allow even single-sample regions?
5546                    shouldn't we have some kind of lower limit on region size?
5547                 */
5548
5549                 if (len <= 0) {
5550                         break;
5551                 }
5552
5553                 string new_name;
5554
5555                 if (session->region_name (new_name, ar->name())) {
5556                         break;
5557                 }
5558
5559                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5560
5561                 boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5562                 pl->add_region (r, pos);
5563
5564                 pos += len;
5565                 ++x;
5566
5567                 if (*x > ar->last_frame()) {
5568
5569                         /* add final fragment */
5570
5571                         file_start = ar->start() + (pos - ar->position());
5572                         len = ar->last_frame() - pos;
5573
5574                         boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5575                         pl->add_region (r, pos);
5576
5577                         break;
5578                 }
5579         }
5580
5581         pl->thaw ();
5582
5583         XMLNode& after (pl->get_state());
5584
5585         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
5586 }
5587
5588 void
5589 Editor::tab_to_transient (bool forward)
5590 {
5591         AnalysisFeatureList positions;
5592
5593         if (!session) {
5594                 return;
5595         }
5596
5597         nframes64_t pos = session->audible_frame ();
5598
5599         if (!selection->tracks.empty()) {
5600
5601                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5602
5603                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5604
5605                         if (rtv) {
5606                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
5607                                 if (ds) {
5608                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
5609                                         if (pl) {
5610                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5611
5612                                                 if (result >= 0) {
5613                                                         positions.push_back (result);
5614                                                 }
5615                                         }
5616                                 }
5617                         }
5618                 }
5619
5620         } else {
5621
5622                 RegionSelection rs;
5623
5624                 get_regions_for_action (rs);
5625
5626                 if (rs.empty()) {
5627                         return;
5628                 }
5629
5630                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5631                         (*r)->region()->get_transients (positions);
5632                 }
5633         }
5634
5635         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
5636
5637         if (forward) {
5638                 AnalysisFeatureList::iterator x;
5639
5640                 for (x = positions.begin(); x != positions.end(); ++x) {
5641                         if ((*x) > pos) {
5642                                 break;
5643                         }
5644                 }
5645
5646                 if (x != positions.end ()) {
5647                         session->request_locate (*x);
5648                 }
5649
5650         } else {
5651                 AnalysisFeatureList::reverse_iterator x;
5652
5653                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
5654                         if ((*x) < pos) {
5655                                 break;
5656                         }
5657                 }
5658
5659                 if (x != positions.rend ()) {
5660                         session->request_locate (*x);
5661                 }
5662         }
5663 }
5664
5665 void
5666 Editor::playhead_forward_to_grid ()
5667 {
5668         if (!session) return;
5669         nframes64_t pos = playhead_cursor->current_frame;
5670         if (pos < max_frames - 1) {
5671                 pos += 2;
5672                 snap_to_internal (pos, 1, false);
5673                 session->request_locate (pos);
5674         }
5675 }
5676
5677
5678 void
5679 Editor::playhead_backward_to_grid ()
5680 {
5681         if (!session) return;
5682         nframes64_t pos = playhead_cursor->current_frame;
5683         if (pos > 2) {
5684                 pos -= 2;
5685                 snap_to_internal (pos, -1, false);
5686                 session->request_locate (pos);
5687         }
5688 }
5689
5690 void
5691 Editor::set_track_height (uint32_t h)
5692 {
5693         TrackSelection& ts (selection->tracks);
5694
5695         if (ts.empty()) {
5696                 return;
5697         }
5698
5699         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5700                 (*x)->set_height (h);
5701         }
5702 }
5703
5704 void
5705 Editor::set_track_height_largest ()
5706 {
5707         set_track_height (TimeAxisView::hLargest);
5708 }
5709 void
5710 Editor::set_track_height_large ()
5711 {
5712         set_track_height (TimeAxisView::hLarge);
5713 }
5714 void
5715 Editor::set_track_height_larger ()
5716 {
5717         set_track_height (TimeAxisView::hLarger);
5718 }
5719 void
5720 Editor::set_track_height_normal ()
5721 {
5722         set_track_height (TimeAxisView::hNormal);
5723 }
5724 void
5725 Editor::set_track_height_smaller ()
5726 {
5727         set_track_height (TimeAxisView::hSmaller);
5728 }
5729 void
5730 Editor::set_track_height_small ()
5731 {
5732         set_track_height (TimeAxisView::hSmall);
5733 }
5734
5735 void
5736 Editor::toggle_tracks_active ()
5737 {
5738         TrackSelection& ts (selection->tracks);
5739         bool first = true;
5740         bool target = false;
5741
5742         if (ts.empty()) {
5743                 return;
5744         }
5745
5746         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5747                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
5748
5749                 if (rtv) {
5750                         if (first) {
5751                                 target = !rtv->_route->active();
5752                                 first = false;
5753                         }
5754                         rtv->_route->set_active (target);
5755                 }
5756         }
5757 }
5758
5759 void
5760 Editor::remove_tracks ()
5761 {
5762         TrackSelection& ts (selection->tracks);
5763
5764         if (ts.empty()) {
5765                 return;
5766         }
5767
5768         vector<string> choices;
5769         string prompt;
5770         int ntracks = 0;
5771         int nbusses = 0;
5772         const char* trackstr;
5773         const char* busstr;
5774         vector<boost::shared_ptr<Route> > routes;
5775
5776         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5777                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
5778                 if (rtv) {
5779                         if (rtv->is_track()) {
5780                                 ntracks++;
5781                         } else {
5782                                 nbusses++;
5783                         }
5784                 }
5785                 routes.push_back (rtv->_route);
5786         }
5787
5788         if (ntracks + nbusses == 0) {
5789                 return;
5790         }
5791
5792         if (ntracks > 1) {
5793                 trackstr = _("tracks");
5794         } else {
5795                 trackstr = _("track");
5796         }
5797
5798         if (nbusses > 1) {
5799                 busstr = _("busses");
5800         } else {
5801                 busstr = _("bus");
5802         }
5803
5804         if (ntracks) {
5805                 if (nbusses) {
5806                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
5807                                                     "(You may also lose the playlists associated with the %2)\n\n"
5808                                                     "This action cannot be undone!"),
5809                                                   ntracks, trackstr, nbusses, busstr);
5810                 } else {
5811                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
5812                                                     "(You may also lose the playlists associated with the %2)\n\n"
5813                                                     "This action cannot be undone!"),
5814                                                   ntracks, trackstr);
5815                 }
5816         } else if (nbusses) {
5817                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
5818                                           nbusses, busstr);
5819         }
5820
5821         choices.push_back (_("No, do nothing."));
5822         if (ntracks + nbusses > 1) {
5823                 choices.push_back (_("Yes, remove them."));
5824         } else {
5825                 choices.push_back (_("Yes, remove it."));
5826         }
5827
5828         Choice prompter (prompt, choices);
5829
5830         if (prompter.run () != 1) {
5831                 return;
5832         }
5833
5834         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
5835                 session->remove_route (*x);
5836         }
5837 }
5838
5839 void
5840 Editor::set_waveform_scale (WaveformScale ws)
5841 {
5842         TrackSelection& ts (selection->tracks);
5843
5844         if (ts.empty()) {
5845                 return;
5846         }
5847
5848         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5849                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (*x);
5850                 if (atv) {
5851                         atv->set_waveform_scale (ws);
5852                 }
5853         }
5854 }
5855
5856 void
5857 Editor::do_insert_time ()
5858 {
5859         if (selection->tracks.empty()) {
5860                 return;
5861         }
5862
5863         nframes64_t pos = get_preferred_edit_position ();
5864         ArdourDialog d (*this, _("Insert Time"));
5865         VButtonBox button_box;
5866         VBox option_box;
5867         RadioButtonGroup group;
5868         RadioButton leave_button (group, _("Stay in position"));
5869         RadioButton move_button (group, _("Move"));
5870         RadioButton split_button (group, _("Split & Later Section Moves"));
5871         Label intersect_option_label (_("Intersected regions should:"));
5872         CheckButton glue_button (_("Move Glued Regions"));
5873         CheckButton marker_button (_("Move Markers"));
5874         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
5875         HBox clock_box;
5876
5877         clock.set (0);
5878         clock.set_session (session);
5879         clock.set_bbt_reference (pos);
5880
5881         clock_box.pack_start (clock, false, true);
5882
5883         option_box.set_spacing (6);
5884         option_box.pack_start (intersect_option_label, false, false);
5885         option_box.pack_start (button_box, false, false);
5886         option_box.pack_start (glue_button, false, false);
5887         option_box.pack_start (marker_button, false, false);
5888
5889         button_box.pack_start (leave_button, false, false);
5890         button_box.pack_start (move_button, false, false);
5891         button_box.pack_start (split_button, false, false);
5892
5893         d.get_vbox()->set_border_width (12);
5894         d.get_vbox()->pack_start (clock_box, false, false);
5895         d.get_vbox()->pack_start (option_box, false, false);
5896
5897         leave_button.show ();
5898         move_button.show ();
5899         split_button.show ();
5900         intersect_option_label.show ();
5901         option_box.show ();
5902         button_box.show ();
5903         glue_button.show ();
5904         clock.show_all();
5905         clock_box.show ();
5906         marker_button.show ();
5907
5908         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
5909         d.add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
5910         d.show ();
5911
5912         int response = d.run ();
5913
5914         if (response != RESPONSE_OK) {
5915                 return;
5916         }
5917
5918         nframes64_t distance = clock.current_duration (pos);
5919
5920         if (distance == 0) {
5921                 return;
5922         }
5923
5924         InsertTimeOption opt;
5925
5926         if (leave_button.get_active()) {
5927                 opt = LeaveIntersected;
5928         } else if (move_button.get_active()) {
5929                 opt = MoveIntersected;
5930         } else {
5931                 opt = SplitIntersected;
5932         }
5933
5934         insert_time (pos, distance, opt, glue_button.get_active(), marker_button.get_active());
5935 }
5936
5937 void
5938 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
5939                      bool ignore_music_glue, bool markers_too)
5940 {
5941         bool commit = false;
5942
5943         if (Config->get_edit_mode() == Lock) {
5944                 return;
5945         }
5946
5947         begin_reversible_command (_("insert time"));
5948
5949         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
5950                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
5951
5952                 if (!pl) {
5953                         continue;
5954                 }
5955
5956                 XMLNode &before = pl->get_state();
5957
5958                 if (opt == SplitIntersected) {
5959                         pl->split (pos);
5960                 }
5961
5962                 pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
5963
5964                 XMLNode &after = pl->get_state();
5965
5966                 session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
5967                 commit = true;
5968         }
5969
5970         if (markers_too) {
5971                 bool moved = false;
5972                 XMLNode& before (session->locations()->get_state());
5973                 Locations::LocationList copy (session->locations()->list());
5974
5975                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
5976
5977                         Locations::LocationList::const_iterator tmp;
5978
5979                         if ((*i)->start() >= pos) {
5980                                 (*i)->set_start ((*i)->start() + frames);
5981                                 if (!(*i)->is_mark()) {
5982                                         (*i)->set_end ((*i)->end() + frames);
5983                                 }
5984                                 moved = true;
5985                         }
5986                 }
5987
5988                 if (moved) {
5989                         XMLNode& after (session->locations()->get_state());
5990                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
5991                 }
5992         }
5993
5994         if (commit) {
5995                 commit_reversible_command ();
5996         }
5997 }
5998
5999 void
6000 Editor::fit_tracks ()
6001 {
6002         if (selection->tracks.empty()) {
6003                 return;
6004         }
6005
6006         uint32_t child_heights = 0;
6007
6008         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6009
6010                 if (!(*t)->marked_for_display()) {
6011                         continue;
6012                 }
6013
6014                 child_heights += ((*t)->effective_height - (*t)->current_height());
6015         }
6016
6017         uint32_t h = (uint32_t) floor ((canvas_height - child_heights - canvas_timebars_vsize)/selection->tracks.size());
6018         double first_y_pos = DBL_MAX;
6019
6020         if (h < TimeAxisView::hSmall) {
6021                 MessageDialog msg (*this, _("There are too many selected tracks to fit in the current window"));
6022                 /* too small to be displayed */
6023                 return;
6024         }
6025
6026         undo_visual_stack.push_back (current_visual_state());
6027
6028         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6029
6030         bool prev_was_selected = false;
6031         bool is_selected = selection->selected (track_views.front());
6032         bool next_is_selected;
6033
6034         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6035
6036                 TrackViewList::iterator next;
6037
6038                 next = t;
6039                 ++next;
6040
6041                 if (next != track_views.end()) {
6042                         next_is_selected = selection->selected (*next);
6043                 } else {
6044                         next_is_selected = false;
6045                 }
6046
6047                 if (is_selected) {
6048                         (*t)->set_height (h);
6049                         first_y_pos = std::min ((*t)->y_position, first_y_pos);
6050                 } else {
6051                         if (prev_was_selected && next_is_selected) {
6052                                 hide_track_in_display (**t);
6053                         }
6054                 }
6055
6056                 prev_was_selected = is_selected;
6057                 is_selected = next_is_selected;
6058         }
6059
6060         /*
6061            set the controls_layout height now, because waiting for its size
6062            request signal handler will cause the vertical adjustment setting to fail
6063         */
6064
6065         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6066         vertical_adjustment.set_value (first_y_pos);
6067
6068         redo_visual_stack.push_back (current_visual_state());
6069 }
6070
6071 void
6072 Editor::save_visual_state (uint32_t n)
6073 {
6074         while (visual_states.size() <= n) {
6075                 visual_states.push_back (0);
6076         }
6077
6078         if (visual_states[n] != 0) {
6079                 delete visual_states[n];
6080         }
6081
6082         visual_states[n] = current_visual_state (true);
6083         gdk_beep ();
6084 }
6085
6086 void
6087 Editor::goto_visual_state (uint32_t n)
6088 {
6089         if (visual_states.size() <= n) {
6090                 return;
6091         }
6092
6093         if (visual_states[n] == 0) {
6094                 return;
6095         }
6096
6097         use_visual_state (*visual_states[n]);
6098 }
6099
6100 void
6101 Editor::start_visual_state_op (uint32_t n)
6102 {
6103         cerr << "Start\n";
6104         if (visual_state_op_connection.empty()) {
6105                 cerr << "\tqueue\n";
6106                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6107         }
6108 }
6109
6110 void
6111 Editor::cancel_visual_state_op (uint32_t n)
6112 {
6113         cerr << "Cancel\n";
6114         if (!visual_state_op_connection.empty()) {
6115                 cerr << "\tgoto\n";
6116                 visual_state_op_connection.disconnect();
6117                 goto_visual_state (n);
6118         }
6119 }
6120
6121 bool
6122 Editor::end_visual_state_op (uint32_t n)
6123 {
6124         visual_state_op_connection.disconnect();
6125         save_visual_state (n);
6126
6127         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6128         char buf[32];
6129         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6130         pup->set_text (buf);
6131         pup->touch();
6132
6133         return false; // do not call again
6134 }
6135