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 #include <ardour/audioengine.h>
  40 #include <ardour/session.h>
  41 #include <ardour/audioplaylist.h>
  42 #include <ardour/audioregion.h>
  43 #include <ardour/audio_diskstream.h>
  44 #include <ardour/utils.h>
  45 #include <ardour/location.h>
  46 #include <ardour/named_selection.h>
  47 #include <ardour/audio_track.h>
  48 #include <ardour/audiofilesource.h>
  49 #include <ardour/audioplaylist.h>
  50 #include <ardour/region_factory.h>
  51 #include <ardour/playlist_factory.h>
  52 #include <ardour/reverse.h>
  53 #include <ardour/transient_detector.h>
  54 #include <ardour/dB.h>
  55
  56 #include "ardour_ui.h"
  57 #include "editor.h"
  58 #include "time_axis_view.h"
  59 #include "route_time_axis.h"
  60 #include "audio_time_axis.h"
  61 #include "automation_time_axis.h"
  62 #include "streamview.h"
  63 #include "audio_streamview.h"
  64 #include "audio_region_view.h"
  65 #include "rgb_macros.h"
  66 #include "selection_templates.h"
  67 #include "selection.h"
  68 #include "editing.h"
  69 #include "gtk-custom-hruler.h"
  70 #include "gui_thread.h"
  71 #include "keyboard.h"
  72 #include "utils.h"
  73
  74 #include "i18n.h"
  75
  76 using namespace std;
  77 using namespace ARDOUR;
  78 using namespace PBD;
  79 using namespace sigc;
  80 using namespace Gtk;
  81 using namespace Gtkmm2ext;
  82 using namespace Editing;
  83
  84 /***********************************************************************
  85   Editor operations
  86  ***********************************************************************/
  87
  88 void
  89 Editor::undo (uint32_t n)
  90 {
  91         if (session) {
  92                 session->undo (n);
  93         }
  94 }
  95
  96 void
  97 Editor::redo (uint32_t n)
  98 {
  99         if (session) {
 100                 session->redo (n);
 101         }
 102 }
 103
 104 void
 105 Editor::split_region ()
 106 {
 107         split_region_at (get_preferred_edit_position());
 108 }
 109
 110 void
 111 Editor::split_region_at (nframes64_t where)
 112 {
 113         RegionSelection rs;
 114
 115         get_regions_for_action (rs);
 116         split_regions_at (where, selection->regions);
 117 }
 118
 119 void
 120 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 121 {
 122         if (regions.empty()) {
 123                 return;
 124         }
 125
 126         begin_reversible_command (_("split"));
 127
 128         // if splitting a single region, and snap-to is using
 129         // region boundaries, don't pay attention to them
 130
 131         if (regions.size() == 1) {
 132                 switch (snap_type) {
 133                 case SnapToRegionStart:
 134                 case SnapToRegionSync:
 135                 case SnapToRegionEnd:
 136                         break;
 137                 default:
 138                         snap_to (where);
 139                 }
 140         } else {
 141                 snap_to (where);
 142         }
 143
 144         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 145
 146                 RegionSelection::iterator tmp;
 147
 148                 /* XXX this test needs to be more complicated, to make sure we really
 149                    have something to split.
 150                 */
 151
 152                 if (!(*a)->region()->covers (where)) {
 153                         ++a;
 154                         continue;
 155                 }
 156
 157                 tmp = a;
 158                 ++tmp;
 159
 160                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 161
 162                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 163
 164                 if (arv) {
 165                         _new_regionviews_show_envelope = arv->envelope_visible();
 166                 }
 167
 168                 if (pl) {
 169                         XMLNode &before = pl->get_state();
 170                         pl->split_region ((*a)->region(), where);
 171                         XMLNode &after = pl->get_state();
 172                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 173                 }
 174
 175                 a = tmp;
 176         }
 177
 178         commit_reversible_command ();
 179         _new_regionviews_show_envelope = false;
 180 }
 181
 182 void
 183 Editor::remove_clicked_region ()
 184 {
 185         if (clicked_audio_trackview == 0 || clicked_regionview == 0) {
 186                 return;
 187         }
 188
 189         boost::shared_ptr<Playlist> playlist = clicked_audio_trackview->playlist();
 190
 191         begin_reversible_command (_("remove region"));
 192         XMLNode &before = playlist->get_state();
 193         playlist->remove_region (clicked_regionview->region());
 194         XMLNode &after = playlist->get_state();
 195         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 196         commit_reversible_command ();
 197 }
 198
 199 void
 200 Editor::remove_region ()
 201 {
 202
 203         RegionSelection rs;
 204         get_regions_for_action (rs);
 205
 206         if (!session) {
 207                 return;
 208         }
 209
 210         if (rs.empty()) {
 211                 return;
 212         }
 213
 214         begin_reversible_command (_("remove region"));
 215
 216         list<boost::shared_ptr<Region> > regions_to_remove;
 217
 218         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 219                 // we can't just remove the region(s) in this loop because
 220                 // this removes them from the RegionSelection, and they thus
 221                 // disappear from underneath the iterator, and the ++i above
 222                 // SEGVs in a puzzling fashion.
 223
 224                 // so, first iterate over the regions to be removed from rs and
 225                 // add them to the regions_to_remove list, and then
 226                 // iterate over the list to actually remove them.
 227
 228                 regions_to_remove.push_back ((*i)->region());
 229         }
 230
 231         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
 232                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
 233                 if (!playlist) {
 234                         // is this check necessary?
 235                         continue;
 236                 }
 237
 238                 XMLNode &before = playlist->get_state();
 239                 playlist->remove_region (*rl);
 240                 XMLNode &after = playlist->get_state();
 241                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 242         }
 243         commit_reversible_command ();
 244 }
 245
 246 boost::shared_ptr<Region>
 247 Editor::select_region_for_operation (int dir, TimeAxisView **tv)
 248 {
 249         RegionView* rv;
 250         boost::shared_ptr<Region> region;
 251         nframes64_t start = 0;
 252
 253         if (selection->time.start () == selection->time.end_frame ()) {
 254
 255                 /* no current selection-> is there a selected regionview? */
 256
 257                 if (selection->regions.empty()) {
 258                         return region;
 259                 }
 260
 261         }
 262
 263         if (!selection->regions.empty()) {
 264
 265                 rv = *(selection->regions.begin());
 266                 (*tv) = &rv->get_time_axis_view();
 267                 region = rv->region();
 268
 269         } else if (!selection->tracks.empty()) {
 270
 271                 (*tv) = selection->tracks.front();
 272
 273                 RouteTimeAxisView* rtv;
 274
 275                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 276                         boost::shared_ptr<Playlist> pl;
 277
 278                         if ((pl = rtv->playlist()) == 0) {
 279                                 return region;
 280                         }
 281
 282                         region = pl->top_region_at (start);
 283                 }
 284         }
 285
 286         return region;
 287 }
 288
 289 void
 290 Editor::extend_selection_to_end_of_region (bool next)
 291 {
 292         TimeAxisView *tv;
 293         boost::shared_ptr<Region> region;
 294         nframes64_t start;
 295
 296         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 297                 return;
 298         }
 299
 300         if (region && selection->time.start () == selection->time.end_frame ()) {
 301                 start = region->position();
 302         } else {
 303                 start = selection->time.start ();
 304         }
 305
 306         /* Try to leave the selection with the same route if possible */
 307
 308         if ((tv = selection->time.track) == 0) {
 309                 return;
 310         }
 311
 312         begin_reversible_command (_("extend selection"));
 313         selection->set (tv, start, region->position() + region->length());
 314         commit_reversible_command ();
 315 }
 316
 317 void
 318 Editor::extend_selection_to_start_of_region (bool previous)
 319 {
 320         TimeAxisView *tv;
 321         boost::shared_ptr<Region> region;
 322         nframes64_t end;
 323
 324         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 325                 return;
 326         }
 327
 328         if (region && selection->time.start () == selection->time.end_frame ()) {
 329                 end = region->position() + region->length();
 330         } else {
 331                 end = selection->time.end_frame ();
 332         }
 333
 334         /* Try to leave the selection with the same route if possible */
 335
 336         if ((tv = selection->time.track) == 0) {
 337                 return;
 338         }
 339
 340         begin_reversible_command (_("extend selection"));
 341         selection->set (tv, region->position(), end);
 342         commit_reversible_command ();
 343 }
 344
 345 bool
 346 Editor::nudge_forward_release (GdkEventButton* ev)
 347 {
 348         if (ev->state & Keyboard::PrimaryModifier) {
 349                 nudge_forward (false, true);
 350         } else {
 351                 nudge_forward (false, false);
 352         }
 353         return false;
 354 }
 355
 356 bool
 357 Editor::nudge_backward_release (GdkEventButton* ev)
 358 {
 359         if (ev->state & Keyboard::PrimaryModifier) {
 360                 nudge_backward (false, true);
 361         } else {
 362                 nudge_backward (false, false);
 363         }
 364         return false;
 365 }
 366
 367
 368 void
 369 Editor::nudge_forward (bool next, bool force_playhead)
 370 {
 371         nframes64_t distance;
 372         nframes64_t next_distance;
 373         RegionSelection rs;
 374
 375         get_regions_for_action (rs);
 376
 377         if (!session) return;
 378
 379         if (!force_playhead && !rs.empty()) {
 380
 381                 begin_reversible_command (_("nudge regions forward"));
 382
 383                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 384                         boost::shared_ptr<Region> r ((*i)->region());
 385
 386                         distance = get_nudge_distance (r->position(), next_distance);
 387
 388                         if (next) {
 389                                 distance = next_distance;
 390                         }
 391
 392                         XMLNode &before = r->playlist()->get_state();
 393                         r->set_position (r->position() + distance, this);
 394                         XMLNode &after = r->playlist()->get_state();
 395                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 396                 }
 397
 398                 commit_reversible_command ();
 399
 400
 401         } else if (!force_playhead && !selection->markers.empty()) {
 402
 403                 bool is_start;
 404
 405                 begin_reversible_command (_("nudge location forward"));
 406
 407                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 408
 409                         Location* loc = find_location_from_marker ((*i), is_start);
 410
 411                         if (loc) {
 412
 413                                 XMLNode& before (loc->get_state());
 414
 415                                 if (is_start) {
 416                                         distance = get_nudge_distance (loc->start(), next_distance);
 417                                         if (next) {
 418                                                 distance = next_distance;
 419                                         }
 420                                         if (max_frames - distance > loc->start() + loc->length()) {
 421                                                 loc->set_start (loc->start() + distance);
 422                                         } else {
 423                                                 loc->set_start (max_frames - loc->length());
 424                                         }
 425                                 } else {
 426                                         distance = get_nudge_distance (loc->end(), next_distance);
 427                                         if (next) {
 428                                                 distance = next_distance;
 429                                         }
 430                                         if (max_frames - distance > loc->end()) {
 431                                                 loc->set_end (loc->end() + distance);
 432                                         } else {
 433                                                 loc->set_end (max_frames);
 434                                         }
 435                                 }
 436                                 XMLNode& after (loc->get_state());
 437                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 438                         }
 439                 }
 440
 441                 commit_reversible_command ();
 442
 443         } else {
 444                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 445                 session->request_locate (playhead_cursor->current_frame + distance);
 446         }
 447 }
 448
 449 void
 450 Editor::nudge_backward (bool next, bool force_playhead)
 451 {
 452         nframes64_t distance;
 453         nframes64_t next_distance;
 454         RegionSelection rs;
 455
 456         get_regions_for_action (rs);
 457
 458         if (!session) return;
 459
 460         if (!force_playhead && !rs.empty()) {
 461
 462                 begin_reversible_command (_("nudge regions backward"));
 463
 464                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 465                         boost::shared_ptr<Region> r ((*i)->region());
 466
 467                         distance = get_nudge_distance (r->position(), next_distance);
 468
 469                         if (next) {
 470                                 distance = next_distance;
 471                         }
 472
 473                         XMLNode &before = r->playlist()->get_state();
 474
 475                         if (r->position() > distance) {
 476                                 r->set_position (r->position() - distance, this);
 477                         } else {
 478                                 r->set_position (0, this);
 479                         }
 480                         XMLNode &after = r->playlist()->get_state();
 481                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 482                 }
 483
 484                 commit_reversible_command ();
 485
 486         } else if (!force_playhead && !selection->markers.empty()) {
 487
 488                 bool is_start;
 489
 490                 begin_reversible_command (_("nudge location forward"));
 491
 492                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 493
 494                         Location* loc = find_location_from_marker ((*i), is_start);
 495
 496                         if (loc) {
 497
 498                                 XMLNode& before (loc->get_state());
 499
 500                                 if (is_start) {
 501                                         distance = get_nudge_distance (loc->start(), next_distance);
 502                                         if (next) {
 503                                                 distance = next_distance;
 504                                         }
 505                                         if (distance < loc->start()) {
 506                                                 loc->set_start (loc->start() - distance);
 507                                         } else {
 508                                                 loc->set_start (0);
 509                                         }
 510                                 } else {
 511                                         distance = get_nudge_distance (loc->end(), next_distance);
 512
 513                                         if (next) {
 514                                                 distance = next_distance;
 515                                         }
 516
 517                                         if (distance < loc->end() - loc->length()) {
 518                                                 loc->set_end (loc->end() - distance);
 519                                         } else {
 520                                                 loc->set_end (loc->length());
 521                                         }
 522                                 }
 523
 524                                 XMLNode& after (loc->get_state());
 525                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 526                         }
 527                 }
 528
 529                 commit_reversible_command ();
 530
 531         } else {
 532
 533                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 534
 535                 if (playhead_cursor->current_frame > distance) {
 536                         session->request_locate (playhead_cursor->current_frame - distance);
 537                 } else {
 538                         session->goto_start();
 539                 }
 540         }
 541 }
 542
 543 void
 544 Editor::nudge_forward_capture_offset ()
 545 {
 546         nframes64_t distance;
 547         RegionSelection rs;
 548
 549         get_regions_for_action (rs);
 550
 551         if (!session) return;
 552
 553         if (!rs.empty()) {
 554
 555                 begin_reversible_command (_("nudge forward"));
 556
 557                 distance = session->worst_output_latency();
 558
 559                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 560                         boost::shared_ptr<Region> r ((*i)->region());
 561
 562                         XMLNode &before = r->playlist()->get_state();
 563                         r->set_position (r->position() + distance, this);
 564                         XMLNode &after = r->playlist()->get_state();
 565                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 566                 }
 567
 568                 commit_reversible_command ();
 569
 570         }
 571 }
 572
 573 void
 574 Editor::nudge_backward_capture_offset ()
 575 {
 576         nframes64_t distance;
 577         RegionSelection rs;
 578
 579         get_regions_for_action (rs);
 580
 581         if (!session) return;
 582
 583         if (!rs.empty()) {
 584
 585                 begin_reversible_command (_("nudge forward"));
 586
 587                 distance = session->worst_output_latency();
 588
 589                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 590                         boost::shared_ptr<Region> r ((*i)->region());
 591
 592                         XMLNode &before = r->playlist()->get_state();
 593
 594                         if (r->position() > distance) {
 595                                 r->set_position (r->position() - distance, this);
 596                         } else {
 597                                 r->set_position (0, this);
 598                         }
 599                         XMLNode &after = r->playlist()->get_state();
 600                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 601                 }
 602
 603                 commit_reversible_command ();
 604         }
 605 }
 606
 607 /* DISPLAY MOTION */
 608
 609 void
 610 Editor::move_to_start ()
 611 {
 612         session->goto_start ();
 613 }
 614
 615 void
 616 Editor::move_to_end ()
 617 {
 618
 619         session->request_locate (session->current_end_frame());
 620 }
 621
 622 void
 623 Editor::build_region_boundary_cache ()
 624 {
 625         nframes64_t pos = 0;
 626         vector<RegionPoint> interesting_points;
 627         boost::shared_ptr<Region> r;
 628         TrackViewList tracks;
 629         bool at_end = false;
 630
 631         region_boundary_cache.clear ();
 632
 633         if (session == 0) {
 634                 return;
 635         }
 636
 637         switch (snap_type) {
 638         case SnapToRegionStart:
 639                 interesting_points.push_back (Start);
 640                 break;
 641         case SnapToRegionEnd:
 642                 interesting_points.push_back (End);
 643                 break;
 644         case SnapToRegionSync:
 645                 interesting_points.push_back (SyncPoint);
 646                 break;
 647         case SnapToRegionBoundary:
 648                 interesting_points.push_back (Start);
 649                 interesting_points.push_back (End);
 650                 break;
 651         default:
 652                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 653                 /*NOTREACHED*/
 654                 return;
 655         }
 656
 657         TimeAxisView *ontrack = 0;
 658         TrackViewList tlist;
 659
 660         if (!selection->tracks.empty()) {
 661                 tlist = selection->tracks;
 662         } else {
 663                 tlist = track_views;
 664         }
 665
 666         while (pos < session->current_end_frame() && !at_end) {
 667
 668                 nframes64_t rpos;
 669                 nframes64_t lpos = max_frames;
 670
 671                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 672
 673                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 674                                 if (*p == interesting_points.back()) {
 675                                         at_end = true;
 676                                 }
 677                                 /* move to next point type */
 678                                 continue;
 679                         }
 680
 681                         switch (*p) {
 682                         case Start:
 683                                 rpos = r->first_frame();
 684                                 break;
 685
 686                         case End:
 687                                 rpos = r->last_frame();
 688                                 break;
 689
 690                         case SyncPoint:
 691                                 rpos = r->adjust_to_sync (r->first_frame());
 692                                 break;
 693
 694                         default:
 695                                 break;
 696                         }
 697
 698                         float speed = 1.0f;
 699                         AudioTimeAxisView *atav;
 700
 701                         if (ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 702                                 if (atav->get_diskstream() != 0) {
 703                                         speed = atav->get_diskstream()->speed();
 704                                 }
 705                         }
 706
 707                         rpos = track_frame_to_session_frame (rpos, speed);
 708
 709                         if (rpos < lpos) {
 710                                 lpos = rpos;
 711                         }
 712
 713                         /* prevent duplicates, but we don't use set<> because we want to be able
 714                            to sort later.
 715                         */
 716
 717                         vector<nframes64_t>::iterator ri;
 718
 719                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 720                                 if (*ri == rpos) {
 721                                         break;
 722                                 }
 723                         }
 724
 725                         if (ri == region_boundary_cache.end()) {
 726                                 region_boundary_cache.push_back (rpos);
 727                         }
 728                 }
 729
 730                 pos = lpos + 1;
 731         }
 732
 733         /* finally sort to be sure that the order is correct */
 734
 735         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 736 }
 737
 738 boost::shared_ptr<Region>
 739 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 740 {
 741         TrackViewList::iterator i;
 742         nframes64_t closest = max_frames;
 743         boost::shared_ptr<Region> ret;
 744         nframes64_t rpos = 0;
 745
 746         float track_speed;
 747         nframes64_t track_frame;
 748         AudioTimeAxisView *atav;
 749
 750         for (i = tracks.begin(); i != tracks.end(); ++i) {
 751
 752                 nframes64_t distance;
 753                 boost::shared_ptr<Region> r;
 754
 755                 track_speed = 1.0f;
 756                 if ( (atav = dynamic_cast<AudioTimeAxisView*>(*i)) != 0 ) {
 757                         if (atav->get_diskstream()!=0)
 758                                 track_speed = atav->get_diskstream()->speed();
 759                 }
 760
 761                 track_frame = session_frame_to_track_frame(frame, track_speed);
 762
 763                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 764                         continue;
 765                 }
 766
 767                 switch (point) {
 768                 case Start:
 769                         rpos = r->first_frame ();
 770                         break;
 771
 772                 case End:
 773                         rpos = r->last_frame ();
 774                         break;
 775
 776                 case SyncPoint:
 777                         rpos = r->adjust_to_sync (r->first_frame());
 778                         break;
 779                 }
 780
 781                 // rpos is a "track frame", converting it to "session frame"
 782                 rpos = track_frame_to_session_frame(rpos, track_speed);
 783
 784                 if (rpos > frame) {
 785                         distance = rpos - frame;
 786                 } else {
 787                         distance = frame - rpos;
 788                 }
 789
 790                 if (distance < closest) {
 791                         closest = distance;
 792                         if (ontrack != 0)
 793                                 *ontrack = (*i);
 794                         ret = r;
 795                 }
 796         }
 797
 798         return ret;
 799 }
 800
 801 nframes64_t
 802 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 803 {
 804         nframes64_t distance = max_frames;
 805         nframes64_t current_nearest = -1;
 806
 807
 808         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 809                 nframes64_t contender;
 810                 nframes64_t d;
 811
 812                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 813
 814                 if (!rtv) {
 815                         continue;
 816                 }
 817
 818                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 819                         continue;
 820                 }
 821
 822                 d = ::llabs (pos - contender);
 823
 824                 if (d < distance) {
 825                         current_nearest = contender;
 826                         distance = d;
 827                 }
 828         }
 829
 830         return current_nearest;
 831 }
 832
 833 nframes64_t
 834 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 835 {
 836         nframes64_t target;
 837         TrackViewList tvl;
 838
 839         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 840
 841                 if (!selection->tracks.empty()) {
 842
 843                         target = find_next_region_boundary (pos, dir, selection->tracks);
 844
 845                 } else {
 846
 847                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 848                                 get_onscreen_tracks (tvl);
 849                                 target = find_next_region_boundary (pos, dir, tvl);
 850                         } else {
 851                                 target = find_next_region_boundary (pos, dir, track_views);
 852                         }
 853                 }
 854
 855         } else {
 856
 857                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 858                         get_onscreen_tracks (tvl);
 859                         target = find_next_region_boundary (pos, dir, tvl);
 860                 } else {
 861                         target = find_next_region_boundary (pos, dir, track_views);
 862                 }
 863         }
 864
 865         return target;
 866 }
 867
 868 void
 869 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 870 {
 871         nframes64_t pos = playhead_cursor->current_frame;
 872         nframes64_t target;
 873
 874         if (!session) {
 875                 return;
 876         }
 877
 878         // so we don't find the current region again..
 879         if (dir > 0 || pos > 0) {
 880                 pos += dir;
 881         }
 882
 883         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 884                 return;
 885         }
 886
 887
 888         session->request_locate (target);
 889 }
 890
 891 void
 892 Editor::cursor_to_next_region_boundary (bool with_selection)
 893 {
 894         cursor_to_region_boundary (with_selection, 1);
 895 }
 896
 897 void
 898 Editor::cursor_to_previous_region_boundary (bool with_selection)
 899 {
 900         cursor_to_region_boundary (with_selection, -1);
 901 }
 902
 903 void
 904 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 905 {
 906         boost::shared_ptr<Region> r;
 907         nframes64_t pos = cursor->current_frame;
 908
 909         if (!session) {
 910                 return;
 911         }
 912
 913         TimeAxisView *ontrack = 0;
 914
 915         // so we don't find the current region again..
 916         if (dir>0 || pos>0)
 917                 pos+=dir;
 918
 919         if (!selection->tracks.empty()) {
 920
 921                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 922
 923         } else if (clicked_trackview) {
 924
 925                 TrackViewList t;
 926                 t.push_back (clicked_trackview);
 927
 928                 r = find_next_region (pos, point, dir, t, &ontrack);
 929
 930         } else {
 931
 932                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 933         }
 934
 935         if (r == 0) {
 936                 return;
 937         }
 938
 939         switch (point){
 940         case Start:
 941                 pos = r->first_frame ();
 942                 break;
 943
 944         case End:
 945                 pos = r->last_frame ();
 946                 break;
 947
 948         case SyncPoint:
 949                 pos = r->adjust_to_sync (r->first_frame());
 950                 break;
 951         }
 952
 953         float speed = 1.0f;
 954         AudioTimeAxisView *atav;
 955
 956         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 957                 if (atav->get_diskstream() != 0) {
 958                         speed = atav->get_diskstream()->speed();
 959                 }
 960         }
 961
 962         pos = track_frame_to_session_frame(pos, speed);
 963
 964         if (cursor == playhead_cursor) {
 965                 session->request_locate (pos);
 966         } else {
 967                 cursor->set_position (pos);
 968         }
 969 }
 970
 971 void
 972 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 973 {
 974         cursor_to_region_point (cursor, point, 1);
 975 }
 976
 977 void
 978 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 979 {
 980         cursor_to_region_point (cursor, point, -1);
 981 }
 982
 983 void
 984 Editor::cursor_to_selection_start (Cursor *cursor)
 985 {
 986         nframes64_t pos = 0;
 987         RegionSelection rs;
 988
 989         get_regions_for_action (rs);
 990
 991         switch (mouse_mode) {
 992         case MouseObject:
 993                 if (!rs.empty()) {
 994                         pos = rs.start();
 995                 }
 996                 break;
 997
 998         case MouseRange:
 999                 if (!selection->time.empty()) {
1000                         pos = selection->time.start ();
1001                 }
1002                 break;
1003
1004         default:
1005                 return;
1006         }
1007
1008         if (cursor == playhead_cursor) {
1009                 session->request_locate (pos);
1010         } else {
1011                 cursor->set_position (pos);
1012         }
1013 }
1014
1015 void
1016 Editor::cursor_to_selection_end (Cursor *cursor)
1017 {
1018         nframes64_t pos = 0;
1019         RegionSelection rs;
1020
1021         get_regions_for_action (rs);
1022
1023         switch (mouse_mode) {
1024         case MouseObject:
1025                 if (!rs.empty()) {
1026                         pos = rs.end_frame();
1027                 }
1028                 break;
1029
1030         case MouseRange:
1031                 if (!selection->time.empty()) {
1032                         pos = selection->time.end_frame ();
1033                 }
1034                 break;
1035
1036         default:
1037                 return;
1038         }
1039
1040         if (cursor == playhead_cursor) {
1041                 session->request_locate (pos);
1042         } else {
1043                 cursor->set_position (pos);
1044         }
1045 }
1046
1047 void
1048 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
1049 {
1050         nframes64_t target;
1051         Location* loc;
1052         bool ignored;
1053
1054         if (!session) {
1055                 return;
1056         }
1057
1058         if (selection->markers.empty()) {
1059                 nframes64_t mouse;
1060                 bool ignored;
1061
1062                 if (!mouse_frame (mouse, ignored)) {
1063                         return;
1064                 }
1065
1066                 add_location_mark (mouse);
1067         }
1068
1069         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1070                 return;
1071         }
1072
1073         nframes64_t pos = loc->start();
1074
1075         // so we don't find the current region again..
1076         if (dir > 0 || pos > 0) {
1077                 pos += dir;
1078         }
1079
1080         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1081                 return;
1082         }
1083
1084         loc->move_to (target);
1085 }
1086
1087 void
1088 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1089 {
1090         selected_marker_to_region_boundary (with_selection, 1);
1091 }
1092
1093 void
1094 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1095 {
1096         selected_marker_to_region_boundary (with_selection, -1);
1097 }
1098
1099 void
1100 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1101 {
1102         boost::shared_ptr<Region> r;
1103         nframes64_t pos;
1104         Location* loc;
1105         bool ignored;
1106
1107         if (!session || selection->markers.empty()) {
1108                 return;
1109         }
1110
1111         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1112                 return;
1113         }
1114
1115         TimeAxisView *ontrack = 0;
1116
1117         pos = loc->start();
1118
1119         // so we don't find the current region again..
1120         if (dir>0 || pos>0)
1121                 pos+=dir;
1122
1123         if (!selection->tracks.empty()) {
1124
1125                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1126
1127         } else if (clicked_trackview) {
1128
1129                 TrackViewList t;
1130                 t.push_back (clicked_trackview);
1131
1132                 r = find_next_region (pos, point, dir, t, &ontrack);
1133
1134         } else {
1135
1136                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1137         }
1138
1139         if (r == 0) {
1140                 return;
1141         }
1142
1143         switch (point){
1144         case Start:
1145                 pos = r->first_frame ();
1146                 break;
1147
1148         case End:
1149                 pos = r->last_frame ();
1150                 break;
1151
1152         case SyncPoint:
1153                 pos = r->adjust_to_sync (r->first_frame());
1154                 break;
1155         }
1156
1157         float speed = 1.0f;
1158         AudioTimeAxisView *atav;
1159
1160         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1161                 if (atav->get_diskstream() != 0) {
1162                         speed = atav->get_diskstream()->speed();
1163                 }
1164         }
1165
1166         pos = track_frame_to_session_frame(pos, speed);
1167
1168         loc->move_to (pos);
1169 }
1170
1171 void
1172 Editor::selected_marker_to_next_region_point (RegionPoint point)
1173 {
1174         selected_marker_to_region_point (point, 1);
1175 }
1176
1177 void
1178 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1179 {
1180         selected_marker_to_region_point (point, -1);
1181 }
1182
1183 void
1184 Editor::selected_marker_to_selection_start ()
1185 {
1186         nframes64_t pos = 0;
1187         Location* loc;
1188         bool ignored;
1189
1190         if (!session || selection->markers.empty()) {
1191                 return;
1192         }
1193
1194         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1195                 return;
1196         }
1197
1198         RegionSelection rs;
1199
1200         get_regions_for_action (rs);
1201
1202         switch (mouse_mode) {
1203         case MouseObject:
1204                 if (!rs.empty()) {
1205                         pos = rs.start();
1206                 }
1207                 break;
1208
1209         case MouseRange:
1210                 if (!selection->time.empty()) {
1211                         pos = selection->time.start ();
1212                 }
1213                 break;
1214
1215         default:
1216                 return;
1217         }
1218
1219         loc->move_to (pos);
1220 }
1221
1222 void
1223 Editor::selected_marker_to_selection_end ()
1224 {
1225         nframes64_t pos = 0;
1226         Location* loc;
1227         bool ignored;
1228
1229         if (!session || selection->markers.empty()) {
1230                 return;
1231         }
1232
1233         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1234                 return;
1235         }
1236
1237         RegionSelection rs;
1238
1239         get_regions_for_action (rs);
1240
1241         switch (mouse_mode) {
1242         case MouseObject:
1243                 if (!rs.empty()) {
1244                         pos = rs.end_frame();
1245                 }
1246                 break;
1247
1248         case MouseRange:
1249                 if (!selection->time.empty()) {
1250                         pos = selection->time.end_frame ();
1251                 }
1252                 break;
1253
1254         default:
1255                 return;
1256         }
1257
1258         loc->move_to (pos);
1259 }
1260
1261 void
1262 Editor::scroll_playhead (bool forward)
1263 {
1264         nframes64_t pos = playhead_cursor->current_frame;
1265         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1266
1267         if (forward) {
1268                 if (pos == max_frames) {
1269                         return;
1270                 }
1271
1272                 if (pos < max_frames - delta) {
1273                         pos += delta ;
1274                 } else {
1275                         pos = max_frames;
1276                 }
1277
1278         } else {
1279
1280                 if (pos == 0) {
1281                         return;
1282                 }
1283
1284                 if (pos > delta) {
1285                         pos -= delta;
1286                 } else {
1287                         pos = 0;
1288                 }
1289         }
1290
1291         session->request_locate (pos);
1292 }
1293
1294 void
1295 Editor::playhead_backward ()
1296 {
1297         nframes64_t pos;
1298         nframes64_t cnt;
1299         float prefix;
1300         bool was_floating;
1301
1302         if (get_prefix (prefix, was_floating)) {
1303                 cnt = 1;
1304         } else {
1305                 if (was_floating) {
1306                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1307                 } else {
1308                         cnt = (nframes64_t) prefix;
1309                 }
1310         }
1311
1312         pos = playhead_cursor->current_frame;
1313
1314         if ((nframes64_t) pos < cnt) {
1315                 pos = 0;
1316         } else {
1317                 pos -= cnt;
1318         }
1319
1320         /* XXX this is completely insane. with the current buffering
1321            design, we'll force a complete track buffer flush and
1322            reload, just to move 1 sample !!!
1323         */
1324
1325         session->request_locate (pos);
1326 }
1327
1328 void
1329 Editor::playhead_forward ()
1330 {
1331         nframes64_t pos;
1332         nframes64_t cnt;
1333         bool was_floating;
1334         float prefix;
1335
1336         if (get_prefix (prefix, was_floating)) {
1337                 cnt = 1;
1338         } else {
1339                 if (was_floating) {
1340                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1341                 } else {
1342                         cnt = (nframes64_t) floor (prefix);
1343                 }
1344         }
1345
1346         pos = playhead_cursor->current_frame;
1347
1348         /* XXX this is completely insane. with the current buffering
1349            design, we'll force a complete track buffer flush and
1350            reload, just to move 1 sample !!!
1351         */
1352
1353         session->request_locate (pos+cnt);
1354 }
1355
1356 void
1357 Editor::cursor_align (bool playhead_to_edit)
1358 {
1359         if (!session) {
1360                 return;
1361         }
1362
1363         if (playhead_to_edit) {
1364
1365                 if (selection->markers.empty()) {
1366                         return;
1367                 }
1368
1369                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1370
1371         } else {
1372
1373                 /* move selected markers to playhead */
1374
1375                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1376                         bool ignored;
1377
1378                         Location* loc = find_location_from_marker (*i, ignored);
1379
1380                         if (loc->is_mark()) {
1381                                 loc->set_start (playhead_cursor->current_frame);
1382                         } else {
1383                                 loc->set (playhead_cursor->current_frame,
1384                                           playhead_cursor->current_frame + loc->length());
1385                         }
1386                 }
1387         }
1388 }
1389
1390 void
1391 Editor::edit_cursor_backward ()
1392 {
1393         nframes64_t pos;
1394         nframes64_t cnt;
1395         float prefix;
1396         bool was_floating;
1397
1398         if (get_prefix (prefix, was_floating)) {
1399                 cnt = 1;
1400         } else {
1401                 if (was_floating) {
1402                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1403                 } else {
1404                         cnt = (nframes64_t) prefix;
1405                 }
1406         }
1407
1408         if ((pos = get_preferred_edit_position()) < 0) {
1409                 return;
1410         }
1411
1412         if (pos < cnt) {
1413                 pos = 0;
1414         } else {
1415                 pos -= cnt;
1416         }
1417
1418         // EDIT CURSOR edit_cursor->set_position (pos);
1419 }
1420
1421 void
1422 Editor::edit_cursor_forward ()
1423 {
1424         //nframes64_t pos;
1425         nframes64_t cnt;
1426         bool was_floating;
1427         float prefix;
1428
1429         if (get_prefix (prefix, was_floating)) {
1430                 cnt = 1;
1431         } else {
1432                 if (was_floating) {
1433                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1434                 } else {
1435                         cnt = (nframes64_t) floor (prefix);
1436                 }
1437         }
1438
1439         // pos = edit_cursor->current_frame;
1440         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1441 }
1442
1443 void
1444 Editor::goto_frame ()
1445 {
1446         float prefix;
1447         bool was_floating;
1448         nframes64_t frame;
1449
1450         if (get_prefix (prefix, was_floating)) {
1451                 return;
1452         }
1453
1454         if (was_floating) {
1455                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1456         } else {
1457                 frame = (nframes64_t) floor (prefix);
1458         }
1459
1460         session->request_locate (frame);
1461 }
1462
1463 void
1464 Editor::scroll_backward (float pages)
1465 {
1466         nframes64_t frame;
1467         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1468         bool was_floating;
1469         float prefix;
1470         nframes64_t cnt;
1471
1472         if (get_prefix (prefix, was_floating)) {
1473                 cnt = (nframes64_t) floor (pages * one_page);
1474         } else {
1475                 if (was_floating) {
1476                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1477                 } else {
1478                         cnt = (nframes64_t) floor (prefix * one_page);
1479                 }
1480         }
1481
1482         if (leftmost_frame < cnt) {
1483                 frame = 0;
1484         } else {
1485                 frame = leftmost_frame - cnt;
1486         }
1487
1488         reset_x_origin (frame);
1489 }
1490
1491 void
1492 Editor::scroll_forward (float pages)
1493 {
1494         nframes64_t frame;
1495         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1496         bool was_floating;
1497         float prefix;
1498         nframes64_t cnt;
1499
1500         if (get_prefix (prefix, was_floating)) {
1501                 cnt = (nframes64_t) floor (pages * one_page);
1502         } else {
1503                 if (was_floating) {
1504                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1505                 } else {
1506                         cnt = (nframes64_t) floor (prefix * one_page);
1507                 }
1508         }
1509
1510         if (max_frames - cnt < leftmost_frame) {
1511                 frame = max_frames - cnt;
1512         } else {
1513                 frame = leftmost_frame + cnt;
1514         }
1515
1516         reset_x_origin (frame);
1517 }
1518
1519 void
1520 Editor::scroll_tracks_down ()
1521 {
1522         float prefix;
1523         bool was_floating;
1524         int cnt;
1525
1526         if (get_prefix (prefix, was_floating)) {
1527                 cnt = 1;
1528         } else {
1529                 cnt = (int) floor (prefix);
1530         }
1531
1532         double vert_value = vertical_adjustment.get_value() + (cnt *
1533                 vertical_adjustment.get_page_size());
1534         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1535                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1536         }
1537         vertical_adjustment.set_value (vert_value);
1538 }
1539
1540 void
1541 Editor::scroll_tracks_up ()
1542 {
1543         float prefix;
1544         bool was_floating;
1545         int cnt;
1546
1547         if (get_prefix (prefix, was_floating)) {
1548                 cnt = 1;
1549         } else {
1550                 cnt = (int) floor (prefix);
1551         }
1552
1553         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1554 }
1555
1556 void
1557 Editor::scroll_tracks_down_line ()
1558 {
1559
1560         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1561         double vert_value = adj->get_value() + 60;
1562
1563         if (vert_value>adj->get_upper() - canvas_height) {
1564                 vert_value = adj->get_upper() - canvas_height;
1565         }
1566         adj->set_value (vert_value);
1567 }
1568
1569 void
1570 Editor::scroll_tracks_up_line ()
1571 {
1572         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1573         adj->set_value (adj->get_value() - 60);
1574 }
1575
1576 /* ZOOM */
1577
1578 void
1579 Editor::temporal_zoom_step (bool coarser)
1580 {
1581         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1582
1583         double nfpu;
1584
1585         nfpu = frames_per_unit;
1586
1587         if (coarser) {
1588                 nfpu *= 1.61803399;
1589         } else {
1590                 nfpu = max(1.0,(nfpu/1.61803399));
1591         }
1592
1593         temporal_zoom (nfpu);
1594 }
1595
1596 void
1597 Editor::temporal_zoom (gdouble fpu)
1598 {
1599         if (!session) return;
1600
1601         nframes64_t current_page = current_page_frames();
1602         nframes64_t current_leftmost = leftmost_frame;
1603         nframes64_t current_rightmost;
1604         nframes64_t current_center;
1605         nframes64_t new_page_size;
1606         nframes64_t half_page_size;
1607         nframes64_t leftmost_after_zoom = 0;
1608         nframes64_t where;
1609         bool in_track_canvas;
1610         double nfpu;
1611         double l;
1612
1613         /* XXX this limit is also in ::set_frames_per_unit() */
1614
1615         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1616                 return;
1617         }
1618
1619         nfpu = fpu;
1620
1621         new_page_size = (nframes64_t) floor (canvas_width * nfpu);
1622         half_page_size = new_page_size / 2;
1623
1624         switch (zoom_focus) {
1625         case ZoomFocusLeft:
1626                 leftmost_after_zoom = current_leftmost;
1627                 break;
1628
1629         case ZoomFocusRight:
1630                 current_rightmost = leftmost_frame + current_page;
1631                 if (current_rightmost < new_page_size) {
1632                         leftmost_after_zoom = 0;
1633                 } else {
1634                         leftmost_after_zoom = current_rightmost - new_page_size;
1635                 }
1636                 break;
1637
1638         case ZoomFocusCenter:
1639                 current_center = current_leftmost + (current_page/2);
1640                 if (current_center < half_page_size) {
1641                         leftmost_after_zoom = 0;
1642                 } else {
1643                         leftmost_after_zoom = current_center - half_page_size;
1644                 }
1645                 break;
1646
1647         case ZoomFocusPlayhead:
1648                 /* try to keep the playhead in the same place */
1649
1650                 where = playhead_cursor->current_frame;
1651
1652                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1653
1654                 if (l < 0) {
1655                         leftmost_after_zoom = 0;
1656                 } else if (l > max_frames) {
1657                         leftmost_after_zoom = max_frames - new_page_size;
1658                 } else {
1659                         leftmost_after_zoom = (nframes64_t) l;
1660                 }
1661                 break;
1662
1663         case ZoomFocusMouse:
1664                 /* try to keep the mouse over the same point in the display */
1665
1666                 if (!mouse_frame (where, in_track_canvas)) {
1667                         /* use playhead instead */
1668                         where = playhead_cursor->current_frame;
1669
1670                         if (where < half_page_size) {
1671                                 leftmost_after_zoom = 0;
1672                         } else {
1673                                 leftmost_after_zoom = where - half_page_size;
1674                         }
1675
1676                 } else {
1677
1678                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1679
1680                         if (l < 0) {
1681                                 leftmost_after_zoom = 0;
1682                         } else if (l > max_frames) {
1683                                 leftmost_after_zoom = max_frames - new_page_size;
1684                         } else {
1685                                 leftmost_after_zoom = (nframes64_t) l;
1686                         }
1687                 }
1688
1689                 break;
1690
1691         case ZoomFocusEdit:
1692                 /* try to keep the edit point in the same place */
1693                 where = get_preferred_edit_position ();
1694
1695                 if (where > 0) {
1696
1697                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1698
1699                         if (l < 0) {
1700                                 leftmost_after_zoom = 0;
1701                         } else if (l > max_frames) {
1702                                 leftmost_after_zoom = max_frames - new_page_size;
1703                         } else {
1704                                 leftmost_after_zoom = (nframes64_t) l;
1705                         }
1706
1707                 } else {
1708                         /* edit point not defined */
1709                         return;
1710                 }
1711                 break;
1712
1713         }
1714
1715         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1716
1717         reposition_and_zoom (leftmost_after_zoom, nfpu);
1718 }
1719
1720 void
1721 Editor::temporal_zoom_region (bool both_axes)
1722 {
1723
1724         nframes64_t start = max_frames;
1725         nframes64_t end = 0;
1726         RegionSelection rs;
1727         set<TimeAxisView*> tracks;
1728
1729         get_regions_for_action (rs);
1730
1731         if (rs.empty()) {
1732                 return;
1733         }
1734
1735         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1736
1737                 if ((*i)->region()->position() < start) {
1738                         start = (*i)->region()->position();
1739                 }
1740
1741                 if ((*i)->region()->last_frame() + 1 > end) {
1742                         end = (*i)->region()->last_frame() + 1;
1743                 }
1744
1745                 tracks.insert (&((*i)->get_time_axis_view()));
1746         }
1747
1748         /* now comes an "interesting" hack ... make sure we leave a little space
1749            at each end of the editor so that the zoom doesn't fit the region
1750            precisely to the screen.
1751         */
1752
1753         GdkScreen* screen = gdk_screen_get_default ();
1754         gint pixwidth = gdk_screen_get_width (screen);
1755         gint mmwidth = gdk_screen_get_width_mm (screen);
1756         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1757         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1758
1759         if ((start == 0 && end == 0) || end < start) {
1760                 return;
1761         }
1762
1763         nframes64_t range = end - start;
1764         double new_fpu = (double)range / (double)canvas_width;
1765         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1766
1767         if (start > extra_samples) {
1768                 start -= extra_samples;
1769         } else {
1770                 start = 0;
1771         }
1772
1773         if (max_frames - extra_samples > end) {
1774                 end += extra_samples;
1775         } else {
1776                 end = max_frames;
1777         }
1778
1779         if (both_axes) {
1780                 /* save visual state with track states included, and prevent
1781                    set_frames_per_unit() from doing it again.
1782                 */
1783                 undo_visual_stack.push_back (current_visual_state(true));
1784                 no_save_visual = true;
1785         }
1786
1787         temporal_zoom_by_frame (start, end, "zoom to region");
1788
1789         if (both_axes) {
1790                 uint32_t per_track_height = (uint32_t) floor ((canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1791
1792                 /* set visible track heights appropriately */
1793
1794                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1795                         (*t)->set_height (per_track_height);
1796                 }
1797
1798                 /* hide irrelevant tracks */
1799
1800                 no_route_list_redisplay = true;
1801
1802                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1803                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1804                                 hide_track_in_display (**i, true);
1805                         }
1806                 }
1807
1808                 no_route_list_redisplay = false;
1809                 redisplay_route_list ();
1810
1811                 vertical_adjustment.set_value (0);
1812                 no_save_visual = false;
1813         }
1814
1815         zoomed_to_region = true;
1816         redo_visual_stack.push_back (current_visual_state());
1817 }
1818
1819 void
1820 Editor::toggle_zoom_region (bool both_axes)
1821 {
1822         if (zoomed_to_region) {
1823                 swap_visual_state ();
1824         } else {
1825                 temporal_zoom_region (both_axes);
1826         }
1827 }
1828
1829 void
1830 Editor::temporal_zoom_selection ()
1831 {
1832         if (!selection) return;
1833
1834         if (selection->time.empty()) {
1835                 return;
1836         }
1837
1838         nframes64_t start = selection->time[clicked_selection].start;
1839         nframes64_t end = selection->time[clicked_selection].end;
1840
1841         temporal_zoom_by_frame (start, end, "zoom to selection");
1842 }
1843
1844 void
1845 Editor::temporal_zoom_session ()
1846 {
1847         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1848
1849         if (session) {
1850                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1851         }
1852 }
1853
1854 void
1855 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & op)
1856 {
1857         if (!session) return;
1858
1859         if ((start == 0 && end == 0) || end < start) {
1860                 return;
1861         }
1862
1863         nframes64_t range = end - start;
1864
1865         double new_fpu = (double)range / (double)canvas_width;
1866
1867         nframes64_t new_page = (nframes64_t) floor (canvas_width * new_fpu);
1868         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1869         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1870
1871         if (new_leftmost > middle) {
1872                 new_leftmost = 0;
1873         }
1874
1875         reposition_and_zoom (new_leftmost, new_fpu);
1876 }
1877
1878 void
1879 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1880 {
1881         if (!session) {
1882                 return;
1883         }
1884         double range_before = frame - leftmost_frame;
1885         double new_fpu;
1886
1887         new_fpu = frames_per_unit;
1888
1889         if (coarser) {
1890                 new_fpu *= 1.61803399;
1891                 range_before *= 1.61803399;
1892         } else {
1893                 new_fpu = max(1.0,(new_fpu/1.61803399));
1894                 range_before /= 1.61803399;
1895         }
1896
1897         if (new_fpu == frames_per_unit)  {
1898                 return;
1899         }
1900
1901         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1902
1903         if (new_leftmost > frame) {
1904                 new_leftmost = 0;
1905         }
1906 //      begin_reversible_command (_("zoom to frame"));
1907 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1908 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1909 //      commit_reversible_command ();
1910
1911         reposition_and_zoom (new_leftmost, new_fpu);
1912 }
1913
1914
1915 bool
1916 Editor::choose_new_marker_name(string &name) {
1917
1918         if (!Config->get_name_new_markers()) {
1919                 /* don't prompt user for a new name */
1920                 return true;
1921         }
1922
1923         ArdourPrompter dialog (true);
1924
1925         dialog.set_prompt (_("New Name:"));
1926
1927         WindowTitle title(Glib::get_application_name());
1928         title += _("Name New Location Marker");
1929
1930         dialog.set_title(title.get_string());
1931
1932         dialog.set_name ("MarkNameWindow");
1933         dialog.set_size_request (250, -1);
1934         dialog.set_position (Gtk::WIN_POS_MOUSE);
1935
1936         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1937         dialog.set_initial_text (name);
1938
1939         dialog.show ();
1940
1941         switch (dialog.run ()) {
1942         case RESPONSE_ACCEPT:
1943                 break;
1944         default:
1945                 return false;
1946         }
1947
1948         dialog.get_result(name);
1949         return true;
1950
1951 }
1952
1953
1954 void
1955 Editor::add_location_from_selection ()
1956 {
1957         string rangename;
1958
1959         if (selection->time.empty()) {
1960                 return;
1961         }
1962
1963         if (session == 0 || clicked_trackview == 0) {
1964                 return;
1965         }
1966
1967         nframes64_t start = selection->time[clicked_selection].start;
1968         nframes64_t end = selection->time[clicked_selection].end;
1969
1970         session->locations()->next_available_name(rangename,"selection");
1971         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1972
1973         session->begin_reversible_command (_("add marker"));
1974         XMLNode &before = session->locations()->get_state();
1975         session->locations()->add (location, true);
1976         XMLNode &after = session->locations()->get_state();
1977         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1978         session->commit_reversible_command ();
1979 }
1980
1981 void
1982 Editor::add_location_mark (nframes64_t where)
1983 {
1984         string markername;
1985
1986         select_new_marker = true;
1987
1988         session->locations()->next_available_name(markername,"mark");
1989         if (!choose_new_marker_name(markername)) {
1990                 return;
1991         }
1992         Location *location = new Location (where, where, markername, Location::IsMark);
1993         session->begin_reversible_command (_("add marker"));
1994         XMLNode &before = session->locations()->get_state();
1995         session->locations()->add (location, true);
1996         XMLNode &after = session->locations()->get_state();
1997         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1998         session->commit_reversible_command ();
1999 }
2000
2001 void
2002 Editor::add_location_from_playhead_cursor ()
2003 {
2004         add_location_mark (session->audible_frame());
2005 }
2006
2007 void
2008 Editor::add_locations_from_audio_region ()
2009 {
2010         RegionSelection rs;
2011
2012         get_regions_for_action (rs);
2013
2014         if (rs.empty()) {
2015                 return;
2016         }
2017
2018         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
2019         XMLNode &before = session->locations()->get_state();
2020
2021         cerr << "Add locations\n";
2022
2023         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
2024
2025                 boost::shared_ptr<Region> region = (*i)->region ();
2026
2027                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
2028
2029                 session->locations()->add (location, true);
2030         }
2031
2032         XMLNode &after = session->locations()->get_state();
2033         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2034         session->commit_reversible_command ();
2035 }
2036
2037 void
2038 Editor::add_location_from_audio_region ()
2039 {
2040         RegionSelection rs;
2041
2042         get_regions_for_action (rs);
2043
2044         if (rs.empty()) {
2045                 return;
2046         }
2047
2048         session->begin_reversible_command (_("add marker"));
2049         XMLNode &before = session->locations()->get_state();
2050
2051         string markername;
2052
2053         if (rs.size() > 1) {            // more than one region selected
2054                 session->locations()->next_available_name(markername, "regions");
2055         } else {
2056                 RegionView* rv = *(rs.begin());
2057                 boost::shared_ptr<Region> region = rv->region();
2058                 markername = region->name();
2059         }
2060
2061         if (!choose_new_marker_name(markername)) {
2062                 return;
2063         }
2064
2065         cerr << "Add location\n";
2066
2067         // single range spanning all selected
2068         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2069         session->locations()->add (location, true);
2070
2071         XMLNode &after = session->locations()->get_state();
2072         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2073         session->commit_reversible_command ();
2074 }
2075
2076 void
2077 Editor::amplitude_zoom_step (bool in)
2078 {
2079         gdouble zoom = 1.0;
2080
2081         if (in) {
2082                 zoom *= 2.0;
2083         } else {
2084                 if (zoom > 2.0) {
2085                         zoom /= 2.0;
2086                 } else {
2087                         zoom = 1.0;
2088                 }
2089         }
2090
2091 #ifdef FIX_FOR_CANVAS
2092         /* XXX DO SOMETHING */
2093 #endif
2094 }
2095
2096
2097 /* DELETION */
2098
2099
2100 void
2101 Editor::delete_sample_forward ()
2102 {
2103 }
2104
2105 void
2106 Editor::delete_sample_backward ()
2107 {
2108 }
2109
2110 void
2111 Editor::delete_screen ()
2112 {
2113 }
2114
2115 /* SEARCH */
2116
2117 void
2118 Editor::search_backwards ()
2119 {
2120         /* what ? */
2121 }
2122
2123 void
2124 Editor::search_forwards ()
2125 {
2126         /* what ? */
2127 }
2128
2129 /* MARKS */
2130
2131 void
2132 Editor::jump_forward_to_mark ()
2133 {
2134         if (!session) {
2135                 return;
2136         }
2137
2138         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2139
2140         if (location) {
2141                 session->request_locate (location->start(), session->transport_rolling());
2142         } else {
2143                 session->request_locate (session->current_end_frame());
2144         }
2145 }
2146
2147 void
2148 Editor::jump_backward_to_mark ()
2149 {
2150         if (!session) {
2151                 return;
2152         }
2153
2154         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2155
2156         if (location) {
2157                 session->request_locate (location->start(), session->transport_rolling());
2158         } else {
2159                 session->goto_start ();
2160         }
2161 }
2162
2163 void
2164 Editor::set_mark ()
2165 {
2166         nframes64_t pos;
2167         float prefix;
2168         bool was_floating;
2169         string markername;
2170
2171         if (get_prefix (prefix, was_floating)) {
2172                 pos = session->audible_frame ();
2173         } else {
2174                 if (was_floating) {
2175                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2176                 } else {
2177                         pos = (nframes64_t) floor (prefix);
2178                 }
2179         }
2180
2181         session->locations()->next_available_name(markername,"mark");
2182         if (!choose_new_marker_name(markername)) {
2183                 return;
2184         }
2185         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2186 }
2187
2188 void
2189 Editor::clear_markers ()
2190 {
2191         if (session) {
2192                 session->begin_reversible_command (_("clear markers"));
2193                 XMLNode &before = session->locations()->get_state();
2194                 session->locations()->clear_markers ();
2195                 XMLNode &after = session->locations()->get_state();
2196                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2197                 session->commit_reversible_command ();
2198         }
2199 }
2200
2201 void
2202 Editor::clear_ranges ()
2203 {
2204         if (session) {
2205                 session->begin_reversible_command (_("clear ranges"));
2206                 XMLNode &before = session->locations()->get_state();
2207
2208                 Location * looploc = session->locations()->auto_loop_location();
2209                 Location * punchloc = session->locations()->auto_punch_location();
2210
2211                 session->locations()->clear_ranges ();
2212                 // re-add these
2213                 if (looploc) session->locations()->add (looploc);
2214                 if (punchloc) session->locations()->add (punchloc);
2215
2216                 XMLNode &after = session->locations()->get_state();
2217                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2218                 session->commit_reversible_command ();
2219         }
2220 }
2221
2222 void
2223 Editor::clear_locations ()
2224 {
2225         session->begin_reversible_command (_("clear locations"));
2226         XMLNode &before = session->locations()->get_state();
2227         session->locations()->clear ();
2228         XMLNode &after = session->locations()->get_state();
2229         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2230         session->commit_reversible_command ();
2231         session->locations()->clear ();
2232 }
2233
2234 void
2235 Editor::unhide_markers ()
2236 {
2237         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2238                 Location *l = (*i).first;
2239                 if (l->is_hidden() && l->is_mark()) {
2240                         l->set_hidden(false, this);
2241                 }
2242         }
2243 }
2244
2245 void
2246 Editor::unhide_ranges ()
2247 {
2248         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2249                 Location *l = (*i).first;
2250                 if (l->is_hidden() && l->is_range_marker()) {
2251                         l->set_hidden(false, this);
2252                 }
2253         }
2254 }
2255
2256 /* INSERT/REPLACE */
2257
2258 void
2259 Editor::insert_region_list_drag (boost::shared_ptr<AudioRegion> region, int x, int y)
2260 {
2261         double wx, wy;
2262         double cx, cy;
2263         TimeAxisView *tv;
2264         nframes64_t where;
2265         AudioTimeAxisView *atv = 0;
2266         boost::shared_ptr<Playlist> playlist;
2267
2268         track_canvas->window_to_world (x, y, wx, wy);
2269         //wx += horizontal_adjustment.get_value();
2270         //wy += vertical_adjustment.get_value();
2271
2272         GdkEvent event;
2273         event.type = GDK_BUTTON_RELEASE;
2274         event.button.x = wx;
2275         event.button.y = wy;
2276
2277         where = event_frame (&event, &cx, &cy);
2278
2279         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2280                 /* clearly outside canvas area */
2281                 return;
2282         }
2283
2284         if ((tv = trackview_by_y_position (cy)) == 0) {
2285                 return;
2286         }
2287
2288         if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) == 0) {
2289                 return;
2290         }
2291
2292         if ((playlist = atv->playlist()) == 0) {
2293                 return;
2294         }
2295
2296         snap_to (where);
2297
2298         begin_reversible_command (_("insert dragged region"));
2299         XMLNode &before = playlist->get_state();
2300         playlist->add_region (RegionFactory::create (region), where, 1.0);
2301         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2302         commit_reversible_command ();
2303 }
2304
2305 void
2306 Editor::insert_region_list_selection (float times)
2307 {
2308         RouteTimeAxisView *tv = 0;
2309         boost::shared_ptr<Playlist> playlist;
2310
2311         if (clicked_audio_trackview != 0) {
2312                 tv = clicked_audio_trackview;
2313         } else if (!selection->tracks.empty()) {
2314                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2315                         return;
2316                 }
2317         } else if (entered_track != 0) {
2318                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2319                         return;
2320                 }
2321         } else {
2322                 return;
2323         }
2324
2325         if ((playlist = tv->playlist()) == 0) {
2326                 return;
2327         }
2328
2329         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2330
2331         if (selected->count_selected_rows() != 1) {
2332                 return;
2333         }
2334
2335         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2336
2337         /* only one row selected, so rows.begin() is it */
2338
2339         TreeIter iter;
2340
2341         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2342
2343                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2344
2345                 begin_reversible_command (_("insert region"));
2346                 XMLNode &before = playlist->get_state();
2347                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2348                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2349                 commit_reversible_command ();
2350         }
2351 }
2352
2353 /* BUILT-IN EFFECTS */
2354
2355 void
2356 Editor::reverse_selection ()
2357 {
2358
2359 }
2360
2361 /* GAIN ENVELOPE EDITING */
2362
2363 void
2364 Editor::edit_envelope ()
2365 {
2366 }
2367
2368 /* PLAYBACK */
2369
2370 void
2371 Editor::transition_to_rolling (bool fwd)
2372 {
2373         if (!session) {
2374                 return;
2375         }
2376
2377         switch (Config->get_slave_source()) {
2378         case None:
2379         case JACK:
2380                 break;
2381         default:
2382                 /* transport controlled by the master */
2383                 return;
2384         }
2385
2386         if (session->is_auditioning()) {
2387                 session->cancel_audition ();
2388                 return;
2389         }
2390
2391         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2392 }
2393
2394 void
2395 Editor::toggle_playback (bool with_abort)
2396 {
2397         if (!session) {
2398                 return;
2399         }
2400
2401         switch (Config->get_slave_source()) {
2402         case None:
2403         case JACK:
2404                 break;
2405         default:
2406                 /* transport controlled by the master */
2407                 return;
2408         }
2409
2410         if (session->is_auditioning()) {
2411                 session->cancel_audition ();
2412                 return;
2413         }
2414
2415         if (session->transport_rolling()) {
2416                 session->request_stop (with_abort);
2417                 if (session->get_play_loop()) {
2418                         session->request_play_loop (false);
2419                 }
2420         } else {
2421                 session->request_transport_speed (1.0f);
2422         }
2423 }
2424
2425 void
2426 Editor::play_from_start ()
2427 {
2428         session->request_locate (session->current_start_frame(), true);
2429 }
2430
2431 void
2432 Editor::play_from_edit_point ()
2433 {
2434         session->request_locate (get_preferred_edit_position(), true);
2435 }
2436
2437 void
2438 Editor::play_from_edit_point_and_return ()
2439 {
2440         nframes64_t start_frame;
2441         nframes64_t return_frame;
2442
2443         start_frame = get_preferred_edit_position (true);
2444
2445         if (session->transport_rolling()) {
2446                 session->request_locate (start_frame, false);
2447                 return;
2448         }
2449
2450         /* don't reset the return frame if its already set */
2451
2452         if ((return_frame = session->requested_return_frame()) < 0) {
2453                 return_frame = session->audible_frame();
2454         }
2455
2456         if (start_frame >= 0) {
2457                 session->request_roll_at_and_return (start_frame, return_frame);
2458         }
2459 }
2460
2461 void
2462 Editor::play_selection ()
2463 {
2464         if (selection->time.empty()) {
2465                 return;
2466         }
2467
2468         session->request_play_range (true);
2469 }
2470
2471 void
2472 Editor::loop_selected_region ()
2473 {
2474         RegionSelection rs;
2475
2476         get_regions_for_action (rs);
2477
2478         if (!rs.empty()) {
2479                 RegionView *rv = *(rs.begin());
2480                 Location* tll;
2481
2482                 if ((tll = transport_loop_location()) != 0)  {
2483
2484                         tll->set (rv->region()->position(), rv->region()->last_frame());
2485
2486                         // enable looping, reposition and start rolling
2487
2488                         session->request_play_loop (true);
2489                         session->request_locate (tll->start(), false);
2490                         session->request_transport_speed (1.0f);
2491                 }
2492         }
2493 }
2494
2495 void
2496 Editor::play_location (Location& location)
2497 {
2498         if (location.start() <= location.end()) {
2499                 return;
2500         }
2501
2502         session->request_bounded_roll (location.start(), location.end());
2503 }
2504
2505 void
2506 Editor::loop_location (Location& location)
2507 {
2508         if (location.start() <= location.end()) {
2509                 return;
2510         }
2511
2512         Location* tll;
2513
2514         if ((tll = transport_loop_location()) != 0) {
2515                 tll->set (location.start(), location.end());
2516
2517                 // enable looping, reposition and start rolling
2518                 session->request_play_loop (true);
2519                 session->request_locate (tll->start(), true);
2520         }
2521 }
2522
2523 void
2524 Editor::raise_region ()
2525 {
2526         selection->foreach_region (&Region::raise);
2527 }
2528
2529 void
2530 Editor::raise_region_to_top ()
2531 {
2532         selection->foreach_region (&Region::raise_to_top);
2533 }
2534
2535 void
2536 Editor::lower_region ()
2537 {
2538         selection->foreach_region (&Region::lower);
2539 }
2540
2541 void
2542 Editor::lower_region_to_bottom ()
2543 {
2544         selection->foreach_region (&Region::lower_to_bottom);
2545 }
2546
2547 void
2548 Editor::edit_region ()
2549 {
2550         if (clicked_regionview == 0) {
2551                 return;
2552         }
2553
2554         clicked_regionview->show_region_editor ();
2555 }
2556
2557 void
2558 Editor::rename_region()
2559 {
2560         RegionSelection rs;
2561
2562         get_regions_for_action (rs);
2563
2564         if (rs.empty()) {
2565                 return;
2566         }
2567
2568         WindowTitle title (Glib::get_application_name());
2569         title += _("Rename Region");
2570
2571         ArdourDialog d (*this, title.get_string(), true, false);
2572         Entry entry;
2573         Label label (_("New name:"));
2574         HBox hbox;
2575
2576         hbox.set_spacing (6);
2577         hbox.pack_start (label, false, false);
2578         hbox.pack_start (entry, true, true);
2579
2580         d.get_vbox()->set_border_width (12);
2581         d.get_vbox()->pack_start (hbox, false, false);
2582
2583         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2584         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2585
2586         d.set_size_request (300, -1);
2587         d.set_position (Gtk::WIN_POS_MOUSE);
2588
2589         entry.set_text (rs.front()->region()->name());
2590         entry.select_region (0, -1);
2591
2592         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2593
2594         d.show_all ();
2595
2596         entry.grab_focus();
2597
2598         int ret = d.run();
2599
2600         d.hide ();
2601
2602         if (ret == RESPONSE_OK) {
2603                 std::string str = entry.get_text();
2604                 strip_whitespace_edges (str);
2605                 if (!str.empty()) {
2606                         rs.front()->region()->set_name (str);
2607                         redisplay_regions ();
2608                 }
2609         }
2610 }
2611
2612 void
2613 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2614 {
2615         if (session->is_auditioning()) {
2616                 session->cancel_audition ();
2617         }
2618
2619         // note: some potential for creativity here, because region doesn't
2620         // have to belong to the playlist that Route is handling
2621
2622         // bool was_soloed = route.soloed();
2623
2624         route.set_solo (true, this);
2625
2626         session->request_bounded_roll (region->position(), region->position() + region->length());
2627
2628         /* XXX how to unset the solo state ? */
2629 }
2630
2631 void
2632 Editor::play_edit_range ()
2633 {
2634         nframes64_t start, end;
2635
2636         if (get_edit_op_range (start, end)) {
2637                 session->request_bounded_roll (start, end);
2638         }
2639 }
2640
2641 void
2642 Editor::play_selected_region ()
2643 {
2644         nframes64_t start = max_frames;
2645         nframes64_t end = 0;
2646         RegionSelection rs;
2647
2648         get_regions_for_action (rs);
2649
2650         if (rs.empty()) {
2651                 return;
2652         }
2653
2654         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2655                 if ((*i)->region()->position() < start) {
2656                         start = (*i)->region()->position();
2657                 }
2658                 if ((*i)->region()->last_frame() + 1 > end) {
2659                         end = (*i)->region()->last_frame() + 1;
2660                 }
2661         }
2662
2663         session->request_stop ();
2664         session->request_bounded_roll (start, end);
2665 }
2666
2667 void
2668 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2669 {
2670         session->audition_region (region);
2671 }
2672
2673 void
2674 Editor::build_interthread_progress_window ()
2675 {
2676         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2677
2678         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2679
2680         interthread_progress_window->set_border_width (12);
2681         interthread_progress_window->get_vbox()->set_spacing (6);
2682
2683         interthread_progress_label.set_alignment (0.5, 0.5);
2684
2685         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2686         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2687
2688         // GTK2FIX: this button needs a modifiable label
2689
2690         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2691         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2692
2693         interthread_cancel_button.add (interthread_cancel_label);
2694
2695         interthread_progress_window->set_default_size (200, 100);
2696 }
2697
2698 void
2699 Editor::interthread_cancel_clicked ()
2700 {
2701         if (current_interthread_info) {
2702                 current_interthread_info->cancel = true;
2703         }
2704 }
2705
2706 void
2707 Editor::region_from_selection ()
2708 {
2709         if (clicked_trackview == 0) {
2710                 return;
2711         }
2712
2713         if (selection->time.empty()) {
2714                 return;
2715         }
2716
2717         nframes64_t start = selection->time[clicked_selection].start;
2718         nframes64_t end = selection->time[clicked_selection].end;
2719
2720         nframes64_t selection_cnt = end - start + 1;
2721
2722         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2723                 boost::shared_ptr<AudioRegion> current;
2724                 boost::shared_ptr<Region> current_r;
2725                 boost::shared_ptr<Playlist> pl;
2726
2727                 nframes64_t internal_start;
2728                 string new_name;
2729
2730                 if ((pl = (*i)->playlist()) == 0) {
2731                         continue;
2732                 }
2733
2734                 if ((current_r = pl->top_region_at (start)) == 0) {
2735                         continue;
2736                 }
2737
2738                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2739                 // FIXME: audio only
2740                 if (current != 0) {
2741                         internal_start = start - current->position();
2742                         session->region_name (new_name, current->name(), true);
2743                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2744                 }
2745         }
2746 }
2747
2748 void
2749 Editor::create_region_from_selection (vector<boost::shared_ptr<AudioRegion> >& new_regions)
2750 {
2751         if (selection->time.empty() || selection->tracks.empty()) {
2752                 return;
2753         }
2754
2755         nframes64_t start = selection->time[clicked_selection].start;
2756         nframes64_t end = selection->time[clicked_selection].end;
2757
2758         sort_track_selection ();
2759
2760         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2761
2762                 boost::shared_ptr<AudioRegion> current;
2763                 boost::shared_ptr<Region> current_r;
2764                 boost::shared_ptr<Playlist> playlist;
2765                 nframes64_t internal_start;
2766                 string new_name;
2767
2768                 if ((playlist = (*i)->playlist()) == 0) {
2769                         continue;
2770                 }
2771
2772                 if ((current_r = playlist->top_region_at(start)) == 0) {
2773                         continue;
2774                 }
2775
2776                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2777                         continue;
2778                 }
2779
2780                 internal_start = start - current->position();
2781                 session->region_name (new_name, current->name(), true);
2782
2783                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2784         }
2785 }
2786
2787 void
2788 Editor::split_multichannel_region ()
2789 {
2790         RegionSelection rs;
2791
2792         get_regions_for_action (rs);
2793
2794         if (rs.empty()) {
2795                 return;
2796         }
2797
2798         vector<boost::shared_ptr<AudioRegion> > v;
2799
2800         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2801
2802                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2803
2804                 if (!arv || arv->audio_region()->n_channels() < 2) {
2805                         continue;
2806                 }
2807
2808                 (arv)->audio_region()->separate_by_channel (*session, v);
2809         }
2810 }
2811
2812 void
2813 Editor::new_region_from_selection ()
2814 {
2815         region_from_selection ();
2816         cancel_selection ();
2817 }
2818
2819 static void
2820 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2821 {
2822         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2823         case OverlapNone:
2824                 break;
2825         default:
2826                 rs->push_back (rv);
2827         }
2828 }
2829
2830 void
2831 Editor::separate_regions_between (const TimeSelection& ts)
2832 {
2833         bool in_command = false;
2834         boost::shared_ptr<Playlist> playlist;
2835         RegionSelection new_selection;
2836         TrackSelection tmptracks;
2837
2838         if (selection->tracks.empty()) {
2839
2840                 /* use tracks with selected regions */
2841
2842                 RegionSelection rs;
2843
2844                 get_regions_for_action (rs);
2845
2846                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2847                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2848
2849                         if (find (tmptracks.begin(), tmptracks.end(), tv) == tmptracks.end()) {
2850                                 tmptracks.push_back (tv);
2851                         }
2852                 }
2853
2854                 if (tmptracks.empty()) {
2855                         /* no regions selected: do nothing */
2856                         return;
2857                 }
2858
2859         } else {
2860
2861                 tmptracks = selection->tracks;
2862
2863         }
2864
2865         sort_track_selection (&tmptracks);
2866
2867         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2868
2869                 AudioTimeAxisView* atv;
2870
2871                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2872
2873                         if (atv->is_audio_track()) {
2874
2875                                 /* no edits to destructive tracks */
2876
2877                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2878                                         continue;
2879                                 }
2880
2881                                 if ((playlist = atv->playlist()) != 0) {
2882
2883
2884                                         XMLNode *before;
2885                                         bool got_some;
2886
2887                                         before = &(playlist->get_state());
2888                                         got_some = false;
2889
2890                                         /* XXX need to consider musical time selections here at some point */
2891
2892                                         double speed = atv->get_diskstream()->speed();
2893
2894
2895                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2896
2897                                                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2898                                                 latest_regionviews.clear ();
2899
2900                                                 playlist->partition ((nframes64_t)((*t).start * speed), (nframes64_t)((*t).end * speed), true);
2901
2902                                                 c.disconnect ();
2903
2904                                                 if (!latest_regionviews.empty()) {
2905
2906                                                         got_some = true;
2907
2908                                                         atv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2909
2910                                                         if (!in_command) {
2911                                                                 begin_reversible_command (_("separate"));
2912                                                                 in_command = true;
2913                                                         }
2914
2915                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2916
2917                                                 }
2918                                         }
2919
2920                                         if (!got_some) {
2921                                                 delete before;
2922                                         }
2923                                 }
2924                         }
2925                 }
2926         }
2927
2928         if (in_command) {
2929                 selection->set (new_selection);
2930                 set_mouse_mode (MouseObject);
2931
2932                 commit_reversible_command ();
2933         }
2934 }
2935
2936 void
2937 Editor::separate_region_from_selection ()
2938 {
2939         /* preferentially use *all* ranges in the time selection if we're in range mode
2940            to allow discontiguous operation, since get_edit_op_range() currently
2941            returns a single range.
2942         */
2943
2944         if (mouse_mode == MouseRange && !selection->time.empty()) {
2945
2946                 separate_regions_between (selection->time);
2947
2948         } else {
2949
2950                 nframes64_t start;
2951                 nframes64_t end;
2952
2953                 if (get_edit_op_range (start, end)) {
2954
2955                         AudioRange ar (start, end, 1);
2956                         TimeSelection ts;
2957                         ts.push_back (ar);
2958
2959                         separate_regions_between (ts);
2960                 }
2961         }
2962 }
2963
2964 void
2965 Editor::separate_region_from_punch ()
2966 {
2967         Location* loc  = session->locations()->auto_punch_location();
2968         if (loc) {
2969                 separate_regions_using_location (*loc);
2970         }
2971 }
2972
2973 void
2974 Editor::separate_region_from_loop ()
2975 {
2976         Location* loc  = session->locations()->auto_loop_location();
2977         if (loc) {
2978                 separate_regions_using_location (*loc);
2979         }
2980 }
2981
2982 void
2983 Editor::separate_regions_using_location (Location& loc)
2984 {
2985         if (loc.is_mark()) {
2986                 return;
2987         }
2988
2989         AudioRange ar (loc.start(), loc.end(), 1);
2990         TimeSelection ts;
2991
2992         ts.push_back (ar);
2993
2994         separate_regions_between (ts);
2995 }
2996
2997 void
2998 Editor::crop_region_to_selection ()
2999 {
3000         if (!selection->time.empty()) {
3001
3002                 crop_region_to (selection->time.start(), selection->time.end_frame());
3003
3004         } else {
3005
3006                 nframes64_t start;
3007                 nframes64_t end;
3008
3009                 if (get_edit_op_range (start, end)) {
3010                         crop_region_to (start, end);
3011                 }
3012         }
3013
3014 }
3015
3016 void
3017 Editor::crop_region_to (nframes64_t start, nframes64_t end)
3018 {
3019         vector<boost::shared_ptr<Playlist> > playlists;
3020         boost::shared_ptr<Playlist> playlist;
3021         TrackSelection* ts;
3022
3023         if (selection->tracks.empty()) {
3024                 ts = &track_views;
3025         } else {
3026                 sort_track_selection ();
3027                 ts = &selection->tracks;
3028         }
3029
3030         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3031
3032                 AudioTimeAxisView* atv;
3033
3034                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
3035
3036                         if (atv->is_audio_track()) {
3037
3038                                 /* no edits to destructive tracks */
3039
3040                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
3041                                         continue;
3042                                 }
3043
3044                                 if ((playlist = atv->playlist()) != 0) {
3045                                         playlists.push_back (playlist);
3046                                 }
3047                         }
3048                 }
3049         }
3050
3051         if (playlists.empty()) {
3052                 return;
3053         }
3054
3055         nframes64_t the_start;
3056         nframes64_t the_end;
3057         nframes64_t cnt;
3058
3059         begin_reversible_command (_("trim to selection"));
3060
3061         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3062
3063                 boost::shared_ptr<Region> region;
3064
3065                 the_start = start;
3066
3067                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3068                         continue;
3069                 }
3070
3071                 /* now adjust lengths to that we do the right thing
3072                    if the selection extends beyond the region
3073                 */
3074
3075                 the_start = max (the_start, (nframes64_t) region->position());
3076                 if (max_frames - the_start < region->length()) {
3077                         the_end = the_start + region->length() - 1;
3078                 } else {
3079                         the_end = max_frames;
3080                 }
3081                 the_end = min (end, the_end);
3082                 cnt = the_end - the_start + 1;
3083
3084                 XMLNode &before = (*i)->get_state();
3085                 region->trim_to (the_start, cnt, this);
3086                 XMLNode &after = (*i)->get_state();
3087                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3088         }
3089
3090         commit_reversible_command ();
3091 }
3092
3093 void
3094 Editor::region_fill_track ()
3095 {
3096         nframes64_t end;
3097         RegionSelection rs;
3098
3099         get_regions_for_action (rs);
3100
3101         if (!session || rs.empty()) {
3102                 return;
3103         }
3104
3105         end = session->current_end_frame ();
3106
3107         begin_reversible_command (_("region fill"));
3108
3109         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3110
3111                 boost::shared_ptr<Region> region ((*i)->region());
3112
3113                 // FIXME
3114                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3115                 if (!ar)
3116                         continue;
3117
3118                 boost::shared_ptr<Playlist> pl = region->playlist();
3119
3120                 if (end <= region->last_frame()) {
3121                         return;
3122                 }
3123
3124                 double times = (double) (end - region->last_frame()) / (double) region->length();
3125
3126                 if (times == 0) {
3127                         return;
3128                 }
3129
3130                 XMLNode &before = pl->get_state();
3131                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3132                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3133         }
3134
3135         commit_reversible_command ();
3136 }
3137
3138 void
3139 Editor::region_fill_selection ()
3140 {
3141         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3142                 return;
3143         }
3144
3145         if (selection->time.empty()) {
3146                 return;
3147         }
3148
3149
3150         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
3151
3152         if (selected->count_selected_rows() != 1) {
3153                 return;
3154         }
3155
3156         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
3157         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
3158
3159         nframes64_t start = selection->time[clicked_selection].start;
3160         nframes64_t end = selection->time[clicked_selection].end;
3161
3162         boost::shared_ptr<Playlist> playlist;
3163
3164         if (selection->tracks.empty()) {
3165                 return;
3166         }
3167
3168         nframes64_t selection_length = end - start;
3169         float times = (float)selection_length / region->length();
3170
3171         begin_reversible_command (_("fill selection"));
3172
3173         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3174
3175                 if ((playlist = (*i)->playlist()) == 0) {
3176                         continue;
3177                 }
3178
3179                 XMLNode &before = playlist->get_state();
3180                 playlist->add_region (RegionFactory::create (region), start, times);
3181                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3182         }
3183
3184         commit_reversible_command ();
3185 }
3186
3187 void
3188 Editor::set_region_sync_from_edit_point ()
3189 {
3190         nframes64_t where = get_preferred_edit_position ();
3191         RegionSelection rs;
3192         get_regions_for_action (rs);
3193         set_sync_point (where, rs);
3194 }
3195
3196 void
3197 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3198 {
3199         bool in_command = false;
3200
3201         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3202
3203                 if (!(*r)->region()->covers (where)) {
3204                         continue;
3205                 }
3206
3207                 boost::shared_ptr<Region> region ((*r)->region());
3208
3209                 if (!in_command) {
3210                         begin_reversible_command (_("set sync point"));
3211                         in_command = true;
3212                 }
3213
3214                 XMLNode &before = region->playlist()->get_state();
3215                 region->set_sync_position (get_preferred_edit_position());
3216                 XMLNode &after = region->playlist()->get_state();
3217                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3218         }
3219
3220         if (in_command) {
3221                 commit_reversible_command ();
3222         }
3223 }
3224
3225 void
3226 Editor::remove_region_sync ()
3227 {
3228         RegionSelection rs;
3229
3230         get_regions_for_action (rs);
3231
3232         if (rs.empty()) {
3233                 return;
3234         }
3235
3236         begin_reversible_command (_("remove sync"));
3237         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3238
3239                 XMLNode &before = (*i)->region()->playlist()->get_state();
3240                 (*i)->region()->clear_sync_position ();
3241                 XMLNode &after = (*i)->region()->playlist()->get_state();
3242                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3243         }
3244         commit_reversible_command ();
3245 }
3246
3247 void
3248 Editor::naturalize ()
3249 {
3250         RegionSelection rs;
3251
3252         get_regions_for_action (rs);
3253
3254         if (rs.empty()) {
3255                 return;
3256         }
3257
3258         begin_reversible_command (_("naturalize"));
3259         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3260                 XMLNode &before = (*i)->region()->get_state();
3261                 (*i)->region()->move_to_natural_position (this);
3262                 XMLNode &after = (*i)->region()->get_state();
3263                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3264         }
3265         commit_reversible_command ();
3266 }
3267
3268 void
3269 Editor::align (RegionPoint what)
3270 {
3271         RegionSelection rs;
3272
3273         get_regions_for_action (rs);
3274         nframes64_t where = get_preferred_edit_position();
3275
3276         if (!rs.empty()) {
3277                 align_selection (what, where, rs);
3278         } else {
3279
3280                 RegionSelection rs;
3281                 get_regions_at (rs, where, selection->tracks);
3282                 align_selection (what, where, rs);
3283         }
3284 }
3285
3286 void
3287 Editor::align_relative (RegionPoint what)
3288 {
3289         nframes64_t where = get_preferred_edit_position();
3290         RegionSelection rs;
3291
3292         get_regions_for_action (rs);
3293
3294         if (!rs.empty()) {
3295                 align_selection_relative (what, where, rs);
3296         }
3297 }
3298
3299 struct RegionSortByTime {
3300     bool operator() (const AudioRegionView* a, const AudioRegionView* b) {
3301             return a->region()->position() < b->region()->position();
3302     }
3303 };
3304
3305 void
3306 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3307 {
3308         if (rs.empty()) {
3309                 return;
3310         }
3311
3312         nframes64_t distance = 0;
3313         nframes64_t pos = 0;
3314         int dir = 1;
3315
3316         list<RegionView*> sorted;
3317         rs.by_position (sorted);
3318
3319         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3320
3321         switch (point) {
3322         case Start:
3323                 pos = position;
3324                 if (position > r->position()) {
3325                         distance = position - r->position();
3326                 } else {
3327                         distance = r->position() - position;
3328                         dir = -1;
3329                 }
3330                 break;
3331
3332         case End:
3333                 if (position > r->last_frame()) {
3334                         distance = position - r->last_frame();
3335                         pos = r->position() + distance;
3336                 } else {
3337                         distance = r->last_frame() - position;
3338                         pos = r->position() - distance;
3339                         dir = -1;
3340                 }
3341                 break;
3342
3343         case SyncPoint:
3344                 pos = r->adjust_to_sync (position);
3345                 if (pos > r->position()) {
3346                         distance = pos - r->position();
3347                 } else {
3348                         distance = r->position() - pos;
3349                         dir = -1;
3350                 }
3351                 break;
3352         }
3353
3354         if (pos == r->position()) {
3355                 return;
3356         }
3357
3358         begin_reversible_command (_("align selection (relative)"));
3359
3360         /* move first one specially */
3361
3362         XMLNode &before = r->playlist()->get_state();
3363         r->set_position (pos, this);
3364         XMLNode &after = r->playlist()->get_state();
3365         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3366
3367         /* move rest by the same amount */
3368
3369         sorted.pop_front();
3370
3371         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3372
3373                 boost::shared_ptr<Region> region ((*i)->region());
3374
3375                 XMLNode &before = region->playlist()->get_state();
3376
3377                 if (dir > 0) {
3378                         region->set_position (region->position() + distance, this);
3379                 } else {
3380                         region->set_position (region->position() - distance, this);
3381                 }
3382
3383                 XMLNode &after = region->playlist()->get_state();
3384                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3385
3386         }
3387
3388         commit_reversible_command ();
3389 }
3390
3391 void
3392 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3393 {
3394         if (rs.empty()) {
3395                 return;
3396         }
3397
3398         begin_reversible_command (_("align selection"));
3399
3400         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3401                 align_region_internal ((*i)->region(), point, position);
3402         }
3403
3404         commit_reversible_command ();
3405 }
3406
3407 void
3408 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3409 {
3410         begin_reversible_command (_("align region"));
3411         align_region_internal (region, point, position);
3412         commit_reversible_command ();
3413 }
3414
3415 void
3416 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3417 {
3418         XMLNode &before = region->playlist()->get_state();
3419
3420         switch (point) {
3421         case SyncPoint:
3422                 region->set_position (region->adjust_to_sync (position), this);
3423                 break;
3424
3425         case End:
3426                 if (position > region->length()) {
3427                         region->set_position (position - region->length(), this);
3428                 }
3429                 break;
3430
3431         case Start:
3432                 region->set_position (position, this);
3433                 break;
3434         }
3435
3436         XMLNode &after = region->playlist()->get_state();
3437         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3438 }
3439
3440 void
3441 Editor::trim_region_to_loop ()
3442 {
3443         Location* loc = session->locations()->auto_loop_location();
3444         if (!loc) {
3445                 return;
3446         }
3447         trim_region_to_location (*loc, _("trim to loop"));
3448 }
3449
3450 void
3451 Editor::trim_region_to_punch ()
3452 {
3453         Location* loc = session->locations()->auto_punch_location();
3454         if (!loc) {
3455                 return;
3456         }
3457         trim_region_to_location (*loc, _("trim to punch"));
3458 }
3459
3460 void
3461 Editor::trim_region_to_location (const Location& loc, const char* str)
3462 {
3463         RegionSelection rs;
3464
3465         get_regions_for_action (rs);
3466
3467         begin_reversible_command (str);
3468
3469         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3470                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3471
3472                 if (!arv) {
3473                         continue;
3474                 }
3475
3476                 /* require region to span proposed trim */
3477
3478                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3479                 case OverlapInternal:
3480                         break;
3481                 default:
3482                         continue;
3483                 }
3484
3485                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3486
3487                 if (!atav) {
3488                         return;
3489                 }
3490
3491                 float speed = 1.0;
3492                 nframes64_t start;
3493                 nframes64_t end;
3494
3495                 if (atav->get_diskstream() != 0) {
3496                         speed = atav->get_diskstream()->speed();
3497                 }
3498
3499                 start = session_frame_to_track_frame (loc.start(), speed);
3500                 end = session_frame_to_track_frame (loc.end(), speed);
3501
3502                 XMLNode &before = arv->region()->playlist()->get_state();
3503                 arv->region()->trim_to (start, (end - start), this);
3504                 XMLNode &after = arv->region()->playlist()->get_state();
3505                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3506         }
3507
3508         commit_reversible_command ();
3509 }
3510
3511 void
3512 Editor::trim_region_to_edit_point ()
3513 {
3514         RegionSelection rs;
3515
3516         get_regions_for_action (rs);
3517
3518         nframes64_t where = get_preferred_edit_position();
3519
3520         begin_reversible_command (_("trim region start to edit point"));
3521
3522         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3523                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3524
3525                 if (!arv) {
3526                         continue;
3527                 }
3528
3529                 /* require region to cover trim */
3530
3531                 if (!arv->region()->covers (where)) {
3532                         continue;
3533                 }
3534
3535                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3536
3537                 if (!atav) {
3538                         return;
3539                 }
3540
3541                 float speed = 1.0;
3542
3543                 if (atav->get_diskstream() != 0) {
3544                         speed = atav->get_diskstream()->speed();
3545                 }
3546
3547                 XMLNode &before = arv->region()->playlist()->get_state();
3548                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3549                 XMLNode &after = arv->region()->playlist()->get_state();
3550                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3551         }
3552
3553         commit_reversible_command ();
3554 }
3555
3556 void
3557 Editor::trim_region_from_edit_point ()
3558 {
3559         RegionSelection rs;
3560
3561         get_regions_for_action (rs);
3562
3563         nframes64_t where = get_preferred_edit_position();
3564
3565         begin_reversible_command (_("trim region end to edit point"));
3566
3567         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3568                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3569
3570                 if (!arv) {
3571                         continue;
3572                 }
3573
3574                 /* require region to cover trim */
3575
3576                 if (!arv->region()->covers (where)) {
3577                         continue;
3578                 }
3579
3580                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3581
3582                 if (!atav) {
3583                         return;
3584                 }
3585
3586                 float speed = 1.0;
3587
3588                 if (atav->get_diskstream() != 0) {
3589                         speed = atav->get_diskstream()->speed();
3590                 }
3591
3592                 XMLNode &before = arv->region()->playlist()->get_state();
3593                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3594                 XMLNode &after = arv->region()->playlist()->get_state();
3595                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3596         }
3597
3598         commit_reversible_command ();
3599 }
3600
3601 void
3602 Editor::unfreeze_route ()
3603 {
3604         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3605                 return;
3606         }
3607
3608         clicked_audio_trackview->audio_track()->unfreeze ();
3609 }
3610
3611 void*
3612 Editor::_freeze_thread (void* arg)
3613 {
3614         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3615         return static_cast<Editor*>(arg)->freeze_thread ();
3616 }
3617
3618 void*
3619 Editor::freeze_thread ()
3620 {
3621         clicked_audio_trackview->audio_track()->freeze (*current_interthread_info);
3622         return 0;
3623 }
3624
3625 gint
3626 Editor::freeze_progress_timeout (void *arg)
3627 {
3628         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3629         return !(current_interthread_info->done || current_interthread_info->cancel);
3630 }
3631
3632 void
3633 Editor::freeze_route ()
3634 {
3635         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3636                 return;
3637         }
3638
3639         InterThreadInfo itt;
3640
3641         if (interthread_progress_window == 0) {
3642                 build_interthread_progress_window ();
3643         }
3644
3645         WindowTitle title(Glib::get_application_name());
3646         title += _("Freeze");
3647         interthread_progress_window->set_title (title.get_string());
3648         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3649         interthread_progress_window->show_all ();
3650         interthread_progress_bar.set_fraction (0.0f);
3651         interthread_progress_label.set_text ("");
3652         interthread_cancel_label.set_text (_("Cancel Freeze"));
3653         current_interthread_info = &itt;
3654
3655         interthread_progress_connection =
3656           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3657
3658         itt.done = false;
3659         itt.cancel = false;
3660         itt.progress = 0.0f;
3661
3662         pthread_attr_t attr;
3663         pthread_attr_init(&attr);
3664         pthread_attr_setstacksize(&attr, 500000);
3665
3666         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3667
3668         pthread_attr_destroy(&attr);
3669
3670         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3671
3672         while (!itt.done && !itt.cancel) {
3673                 gtk_main_iteration ();
3674         }
3675
3676         interthread_progress_connection.disconnect ();
3677         interthread_progress_window->hide_all ();
3678         current_interthread_info = 0;
3679         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3680 }
3681
3682 void
3683 Editor::bounce_range_selection (bool replace, bool enable_processing)
3684 {
3685         if (selection->time.empty()) {
3686                 return;
3687         }
3688
3689         TrackSelection views = selection->tracks;
3690
3691         nframes64_t start = selection->time[clicked_selection].start;
3692         nframes64_t end = selection->time[clicked_selection].end;
3693         nframes64_t cnt = end - start + 1;
3694
3695         begin_reversible_command (_("bounce range"));
3696
3697         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3698
3699                 AudioTimeAxisView* atv;
3700
3701                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) == 0) {
3702                         continue;
3703                 }
3704
3705                 boost::shared_ptr<Playlist> playlist;
3706
3707                 if ((playlist = atv->playlist()) == 0) {
3708                         return;
3709                 }
3710
3711                 InterThreadInfo itt;
3712
3713                 itt.done = false;
3714                 itt.cancel = false;
3715                 itt.progress = false;
3716
3717                 XMLNode &before = playlist->get_state();
3718                 boost::shared_ptr<Region> r = atv->audio_track()->bounce_range (start, start+cnt, itt, enable_processing);
3719
3720                 if (replace) {
3721                         list<AudioRange> ranges;
3722                         ranges.push_back (AudioRange (start, start+cnt, 0));
3723                         playlist->cut (ranges); // discard result
3724                         playlist->add_region (r, start);
3725                 }
3726
3727                 XMLNode &after = playlist->get_state();
3728                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3729         }
3730
3731         commit_reversible_command ();
3732 }
3733
3734 void
3735 Editor::cut ()
3736 {
3737         cut_copy (Cut);
3738 }
3739
3740 void
3741 Editor::copy ()
3742 {
3743         cut_copy (Copy);
3744 }
3745
3746 void
3747 Editor::cut_copy (CutCopyOp op)
3748 {
3749         /* only cancel selection if cut/copy is successful.*/
3750
3751         string opname;
3752
3753         switch (op) {
3754         case Cut:
3755                 opname = _("cut");
3756                 break;
3757         case Copy:
3758                 opname = _("copy");
3759                 break;
3760         case Clear:
3761                 opname = _("clear");
3762                 break;
3763         }
3764
3765         /* if we're deleting something, and the mouse is still pressed,
3766            the thing we started a drag for will be gone when we release
3767            the mouse button(s). avoid this. see part 2 at the end of
3768            this function.
3769         */
3770
3771         if (op == Cut || op == Clear) {
3772                 if (drag_info.item) {
3773                         drag_info.item->ungrab (0);
3774                         drag_info.item = 0;
3775                 }
3776         }
3777
3778         cut_buffer->clear ();
3779
3780         if (entered_marker) {
3781
3782                 /* cut/delete op while pointing at a marker */
3783
3784                 bool ignored;
3785                 Location* loc = find_location_from_marker (entered_marker, ignored);
3786
3787                 if (session && loc) {
3788                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3789                 }
3790
3791                 break_drag ();
3792
3793                 return;
3794         }
3795
3796         RegionSelection rs;
3797
3798         /* we only want to cut regions if some are selected */
3799
3800         if (!selection->regions.empty()) {
3801                 get_regions_for_action (rs);
3802         }
3803
3804         switch (current_mouse_mode()) {
3805         case MouseObject:
3806                 if (!rs.empty() || !selection->points.empty()) {
3807
3808                         begin_reversible_command (opname + _(" objects"));
3809
3810                         if (!rs.empty()) {
3811                                 cut_copy_regions (op, rs);
3812
3813                                 if (op == Cut) {
3814                                         selection->clear_regions ();
3815                                 }
3816                         }
3817
3818                         if (!selection->points.empty()) {
3819                                 cut_copy_points (op);
3820
3821                                 if (op == Cut) {
3822                                         selection->clear_points ();
3823                                 }
3824                         }
3825
3826                         commit_reversible_command ();
3827                         break; // terminate case statement here
3828                 }
3829                 if (!selection->time.empty()) {
3830                         /* don't cause suprises */
3831                         break;
3832                 }
3833                 // fall thru if there was nothing selected
3834
3835         case MouseRange:
3836                 if (selection->time.empty()) {
3837                         nframes64_t start, end;
3838                         if (!get_edit_op_range (start, end)) {
3839                                 return;
3840                         }
3841                         selection->set ((TimeAxisView*) 0, start, end);
3842                 }
3843
3844                 begin_reversible_command (opname + _(" range"));
3845                 cut_copy_ranges (op);
3846                 commit_reversible_command ();
3847
3848                 if (op == Cut) {
3849                         selection->clear_time ();
3850                 }
3851
3852                 break;
3853
3854         default:
3855                 break;
3856         }
3857
3858
3859         if (op == Cut || op == Clear) {
3860                 break_drag ();
3861         }
3862 }
3863
3864 void
3865 Editor::cut_copy_points (CutCopyOp op)
3866 {
3867         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3868
3869                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3870
3871                 if (atv) {
3872                         atv->cut_copy_clear_objects (selection->points, op);
3873                 }
3874         }
3875 }
3876
3877 struct PlaylistState {
3878     boost::shared_ptr<Playlist> playlist;
3879     XMLNode*  before;
3880 };
3881
3882 struct lt_playlist {
3883     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3884             return a.playlist < b.playlist;
3885     }
3886 };
3887
3888 struct PlaylistMapping {
3889     TimeAxisView* tv;
3890     boost::shared_ptr<AudioPlaylist> pl;
3891
3892     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3893 };
3894
3895 void
3896 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3897 {
3898         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3899            a map when we want ordered access to both elements. i think.
3900         */
3901
3902         vector<PlaylistMapping> pmap;
3903
3904         nframes64_t first_position = max_frames;
3905
3906         set<PlaylistState, lt_playlist> freezelist;
3907         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3908
3909         /* get ordering correct before we cut/copy */
3910
3911         rs.sort_by_position_and_track ();
3912
3913         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3914
3915                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
3916
3917                 if (op == Cut || op == Clear) {
3918                         boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3919
3920                         if (pl) {
3921
3922                                 PlaylistState before;
3923                                 before.playlist = pl;
3924                                 before.before = &pl->get_state();
3925
3926                                 insert_result = freezelist.insert (before);
3927
3928                                 if (insert_result.second) {
3929                                         pl->freeze ();
3930                                 }
3931                         }
3932                 }
3933
3934                 TimeAxisView* tv = &(*x)->get_trackview();
3935                 vector<PlaylistMapping>::iterator z;
3936
3937                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3938                         if ((*z).tv == tv) {
3939                                 break;
3940                         }
3941                 }
3942
3943                 if (z == pmap.end()) {
3944                         pmap.push_back (PlaylistMapping (tv));
3945                 }
3946         }
3947
3948         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3949
3950                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3951
3952                 if (!pl) {
3953                         /* impossible, but this handles it for the future */
3954                         continue;
3955                 }
3956
3957                 TimeAxisView& tv = (*x)->get_trackview();
3958                 boost::shared_ptr<AudioPlaylist> npl;
3959                 RegionSelection::iterator tmp;
3960
3961                 tmp = x;
3962                 ++tmp;
3963
3964                 vector<PlaylistMapping>::iterator z;
3965
3966                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3967                         if ((*z).tv == &tv) {
3968                                 break;
3969                         }
3970                 }
3971
3972                 assert (z != pmap.end());
3973
3974                 if (!(*z).pl) {
3975                         npl = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (*session, "cutlist", true));
3976                         npl->freeze();
3977                         (*z).pl = npl;
3978                 } else {
3979                         npl = (*z).pl;
3980                 }
3981
3982                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>((*x)->region());
3983                 boost::shared_ptr<Region> _xx;
3984
3985                 switch (op) {
3986                 case Cut:
3987                         if (!ar) break;
3988
3989                         _xx = RegionFactory::create ((*x)->region());
3990                         npl->add_region (_xx, (*x)->region()->position() - first_position);
3991                         pl->remove_region (((*x)->region()));
3992                         break;
3993
3994                 case Copy:
3995                         if (!ar) break;
3996
3997                         /* copy region before adding, so we're not putting same object into two different playlists */
3998                         npl->add_region (RegionFactory::create ((*x)->region()), (*x)->region()->position() - first_position);
3999                         break;
4000
4001                 case Clear:
4002                         pl->remove_region (((*x)->region()));
4003                         break;
4004                 }
4005
4006                 x = tmp;
4007         }
4008
4009         list<boost::shared_ptr<Playlist> > foo;
4010
4011         /* the pmap is in the same order as the tracks in which selected regions occured */
4012
4013         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4014                 (*i).pl->thaw();
4015                 foo.push_back ((*i).pl);
4016         }
4017
4018
4019         if (!foo.empty()) {
4020                 cut_buffer->set (foo);
4021         }
4022
4023         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4024                 (*pl).playlist->thaw ();
4025                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4026         }
4027 }
4028
4029 void
4030 Editor::cut_copy_ranges (CutCopyOp op)
4031 {
4032         TrackSelection* ts;
4033         TrackSelection entered;
4034
4035         if (selection->tracks.empty()) {
4036                 if (!entered_track) {
4037                         return;
4038                 }
4039                 entered.push_back (entered_track);
4040                 ts = &entered;
4041         } else {
4042                 ts = &selection->tracks;
4043         }
4044
4045         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4046                 (*i)->cut_copy_clear (*selection, op);
4047         }
4048 }
4049
4050 void
4051 Editor::paste (float times)
4052 {
4053         paste_internal (get_preferred_edit_position(), times);
4054 }
4055
4056 void
4057 Editor::mouse_paste ()
4058 {
4059         nframes64_t where;
4060         bool ignored;
4061
4062         if (!mouse_frame (where, ignored)) {
4063                 return;
4064         }
4065
4066         snap_to (where);
4067         paste_internal (where, 1);
4068 }
4069
4070 void
4071 Editor::paste_internal (nframes64_t position, float times)
4072 {
4073         bool commit = false;
4074
4075         if (cut_buffer->empty()) {
4076                 return;
4077         }
4078
4079         if (position == max_frames) {
4080                 position = get_preferred_edit_position();
4081         }
4082
4083         begin_reversible_command (_("paste"));
4084
4085         TrackSelection ts;
4086         TrackSelection::iterator i;
4087         size_t nth;
4088
4089         /* get everything in the correct order */
4090
4091
4092         if (!selection->tracks.empty()) {
4093                 sort_track_selection ();
4094                 ts = selection->tracks;
4095         } else if (entered_track) {
4096                 ts.push_back (entered_track);
4097         }
4098
4099         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4100
4101                 /* undo/redo is handled by individual tracks */
4102
4103                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
4104                         commit = true;
4105                 }
4106         }
4107
4108         if (commit) {
4109                 commit_reversible_command ();
4110         }
4111 }
4112
4113 void
4114 Editor::paste_named_selection (float times)
4115 {
4116         TrackSelection::iterator t;
4117
4118         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4119
4120         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4121                 return;
4122         }
4123
4124         TreeModel::iterator i = selected->get_selected();
4125         NamedSelection* ns = (*i)[named_selection_columns.selection];
4126
4127         list<boost::shared_ptr<Playlist> >::iterator chunk;
4128         list<boost::shared_ptr<Playlist> >::iterator tmp;
4129
4130         chunk = ns->playlists.begin();
4131
4132         begin_reversible_command (_("paste chunk"));
4133
4134         sort_track_selection ();
4135
4136         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4137
4138                 AudioTimeAxisView* atv;
4139                 boost::shared_ptr<Playlist> pl;
4140                 boost::shared_ptr<AudioPlaylist> apl;
4141
4142                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*t)) == 0) {
4143                         continue;
4144                 }
4145
4146                 if ((pl = atv->playlist()) == 0) {
4147                         continue;
4148                 }
4149
4150                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4151                         continue;
4152                 }
4153
4154                 tmp = chunk;
4155                 ++tmp;
4156
4157                 XMLNode &before = apl->get_state();
4158                 apl->paste (*chunk, get_preferred_edit_position(), times);
4159                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4160
4161                 if (tmp != ns->playlists.end()) {
4162                         chunk = tmp;
4163                 }
4164         }
4165
4166         commit_reversible_command();
4167 }
4168
4169 void
4170 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4171 {
4172         boost::shared_ptr<Playlist> playlist;
4173         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4174         RegionSelection foo;
4175
4176         begin_reversible_command (_("duplicate region"));
4177
4178         selection->clear_regions ();
4179
4180         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4181
4182                 boost::shared_ptr<Region> r ((*i)->region());
4183
4184                 TimeAxisView& tv = (*i)->get_time_axis_view();
4185                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (&tv);
4186
4187                 latest_regionviews.clear ();
4188                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4189
4190                 playlist = (*i)->region()->playlist();
4191                 XMLNode &before = playlist->get_state();
4192                 playlist->duplicate (r, r->last_frame() + 1, times);
4193                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4194
4195                 c.disconnect ();
4196
4197                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4198         }
4199
4200         commit_reversible_command ();
4201
4202         if (!foo.empty()) {
4203                 selection->set (foo);
4204         }
4205 }
4206
4207 void
4208 Editor::duplicate_selection (float times)
4209 {
4210         if (selection->time.empty() || selection->tracks.empty()) {
4211                 return;
4212         }
4213
4214         boost::shared_ptr<Playlist> playlist;
4215         vector<boost::shared_ptr<AudioRegion> > new_regions;
4216         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
4217
4218         create_region_from_selection (new_regions);
4219
4220         if (new_regions.empty()) {
4221                 return;
4222         }
4223
4224         begin_reversible_command (_("duplicate selection"));
4225
4226         ri = new_regions.begin();
4227
4228         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4229                 if ((playlist = (*i)->playlist()) == 0) {
4230                         continue;
4231                 }
4232                 XMLNode &before = playlist->get_state();
4233                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4234                 XMLNode &after = playlist->get_state();
4235                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4236
4237                 ++ri;
4238                 if (ri == new_regions.end()) {
4239                         --ri;
4240                 }
4241         }
4242
4243         commit_reversible_command ();
4244 }
4245
4246 void
4247 Editor::reset_point_selection ()
4248 {
4249         /* reset all selected points to the relevant default value */
4250
4251         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4252
4253                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4254
4255                 if (atv) {
4256                         atv->reset_objects (selection->points);
4257                 }
4258         }
4259 }
4260
4261 void
4262 Editor::center_playhead ()
4263 {
4264         float page = canvas_width * frames_per_unit;
4265         center_screen_internal (playhead_cursor->current_frame, page);
4266 }
4267
4268 void
4269 Editor::center_edit_point ()
4270 {
4271         float page = canvas_width * frames_per_unit;
4272         center_screen_internal (get_preferred_edit_position(), page);
4273 }
4274
4275 void
4276 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4277 {
4278         begin_reversible_command (_("clear playlist"));
4279         XMLNode &before = playlist->get_state();
4280         playlist->clear ();
4281         XMLNode &after = playlist->get_state();
4282         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4283         commit_reversible_command ();
4284 }
4285
4286 void
4287 Editor::nudge_track (bool use_edit, bool forwards)
4288 {
4289         boost::shared_ptr<Playlist> playlist;
4290         nframes64_t distance;
4291         nframes64_t next_distance;
4292         nframes64_t start;
4293
4294         if (use_edit) {
4295                 start = get_preferred_edit_position();
4296         } else {
4297                 start = 0;
4298         }
4299
4300         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4301                 return;
4302         }
4303
4304         if (selection->tracks.empty()) {
4305                 return;
4306         }
4307
4308         begin_reversible_command (_("nudge track"));
4309
4310         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4311
4312                 if ((playlist = (*i)->playlist()) == 0) {
4313                         continue;
4314                 }
4315
4316                 XMLNode &before = playlist->get_state();
4317                 playlist->nudge_after (start, distance, forwards);
4318                 XMLNode &after = playlist->get_state();
4319                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4320         }
4321
4322         commit_reversible_command ();
4323 }
4324
4325 void
4326 Editor::remove_last_capture ()
4327 {
4328         vector<string> choices;
4329         string prompt;
4330
4331         if (!session) {
4332                 return;
4333         }
4334
4335         if (Config->get_verify_remove_last_capture()) {
4336                 prompt  = _("Do you really want to destroy the last capture?"
4337                             "\n(This is destructive and cannot be undone)");
4338
4339                 choices.push_back (_("No, do nothing."));
4340                 choices.push_back (_("Yes, destroy it."));
4341
4342                 Gtkmm2ext::Choice prompter (prompt, choices);
4343
4344                 if (prompter.run () == 1) {
4345                         session->remove_last_capture ();
4346                 }
4347
4348         } else {
4349                 session->remove_last_capture();
4350         }
4351 }
4352
4353 void
4354 Editor::normalize_region ()
4355 {
4356         RegionSelection rs;
4357
4358         get_regions_for_action (rs);
4359
4360         if (!session) {
4361                 return;
4362         }
4363
4364         if (rs.empty()) {
4365                 return;
4366         }
4367
4368         begin_reversible_command (_("normalize"));
4369
4370         track_canvas->get_window()->set_cursor (*wait_cursor);
4371         gdk_flush ();
4372
4373         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4374                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4375                 if (!arv)
4376                         continue;
4377                 XMLNode &before = arv->region()->get_state();
4378                 arv->audio_region()->normalize_to (0.0f);
4379                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4380         }
4381
4382         commit_reversible_command ();
4383         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4384 }
4385
4386
4387 void
4388 Editor::denormalize_region ()
4389 {
4390         if (!session) {
4391                 return;
4392         }
4393
4394         RegionSelection rs;
4395
4396         get_regions_for_action (rs);
4397
4398         if (rs.empty()) {
4399                 return;
4400         }
4401
4402         begin_reversible_command ("denormalize");
4403
4404         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4405                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4406                 if (!arv)
4407                         continue;
4408                 XMLNode &before = arv->region()->get_state();
4409                 arv->audio_region()->set_scale_amplitude (1.0f);
4410                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4411         }
4412
4413         commit_reversible_command ();
4414 }
4415
4416 void
4417 Editor::adjust_region_scale_amplitude (bool up)
4418 {
4419         if (!session) {
4420                 return;
4421         }
4422
4423         RegionSelection rs;
4424
4425         get_regions_for_action (rs);
4426
4427         if (rs.empty()) {
4428                 return;
4429         }
4430
4431         begin_reversible_command ("denormalize");
4432
4433         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4434                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4435                 if (!arv)
4436                         continue;
4437                 XMLNode &before = arv->region()->get_state();
4438
4439                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4440
4441                 if (up) {
4442                         fraction += 0.05;
4443                         fraction = min (fraction, 1.0);
4444                 } else {
4445                         fraction -= 0.05;
4446                         fraction = max (fraction, 0.0);
4447                 }
4448
4449                 if (!up && fraction <= 0) {
4450                         continue;
4451                 }
4452
4453                 fraction = slider_position_to_gain (fraction);
4454                 fraction = coefficient_to_dB (fraction);
4455                 fraction = dB_to_coefficient (fraction);
4456
4457                 if (up && fraction >= 2.0) {
4458                         continue;
4459                 }
4460
4461                 arv->audio_region()->set_scale_amplitude (fraction);
4462                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4463         }
4464
4465         commit_reversible_command ();
4466 }
4467
4468
4469 void
4470 Editor::reverse_region ()
4471 {
4472         if (!session) {
4473                 return;
4474         }
4475
4476         Reverse rev (*session);
4477         apply_filter (rev, _("reverse regions"));
4478 }
4479
4480 void
4481 Editor::apply_filter (AudioFilter& filter, string command)
4482 {
4483         RegionSelection rs;
4484
4485         get_regions_for_action (rs);
4486
4487         if (rs.empty()) {
4488                 return;
4489         }
4490
4491         begin_reversible_command (command);
4492
4493         track_canvas->get_window()->set_cursor (*wait_cursor);
4494         gdk_flush ();
4495
4496         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4497                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4498                 if (!arv)
4499                         continue;
4500
4501                 boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4502
4503                 RegionSelection::iterator tmp;
4504
4505                 tmp = r;
4506                 ++tmp;
4507
4508                 if (arv->audio_region()->apply (filter) == 0) {
4509
4510                         XMLNode &before = playlist->get_state();
4511                         playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4512                         XMLNode &after = playlist->get_state();
4513                         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4514                 } else {
4515                         goto out;
4516                 }
4517
4518                 r = tmp;
4519         }
4520
4521         commit_reversible_command ();
4522         rs.clear ();
4523
4524   out:
4525         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4526 }
4527
4528 void
4529 Editor::region_selection_op (void (Region::*pmf)(void))
4530 {
4531         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4532                 Region* region = (*i)->region().get();
4533                 (region->*pmf)();
4534         }
4535 }
4536
4537
4538 void
4539 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4540 {
4541         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4542                 Region* region = (*i)->region().get();
4543                 (region->*pmf)(arg);
4544         }
4545 }
4546
4547 void
4548 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4549 {
4550         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4551                 Region* region = (*i)->region().get();
4552                 (region->*pmf)(yn);
4553         }
4554 }
4555
4556 void
4557 Editor::external_edit_region ()
4558 {
4559         // XXX shouldn't this use get_regions_for_action(rs) too?
4560         if (!clicked_regionview) {
4561                 return;
4562         }
4563
4564         /* more to come */
4565 }
4566
4567 void
4568 Editor::brush (nframes64_t pos)
4569 {
4570         RegionSelection sel;
4571         RegionSelection rs;
4572
4573         get_regions_for_action (rs);
4574
4575         snap_to (pos);
4576
4577         if (rs.empty()) {
4578                 return;
4579         }
4580
4581         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4582                 mouse_brush_insert_region ((*i), pos);
4583         }
4584 }
4585
4586 void
4587 Editor::reset_region_gain_envelopes ()
4588 {
4589         RegionSelection rs;
4590
4591         get_regions_for_action (rs);
4592
4593         if (!session || rs.empty()) {
4594                 return;
4595         }
4596
4597         session->begin_reversible_command (_("reset region gain"));
4598
4599         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4600                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4601                 if (arv) {
4602                         AutomationList& alist (arv->audio_region()->envelope());
4603                         XMLNode& before (alist.get_state());
4604
4605                         arv->audio_region()->set_default_envelope ();
4606                         session->add_command (new MementoCommand<AutomationList>(arv->audio_region()->envelope(), &before, &alist.get_state()));
4607                 }
4608         }
4609
4610         session->commit_reversible_command ();
4611 }
4612
4613 void
4614 Editor::toggle_gain_envelope_visibility ()
4615 {
4616         RegionSelection rs;
4617
4618         get_regions_for_action (rs);
4619
4620         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4621                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4622                 if (arv) {
4623                         arv->set_envelope_visible (!arv->envelope_visible());
4624                 }
4625         }
4626 }
4627
4628 void
4629 Editor::toggle_gain_envelope_active ()
4630 {
4631         RegionSelection rs;
4632
4633         get_regions_for_action (rs);
4634
4635         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4636                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4637                 if (arv) {
4638                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4639                 }
4640         }
4641 }
4642
4643 void
4644 Editor::toggle_region_lock ()
4645 {
4646         RegionSelection rs;
4647
4648         get_regions_for_action (rs);
4649
4650         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4651                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4652                 if (arv) {
4653                         arv->audio_region()->set_locked (!arv->audio_region()->locked());
4654                 }
4655         }
4656 }
4657
4658 void
4659 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4660 {
4661         RegionSelection rs;
4662
4663         get_regions_for_action (rs);
4664
4665         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4666                 (*i)->region()->set_position_lock_style (ps);
4667         }
4668 }
4669
4670
4671 void
4672 Editor::toggle_region_mute ()
4673 {
4674         RegionSelection rs;
4675
4676         get_regions_for_action (rs);
4677
4678         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4679                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4680                 if (arv) {
4681                         arv->audio_region()->set_muted (!arv->audio_region()->muted());
4682                 }
4683         }
4684 }
4685
4686 void
4687 Editor::toggle_region_opaque ()
4688 {
4689         RegionSelection rs;
4690
4691         get_regions_for_action (rs);
4692
4693         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4694                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4695                 if (arv) {
4696                         arv->audio_region()->set_opaque (!arv->audio_region()->opaque());
4697                 }
4698         }
4699 }
4700
4701 void
4702 Editor::toggle_record_enable ()
4703 {
4704         bool new_state = false;
4705         bool first = true;
4706         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4707                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
4708                 if (!rtav)
4709                         continue;
4710                 if (!rtav->is_track())
4711                         continue;
4712
4713                 if (first) {
4714                         new_state = !rtav->track()->record_enabled();
4715                         first = false;
4716                 }
4717
4718                 rtav->track()->set_record_enable(new_state, this);
4719         }
4720 }
4721
4722
4723 void
4724 Editor::set_fade_length (bool in)
4725 {
4726         RegionSelection rs;
4727
4728         get_regions_for_action (rs);
4729
4730         /* we need a region to measure the offset from the start */
4731
4732         RegionView* rv;
4733
4734         if (!rs.empty()) {
4735                 rv = rs.front();
4736         } else if (entered_regionview) {
4737                 rv = entered_regionview;
4738         } else {
4739                 return;
4740         }
4741
4742         nframes64_t pos = get_preferred_edit_position();
4743         nframes64_t len;
4744         char* cmd;
4745
4746         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4747                 /* edit point is outside the relevant region */
4748                 return;
4749         }
4750
4751         if (in) {
4752                 if (pos <= rv->region()->position()) {
4753                         /* can't do it */
4754                         return;
4755                 }
4756                 len = pos - rv->region()->position();
4757                 cmd = _("set fade in length");
4758         } else {
4759                 if (pos >= rv->region()->last_frame()) {
4760                         /* can't do it */
4761                         return;
4762                 }
4763                 len = rv->region()->last_frame() - pos;
4764                 cmd = _("set fade out length");
4765         }
4766
4767         begin_reversible_command (cmd);
4768
4769         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4770                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4771
4772                 if (!tmp) {
4773                         return;
4774                 }
4775
4776                 AutomationList* alist;
4777                 if (in) {
4778                         alist = &tmp->audio_region()->fade_in();
4779                 } else {
4780                         alist = &tmp->audio_region()->fade_out();
4781                 }
4782
4783                 XMLNode &before = alist->get_state();
4784
4785                 if (in) {
4786                         tmp->audio_region()->set_fade_in_length (len);
4787                         tmp->audio_region()->set_fade_in_active (true);
4788                 } else {
4789                         tmp->audio_region()->set_fade_out_length (len);
4790                         tmp->audio_region()->set_fade_out_active (true);
4791                 }
4792
4793                 XMLNode &after = alist->get_state();
4794                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4795         }
4796
4797         commit_reversible_command ();
4798 }
4799
4800
4801 void
4802 Editor::toggle_fade_active (bool in)
4803 {
4804         RegionSelection rs;
4805
4806         get_regions_for_action (rs);
4807
4808         if (rs.empty()) {
4809                 return;
4810         }
4811
4812         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4813         bool have_switch = false;
4814         bool yn = false;
4815
4816         begin_reversible_command (cmd);
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                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4826
4827                 /* make the behaviour consistent across all regions */
4828
4829                 if (!have_switch) {
4830                         if (in) {
4831                                 yn = region->fade_in_active();
4832                         } else {
4833                                 yn = region->fade_out_active();
4834                         }
4835                         have_switch = true;
4836                 }
4837
4838                 XMLNode &before = region->get_state();
4839                 if (in) {
4840                         region->set_fade_in_active (!yn);
4841                 } else {
4842                         region->set_fade_out_active (!yn);
4843                 }
4844                 XMLNode &after = region->get_state();
4845                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4846         }
4847
4848         commit_reversible_command ();
4849 }
4850
4851 void
4852 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4853 {
4854         RegionSelection rs;
4855
4856         get_regions_for_action (rs);
4857
4858         if (rs.empty()) {
4859                 return;
4860         }
4861
4862         begin_reversible_command (_("set fade in shape"));
4863
4864         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4865                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4866
4867                 if (!tmp) {
4868                         return;
4869                 }
4870
4871                 AutomationList& alist = tmp->audio_region()->fade_in();
4872                 XMLNode &before = alist.get_state();
4873
4874                 tmp->audio_region()->set_fade_in_shape (shape);
4875
4876                 XMLNode &after = alist.get_state();
4877                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4878         }
4879
4880         commit_reversible_command ();
4881
4882 }
4883
4884 void
4885 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4886 {
4887         RegionSelection rs;
4888
4889         get_regions_for_action (rs);
4890
4891         if (rs.empty()) {
4892                 return;
4893         }
4894
4895         begin_reversible_command (_("set fade out shape"));
4896
4897         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4898                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4899
4900                 if (!tmp) {
4901                         return;
4902                 }
4903
4904                 AutomationList& alist = tmp->audio_region()->fade_out();
4905                 XMLNode &before = alist.get_state();
4906
4907                 tmp->audio_region()->set_fade_out_shape (shape);
4908
4909                 XMLNode &after = alist.get_state();
4910                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4911         }
4912
4913         commit_reversible_command ();
4914 }
4915
4916 void
4917 Editor::set_fade_in_active (bool yn)
4918 {
4919         RegionSelection rs;
4920
4921         get_regions_for_action (rs);
4922
4923         if (rs.empty()) {
4924                 return;
4925         }
4926
4927         begin_reversible_command (_("set fade in active"));
4928
4929         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4930                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4931
4932                 if (!tmp) {
4933                         return;
4934                 }
4935
4936
4937                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4938
4939                 XMLNode &before = ar->get_state();
4940
4941                 ar->set_fade_in_active (yn);
4942
4943                 XMLNode &after = ar->get_state();
4944                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4945         }
4946
4947         commit_reversible_command ();
4948 }
4949
4950 void
4951 Editor::set_fade_out_active (bool yn)
4952 {
4953         RegionSelection rs;
4954
4955         get_regions_for_action (rs);
4956
4957         if (rs.empty()) {
4958                 return;
4959         }
4960
4961         begin_reversible_command (_("set fade out active"));
4962
4963         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4964                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4965
4966                 if (!tmp) {
4967                         return;
4968                 }
4969
4970                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4971
4972                 XMLNode &before = ar->get_state();
4973
4974                 ar->set_fade_out_active (yn);
4975
4976                 XMLNode &after = ar->get_state();
4977                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4978         }
4979
4980         commit_reversible_command ();
4981 }
4982
4983 void
4984 Editor::toggle_selected_region_fades (int dir)
4985 {
4986         RegionSelection rs;
4987         RegionSelection::iterator i;
4988         boost::shared_ptr<AudioRegion> ar;
4989         bool yn;
4990
4991         get_regions_for_action (rs);
4992
4993         if (rs.empty()) {
4994                 return;
4995         }
4996
4997         for (i = rs.begin(); i != rs.end(); ++i) {
4998                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
4999                         if (dir == -1) {
5000                                 yn = ar->fade_out_active ();
5001                         } else {
5002                                 yn = ar->fade_in_active ();
5003                         }
5004                         break;
5005                 }
5006         }
5007
5008         if (i == rs.end()) {
5009                 return;
5010         }
5011
5012         /* XXX should this undo-able? */
5013
5014         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5015                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5016                         continue;
5017                 }
5018                 if (dir == 1 || dir == 0) {
5019                         ar->set_fade_in_active (!yn);
5020                 }
5021
5022                 if (dir == -1 || dir == 0) {
5023                         ar->set_fade_out_active (!yn);
5024                 }
5025         }
5026 }
5027
5028
5029 /** Update region fade visibility after its configuration has been changed */
5030 void
5031 Editor::update_region_fade_visibility ()
5032 {
5033         bool _fade_visibility = Config->get_show_region_fades ();
5034
5035         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5036                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5037                 if (v) {
5038                         if (_fade_visibility) {
5039                                 v->audio_view()->show_all_fades ();
5040                         } else {
5041                                 v->audio_view()->hide_all_fades ();
5042                         }
5043                 }
5044         }
5045 }
5046
5047 /** Update crossfade visibility after its configuration has been changed */
5048 void
5049 Editor::update_xfade_visibility ()
5050 {
5051         _xfade_visibility = Config->get_xfades_visible ();
5052
5053         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5054                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5055                 if (v) {
5056                         if (_xfade_visibility) {
5057                                 v->show_all_xfades ();
5058                         } else {
5059                                 v->hide_all_xfades ();
5060                         }
5061                 }
5062         }
5063 }
5064
5065 void
5066 Editor::set_edit_point ()
5067 {
5068         nframes64_t where;
5069         bool ignored;
5070
5071         if (!mouse_frame (where, ignored)) {
5072                 return;
5073         }
5074
5075         snap_to (where);
5076
5077         if (selection->markers.empty()) {
5078
5079                 mouse_add_new_marker (where);
5080
5081         } else {
5082                 bool ignored;
5083
5084                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5085
5086                 if (loc) {
5087                         loc->move_to (where);
5088                 }
5089         }
5090 }
5091
5092 void
5093 Editor::set_playhead_cursor ()
5094 {
5095         if (entered_marker) {
5096                 session->request_locate (entered_marker->position(), session->transport_rolling());
5097         } else {
5098                 nframes64_t where;
5099                 bool ignored;
5100
5101                 if (!mouse_frame (where, ignored)) {
5102                         return;
5103                 }
5104
5105                 snap_to (where);
5106
5107                 if (session) {
5108                         session->request_locate (where, session->transport_rolling());
5109                 }
5110         }
5111 }
5112
5113 void
5114 Editor::split ()
5115 {
5116         RegionSelection rs;
5117
5118         get_regions_for_action (rs);
5119
5120         nframes64_t where = get_preferred_edit_position();
5121
5122         if (rs.empty()) {
5123                 return;
5124         }
5125
5126         split_regions_at (where, rs);
5127 }
5128
5129 void
5130 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5131 {
5132         if (entered_track && mouse_mode == MouseObject) {
5133                 if (!selection->tracks.empty()) {
5134                         if (!selection->selected (entered_track)) {
5135                                 selection->add (entered_track);
5136                         }
5137                 } else {
5138                         /* there is no selection, but this operation requires/prefers selected objects */
5139
5140                         if (op_really_wants_one_track_if_none_are_selected) {
5141                                 selection->set (entered_track);
5142                         }
5143                 }
5144         }
5145 }
5146
5147 void
5148 Editor::trim_region_front ()
5149 {
5150         trim_region (true);
5151 }
5152
5153 void
5154 Editor::trim_region_back ()
5155 {
5156         trim_region (false);
5157 }
5158
5159 void
5160 Editor::trim_region (bool front)
5161 {
5162         nframes64_t where = get_preferred_edit_position();
5163         RegionSelection rs;
5164
5165         get_regions_for_action (rs);
5166
5167         if (rs.empty()) {
5168                 return;
5169         }
5170
5171         begin_reversible_command (front ? _("trim front") : _("trim back"));
5172
5173         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
5174                 if (!(*i)->region()->locked()) {
5175                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
5176                         XMLNode &before = pl->get_state();
5177                         if (front) {
5178                                 (*i)->region()->trim_front (where, this);
5179                         } else {
5180                                 (*i)->region()->trim_end (where, this);
5181                         }
5182                         XMLNode &after = pl->get_state();
5183                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
5184                 }
5185         }
5186
5187         commit_reversible_command ();
5188 }
5189
5190 struct EditorOrderRouteSorter {
5191     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5192             /* use of ">" forces the correct sort order */
5193             return a->order_key ("editor") < b->order_key ("editor");
5194     }
5195 };
5196
5197 void
5198 Editor::select_next_route()
5199 {
5200         if (selection->tracks.empty()) {
5201                 selection->set (track_views.front());
5202                 return;
5203         }
5204
5205         TimeAxisView* current = selection->tracks.front();
5206
5207         RouteUI *rui;
5208         do {
5209                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5210                         if (*i == current) {
5211                                 ++i;
5212                                 if (i != track_views.end()) {
5213                                         current = (*i);
5214                                 } else {
5215                                         current = (*(track_views.begin()));
5216                                         //selection->set (*(track_views.begin()));
5217                                 }
5218                                 break;
5219                         }
5220                 }
5221                 rui = dynamic_cast<RouteUI *>(current);
5222         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5223
5224         selection->set(current);
5225
5226         ensure_track_visible(current);
5227 }
5228
5229 void
5230 Editor::select_prev_route()
5231 {
5232         if (selection->tracks.empty()) {
5233                 selection->set (track_views.front());
5234                 return;
5235         }
5236
5237         TimeAxisView* current = selection->tracks.front();
5238
5239         RouteUI *rui;
5240         do {
5241                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5242                         if (*i == current) {
5243                                 ++i;
5244                                 if (i != track_views.rend()) {
5245                                         current = (*i);
5246                                 } else {
5247                                         current = *(track_views.rbegin());
5248                                 }
5249                                 break;
5250                         }
5251                 }
5252                 rui = dynamic_cast<RouteUI *>(current);
5253         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5254
5255         selection->set (current);
5256
5257         ensure_track_visible(current);
5258 }
5259
5260 void
5261 Editor::ensure_track_visible(TimeAxisView *track)
5262 {
5263         if (track->hidden())
5264                 return;
5265
5266         double current_view_min_y = vertical_adjustment.get_value();
5267         double current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5268
5269         double track_min_y = track->y_position;
5270         double track_max_y = track->y_position + (double)track->effective_height;
5271
5272         if (track_min_y >= current_view_min_y &&
5273             track_max_y <= current_view_max_y) {
5274                 return;
5275         }
5276
5277         double new_value;
5278
5279         if (track_min_y < current_view_min_y) {
5280                 // Track is above the current view
5281                 new_value = track_min_y;
5282         } else {
5283                 // Track is below the current view
5284                 new_value = track->y_position + (double)track->effective_height + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5285         }
5286
5287         vertical_adjustment.set_value(new_value);
5288 }
5289
5290 void
5291 Editor::set_loop_from_selection (bool play)
5292 {
5293         if (session == 0 || selection->time.empty()) {
5294                 return;
5295         }
5296
5297         nframes64_t start = selection->time[clicked_selection].start;
5298         nframes64_t end = selection->time[clicked_selection].end;
5299
5300         set_loop_range (start, end,  _("set loop range from selection"));
5301
5302         if (play) {
5303                 session->request_play_loop (true);
5304                 session->request_locate (start, true);
5305         }
5306 }
5307
5308 void
5309 Editor::set_loop_from_edit_range (bool play)
5310 {
5311         if (session == 0) {
5312                 return;
5313         }
5314
5315         nframes64_t start;
5316         nframes64_t end;
5317
5318         if (!get_edit_op_range (start, end)) {
5319                 return;
5320         }
5321
5322         set_loop_range (start, end,  _("set loop range from edit range"));
5323
5324         if (play) {
5325                 session->request_play_loop (true);
5326                 session->request_locate (start, true);
5327         }
5328 }
5329
5330 void
5331 Editor::set_loop_from_region (bool play)
5332 {
5333         nframes64_t start = max_frames;
5334         nframes64_t end = 0;
5335
5336         RegionSelection rs;
5337
5338         get_regions_for_action (rs);
5339
5340         if (rs.empty()) {
5341                 return;
5342         }
5343
5344         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5345                 if ((*i)->region()->position() < start) {
5346                         start = (*i)->region()->position();
5347                 }
5348                 if ((*i)->region()->last_frame() + 1 > end) {
5349                         end = (*i)->region()->last_frame() + 1;
5350                 }
5351         }
5352
5353         set_loop_range (start, end, _("set loop range from region"));
5354
5355         if (play) {
5356                 session->request_play_loop (true);
5357                 session->request_locate (start, true);
5358         }
5359 }
5360
5361 void
5362 Editor::set_punch_from_selection ()
5363 {
5364         if (session == 0 || selection->time.empty()) {
5365                 return;
5366         }
5367
5368         nframes64_t start = selection->time[clicked_selection].start;
5369         nframes64_t end = selection->time[clicked_selection].end;
5370
5371         set_punch_range (start, end,  _("set punch range from selection"));
5372 }
5373
5374 void
5375 Editor::set_punch_from_edit_range ()
5376 {
5377         if (session == 0) {
5378                 return;
5379         }
5380
5381         nframes64_t start;
5382         nframes64_t end;
5383
5384         if (!get_edit_op_range (start, end)) {
5385                 return;
5386         }
5387
5388         set_punch_range (start, end,  _("set punch range from edit range"));
5389 }
5390
5391 void
5392 Editor::set_punch_from_region ()
5393 {
5394         nframes64_t start = max_frames;
5395         nframes64_t end = 0;
5396
5397         RegionSelection rs;
5398
5399         get_regions_for_action (rs);
5400
5401         if (rs.empty()) {
5402                 return;
5403         }
5404
5405         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5406                 if ((*i)->region()->position() < start) {
5407                         start = (*i)->region()->position();
5408                 }
5409                 if ((*i)->region()->last_frame() + 1 > end) {
5410                         end = (*i)->region()->last_frame() + 1;
5411                 }
5412         }
5413
5414         set_punch_range (start, end, _("set punch range from region"));
5415 }
5416
5417 void
5418 Editor::pitch_shift_regions ()
5419 {
5420         RegionSelection rs;
5421
5422         get_regions_for_action (rs);
5423
5424         if (rs.empty()) {
5425                 return;
5426         }
5427
5428         pitch_shift (rs, 1.2);
5429 }
5430
5431 void
5432 Editor::use_region_as_bar ()
5433 {
5434         if (!session) {
5435                 return;
5436         }
5437
5438         RegionSelection rs;
5439
5440         get_regions_for_action (rs);
5441
5442         if (rs.empty()) {
5443                 return;
5444         }
5445
5446         RegionView* rv = rs.front();
5447
5448         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5449 }
5450
5451 void
5452 Editor::use_range_as_bar ()
5453 {
5454         nframes64_t start, end;
5455         if (get_edit_op_range (start, end)) {
5456                 define_one_bar (start, end);
5457         }
5458 }
5459
5460 void
5461 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5462 {
5463         nframes64_t length = end - start;
5464
5465         const Meter& m (session->tempo_map().meter_at (start));
5466
5467         /* length = 1 bar */
5468
5469         /* now we want frames per beat.
5470            we have frames per bar, and beats per bar, so ...
5471         */
5472
5473         double frames_per_beat = length / m.beats_per_bar();
5474
5475         /* beats per minute = */
5476
5477         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5478
5479         /* now decide whether to:
5480
5481             (a) set global tempo
5482             (b) add a new tempo marker
5483
5484         */
5485
5486         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5487
5488         bool do_global = false;
5489
5490         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5491
5492                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5493                    at the start, or create a new marker
5494                 */
5495
5496                 vector<string> options;
5497                 options.push_back (_("Cancel"));
5498                 options.push_back (_("Add new marker"));
5499                 options.push_back (_("Set global tempo"));
5500                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5501                           options);
5502                 c.set_default_response (2);
5503
5504                 switch (c.run()) {
5505                 case 0:
5506                         return;
5507
5508                 case 2:
5509                         do_global = true;
5510                         break;
5511
5512                 default:
5513                         do_global = false;
5514                 }
5515
5516         } else {
5517
5518                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5519                    if the marker is at the region starter, change it, otherwise add
5520                    a new tempo marker
5521                 */
5522         }
5523
5524         begin_reversible_command (_("set tempo from region"));
5525         XMLNode& before (session->tempo_map().get_state());
5526
5527         if (do_global) {
5528                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5529         } else if (t.frame() == start) {
5530                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5531         } else {
5532                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5533         }
5534
5535         XMLNode& after (session->tempo_map().get_state());
5536
5537         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5538         commit_reversible_command ();
5539 }
5540
5541 void
5542 Editor::split_region_at_transients ()
5543 {
5544         AnalysisFeatureList positions;
5545
5546         if (!session) {
5547                 return;
5548         }
5549
5550         RegionSelection rs;
5551
5552         get_regions_for_action (rs);
5553
5554         if (rs.empty()) {
5555                 return;
5556         }
5557
5558         session->begin_reversible_command (_("split regions"));
5559
5560         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5561
5562                 RegionSelection::iterator tmp;
5563
5564                 tmp = i;
5565                 ++tmp;
5566
5567                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5568
5569                 if (ar && (ar->get_transients (positions) == 0)) {
5570                         split_region_at_points ((*i)->region(), positions, true);
5571                         positions.clear ();
5572                 }
5573
5574                 i = tmp;
5575         }
5576
5577         session->commit_reversible_command ();
5578
5579 }
5580
5581 void
5582 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5583 {
5584         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
5585         bool use_rhythmic_rodent = false;
5586
5587         if (!ar) {
5588                 return;
5589         }
5590
5591         boost::shared_ptr<Playlist> pl = ar->playlist();
5592
5593         if (!pl) {
5594                 return;
5595         }
5596
5597         if (positions.empty()) {
5598                 return;
5599         }
5600
5601
5602         if (positions.size() > 20) {
5603                 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);
5604                 MessageDialog msg (msgstr,
5605                                    false,
5606                                    Gtk::MESSAGE_INFO,
5607                                    Gtk::BUTTONS_OK_CANCEL);
5608
5609                 if (can_ferret) {
5610                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5611                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5612                 } else {
5613                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5614                 }
5615
5616                 msg.set_title (_("Excessive split?"));
5617                 msg.present ();
5618
5619                 int response = msg.run();
5620                 msg.hide ();
5621                 switch (response) {
5622                 case RESPONSE_OK:
5623                         break;
5624                 case RESPONSE_APPLY:
5625                         use_rhythmic_rodent = true;
5626                         break;
5627                 default:
5628                         return;
5629                 }
5630         }
5631
5632         if (use_rhythmic_rodent) {
5633                 show_rhythm_ferret ();
5634                 return;
5635         }
5636
5637         AnalysisFeatureList::const_iterator x;
5638
5639         nframes64_t pos = ar->position();
5640
5641         XMLNode& before (pl->get_state());
5642
5643         x = positions.begin();
5644
5645         while (x != positions.end()) {
5646                 if ((*x) > pos) {
5647                         break;
5648                 }
5649                 ++x;
5650         }
5651
5652         if (x == positions.end()) {
5653                 return;
5654         }
5655
5656         pl->freeze ();
5657         pl->remove_region (ar);
5658
5659         while (x != positions.end()) {
5660
5661                 /* file start = original start + how far we from the initial position ?
5662                  */
5663
5664                 nframes64_t file_start = ar->start() + (pos - ar->position());
5665
5666                 /* length = next position - current position
5667                  */
5668
5669                 nframes64_t len = (*x) - pos;
5670
5671                 /* XXX we do we really want to allow even single-sample regions?
5672                    shouldn't we have some kind of lower limit on region size?
5673                 */
5674
5675                 if (len <= 0) {
5676                         break;
5677                 }
5678
5679                 string new_name;
5680
5681                 if (session->region_name (new_name, ar->name())) {
5682                         break;
5683                 }
5684
5685                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5686
5687                 boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5688                 pl->add_region (r, pos);
5689
5690                 pos += len;
5691                 ++x;
5692
5693                 if (*x > ar->last_frame()) {
5694
5695                         /* add final fragment */
5696
5697                         file_start = ar->start() + (pos - ar->position());
5698                         len = ar->last_frame() - pos;
5699
5700                         boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5701                         pl->add_region (r, pos);
5702
5703                         break;
5704                 }
5705         }
5706
5707         pl->thaw ();
5708
5709         XMLNode& after (pl->get_state());
5710
5711         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
5712 }
5713
5714 void
5715 Editor::tab_to_transient (bool forward)
5716 {
5717         AnalysisFeatureList positions;
5718
5719         if (!session) {
5720                 return;
5721         }
5722
5723         nframes64_t pos = session->audible_frame ();
5724
5725         if (!selection->tracks.empty()) {
5726
5727                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5728
5729                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5730
5731                         if (rtv) {
5732                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
5733                                 if (ds) {
5734                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
5735                                         if (pl) {
5736                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5737
5738                                                 if (result >= 0) {
5739                                                         positions.push_back (result);
5740                                                 }
5741                                         }
5742                                 }
5743                         }
5744                 }
5745
5746         } else {
5747
5748                 RegionSelection rs;
5749
5750                 get_regions_for_action (rs);
5751
5752                 if (rs.empty()) {
5753                         return;
5754                 }
5755
5756                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5757                         (*r)->region()->get_transients (positions);
5758                 }
5759         }
5760
5761         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
5762
5763         if (forward) {
5764                 AnalysisFeatureList::iterator x;
5765
5766                 for (x = positions.begin(); x != positions.end(); ++x) {
5767                         if ((*x) > pos) {
5768                                 break;
5769                         }
5770                 }
5771
5772                 if (x != positions.end ()) {
5773                         session->request_locate (*x);
5774                 }
5775
5776         } else {
5777                 AnalysisFeatureList::reverse_iterator x;
5778
5779                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
5780                         if ((*x) < pos) {
5781                                 break;
5782                         }
5783                 }
5784
5785                 if (x != positions.rend ()) {
5786                         session->request_locate (*x);
5787                 }
5788         }
5789 }
5790
5791 void
5792 Editor::playhead_forward_to_grid ()
5793 {
5794         if (!session) return;
5795         nframes64_t pos = playhead_cursor->current_frame;
5796         if (pos < max_frames - 1) {
5797                 pos += 2;
5798                 snap_to_internal (pos, 1, false);
5799                 session->request_locate (pos);
5800         }
5801 }
5802
5803
5804 void
5805 Editor::playhead_backward_to_grid ()
5806 {
5807         if (!session) return;
5808         nframes64_t pos = playhead_cursor->current_frame;
5809         if (pos > 2) {
5810                 pos -= 2;
5811                 snap_to_internal (pos, -1, false);
5812                 session->request_locate (pos);
5813         }
5814 }
5815
5816 void
5817 Editor::set_track_height (uint32_t h)
5818 {
5819         TrackSelection& ts (selection->tracks);
5820
5821         if (ts.empty()) {
5822                 return;
5823         }
5824
5825         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5826                 (*x)->set_height (h);
5827         }
5828 }
5829
5830 void
5831 Editor::set_track_height_largest ()
5832 {
5833         set_track_height (TimeAxisView::hLargest);
5834 }
5835 void
5836 Editor::set_track_height_large ()
5837 {
5838         set_track_height (TimeAxisView::hLarge);
5839 }
5840 void
5841 Editor::set_track_height_larger ()
5842 {
5843         set_track_height (TimeAxisView::hLarger);
5844 }
5845 void
5846 Editor::set_track_height_normal ()
5847 {
5848         set_track_height (TimeAxisView::hNormal);
5849 }
5850 void
5851 Editor::set_track_height_smaller ()
5852 {
5853         set_track_height (TimeAxisView::hSmaller);
5854 }
5855 void
5856 Editor::set_track_height_small ()
5857 {
5858         set_track_height (TimeAxisView::hSmall);
5859 }
5860
5861 void
5862 Editor::toggle_tracks_active ()
5863 {
5864         TrackSelection& ts (selection->tracks);
5865         bool first = true;
5866         bool target = false;
5867
5868         if (ts.empty()) {
5869                 return;
5870         }
5871
5872         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5873                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
5874
5875                 if (rtv) {
5876                         if (first) {
5877                                 target = !rtv->_route->active();
5878                                 first = false;
5879                         }
5880                         rtv->_route->set_active (target);
5881                 }
5882         }
5883 }
5884
5885 void
5886 Editor::remove_tracks ()
5887 {
5888         TrackSelection& ts (selection->tracks);
5889
5890         if (ts.empty()) {
5891                 return;
5892         }
5893
5894         vector<string> choices;
5895         string prompt;
5896         int ntracks = 0;
5897         int nbusses = 0;
5898         const char* trackstr;
5899         const char* busstr;
5900         vector<boost::shared_ptr<Route> > routes;
5901
5902         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5903                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
5904                 if (rtv) {
5905                         if (rtv->is_track()) {
5906                                 ntracks++;
5907                         } else {
5908                                 nbusses++;
5909                         }
5910                 }
5911                 routes.push_back (rtv->_route);
5912         }
5913
5914         if (ntracks + nbusses == 0) {
5915                 return;
5916         }
5917
5918         if (ntracks > 1) {
5919                 trackstr = _("tracks");
5920         } else {
5921                 trackstr = _("track");
5922         }
5923
5924         if (nbusses > 1) {
5925                 busstr = _("busses");
5926         } else {
5927                 busstr = _("bus");
5928         }
5929
5930         if (ntracks) {
5931                 if (nbusses) {
5932                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
5933                                                     "(You may also lose the playlists associated with the %2)\n\n"
5934                                                     "This action cannot be undone!"),
5935                                                   ntracks, trackstr, nbusses, busstr);
5936                 } else {
5937                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
5938                                                     "(You may also lose the playlists associated with the %2)\n\n"
5939                                                     "This action cannot be undone!"),
5940                                                   ntracks, trackstr);
5941                 }
5942         } else if (nbusses) {
5943                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
5944                                           nbusses, busstr);
5945         }
5946
5947         choices.push_back (_("No, do nothing."));
5948         if (ntracks + nbusses > 1) {
5949                 choices.push_back (_("Yes, remove them."));
5950         } else {
5951                 choices.push_back (_("Yes, remove it."));
5952         }
5953
5954         Choice prompter (prompt, choices);
5955
5956         if (prompter.run () != 1) {
5957                 return;
5958         }
5959
5960         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
5961                 session->remove_route (*x);
5962         }
5963 }
5964
5965 void
5966 Editor::set_waveform_scale (WaveformScale ws)
5967 {
5968         TrackSelection& ts (selection->tracks);
5969
5970         if (ts.empty()) {
5971                 return;
5972         }
5973
5974         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5975                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (*x);
5976                 if (atv) {
5977                         atv->set_waveform_scale (ws);
5978                 }
5979         }
5980 }
5981
5982 void
5983 Editor::do_insert_time ()
5984 {
5985         if (selection->tracks.empty()) {
5986                 return;
5987         }
5988
5989         nframes64_t pos = get_preferred_edit_position ();
5990         ArdourDialog d (*this, _("Insert Time"));
5991         VButtonBox button_box;
5992         VBox option_box;
5993         RadioButtonGroup group;
5994         RadioButton leave_button (group, _("Stay in position"));
5995         RadioButton move_button (group, _("Move"));
5996         RadioButton split_button (group, _("Split & Later Section Moves"));
5997         Label intersect_option_label (_("Intersected regions should:"));
5998         CheckButton glue_button (_("Move Glued Regions"));
5999         CheckButton marker_button (_("Move Markers"));
6000         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
6001         HBox clock_box;
6002
6003         clock.set (0);
6004         clock.set_session (session);
6005         clock.set_bbt_reference (pos);
6006
6007         clock_box.pack_start (clock, false, true);
6008
6009         option_box.set_spacing (6);
6010         option_box.pack_start (intersect_option_label, false, false);
6011         option_box.pack_start (button_box, false, false);
6012         option_box.pack_start (glue_button, false, false);
6013         option_box.pack_start (marker_button, false, false);
6014
6015         button_box.pack_start (leave_button, false, false);
6016         button_box.pack_start (move_button, false, false);
6017         button_box.pack_start (split_button, false, false);
6018
6019         d.get_vbox()->set_border_width (12);
6020         d.get_vbox()->pack_start (clock_box, false, false);
6021         d.get_vbox()->pack_start (option_box, false, false);
6022
6023         leave_button.show ();
6024         move_button.show ();
6025         split_button.show ();
6026         intersect_option_label.show ();
6027         option_box.show ();
6028         button_box.show ();
6029         glue_button.show ();
6030         clock.show_all();
6031         clock_box.show ();
6032         marker_button.show ();
6033
6034         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6035         d.add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
6036         d.show ();
6037
6038         int response = d.run ();
6039
6040         if (response != RESPONSE_OK) {
6041                 return;
6042         }
6043
6044         nframes64_t distance = clock.current_duration (pos);
6045
6046         if (distance == 0) {
6047                 return;
6048         }
6049
6050         InsertTimeOption opt;
6051
6052         if (leave_button.get_active()) {
6053                 opt = LeaveIntersected;
6054         } else if (move_button.get_active()) {
6055                 opt = MoveIntersected;
6056         } else {
6057                 opt = SplitIntersected;
6058         }
6059
6060         insert_time (pos, distance, opt, glue_button.get_active(), marker_button.get_active());
6061 }
6062
6063 void
6064 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6065                      bool ignore_music_glue, bool markers_too)
6066 {
6067         bool commit = false;
6068
6069         if (Config->get_edit_mode() == Lock) {
6070                 return;
6071         }
6072
6073         begin_reversible_command (_("insert time"));
6074
6075         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6076                 /* regions */
6077                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6078
6079                 if (pl) {
6080
6081                         XMLNode &before = pl->get_state();
6082
6083                         if (opt == SplitIntersected) {
6084                                 pl->split (pos);
6085                         }
6086
6087                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6088
6089                         XMLNode &after = pl->get_state();
6090
6091                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6092                         commit = true;
6093                 }
6094
6095                 /* automation */
6096                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6097                 if (rtav) {
6098                         rtav->route ()->shift (pos, frames);
6099                         commit = true;
6100                 }
6101         }
6102
6103         /* markers */
6104         if (markers_too) {
6105                 bool moved = false;
6106                 XMLNode& before (session->locations()->get_state());
6107                 Locations::LocationList copy (session->locations()->list());
6108
6109                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6110
6111                         Locations::LocationList::const_iterator tmp;
6112
6113                         if ((*i)->start() >= pos) {
6114                                 (*i)->set_start ((*i)->start() + frames);
6115                                 if (!(*i)->is_mark()) {
6116                                         (*i)->set_end ((*i)->end() + frames);
6117                                 }
6118                                 moved = true;
6119                         }
6120                 }
6121
6122                 if (moved) {
6123                         XMLNode& after (session->locations()->get_state());
6124                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6125                 }
6126         }
6127
6128         if (commit) {
6129                 commit_reversible_command ();
6130         }
6131 }
6132
6133 void
6134 Editor::fit_tracks ()
6135 {
6136         if (selection->tracks.empty()) {
6137                 return;
6138         }
6139
6140         uint32_t child_heights = 0;
6141
6142         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6143
6144                 if (!(*t)->marked_for_display()) {
6145                         continue;
6146                 }
6147
6148                 child_heights += ((*t)->effective_height - (*t)->current_height());
6149         }
6150
6151         uint32_t h = (uint32_t) floor ((canvas_height - child_heights - canvas_timebars_vsize)/selection->tracks.size());
6152         double first_y_pos = DBL_MAX;
6153
6154         if (h < TimeAxisView::hSmall) {
6155                 MessageDialog msg (*this, _("There are too many selected tracks to fit in the current window"));
6156                 /* too small to be displayed */
6157                 return;
6158         }
6159
6160         undo_visual_stack.push_back (current_visual_state());
6161
6162         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6163
6164         bool prev_was_selected = false;
6165         bool is_selected = selection->selected (track_views.front());
6166         bool next_is_selected;
6167
6168         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6169
6170                 TrackViewList::iterator next;
6171
6172                 next = t;
6173                 ++next;
6174
6175                 if (next != track_views.end()) {
6176                         next_is_selected = selection->selected (*next);
6177                 } else {
6178                         next_is_selected = false;
6179                 }
6180
6181                 if (is_selected) {
6182                         (*t)->set_height (h);
6183                         first_y_pos = std::min ((*t)->y_position, first_y_pos);
6184                 } else {
6185                         if (prev_was_selected && next_is_selected) {
6186                                 hide_track_in_display (**t);
6187                         }
6188                 }
6189
6190                 prev_was_selected = is_selected;
6191                 is_selected = next_is_selected;
6192         }
6193
6194         /*
6195            set the controls_layout height now, because waiting for its size
6196            request signal handler will cause the vertical adjustment setting to fail
6197         */
6198
6199         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6200         vertical_adjustment.set_value (first_y_pos);
6201
6202         redo_visual_stack.push_back (current_visual_state());
6203 }
6204
6205 void
6206 Editor::save_visual_state (uint32_t n)
6207 {
6208         while (visual_states.size() <= n) {
6209                 visual_states.push_back (0);
6210         }
6211
6212         if (visual_states[n] != 0) {
6213                 delete visual_states[n];
6214         }
6215
6216         visual_states[n] = current_visual_state (true);
6217         gdk_beep ();
6218 }
6219
6220 void
6221 Editor::goto_visual_state (uint32_t n)
6222 {
6223         if (visual_states.size() <= n) {
6224                 return;
6225         }
6226
6227         if (visual_states[n] == 0) {
6228                 return;
6229         }
6230
6231         use_visual_state (*visual_states[n]);
6232 }
6233
6234 void
6235 Editor::start_visual_state_op (uint32_t n)
6236 {
6237         cerr << "Start visual op\n";
6238         if (visual_state_op_connection.empty()) {
6239                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6240                 cerr << "\tqueued new timeout\n";
6241         }
6242 }
6243
6244 void
6245 Editor::cancel_visual_state_op (uint32_t n)
6246 {
6247         if (!visual_state_op_connection.empty()) {
6248                 cerr << "cancel visual op, time to goto\n";
6249                 visual_state_op_connection.disconnect();
6250                 goto_visual_state (n);
6251         } else {
6252                 cerr << "cancel visual op, do nothing\n";
6253         }
6254 }
6255
6256 bool
6257 Editor::end_visual_state_op (uint32_t n)
6258 {
6259         visual_state_op_connection.disconnect();
6260         save_visual_state (n);
6261
6262         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6263         char buf[32];
6264         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6265         pup->set_text (buf);
6266         pup->touch();
6267
6268         return false; // do not call again
6269 }
6270