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->sync_position ();
 692                                 //r->adjust_to_sync (r->first_frame());
 693                                 break;
 694
 695                         default:
 696                                 break;
 697                         }
 698
 699                         float speed = 1.0f;
 700                         AudioTimeAxisView *atav;
 701
 702                         if (ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 703                                 if (atav->get_diskstream() != 0) {
 704                                         speed = atav->get_diskstream()->speed();
 705                                 }
 706                         }
 707
 708                         rpos = track_frame_to_session_frame (rpos, speed);
 709
 710                         if (rpos < lpos) {
 711                                 lpos = rpos;
 712                         }
 713
 714                         /* prevent duplicates, but we don't use set<> because we want to be able
 715                            to sort later.
 716                         */
 717
 718                         vector<nframes64_t>::iterator ri;
 719
 720                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 721                                 if (*ri == rpos) {
 722                                         break;
 723                                 }
 724                         }
 725
 726                         if (ri == region_boundary_cache.end()) {
 727                                 region_boundary_cache.push_back (rpos);
 728                         }
 729                 }
 730
 731                 pos = lpos + 1;
 732         }
 733
 734         /* finally sort to be sure that the order is correct */
 735
 736         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 737 }
 738
 739 boost::shared_ptr<Region>
 740 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 741 {
 742         TrackViewList::iterator i;
 743         nframes64_t closest = max_frames;
 744         boost::shared_ptr<Region> ret;
 745         nframes64_t rpos = 0;
 746
 747         float track_speed;
 748         nframes64_t track_frame;
 749         AudioTimeAxisView *atav;
 750
 751         for (i = tracks.begin(); i != tracks.end(); ++i) {
 752
 753                 nframes64_t distance;
 754                 boost::shared_ptr<Region> r;
 755
 756                 track_speed = 1.0f;
 757                 if ( (atav = dynamic_cast<AudioTimeAxisView*>(*i)) != 0 ) {
 758                         if (atav->get_diskstream()!=0)
 759                                 track_speed = atav->get_diskstream()->speed();
 760                 }
 761
 762                 track_frame = session_frame_to_track_frame(frame, track_speed);
 763
 764                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 765                         continue;
 766                 }
 767
 768                 switch (point) {
 769                 case Start:
 770                         rpos = r->first_frame ();
 771                         break;
 772
 773                 case End:
 774                         rpos = r->last_frame ();
 775                         break;
 776
 777                 case SyncPoint:
 778                         rpos = r->sync_position ();
 779                         // r->adjust_to_sync (r->first_frame());
 780                         break;
 781                 }
 782
 783                 // rpos is a "track frame", converting it to "session frame"
 784                 rpos = track_frame_to_session_frame(rpos, track_speed);
 785
 786                 if (rpos > frame) {
 787                         distance = rpos - frame;
 788                 } else {
 789                         distance = frame - rpos;
 790                 }
 791
 792                 if (distance < closest) {
 793                         closest = distance;
 794                         if (ontrack != 0)
 795                                 *ontrack = (*i);
 796                         ret = r;
 797                 }
 798         }
 799
 800         return ret;
 801 }
 802
 803 nframes64_t
 804 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 805 {
 806         nframes64_t distance = max_frames;
 807         nframes64_t current_nearest = -1;
 808
 809
 810         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 811                 nframes64_t contender;
 812                 nframes64_t d;
 813
 814                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 815
 816                 if (!rtv) {
 817                         continue;
 818                 }
 819
 820                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 821                         continue;
 822                 }
 823
 824                 d = ::llabs (pos - contender);
 825
 826                 if (d < distance) {
 827                         current_nearest = contender;
 828                         distance = d;
 829                 }
 830         }
 831
 832         return current_nearest;
 833 }
 834
 835 nframes64_t
 836 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 837 {
 838         nframes64_t target;
 839         TrackViewList tvl;
 840
 841         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 842
 843                 if (!selection->tracks.empty()) {
 844
 845                         target = find_next_region_boundary (pos, dir, selection->tracks);
 846
 847                 } else {
 848
 849                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 850                                 get_onscreen_tracks (tvl);
 851                                 target = find_next_region_boundary (pos, dir, tvl);
 852                         } else {
 853                                 target = find_next_region_boundary (pos, dir, track_views);
 854                         }
 855                 }
 856
 857         } else {
 858
 859                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 860                         get_onscreen_tracks (tvl);
 861                         target = find_next_region_boundary (pos, dir, tvl);
 862                 } else {
 863                         target = find_next_region_boundary (pos, dir, track_views);
 864                 }
 865         }
 866
 867         return target;
 868 }
 869
 870 void
 871 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 872 {
 873         nframes64_t pos = playhead_cursor->current_frame;
 874         nframes64_t target;
 875
 876         if (!session) {
 877                 return;
 878         }
 879
 880         // so we don't find the current region again..
 881         if (dir > 0 || pos > 0) {
 882                 pos += dir;
 883         }
 884
 885         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 886                 return;
 887         }
 888
 889
 890         session->request_locate (target);
 891 }
 892
 893 void
 894 Editor::cursor_to_next_region_boundary (bool with_selection)
 895 {
 896         cursor_to_region_boundary (with_selection, 1);
 897 }
 898
 899 void
 900 Editor::cursor_to_previous_region_boundary (bool with_selection)
 901 {
 902         cursor_to_region_boundary (with_selection, -1);
 903 }
 904
 905 void
 906 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 907 {
 908         boost::shared_ptr<Region> r;
 909         nframes64_t pos = cursor->current_frame;
 910
 911         if (!session) {
 912                 return;
 913         }
 914
 915         TimeAxisView *ontrack = 0;
 916
 917         // so we don't find the current region again..
 918         if (dir>0 || pos>0)
 919                 pos+=dir;
 920
 921         if (!selection->tracks.empty()) {
 922
 923                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 924
 925         } else if (clicked_trackview) {
 926
 927                 TrackViewList t;
 928                 t.push_back (clicked_trackview);
 929
 930                 r = find_next_region (pos, point, dir, t, &ontrack);
 931
 932         } else {
 933
 934                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 935         }
 936
 937         if (r == 0) {
 938                 return;
 939         }
 940
 941         switch (point){
 942         case Start:
 943                 pos = r->first_frame ();
 944                 break;
 945
 946         case End:
 947                 pos = r->last_frame ();
 948                 break;
 949
 950         case SyncPoint:
 951                 pos = r->sync_position ();
 952                 // r->adjust_to_sync (r->first_frame());
 953                 break;
 954         }
 955
 956         float speed = 1.0f;
 957         AudioTimeAxisView *atav;
 958
 959         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 960                 if (atav->get_diskstream() != 0) {
 961                         speed = atav->get_diskstream()->speed();
 962                 }
 963         }
 964
 965         pos = track_frame_to_session_frame(pos, speed);
 966
 967         if (cursor == playhead_cursor) {
 968                 session->request_locate (pos);
 969         } else {
 970                 cursor->set_position (pos);
 971         }
 972 }
 973
 974 void
 975 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 976 {
 977         cursor_to_region_point (cursor, point, 1);
 978 }
 979
 980 void
 981 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 982 {
 983         cursor_to_region_point (cursor, point, -1);
 984 }
 985
 986 void
 987 Editor::cursor_to_selection_start (Cursor *cursor)
 988 {
 989         nframes64_t pos = 0;
 990         RegionSelection rs;
 991
 992         get_regions_for_action (rs);
 993
 994         switch (mouse_mode) {
 995         case MouseObject:
 996                 if (!rs.empty()) {
 997                         pos = rs.start();
 998                 }
 999                 break;
1000
1001         case MouseRange:
1002                 if (!selection->time.empty()) {
1003                         pos = selection->time.start ();
1004                 }
1005                 break;
1006
1007         default:
1008                 return;
1009         }
1010
1011         if (cursor == playhead_cursor) {
1012                 session->request_locate (pos);
1013         } else {
1014                 cursor->set_position (pos);
1015         }
1016 }
1017
1018 void
1019 Editor::cursor_to_selection_end (Cursor *cursor)
1020 {
1021         nframes64_t pos = 0;
1022         RegionSelection rs;
1023
1024         get_regions_for_action (rs);
1025
1026         switch (mouse_mode) {
1027         case MouseObject:
1028                 if (!rs.empty()) {
1029                         pos = rs.end_frame();
1030                 }
1031                 break;
1032
1033         case MouseRange:
1034                 if (!selection->time.empty()) {
1035                         pos = selection->time.end_frame ();
1036                 }
1037                 break;
1038
1039         default:
1040                 return;
1041         }
1042
1043         if (cursor == playhead_cursor) {
1044                 session->request_locate (pos);
1045         } else {
1046                 cursor->set_position (pos);
1047         }
1048 }
1049
1050 void
1051 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
1052 {
1053         nframes64_t target;
1054         Location* loc;
1055         bool ignored;
1056
1057         if (!session) {
1058                 return;
1059         }
1060
1061         if (selection->markers.empty()) {
1062                 nframes64_t mouse;
1063                 bool ignored;
1064
1065                 if (!mouse_frame (mouse, ignored)) {
1066                         return;
1067                 }
1068
1069                 add_location_mark (mouse);
1070         }
1071
1072         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1073                 return;
1074         }
1075
1076         nframes64_t pos = loc->start();
1077
1078         // so we don't find the current region again..
1079         if (dir > 0 || pos > 0) {
1080                 pos += dir;
1081         }
1082
1083         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1084                 return;
1085         }
1086
1087         loc->move_to (target);
1088 }
1089
1090 void
1091 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1092 {
1093         selected_marker_to_region_boundary (with_selection, 1);
1094 }
1095
1096 void
1097 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1098 {
1099         selected_marker_to_region_boundary (with_selection, -1);
1100 }
1101
1102 void
1103 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1104 {
1105         boost::shared_ptr<Region> r;
1106         nframes64_t pos;
1107         Location* loc;
1108         bool ignored;
1109
1110         if (!session || selection->markers.empty()) {
1111                 return;
1112         }
1113
1114         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1115                 return;
1116         }
1117
1118         TimeAxisView *ontrack = 0;
1119
1120         pos = loc->start();
1121
1122         // so we don't find the current region again..
1123         if (dir>0 || pos>0)
1124                 pos+=dir;
1125
1126         if (!selection->tracks.empty()) {
1127
1128                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1129
1130         } else if (clicked_trackview) {
1131
1132                 TrackViewList t;
1133                 t.push_back (clicked_trackview);
1134
1135                 r = find_next_region (pos, point, dir, t, &ontrack);
1136
1137         } else {
1138
1139                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1140         }
1141
1142         if (r == 0) {
1143                 return;
1144         }
1145
1146         switch (point){
1147         case Start:
1148                 pos = r->first_frame ();
1149                 break;
1150
1151         case End:
1152                 pos = r->last_frame ();
1153                 break;
1154
1155         case SyncPoint:
1156                 pos = r->adjust_to_sync (r->first_frame());
1157                 break;
1158         }
1159
1160         float speed = 1.0f;
1161         AudioTimeAxisView *atav;
1162
1163         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1164                 if (atav->get_diskstream() != 0) {
1165                         speed = atav->get_diskstream()->speed();
1166                 }
1167         }
1168
1169         pos = track_frame_to_session_frame(pos, speed);
1170
1171         loc->move_to (pos);
1172 }
1173
1174 void
1175 Editor::selected_marker_to_next_region_point (RegionPoint point)
1176 {
1177         selected_marker_to_region_point (point, 1);
1178 }
1179
1180 void
1181 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1182 {
1183         selected_marker_to_region_point (point, -1);
1184 }
1185
1186 void
1187 Editor::selected_marker_to_selection_start ()
1188 {
1189         nframes64_t pos = 0;
1190         Location* loc;
1191         bool ignored;
1192
1193         if (!session || selection->markers.empty()) {
1194                 return;
1195         }
1196
1197         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1198                 return;
1199         }
1200
1201         RegionSelection rs;
1202
1203         get_regions_for_action (rs);
1204
1205         switch (mouse_mode) {
1206         case MouseObject:
1207                 if (!rs.empty()) {
1208                         pos = rs.start();
1209                 }
1210                 break;
1211
1212         case MouseRange:
1213                 if (!selection->time.empty()) {
1214                         pos = selection->time.start ();
1215                 }
1216                 break;
1217
1218         default:
1219                 return;
1220         }
1221
1222         loc->move_to (pos);
1223 }
1224
1225 void
1226 Editor::selected_marker_to_selection_end ()
1227 {
1228         nframes64_t pos = 0;
1229         Location* loc;
1230         bool ignored;
1231
1232         if (!session || selection->markers.empty()) {
1233                 return;
1234         }
1235
1236         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1237                 return;
1238         }
1239
1240         RegionSelection rs;
1241
1242         get_regions_for_action (rs);
1243
1244         switch (mouse_mode) {
1245         case MouseObject:
1246                 if (!rs.empty()) {
1247                         pos = rs.end_frame();
1248                 }
1249                 break;
1250
1251         case MouseRange:
1252                 if (!selection->time.empty()) {
1253                         pos = selection->time.end_frame ();
1254                 }
1255                 break;
1256
1257         default:
1258                 return;
1259         }
1260
1261         loc->move_to (pos);
1262 }
1263
1264 void
1265 Editor::scroll_playhead (bool forward)
1266 {
1267         nframes64_t pos = playhead_cursor->current_frame;
1268         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1269
1270         if (forward) {
1271                 if (pos == max_frames) {
1272                         return;
1273                 }
1274
1275                 if (pos < max_frames - delta) {
1276                         pos += delta ;
1277                 } else {
1278                         pos = max_frames;
1279                 }
1280
1281         } else {
1282
1283                 if (pos == 0) {
1284                         return;
1285                 }
1286
1287                 if (pos > delta) {
1288                         pos -= delta;
1289                 } else {
1290                         pos = 0;
1291                 }
1292         }
1293
1294         session->request_locate (pos);
1295 }
1296
1297 void
1298 Editor::playhead_backward ()
1299 {
1300         nframes64_t pos;
1301         nframes64_t cnt;
1302         float prefix;
1303         bool was_floating;
1304
1305         if (get_prefix (prefix, was_floating)) {
1306                 cnt = 1;
1307         } else {
1308                 if (was_floating) {
1309                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1310                 } else {
1311                         cnt = (nframes64_t) prefix;
1312                 }
1313         }
1314
1315         pos = playhead_cursor->current_frame;
1316
1317         if ((nframes64_t) pos < cnt) {
1318                 pos = 0;
1319         } else {
1320                 pos -= cnt;
1321         }
1322
1323         /* XXX this is completely insane. with the current buffering
1324            design, we'll force a complete track buffer flush and
1325            reload, just to move 1 sample !!!
1326         */
1327
1328         session->request_locate (pos);
1329 }
1330
1331 void
1332 Editor::playhead_forward ()
1333 {
1334         nframes64_t pos;
1335         nframes64_t cnt;
1336         bool was_floating;
1337         float prefix;
1338
1339         if (get_prefix (prefix, was_floating)) {
1340                 cnt = 1;
1341         } else {
1342                 if (was_floating) {
1343                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1344                 } else {
1345                         cnt = (nframes64_t) floor (prefix);
1346                 }
1347         }
1348
1349         pos = playhead_cursor->current_frame;
1350
1351         /* XXX this is completely insane. with the current buffering
1352            design, we'll force a complete track buffer flush and
1353            reload, just to move 1 sample !!!
1354         */
1355
1356         session->request_locate (pos+cnt);
1357 }
1358
1359 void
1360 Editor::cursor_align (bool playhead_to_edit)
1361 {
1362         if (!session) {
1363                 return;
1364         }
1365
1366         if (playhead_to_edit) {
1367
1368                 if (selection->markers.empty()) {
1369                         return;
1370                 }
1371
1372                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1373
1374         } else {
1375
1376                 /* move selected markers to playhead */
1377
1378                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1379                         bool ignored;
1380
1381                         Location* loc = find_location_from_marker (*i, ignored);
1382
1383                         if (loc->is_mark()) {
1384                                 loc->set_start (playhead_cursor->current_frame);
1385                         } else {
1386                                 loc->set (playhead_cursor->current_frame,
1387                                           playhead_cursor->current_frame + loc->length());
1388                         }
1389                 }
1390         }
1391 }
1392
1393 void
1394 Editor::edit_cursor_backward ()
1395 {
1396         nframes64_t pos;
1397         nframes64_t cnt;
1398         float prefix;
1399         bool was_floating;
1400
1401         if (get_prefix (prefix, was_floating)) {
1402                 cnt = 1;
1403         } else {
1404                 if (was_floating) {
1405                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1406                 } else {
1407                         cnt = (nframes64_t) prefix;
1408                 }
1409         }
1410
1411         if ((pos = get_preferred_edit_position()) < 0) {
1412                 return;
1413         }
1414
1415         if (pos < cnt) {
1416                 pos = 0;
1417         } else {
1418                 pos -= cnt;
1419         }
1420
1421         // EDIT CURSOR edit_cursor->set_position (pos);
1422 }
1423
1424 void
1425 Editor::edit_cursor_forward ()
1426 {
1427         //nframes64_t pos;
1428         nframes64_t cnt;
1429         bool was_floating;
1430         float prefix;
1431
1432         if (get_prefix (prefix, was_floating)) {
1433                 cnt = 1;
1434         } else {
1435                 if (was_floating) {
1436                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1437                 } else {
1438                         cnt = (nframes64_t) floor (prefix);
1439                 }
1440         }
1441
1442         // pos = edit_cursor->current_frame;
1443         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1444 }
1445
1446 void
1447 Editor::goto_frame ()
1448 {
1449         float prefix;
1450         bool was_floating;
1451         nframes64_t frame;
1452
1453         if (get_prefix (prefix, was_floating)) {
1454                 return;
1455         }
1456
1457         if (was_floating) {
1458                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1459         } else {
1460                 frame = (nframes64_t) floor (prefix);
1461         }
1462
1463         session->request_locate (frame);
1464 }
1465
1466 void
1467 Editor::scroll_backward (float pages)
1468 {
1469         nframes64_t frame;
1470         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1471         bool was_floating;
1472         float prefix;
1473         nframes64_t cnt;
1474
1475         if (get_prefix (prefix, was_floating)) {
1476                 cnt = (nframes64_t) floor (pages * one_page);
1477         } else {
1478                 if (was_floating) {
1479                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1480                 } else {
1481                         cnt = (nframes64_t) floor (prefix * one_page);
1482                 }
1483         }
1484
1485         if (leftmost_frame < cnt) {
1486                 frame = 0;
1487         } else {
1488                 frame = leftmost_frame - cnt;
1489         }
1490
1491         reset_x_origin (frame);
1492 }
1493
1494 void
1495 Editor::scroll_forward (float pages)
1496 {
1497         nframes64_t frame;
1498         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1499         bool was_floating;
1500         float prefix;
1501         nframes64_t cnt;
1502
1503         if (get_prefix (prefix, was_floating)) {
1504                 cnt = (nframes64_t) floor (pages * one_page);
1505         } else {
1506                 if (was_floating) {
1507                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1508                 } else {
1509                         cnt = (nframes64_t) floor (prefix * one_page);
1510                 }
1511         }
1512
1513         if (max_frames - cnt < leftmost_frame) {
1514                 frame = max_frames - cnt;
1515         } else {
1516                 frame = leftmost_frame + cnt;
1517         }
1518
1519         reset_x_origin (frame);
1520 }
1521
1522 void
1523 Editor::scroll_tracks_down ()
1524 {
1525         float prefix;
1526         bool was_floating;
1527         int cnt;
1528
1529         if (get_prefix (prefix, was_floating)) {
1530                 cnt = 1;
1531         } else {
1532                 cnt = (int) floor (prefix);
1533         }
1534
1535         double vert_value = vertical_adjustment.get_value() + (cnt *
1536                 vertical_adjustment.get_page_size());
1537         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1538                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1539         }
1540         vertical_adjustment.set_value (vert_value);
1541 }
1542
1543 void
1544 Editor::scroll_tracks_up ()
1545 {
1546         float prefix;
1547         bool was_floating;
1548         int cnt;
1549
1550         if (get_prefix (prefix, was_floating)) {
1551                 cnt = 1;
1552         } else {
1553                 cnt = (int) floor (prefix);
1554         }
1555
1556         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1557 }
1558
1559 void
1560 Editor::scroll_tracks_down_line ()
1561 {
1562
1563         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1564         double vert_value = adj->get_value() + 60;
1565
1566         if (vert_value>adj->get_upper() - canvas_height) {
1567                 vert_value = adj->get_upper() - canvas_height;
1568         }
1569         adj->set_value (vert_value);
1570 }
1571
1572 void
1573 Editor::scroll_tracks_up_line ()
1574 {
1575         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1576         adj->set_value (adj->get_value() - 60);
1577 }
1578
1579 /* ZOOM */
1580
1581 void
1582 Editor::temporal_zoom_step (bool coarser)
1583 {
1584         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1585
1586         double nfpu;
1587
1588         nfpu = frames_per_unit;
1589
1590         if (coarser) {
1591                 nfpu *= 1.61803399;
1592         } else {
1593                 nfpu = max(1.0,(nfpu/1.61803399));
1594         }
1595
1596         temporal_zoom (nfpu);
1597 }
1598
1599 void
1600 Editor::temporal_zoom (gdouble fpu)
1601 {
1602         if (!session) return;
1603
1604         nframes64_t current_page = current_page_frames();
1605         nframes64_t current_leftmost = leftmost_frame;
1606         nframes64_t current_rightmost;
1607         nframes64_t current_center;
1608         nframes64_t new_page_size;
1609         nframes64_t half_page_size;
1610         nframes64_t leftmost_after_zoom = 0;
1611         nframes64_t where;
1612         bool in_track_canvas;
1613         double nfpu;
1614         double l;
1615
1616         /* XXX this limit is also in ::set_frames_per_unit() */
1617
1618         if (frames_per_unit < 1.0 && fpu <= frames_per_unit) {
1619                 return;
1620         }
1621
1622         nfpu = fpu;
1623
1624         new_page_size = (nframes64_t) floor (canvas_width * nfpu);
1625         half_page_size = new_page_size / 2;
1626
1627         switch (zoom_focus) {
1628         case ZoomFocusLeft:
1629                 leftmost_after_zoom = current_leftmost;
1630                 break;
1631
1632         case ZoomFocusRight:
1633                 current_rightmost = leftmost_frame + current_page;
1634                 if (current_rightmost < new_page_size) {
1635                         leftmost_after_zoom = 0;
1636                 } else {
1637                         leftmost_after_zoom = current_rightmost - new_page_size;
1638                 }
1639                 break;
1640
1641         case ZoomFocusCenter:
1642                 current_center = current_leftmost + (current_page/2);
1643                 if (current_center < half_page_size) {
1644                         leftmost_after_zoom = 0;
1645                 } else {
1646                         leftmost_after_zoom = current_center - half_page_size;
1647                 }
1648                 break;
1649
1650         case ZoomFocusPlayhead:
1651                 /* try to keep the playhead in the same place */
1652
1653                 where = playhead_cursor->current_frame;
1654
1655                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1656
1657                 if (l < 0) {
1658                         leftmost_after_zoom = 0;
1659                 } else if (l > max_frames) {
1660                         leftmost_after_zoom = max_frames - new_page_size;
1661                 } else {
1662                         leftmost_after_zoom = (nframes64_t) l;
1663                 }
1664                 break;
1665
1666         case ZoomFocusMouse:
1667                 /* try to keep the mouse over the same point in the display */
1668
1669                 if (!mouse_frame (where, in_track_canvas)) {
1670                         /* use playhead instead */
1671                         where = playhead_cursor->current_frame;
1672
1673                         if (where < half_page_size) {
1674                                 leftmost_after_zoom = 0;
1675                         } else {
1676                                 leftmost_after_zoom = where - half_page_size;
1677                         }
1678
1679                 } else {
1680
1681                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1682
1683                         if (l < 0) {
1684                                 leftmost_after_zoom = 0;
1685                         } else if (l > max_frames) {
1686                                 leftmost_after_zoom = max_frames - new_page_size;
1687                         } else {
1688                                 leftmost_after_zoom = (nframes64_t) l;
1689                         }
1690                 }
1691
1692                 break;
1693
1694         case ZoomFocusEdit:
1695                 /* try to keep the edit point in the same place */
1696                 where = get_preferred_edit_position ();
1697
1698                 if (where > 0) {
1699
1700                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1701
1702                         if (l < 0) {
1703                                 leftmost_after_zoom = 0;
1704                         } else if (l > max_frames) {
1705                                 leftmost_after_zoom = max_frames - new_page_size;
1706                         } else {
1707                                 leftmost_after_zoom = (nframes64_t) l;
1708                         }
1709
1710                 } else {
1711                         /* edit point not defined */
1712                         return;
1713                 }
1714                 break;
1715
1716         }
1717
1718         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1719
1720         reposition_and_zoom (leftmost_after_zoom, nfpu);
1721 }
1722
1723 void
1724 Editor::temporal_zoom_region (bool both_axes)
1725 {
1726
1727         nframes64_t start = max_frames;
1728         nframes64_t end = 0;
1729         RegionSelection rs;
1730         set<TimeAxisView*> tracks;
1731
1732         get_regions_for_action (rs);
1733
1734         if (rs.empty()) {
1735                 return;
1736         }
1737
1738         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1739
1740                 if ((*i)->region()->position() < start) {
1741                         start = (*i)->region()->position();
1742                 }
1743
1744                 if ((*i)->region()->last_frame() + 1 > end) {
1745                         end = (*i)->region()->last_frame() + 1;
1746                 }
1747
1748                 tracks.insert (&((*i)->get_time_axis_view()));
1749         }
1750
1751         /* now comes an "interesting" hack ... make sure we leave a little space
1752            at each end of the editor so that the zoom doesn't fit the region
1753            precisely to the screen.
1754         */
1755
1756         GdkScreen* screen = gdk_screen_get_default ();
1757         gint pixwidth = gdk_screen_get_width (screen);
1758         gint mmwidth = gdk_screen_get_width_mm (screen);
1759         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1760         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1761
1762         if ((start == 0 && end == 0) || end < start) {
1763                 return;
1764         }
1765
1766         nframes64_t range = end - start;
1767         double new_fpu = (double)range / (double)canvas_width;
1768         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1769
1770         if (start > extra_samples) {
1771                 start -= extra_samples;
1772         } else {
1773                 start = 0;
1774         }
1775
1776         if (max_frames - extra_samples > end) {
1777                 end += extra_samples;
1778         } else {
1779                 end = max_frames;
1780         }
1781
1782         if (both_axes) {
1783                 /* save visual state with track states included, and prevent
1784                    set_frames_per_unit() from doing it again.
1785                 */
1786                 undo_visual_stack.push_back (current_visual_state(true));
1787                 no_save_visual = true;
1788         }
1789
1790         temporal_zoom_by_frame (start, end, "zoom to region");
1791
1792         if (both_axes) {
1793                 uint32_t per_track_height = (uint32_t) floor ((canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1794
1795                 /* set visible track heights appropriately */
1796
1797                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1798                         (*t)->set_height (per_track_height);
1799                 }
1800
1801                 /* hide irrelevant tracks */
1802
1803                 no_route_list_redisplay = true;
1804
1805                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1806                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1807                                 hide_track_in_display (**i, true);
1808                         }
1809                 }
1810
1811                 no_route_list_redisplay = false;
1812                 redisplay_route_list ();
1813
1814                 vertical_adjustment.set_value (0);
1815                 no_save_visual = false;
1816         }
1817
1818         zoomed_to_region = true;
1819         redo_visual_stack.push_back (current_visual_state());
1820 }
1821
1822 void
1823 Editor::toggle_zoom_region (bool both_axes)
1824 {
1825         if (zoomed_to_region) {
1826                 swap_visual_state ();
1827         } else {
1828                 temporal_zoom_region (both_axes);
1829         }
1830 }
1831
1832 void
1833 Editor::temporal_zoom_selection ()
1834 {
1835         if (!selection) return;
1836
1837         if (selection->time.empty()) {
1838                 return;
1839         }
1840
1841         nframes64_t start = selection->time[clicked_selection].start;
1842         nframes64_t end = selection->time[clicked_selection].end;
1843
1844         temporal_zoom_by_frame (start, end, "zoom to selection");
1845 }
1846
1847 void
1848 Editor::temporal_zoom_session ()
1849 {
1850         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1851
1852         if (session) {
1853                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1854         }
1855 }
1856
1857 void
1858 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & op)
1859 {
1860         if (!session) return;
1861
1862         if ((start == 0 && end == 0) || end < start) {
1863                 return;
1864         }
1865
1866         nframes64_t range = end - start;
1867
1868         double new_fpu = (double)range / (double)canvas_width;
1869
1870         nframes64_t new_page = (nframes64_t) floor (canvas_width * new_fpu);
1871         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1872         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1873
1874         if (new_leftmost > middle) {
1875                 new_leftmost = 0;
1876         }
1877
1878         reposition_and_zoom (new_leftmost, new_fpu);
1879 }
1880
1881 void
1882 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1883 {
1884         if (!session) {
1885                 return;
1886         }
1887         double range_before = frame - leftmost_frame;
1888         double new_fpu;
1889
1890         new_fpu = frames_per_unit;
1891
1892         if (coarser) {
1893                 new_fpu *= 1.61803399;
1894                 range_before *= 1.61803399;
1895         } else {
1896                 new_fpu = max(1.0,(new_fpu/1.61803399));
1897                 range_before /= 1.61803399;
1898         }
1899
1900         if (new_fpu == frames_per_unit)  {
1901                 return;
1902         }
1903
1904         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1905
1906         if (new_leftmost > frame) {
1907                 new_leftmost = 0;
1908         }
1909 //      begin_reversible_command (_("zoom to frame"));
1910 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1911 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1912 //      commit_reversible_command ();
1913
1914         reposition_and_zoom (new_leftmost, new_fpu);
1915 }
1916
1917
1918 bool
1919 Editor::choose_new_marker_name(string &name) {
1920
1921         if (!Config->get_name_new_markers()) {
1922                 /* don't prompt user for a new name */
1923                 return true;
1924         }
1925
1926         ArdourPrompter dialog (true);
1927
1928         dialog.set_prompt (_("New Name:"));
1929
1930         WindowTitle title(Glib::get_application_name());
1931         title += _("Name New Location Marker");
1932
1933         dialog.set_title(title.get_string());
1934
1935         dialog.set_name ("MarkNameWindow");
1936         dialog.set_size_request (250, -1);
1937         dialog.set_position (Gtk::WIN_POS_MOUSE);
1938
1939         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1940         dialog.set_initial_text (name);
1941
1942         dialog.show ();
1943
1944         switch (dialog.run ()) {
1945         case RESPONSE_ACCEPT:
1946                 break;
1947         default:
1948                 return false;
1949         }
1950
1951         dialog.get_result(name);
1952         return true;
1953
1954 }
1955
1956
1957 void
1958 Editor::add_location_from_selection ()
1959 {
1960         string rangename;
1961
1962         if (selection->time.empty()) {
1963                 return;
1964         }
1965
1966         if (session == 0 || clicked_trackview == 0) {
1967                 return;
1968         }
1969
1970         nframes64_t start = selection->time[clicked_selection].start;
1971         nframes64_t end = selection->time[clicked_selection].end;
1972
1973         session->locations()->next_available_name(rangename,"selection");
1974         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1975
1976         session->begin_reversible_command (_("add marker"));
1977         XMLNode &before = session->locations()->get_state();
1978         session->locations()->add (location, true);
1979         XMLNode &after = session->locations()->get_state();
1980         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1981         session->commit_reversible_command ();
1982 }
1983
1984 void
1985 Editor::add_location_mark (nframes64_t where)
1986 {
1987         string markername;
1988
1989         select_new_marker = true;
1990
1991         session->locations()->next_available_name(markername,"mark");
1992         if (!choose_new_marker_name(markername)) {
1993                 return;
1994         }
1995         Location *location = new Location (where, where, markername, Location::IsMark);
1996         session->begin_reversible_command (_("add marker"));
1997         XMLNode &before = session->locations()->get_state();
1998         session->locations()->add (location, true);
1999         XMLNode &after = session->locations()->get_state();
2000         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2001         session->commit_reversible_command ();
2002 }
2003
2004 void
2005 Editor::add_location_from_playhead_cursor ()
2006 {
2007         add_location_mark (session->audible_frame());
2008 }
2009
2010 void
2011 Editor::add_locations_from_audio_region ()
2012 {
2013         RegionSelection rs;
2014
2015         get_regions_for_action (rs);
2016
2017         if (rs.empty()) {
2018                 return;
2019         }
2020
2021         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
2022         XMLNode &before = session->locations()->get_state();
2023
2024         cerr << "Add locations\n";
2025
2026         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
2027
2028                 boost::shared_ptr<Region> region = (*i)->region ();
2029
2030                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
2031
2032                 session->locations()->add (location, true);
2033         }
2034
2035         XMLNode &after = session->locations()->get_state();
2036         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2037         session->commit_reversible_command ();
2038 }
2039
2040 void
2041 Editor::add_location_from_audio_region ()
2042 {
2043         RegionSelection rs;
2044
2045         get_regions_for_action (rs);
2046
2047         if (rs.empty()) {
2048                 return;
2049         }
2050
2051         session->begin_reversible_command (_("add marker"));
2052         XMLNode &before = session->locations()->get_state();
2053
2054         string markername;
2055
2056         if (rs.size() > 1) {            // more than one region selected
2057                 session->locations()->next_available_name(markername, "regions");
2058         } else {
2059                 RegionView* rv = *(rs.begin());
2060                 boost::shared_ptr<Region> region = rv->region();
2061                 markername = region->name();
2062         }
2063
2064         if (!choose_new_marker_name(markername)) {
2065                 return;
2066         }
2067
2068         cerr << "Add location\n";
2069
2070         // single range spanning all selected
2071         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2072         session->locations()->add (location, true);
2073
2074         XMLNode &after = session->locations()->get_state();
2075         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2076         session->commit_reversible_command ();
2077 }
2078
2079 void
2080 Editor::amplitude_zoom_step (bool in)
2081 {
2082         gdouble zoom = 1.0;
2083
2084         if (in) {
2085                 zoom *= 2.0;
2086         } else {
2087                 if (zoom > 2.0) {
2088                         zoom /= 2.0;
2089                 } else {
2090                         zoom = 1.0;
2091                 }
2092         }
2093
2094 #ifdef FIX_FOR_CANVAS
2095         /* XXX DO SOMETHING */
2096 #endif
2097 }
2098
2099
2100 /* DELETION */
2101
2102
2103 void
2104 Editor::delete_sample_forward ()
2105 {
2106 }
2107
2108 void
2109 Editor::delete_sample_backward ()
2110 {
2111 }
2112
2113 void
2114 Editor::delete_screen ()
2115 {
2116 }
2117
2118 /* SEARCH */
2119
2120 void
2121 Editor::search_backwards ()
2122 {
2123         /* what ? */
2124 }
2125
2126 void
2127 Editor::search_forwards ()
2128 {
2129         /* what ? */
2130 }
2131
2132 /* MARKS */
2133
2134 void
2135 Editor::jump_forward_to_mark ()
2136 {
2137         if (!session) {
2138                 return;
2139         }
2140
2141         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2142
2143         if (location) {
2144                 session->request_locate (location->start(), session->transport_rolling());
2145         } else {
2146                 session->request_locate (session->current_end_frame());
2147         }
2148 }
2149
2150 void
2151 Editor::jump_backward_to_mark ()
2152 {
2153         if (!session) {
2154                 return;
2155         }
2156
2157         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2158
2159         if (location) {
2160                 session->request_locate (location->start(), session->transport_rolling());
2161         } else {
2162                 session->goto_start ();
2163         }
2164 }
2165
2166 void
2167 Editor::set_mark ()
2168 {
2169         nframes64_t pos;
2170         float prefix;
2171         bool was_floating;
2172         string markername;
2173
2174         if (get_prefix (prefix, was_floating)) {
2175                 pos = session->audible_frame ();
2176         } else {
2177                 if (was_floating) {
2178                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2179                 } else {
2180                         pos = (nframes64_t) floor (prefix);
2181                 }
2182         }
2183
2184         session->locations()->next_available_name(markername,"mark");
2185         if (!choose_new_marker_name(markername)) {
2186                 return;
2187         }
2188         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2189 }
2190
2191 void
2192 Editor::clear_markers ()
2193 {
2194         if (session) {
2195                 session->begin_reversible_command (_("clear markers"));
2196                 XMLNode &before = session->locations()->get_state();
2197                 session->locations()->clear_markers ();
2198                 XMLNode &after = session->locations()->get_state();
2199                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2200                 session->commit_reversible_command ();
2201         }
2202 }
2203
2204 void
2205 Editor::clear_ranges ()
2206 {
2207         if (session) {
2208                 session->begin_reversible_command (_("clear ranges"));
2209                 XMLNode &before = session->locations()->get_state();
2210
2211                 Location * looploc = session->locations()->auto_loop_location();
2212                 Location * punchloc = session->locations()->auto_punch_location();
2213
2214                 session->locations()->clear_ranges ();
2215                 // re-add these
2216                 if (looploc) session->locations()->add (looploc);
2217                 if (punchloc) session->locations()->add (punchloc);
2218
2219                 XMLNode &after = session->locations()->get_state();
2220                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2221                 session->commit_reversible_command ();
2222         }
2223 }
2224
2225 void
2226 Editor::clear_locations ()
2227 {
2228         session->begin_reversible_command (_("clear locations"));
2229         XMLNode &before = session->locations()->get_state();
2230         session->locations()->clear ();
2231         XMLNode &after = session->locations()->get_state();
2232         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2233         session->commit_reversible_command ();
2234         session->locations()->clear ();
2235 }
2236
2237 void
2238 Editor::unhide_markers ()
2239 {
2240         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2241                 Location *l = (*i).first;
2242                 if (l->is_hidden() && l->is_mark()) {
2243                         l->set_hidden(false, this);
2244                 }
2245         }
2246 }
2247
2248 void
2249 Editor::unhide_ranges ()
2250 {
2251         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2252                 Location *l = (*i).first;
2253                 if (l->is_hidden() && l->is_range_marker()) {
2254                         l->set_hidden(false, this);
2255                 }
2256         }
2257 }
2258
2259 /* INSERT/REPLACE */
2260
2261 void
2262 Editor::insert_region_list_drag (boost::shared_ptr<AudioRegion> region, int x, int y)
2263 {
2264         double wx, wy;
2265         double cx, cy;
2266         TimeAxisView *tv;
2267         nframes64_t where;
2268         AudioTimeAxisView *atv = 0;
2269         boost::shared_ptr<Playlist> playlist;
2270
2271         track_canvas->window_to_world (x, y, wx, wy);
2272         //wx += horizontal_adjustment.get_value();
2273         //wy += vertical_adjustment.get_value();
2274
2275         GdkEvent event;
2276         event.type = GDK_BUTTON_RELEASE;
2277         event.button.x = wx;
2278         event.button.y = wy;
2279
2280         where = event_frame (&event, &cx, &cy);
2281
2282         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2283                 /* clearly outside canvas area */
2284                 return;
2285         }
2286
2287         if ((tv = trackview_by_y_position (cy)) == 0) {
2288                 return;
2289         }
2290
2291         if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) == 0) {
2292                 return;
2293         }
2294
2295         if ((playlist = atv->playlist()) == 0) {
2296                 return;
2297         }
2298
2299         snap_to (where);
2300
2301         begin_reversible_command (_("insert dragged region"));
2302         XMLNode &before = playlist->get_state();
2303         playlist->add_region (RegionFactory::create (region), where, 1.0);
2304         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2305         commit_reversible_command ();
2306 }
2307
2308 void
2309 Editor::insert_region_list_selection (float times)
2310 {
2311         RouteTimeAxisView *tv = 0;
2312         boost::shared_ptr<Playlist> playlist;
2313
2314         if (clicked_audio_trackview != 0) {
2315                 tv = clicked_audio_trackview;
2316         } else if (!selection->tracks.empty()) {
2317                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2318                         return;
2319                 }
2320         } else if (entered_track != 0) {
2321                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2322                         return;
2323                 }
2324         } else {
2325                 return;
2326         }
2327
2328         if ((playlist = tv->playlist()) == 0) {
2329                 return;
2330         }
2331
2332         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2333
2334         if (selected->count_selected_rows() != 1) {
2335                 return;
2336         }
2337
2338         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2339
2340         /* only one row selected, so rows.begin() is it */
2341
2342         TreeIter iter;
2343
2344         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2345
2346                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2347
2348                 begin_reversible_command (_("insert region"));
2349                 XMLNode &before = playlist->get_state();
2350                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2351                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2352                 commit_reversible_command ();
2353         }
2354 }
2355
2356 /* BUILT-IN EFFECTS */
2357
2358 void
2359 Editor::reverse_selection ()
2360 {
2361
2362 }
2363
2364 /* GAIN ENVELOPE EDITING */
2365
2366 void
2367 Editor::edit_envelope ()
2368 {
2369 }
2370
2371 /* PLAYBACK */
2372
2373 void
2374 Editor::transition_to_rolling (bool fwd)
2375 {
2376         if (!session) {
2377                 return;
2378         }
2379
2380         switch (Config->get_slave_source()) {
2381         case None:
2382         case JACK:
2383                 break;
2384         default:
2385                 /* transport controlled by the master */
2386                 return;
2387         }
2388
2389         if (session->is_auditioning()) {
2390                 session->cancel_audition ();
2391                 return;
2392         }
2393
2394         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2395 }
2396
2397 void
2398 Editor::toggle_playback (bool with_abort)
2399 {
2400         if (!session) {
2401                 return;
2402         }
2403
2404         switch (Config->get_slave_source()) {
2405         case None:
2406         case JACK:
2407                 break;
2408         default:
2409                 /* transport controlled by the master */
2410                 return;
2411         }
2412
2413         if (session->is_auditioning()) {
2414                 session->cancel_audition ();
2415                 return;
2416         }
2417
2418         if (session->transport_rolling()) {
2419                 session->request_stop (with_abort);
2420                 if (session->get_play_loop()) {
2421                         session->request_play_loop (false);
2422                 }
2423         } else {
2424                 session->request_transport_speed (1.0f);
2425         }
2426 }
2427
2428 void
2429 Editor::play_from_start ()
2430 {
2431         session->request_locate (session->current_start_frame(), true);
2432 }
2433
2434 void
2435 Editor::play_from_edit_point ()
2436 {
2437         session->request_locate (get_preferred_edit_position(), true);
2438 }
2439
2440 void
2441 Editor::play_from_edit_point_and_return ()
2442 {
2443         nframes64_t start_frame;
2444         nframes64_t return_frame;
2445
2446         start_frame = get_preferred_edit_position (true);
2447
2448         if (session->transport_rolling()) {
2449                 session->request_locate (start_frame, false);
2450                 return;
2451         }
2452
2453         /* don't reset the return frame if its already set */
2454
2455         if ((return_frame = session->requested_return_frame()) < 0) {
2456                 return_frame = session->audible_frame();
2457         }
2458
2459         if (start_frame >= 0) {
2460                 session->request_roll_at_and_return (start_frame, return_frame);
2461         }
2462 }
2463
2464 void
2465 Editor::play_selection ()
2466 {
2467         if (selection->time.empty()) {
2468                 return;
2469         }
2470
2471         session->request_play_range (true);
2472 }
2473
2474 void
2475 Editor::loop_selected_region ()
2476 {
2477         RegionSelection rs;
2478
2479         get_regions_for_action (rs);
2480
2481         if (!rs.empty()) {
2482                 RegionView *rv = *(rs.begin());
2483                 Location* tll;
2484
2485                 if ((tll = transport_loop_location()) != 0)  {
2486
2487                         tll->set (rv->region()->position(), rv->region()->last_frame());
2488
2489                         // enable looping, reposition and start rolling
2490
2491                         session->request_play_loop (true);
2492                         session->request_locate (tll->start(), false);
2493                         session->request_transport_speed (1.0f);
2494                 }
2495         }
2496 }
2497
2498 void
2499 Editor::play_location (Location& location)
2500 {
2501         if (location.start() <= location.end()) {
2502                 return;
2503         }
2504
2505         session->request_bounded_roll (location.start(), location.end());
2506 }
2507
2508 void
2509 Editor::loop_location (Location& location)
2510 {
2511         if (location.start() <= location.end()) {
2512                 return;
2513         }
2514
2515         Location* tll;
2516
2517         if ((tll = transport_loop_location()) != 0) {
2518                 tll->set (location.start(), location.end());
2519
2520                 // enable looping, reposition and start rolling
2521                 session->request_play_loop (true);
2522                 session->request_locate (tll->start(), true);
2523         }
2524 }
2525
2526 void
2527 Editor::raise_region ()
2528 {
2529         selection->foreach_region (&Region::raise);
2530 }
2531
2532 void
2533 Editor::raise_region_to_top ()
2534 {
2535         selection->foreach_region (&Region::raise_to_top);
2536 }
2537
2538 void
2539 Editor::lower_region ()
2540 {
2541         selection->foreach_region (&Region::lower);
2542 }
2543
2544 void
2545 Editor::lower_region_to_bottom ()
2546 {
2547         selection->foreach_region (&Region::lower_to_bottom);
2548 }
2549
2550 void
2551 Editor::edit_region ()
2552 {
2553         if (clicked_regionview == 0) {
2554                 return;
2555         }
2556
2557         clicked_regionview->show_region_editor ();
2558 }
2559
2560 void
2561 Editor::rename_region()
2562 {
2563         RegionSelection rs;
2564
2565         get_regions_for_action (rs);
2566
2567         if (rs.empty()) {
2568                 return;
2569         }
2570
2571         WindowTitle title (Glib::get_application_name());
2572         title += _("Rename Region");
2573
2574         ArdourDialog d (*this, title.get_string(), true, false);
2575         Entry entry;
2576         Label label (_("New name:"));
2577         HBox hbox;
2578
2579         hbox.set_spacing (6);
2580         hbox.pack_start (label, false, false);
2581         hbox.pack_start (entry, true, true);
2582
2583         d.get_vbox()->set_border_width (12);
2584         d.get_vbox()->pack_start (hbox, false, false);
2585
2586         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2587         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2588
2589         d.set_size_request (300, -1);
2590         d.set_position (Gtk::WIN_POS_MOUSE);
2591
2592         entry.set_text (rs.front()->region()->name());
2593         entry.select_region (0, -1);
2594
2595         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2596
2597         d.show_all ();
2598
2599         entry.grab_focus();
2600
2601         int ret = d.run();
2602
2603         d.hide ();
2604
2605         if (ret == RESPONSE_OK) {
2606                 std::string str = entry.get_text();
2607                 strip_whitespace_edges (str);
2608                 if (!str.empty()) {
2609                         rs.front()->region()->set_name (str);
2610                         redisplay_regions ();
2611                 }
2612         }
2613 }
2614
2615 void
2616 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2617 {
2618         if (session->is_auditioning()) {
2619                 session->cancel_audition ();
2620         }
2621
2622         // note: some potential for creativity here, because region doesn't
2623         // have to belong to the playlist that Route is handling
2624
2625         // bool was_soloed = route.soloed();
2626
2627         route.set_solo (true, this);
2628
2629         session->request_bounded_roll (region->position(), region->position() + region->length());
2630
2631         /* XXX how to unset the solo state ? */
2632 }
2633
2634 void
2635 Editor::play_edit_range ()
2636 {
2637         nframes64_t start, end;
2638
2639         if (get_edit_op_range (start, end)) {
2640                 session->request_bounded_roll (start, end);
2641         }
2642 }
2643
2644 void
2645 Editor::play_selected_region ()
2646 {
2647         nframes64_t start = max_frames;
2648         nframes64_t end = 0;
2649         RegionSelection rs;
2650
2651         get_regions_for_action (rs);
2652
2653         if (rs.empty()) {
2654                 return;
2655         }
2656
2657         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2658                 if ((*i)->region()->position() < start) {
2659                         start = (*i)->region()->position();
2660                 }
2661                 if ((*i)->region()->last_frame() + 1 > end) {
2662                         end = (*i)->region()->last_frame() + 1;
2663                 }
2664         }
2665
2666         session->request_stop ();
2667         session->request_bounded_roll (start, end);
2668 }
2669
2670 void
2671 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2672 {
2673         session->audition_region (region);
2674 }
2675
2676 void
2677 Editor::build_interthread_progress_window ()
2678 {
2679         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2680
2681         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2682
2683         interthread_progress_window->set_border_width (12);
2684         interthread_progress_window->get_vbox()->set_spacing (6);
2685
2686         interthread_progress_label.set_alignment (0.5, 0.5);
2687
2688         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2689         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2690
2691         // GTK2FIX: this button needs a modifiable label
2692
2693         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2694         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2695
2696         interthread_cancel_button.add (interthread_cancel_label);
2697
2698         interthread_progress_window->set_default_size (200, 100);
2699 }
2700
2701 void
2702 Editor::interthread_cancel_clicked ()
2703 {
2704         if (current_interthread_info) {
2705                 current_interthread_info->cancel = true;
2706         }
2707 }
2708
2709 void
2710 Editor::region_from_selection ()
2711 {
2712         if (clicked_trackview == 0) {
2713                 return;
2714         }
2715
2716         if (selection->time.empty()) {
2717                 return;
2718         }
2719
2720         nframes64_t start = selection->time[clicked_selection].start;
2721         nframes64_t end = selection->time[clicked_selection].end;
2722
2723         nframes64_t selection_cnt = end - start + 1;
2724
2725         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2726                 boost::shared_ptr<AudioRegion> current;
2727                 boost::shared_ptr<Region> current_r;
2728                 boost::shared_ptr<Playlist> pl;
2729
2730                 nframes64_t internal_start;
2731                 string new_name;
2732
2733                 if ((pl = (*i)->playlist()) == 0) {
2734                         continue;
2735                 }
2736
2737                 if ((current_r = pl->top_region_at (start)) == 0) {
2738                         continue;
2739                 }
2740
2741                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2742                 // FIXME: audio only
2743                 if (current != 0) {
2744                         internal_start = start - current->position();
2745                         session->region_name (new_name, current->name(), true);
2746                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2747                 }
2748         }
2749 }
2750
2751 void
2752 Editor::create_region_from_selection (vector<boost::shared_ptr<AudioRegion> >& new_regions)
2753 {
2754         if (selection->time.empty() || selection->tracks.empty()) {
2755                 return;
2756         }
2757
2758         nframes64_t start = selection->time[clicked_selection].start;
2759         nframes64_t end = selection->time[clicked_selection].end;
2760
2761         sort_track_selection ();
2762
2763         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2764
2765                 boost::shared_ptr<AudioRegion> current;
2766                 boost::shared_ptr<Region> current_r;
2767                 boost::shared_ptr<Playlist> playlist;
2768                 nframes64_t internal_start;
2769                 string new_name;
2770
2771                 if ((playlist = (*i)->playlist()) == 0) {
2772                         continue;
2773                 }
2774
2775                 if ((current_r = playlist->top_region_at(start)) == 0) {
2776                         continue;
2777                 }
2778
2779                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2780                         continue;
2781                 }
2782
2783                 internal_start = start - current->position();
2784                 session->region_name (new_name, current->name(), true);
2785
2786                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2787         }
2788 }
2789
2790 void
2791 Editor::split_multichannel_region ()
2792 {
2793         RegionSelection rs;
2794
2795         get_regions_for_action (rs);
2796
2797         if (rs.empty()) {
2798                 return;
2799         }
2800
2801         vector<boost::shared_ptr<AudioRegion> > v;
2802
2803         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2804
2805                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2806
2807                 if (!arv || arv->audio_region()->n_channels() < 2) {
2808                         continue;
2809                 }
2810
2811                 (arv)->audio_region()->separate_by_channel (*session, v);
2812         }
2813 }
2814
2815 void
2816 Editor::new_region_from_selection ()
2817 {
2818         region_from_selection ();
2819         cancel_selection ();
2820 }
2821
2822 static void
2823 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2824 {
2825         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2826         case OverlapNone:
2827                 break;
2828         default:
2829                 rs->push_back (rv);
2830         }
2831 }
2832
2833 void
2834 Editor::separate_regions_between (const TimeSelection& ts)
2835 {
2836         bool in_command = false;
2837         boost::shared_ptr<Playlist> playlist;
2838         RegionSelection new_selection;
2839         TrackSelection tmptracks;
2840
2841         if (selection->tracks.empty()) {
2842
2843                 /* use tracks with selected regions */
2844
2845                 RegionSelection rs;
2846
2847                 get_regions_for_action (rs);
2848
2849                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2850                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2851
2852                         if (find (tmptracks.begin(), tmptracks.end(), tv) == tmptracks.end()) {
2853                                 tmptracks.push_back (tv);
2854                         }
2855                 }
2856
2857                 if (tmptracks.empty()) {
2858                         /* no regions selected: do nothing */
2859                         return;
2860                 }
2861
2862         } else {
2863
2864                 tmptracks = selection->tracks;
2865
2866         }
2867
2868         sort_track_selection (&tmptracks);
2869
2870         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2871
2872                 AudioTimeAxisView* atv;
2873
2874                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2875
2876                         if (atv->is_audio_track()) {
2877
2878                                 /* no edits to destructive tracks */
2879
2880                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2881                                         continue;
2882                                 }
2883
2884                                 if ((playlist = atv->playlist()) != 0) {
2885
2886
2887                                         XMLNode *before;
2888                                         bool got_some;
2889
2890                                         before = &(playlist->get_state());
2891                                         got_some = false;
2892
2893                                         /* XXX need to consider musical time selections here at some point */
2894
2895                                         double speed = atv->get_diskstream()->speed();
2896
2897
2898                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2899
2900                                                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2901                                                 latest_regionviews.clear ();
2902
2903                                                 playlist->partition ((nframes64_t)((*t).start * speed), (nframes64_t)((*t).end * speed), true);
2904
2905                                                 c.disconnect ();
2906
2907                                                 if (!latest_regionviews.empty()) {
2908
2909                                                         got_some = true;
2910
2911                                                         atv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2912
2913                                                         if (!in_command) {
2914                                                                 begin_reversible_command (_("separate"));
2915                                                                 in_command = true;
2916                                                         }
2917
2918                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2919
2920                                                 }
2921                                         }
2922
2923                                         if (!got_some) {
2924                                                 delete before;
2925                                         }
2926                                 }
2927                         }
2928                 }
2929         }
2930
2931         if (in_command) {
2932                 selection->set (new_selection);
2933                 set_mouse_mode (MouseObject);
2934
2935                 commit_reversible_command ();
2936         }
2937 }
2938
2939 void
2940 Editor::separate_region_from_selection ()
2941 {
2942         /* preferentially use *all* ranges in the time selection if we're in range mode
2943            to allow discontiguous operation, since get_edit_op_range() currently
2944            returns a single range.
2945         */
2946
2947         if (mouse_mode == MouseRange && !selection->time.empty()) {
2948
2949                 separate_regions_between (selection->time);
2950
2951         } else {
2952
2953                 nframes64_t start;
2954                 nframes64_t end;
2955
2956                 if (get_edit_op_range (start, end)) {
2957
2958                         AudioRange ar (start, end, 1);
2959                         TimeSelection ts;
2960                         ts.push_back (ar);
2961
2962                         separate_regions_between (ts);
2963                 }
2964         }
2965 }
2966
2967 void
2968 Editor::separate_region_from_punch ()
2969 {
2970         Location* loc  = session->locations()->auto_punch_location();
2971         if (loc) {
2972                 separate_regions_using_location (*loc);
2973         }
2974 }
2975
2976 void
2977 Editor::separate_region_from_loop ()
2978 {
2979         Location* loc  = session->locations()->auto_loop_location();
2980         if (loc) {
2981                 separate_regions_using_location (*loc);
2982         }
2983 }
2984
2985 void
2986 Editor::separate_regions_using_location (Location& loc)
2987 {
2988         if (loc.is_mark()) {
2989                 return;
2990         }
2991
2992         AudioRange ar (loc.start(), loc.end(), 1);
2993         TimeSelection ts;
2994
2995         ts.push_back (ar);
2996
2997         separate_regions_between (ts);
2998 }
2999
3000 void
3001 Editor::crop_region_to_selection ()
3002 {
3003         if (!selection->time.empty()) {
3004
3005                 crop_region_to (selection->time.start(), selection->time.end_frame());
3006
3007         } else {
3008
3009                 nframes64_t start;
3010                 nframes64_t end;
3011
3012                 if (get_edit_op_range (start, end)) {
3013                         crop_region_to (start, end);
3014                 }
3015         }
3016
3017 }
3018
3019 void
3020 Editor::crop_region_to (nframes64_t start, nframes64_t end)
3021 {
3022         vector<boost::shared_ptr<Playlist> > playlists;
3023         boost::shared_ptr<Playlist> playlist;
3024         TrackSelection* ts;
3025
3026         if (selection->tracks.empty()) {
3027                 ts = &track_views;
3028         } else {
3029                 sort_track_selection ();
3030                 ts = &selection->tracks;
3031         }
3032
3033         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3034
3035                 AudioTimeAxisView* atv;
3036
3037                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
3038
3039                         if (atv->is_audio_track()) {
3040
3041                                 /* no edits to destructive tracks */
3042
3043                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
3044                                         continue;
3045                                 }
3046
3047                                 if ((playlist = atv->playlist()) != 0) {
3048                                         playlists.push_back (playlist);
3049                                 }
3050                         }
3051                 }
3052         }
3053
3054         if (playlists.empty()) {
3055                 return;
3056         }
3057
3058         nframes64_t the_start;
3059         nframes64_t the_end;
3060         nframes64_t cnt;
3061
3062         begin_reversible_command (_("trim to selection"));
3063
3064         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3065
3066                 boost::shared_ptr<Region> region;
3067
3068                 the_start = start;
3069
3070                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3071                         continue;
3072                 }
3073
3074                 /* now adjust lengths to that we do the right thing
3075                    if the selection extends beyond the region
3076                 */
3077
3078                 the_start = max (the_start, (nframes64_t) region->position());
3079                 if (max_frames - the_start < region->length()) {
3080                         the_end = the_start + region->length() - 1;
3081                 } else {
3082                         the_end = max_frames;
3083                 }
3084                 the_end = min (end, the_end);
3085                 cnt = the_end - the_start + 1;
3086
3087                 XMLNode &before = (*i)->get_state();
3088                 region->trim_to (the_start, cnt, this);
3089                 XMLNode &after = (*i)->get_state();
3090                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3091         }
3092
3093         commit_reversible_command ();
3094 }
3095
3096 void
3097 Editor::region_fill_track ()
3098 {
3099         nframes64_t end;
3100         RegionSelection rs;
3101
3102         get_regions_for_action (rs);
3103
3104         if (!session || rs.empty()) {
3105                 return;
3106         }
3107
3108         end = session->current_end_frame ();
3109
3110         begin_reversible_command (_("region fill"));
3111
3112         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3113
3114                 boost::shared_ptr<Region> region ((*i)->region());
3115
3116                 // FIXME
3117                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3118                 if (!ar)
3119                         continue;
3120
3121                 boost::shared_ptr<Playlist> pl = region->playlist();
3122
3123                 if (end <= region->last_frame()) {
3124                         return;
3125                 }
3126
3127                 double times = (double) (end - region->last_frame()) / (double) region->length();
3128
3129                 if (times == 0) {
3130                         return;
3131                 }
3132
3133                 XMLNode &before = pl->get_state();
3134                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3135                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3136         }
3137
3138         commit_reversible_command ();
3139 }
3140
3141 void
3142 Editor::region_fill_selection ()
3143 {
3144         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3145                 return;
3146         }
3147
3148         if (selection->time.empty()) {
3149                 return;
3150         }
3151
3152
3153         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
3154
3155         if (selected->count_selected_rows() != 1) {
3156                 return;
3157         }
3158
3159         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
3160         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
3161
3162         nframes64_t start = selection->time[clicked_selection].start;
3163         nframes64_t end = selection->time[clicked_selection].end;
3164
3165         boost::shared_ptr<Playlist> playlist;
3166
3167         if (selection->tracks.empty()) {
3168                 return;
3169         }
3170
3171         nframes64_t selection_length = end - start;
3172         float times = (float)selection_length / region->length();
3173
3174         begin_reversible_command (_("fill selection"));
3175
3176         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3177
3178                 if ((playlist = (*i)->playlist()) == 0) {
3179                         continue;
3180                 }
3181
3182                 XMLNode &before = playlist->get_state();
3183                 playlist->add_region (RegionFactory::create (region), start, times);
3184                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3185         }
3186
3187         commit_reversible_command ();
3188 }
3189
3190 void
3191 Editor::set_region_sync_from_edit_point ()
3192 {
3193         nframes64_t where = get_preferred_edit_position ();
3194         RegionSelection rs;
3195         get_regions_for_action (rs);
3196         set_sync_point (where, rs);
3197 }
3198
3199 void
3200 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3201 {
3202         bool in_command = false;
3203
3204         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3205
3206                 if (!(*r)->region()->covers (where)) {
3207                         continue;
3208                 }
3209
3210                 boost::shared_ptr<Region> region ((*r)->region());
3211
3212                 if (!in_command) {
3213                         begin_reversible_command (_("set sync point"));
3214                         in_command = true;
3215                 }
3216
3217                 XMLNode &before = region->playlist()->get_state();
3218                 region->set_sync_position (get_preferred_edit_position());
3219                 XMLNode &after = region->playlist()->get_state();
3220                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3221         }
3222
3223         if (in_command) {
3224                 commit_reversible_command ();
3225         }
3226 }
3227
3228 void
3229 Editor::remove_region_sync ()
3230 {
3231         RegionSelection rs;
3232
3233         get_regions_for_action (rs);
3234
3235         if (rs.empty()) {
3236                 return;
3237         }
3238
3239         begin_reversible_command (_("remove sync"));
3240         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3241
3242                 XMLNode &before = (*i)->region()->playlist()->get_state();
3243                 (*i)->region()->clear_sync_position ();
3244                 XMLNode &after = (*i)->region()->playlist()->get_state();
3245                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3246         }
3247         commit_reversible_command ();
3248 }
3249
3250 void
3251 Editor::naturalize ()
3252 {
3253         RegionSelection rs;
3254
3255         get_regions_for_action (rs);
3256
3257         if (rs.empty()) {
3258                 return;
3259         }
3260
3261         begin_reversible_command (_("naturalize"));
3262         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3263                 XMLNode &before = (*i)->region()->get_state();
3264                 (*i)->region()->move_to_natural_position (this);
3265                 XMLNode &after = (*i)->region()->get_state();
3266                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3267         }
3268         commit_reversible_command ();
3269 }
3270
3271 void
3272 Editor::align (RegionPoint what)
3273 {
3274         RegionSelection rs;
3275
3276         get_regions_for_action (rs);
3277         nframes64_t where = get_preferred_edit_position();
3278
3279         if (!rs.empty()) {
3280                 align_selection (what, where, rs);
3281         } else {
3282
3283                 RegionSelection rs;
3284                 get_regions_at (rs, where, selection->tracks);
3285                 align_selection (what, where, rs);
3286         }
3287 }
3288
3289 void
3290 Editor::align_relative (RegionPoint what)
3291 {
3292         nframes64_t where = get_preferred_edit_position();
3293         RegionSelection rs;
3294
3295         get_regions_for_action (rs);
3296
3297         if (!rs.empty()) {
3298                 align_selection_relative (what, where, rs);
3299         }
3300 }
3301
3302 struct RegionSortByTime {
3303     bool operator() (const AudioRegionView* a, const AudioRegionView* b) {
3304             return a->region()->position() < b->region()->position();
3305     }
3306 };
3307
3308 void
3309 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3310 {
3311         if (rs.empty()) {
3312                 return;
3313         }
3314
3315         nframes64_t distance = 0;
3316         nframes64_t pos = 0;
3317         int dir = 1;
3318
3319         list<RegionView*> sorted;
3320         rs.by_position (sorted);
3321
3322         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3323
3324         switch (point) {
3325         case Start:
3326                 pos = position;
3327                 if (position > r->position()) {
3328                         distance = position - r->position();
3329                 } else {
3330                         distance = r->position() - position;
3331                         dir = -1;
3332                 }
3333                 break;
3334
3335         case End:
3336                 if (position > r->last_frame()) {
3337                         distance = position - r->last_frame();
3338                         pos = r->position() + distance;
3339                 } else {
3340                         distance = r->last_frame() - position;
3341                         pos = r->position() - distance;
3342                         dir = -1;
3343                 }
3344                 break;
3345
3346         case SyncPoint:
3347                 pos = r->adjust_to_sync (position);
3348                 if (pos > r->position()) {
3349                         distance = pos - r->position();
3350                 } else {
3351                         distance = r->position() - pos;
3352                         dir = -1;
3353                 }
3354                 break;
3355         }
3356
3357         if (pos == r->position()) {
3358                 return;
3359         }
3360
3361         begin_reversible_command (_("align selection (relative)"));
3362
3363         /* move first one specially */
3364
3365         XMLNode &before = r->playlist()->get_state();
3366         r->set_position (pos, this);
3367         XMLNode &after = r->playlist()->get_state();
3368         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3369
3370         /* move rest by the same amount */
3371
3372         sorted.pop_front();
3373
3374         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3375
3376                 boost::shared_ptr<Region> region ((*i)->region());
3377
3378                 XMLNode &before = region->playlist()->get_state();
3379
3380                 if (dir > 0) {
3381                         region->set_position (region->position() + distance, this);
3382                 } else {
3383                         region->set_position (region->position() - distance, this);
3384                 }
3385
3386                 XMLNode &after = region->playlist()->get_state();
3387                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3388
3389         }
3390
3391         commit_reversible_command ();
3392 }
3393
3394 void
3395 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3396 {
3397         if (rs.empty()) {
3398                 return;
3399         }
3400
3401         begin_reversible_command (_("align selection"));
3402
3403         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3404                 align_region_internal ((*i)->region(), point, position);
3405         }
3406
3407         commit_reversible_command ();
3408 }
3409
3410 void
3411 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3412 {
3413         begin_reversible_command (_("align region"));
3414         align_region_internal (region, point, position);
3415         commit_reversible_command ();
3416 }
3417
3418 void
3419 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3420 {
3421         XMLNode &before = region->playlist()->get_state();
3422
3423         switch (point) {
3424         case SyncPoint:
3425                 region->set_position (region->adjust_to_sync (position), this);
3426                 break;
3427
3428         case End:
3429                 if (position > region->length()) {
3430                         region->set_position (position - region->length(), this);
3431                 }
3432                 break;
3433
3434         case Start:
3435                 region->set_position (position, this);
3436                 break;
3437         }
3438
3439         XMLNode &after = region->playlist()->get_state();
3440         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3441 }
3442
3443 void
3444 Editor::trim_region_to_loop ()
3445 {
3446         Location* loc = session->locations()->auto_loop_location();
3447         if (!loc) {
3448                 return;
3449         }
3450         trim_region_to_location (*loc, _("trim to loop"));
3451 }
3452
3453 void
3454 Editor::trim_region_to_punch ()
3455 {
3456         Location* loc = session->locations()->auto_punch_location();
3457         if (!loc) {
3458                 return;
3459         }
3460         trim_region_to_location (*loc, _("trim to punch"));
3461 }
3462
3463 void
3464 Editor::trim_region_to_location (const Location& loc, const char* str)
3465 {
3466         RegionSelection rs;
3467
3468         get_regions_for_action (rs);
3469
3470         begin_reversible_command (str);
3471
3472         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3473                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3474
3475                 if (!arv) {
3476                         continue;
3477                 }
3478
3479                 /* require region to span proposed trim */
3480
3481                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3482                 case OverlapInternal:
3483                         break;
3484                 default:
3485                         continue;
3486                 }
3487
3488                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3489
3490                 if (!atav) {
3491                         return;
3492                 }
3493
3494                 float speed = 1.0;
3495                 nframes64_t start;
3496                 nframes64_t end;
3497
3498                 if (atav->get_diskstream() != 0) {
3499                         speed = atav->get_diskstream()->speed();
3500                 }
3501
3502                 start = session_frame_to_track_frame (loc.start(), speed);
3503                 end = session_frame_to_track_frame (loc.end(), speed);
3504
3505                 XMLNode &before = arv->region()->playlist()->get_state();
3506                 arv->region()->trim_to (start, (end - start), this);
3507                 XMLNode &after = arv->region()->playlist()->get_state();
3508                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3509         }
3510
3511         commit_reversible_command ();
3512 }
3513
3514 void
3515 Editor::trim_region_to_edit_point ()
3516 {
3517         RegionSelection rs;
3518
3519         get_regions_for_action (rs);
3520
3521         nframes64_t where = get_preferred_edit_position();
3522
3523         begin_reversible_command (_("trim region start to edit point"));
3524
3525         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3526                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3527
3528                 if (!arv) {
3529                         continue;
3530                 }
3531
3532                 /* require region to cover trim */
3533
3534                 if (!arv->region()->covers (where)) {
3535                         continue;
3536                 }
3537
3538                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3539
3540                 if (!atav) {
3541                         return;
3542                 }
3543
3544                 float speed = 1.0;
3545
3546                 if (atav->get_diskstream() != 0) {
3547                         speed = atav->get_diskstream()->speed();
3548                 }
3549
3550                 XMLNode &before = arv->region()->playlist()->get_state();
3551                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3552                 XMLNode &after = arv->region()->playlist()->get_state();
3553                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3554         }
3555
3556         commit_reversible_command ();
3557 }
3558
3559 void
3560 Editor::trim_region_from_edit_point ()
3561 {
3562         RegionSelection rs;
3563
3564         get_regions_for_action (rs);
3565
3566         nframes64_t where = get_preferred_edit_position();
3567
3568         begin_reversible_command (_("trim region end to edit point"));
3569
3570         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3571                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3572
3573                 if (!arv) {
3574                         continue;
3575                 }
3576
3577                 /* require region to cover trim */
3578
3579                 if (!arv->region()->covers (where)) {
3580                         continue;
3581                 }
3582
3583                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3584
3585                 if (!atav) {
3586                         return;
3587                 }
3588
3589                 float speed = 1.0;
3590
3591                 if (atav->get_diskstream() != 0) {
3592                         speed = atav->get_diskstream()->speed();
3593                 }
3594
3595                 XMLNode &before = arv->region()->playlist()->get_state();
3596                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3597                 XMLNode &after = arv->region()->playlist()->get_state();
3598                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3599         }
3600
3601         commit_reversible_command ();
3602 }
3603
3604 void
3605 Editor::unfreeze_route ()
3606 {
3607         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3608                 return;
3609         }
3610
3611         clicked_audio_trackview->audio_track()->unfreeze ();
3612 }
3613
3614 void*
3615 Editor::_freeze_thread (void* arg)
3616 {
3617         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3618         return static_cast<Editor*>(arg)->freeze_thread ();
3619 }
3620
3621 void*
3622 Editor::freeze_thread ()
3623 {
3624         clicked_audio_trackview->audio_track()->freeze (*current_interthread_info);
3625         return 0;
3626 }
3627
3628 gint
3629 Editor::freeze_progress_timeout (void *arg)
3630 {
3631         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3632         return !(current_interthread_info->done || current_interthread_info->cancel);
3633 }
3634
3635 void
3636 Editor::freeze_route ()
3637 {
3638         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3639                 return;
3640         }
3641
3642         InterThreadInfo itt;
3643
3644         if (interthread_progress_window == 0) {
3645                 build_interthread_progress_window ();
3646         }
3647
3648         WindowTitle title(Glib::get_application_name());
3649         title += _("Freeze");
3650         interthread_progress_window->set_title (title.get_string());
3651         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3652         interthread_progress_window->show_all ();
3653         interthread_progress_bar.set_fraction (0.0f);
3654         interthread_progress_label.set_text ("");
3655         interthread_cancel_label.set_text (_("Cancel Freeze"));
3656         current_interthread_info = &itt;
3657
3658         interthread_progress_connection =
3659           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3660
3661         itt.done = false;
3662         itt.cancel = false;
3663         itt.progress = 0.0f;
3664
3665         pthread_attr_t attr;
3666         pthread_attr_init(&attr);
3667         pthread_attr_setstacksize(&attr, 500000);
3668
3669         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3670
3671         pthread_attr_destroy(&attr);
3672
3673         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3674
3675         while (!itt.done && !itt.cancel) {
3676                 gtk_main_iteration ();
3677         }
3678
3679         interthread_progress_connection.disconnect ();
3680         interthread_progress_window->hide_all ();
3681         current_interthread_info = 0;
3682         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3683 }
3684
3685 void
3686 Editor::bounce_range_selection (bool replace, bool enable_processing)
3687 {
3688         if (selection->time.empty()) {
3689                 return;
3690         }
3691
3692         TrackSelection views = selection->tracks;
3693
3694         nframes64_t start = selection->time[clicked_selection].start;
3695         nframes64_t end = selection->time[clicked_selection].end;
3696         nframes64_t cnt = end - start + 1;
3697
3698         begin_reversible_command (_("bounce range"));
3699
3700         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3701
3702                 AudioTimeAxisView* atv;
3703
3704                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) == 0) {
3705                         continue;
3706                 }
3707
3708                 boost::shared_ptr<Playlist> playlist;
3709
3710                 if ((playlist = atv->playlist()) == 0) {
3711                         return;
3712                 }
3713
3714                 InterThreadInfo itt;
3715
3716                 itt.done = false;
3717                 itt.cancel = false;
3718                 itt.progress = false;
3719
3720                 XMLNode &before = playlist->get_state();
3721                 boost::shared_ptr<Region> r = atv->audio_track()->bounce_range (start, start+cnt, itt, enable_processing);
3722
3723                 if (replace) {
3724                         list<AudioRange> ranges;
3725                         ranges.push_back (AudioRange (start, start+cnt, 0));
3726                         playlist->cut (ranges); // discard result
3727                         playlist->add_region (r, start);
3728                 }
3729
3730                 XMLNode &after = playlist->get_state();
3731                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3732         }
3733
3734         commit_reversible_command ();
3735 }
3736
3737 void
3738 Editor::cut ()
3739 {
3740         cut_copy (Cut);
3741 }
3742
3743 void
3744 Editor::copy ()
3745 {
3746         cut_copy (Copy);
3747 }
3748
3749 void
3750 Editor::cut_copy (CutCopyOp op)
3751 {
3752         /* only cancel selection if cut/copy is successful.*/
3753
3754         string opname;
3755
3756         switch (op) {
3757         case Cut:
3758                 opname = _("cut");
3759                 break;
3760         case Copy:
3761                 opname = _("copy");
3762                 break;
3763         case Clear:
3764                 opname = _("clear");
3765                 break;
3766         }
3767
3768         /* if we're deleting something, and the mouse is still pressed,
3769            the thing we started a drag for will be gone when we release
3770            the mouse button(s). avoid this. see part 2 at the end of
3771            this function.
3772         */
3773
3774         if (op == Cut || op == Clear) {
3775                 if (drag_info.item) {
3776                         drag_info.item->ungrab (0);
3777                         drag_info.item = 0;
3778                 }
3779         }
3780
3781         cut_buffer->clear ();
3782
3783         if (entered_marker) {
3784
3785                 /* cut/delete op while pointing at a marker */
3786
3787                 bool ignored;
3788                 Location* loc = find_location_from_marker (entered_marker, ignored);
3789
3790                 if (session && loc) {
3791                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3792                 }
3793
3794                 break_drag ();
3795
3796                 return;
3797         }
3798
3799         RegionSelection rs;
3800
3801         /* we only want to cut regions if some are selected */
3802
3803         if (!selection->regions.empty()) {
3804                 get_regions_for_action (rs);
3805         }
3806
3807         switch (current_mouse_mode()) {
3808         case MouseObject:
3809                 if (!rs.empty() || !selection->points.empty()) {
3810
3811                         begin_reversible_command (opname + _(" objects"));
3812
3813                         if (!rs.empty()) {
3814                                 cut_copy_regions (op, rs);
3815
3816                                 if (op == Cut) {
3817                                         selection->clear_regions ();
3818                                 }
3819                         }
3820
3821                         if (!selection->points.empty()) {
3822                                 cut_copy_points (op);
3823
3824                                 if (op == Cut) {
3825                                         selection->clear_points ();
3826                                 }
3827                         }
3828
3829                         commit_reversible_command ();
3830                         break; // terminate case statement here
3831                 }
3832                 if (!selection->time.empty()) {
3833                         /* don't cause suprises */
3834                         break;
3835                 }
3836                 // fall thru if there was nothing selected
3837
3838         case MouseRange:
3839                 if (selection->time.empty()) {
3840                         nframes64_t start, end;
3841                         if (!get_edit_op_range (start, end)) {
3842                                 return;
3843                         }
3844                         selection->set ((TimeAxisView*) 0, start, end);
3845                 }
3846
3847                 begin_reversible_command (opname + _(" range"));
3848                 cut_copy_ranges (op);
3849                 commit_reversible_command ();
3850
3851                 if (op == Cut) {
3852                         selection->clear_time ();
3853                 }
3854
3855                 break;
3856
3857         default:
3858                 break;
3859         }
3860
3861
3862         if (op == Cut || op == Clear) {
3863                 break_drag ();
3864         }
3865 }
3866
3867 void
3868 Editor::cut_copy_points (CutCopyOp op)
3869 {
3870         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3871
3872                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3873
3874                 if (atv) {
3875                         atv->cut_copy_clear_objects (selection->points, op);
3876                 }
3877         }
3878 }
3879
3880 struct PlaylistState {
3881     boost::shared_ptr<Playlist> playlist;
3882     XMLNode*  before;
3883 };
3884
3885 struct lt_playlist {
3886     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3887             return a.playlist < b.playlist;
3888     }
3889 };
3890
3891 struct PlaylistMapping {
3892     TimeAxisView* tv;
3893     boost::shared_ptr<AudioPlaylist> pl;
3894
3895     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3896 };
3897
3898 void
3899 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3900 {
3901         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3902            a map when we want ordered access to both elements. i think.
3903         */
3904
3905         vector<PlaylistMapping> pmap;
3906
3907         nframes64_t first_position = max_frames;
3908
3909         set<PlaylistState, lt_playlist> freezelist;
3910         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3911
3912         /* get ordering correct before we cut/copy */
3913
3914         rs.sort_by_position_and_track ();
3915
3916         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3917
3918                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
3919
3920                 if (op == Cut || op == Clear) {
3921                         boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3922
3923                         if (pl) {
3924
3925                                 PlaylistState before;
3926                                 before.playlist = pl;
3927                                 before.before = &pl->get_state();
3928
3929                                 insert_result = freezelist.insert (before);
3930
3931                                 if (insert_result.second) {
3932                                         pl->freeze ();
3933                                 }
3934                         }
3935                 }
3936
3937                 TimeAxisView* tv = &(*x)->get_trackview();
3938                 vector<PlaylistMapping>::iterator z;
3939
3940                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3941                         if ((*z).tv == tv) {
3942                                 break;
3943                         }
3944                 }
3945
3946                 if (z == pmap.end()) {
3947                         pmap.push_back (PlaylistMapping (tv));
3948                 }
3949         }
3950
3951         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3952
3953                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3954
3955                 if (!pl) {
3956                         /* impossible, but this handles it for the future */
3957                         continue;
3958                 }
3959
3960                 TimeAxisView& tv = (*x)->get_trackview();
3961                 boost::shared_ptr<AudioPlaylist> npl;
3962                 RegionSelection::iterator tmp;
3963
3964                 tmp = x;
3965                 ++tmp;
3966
3967                 vector<PlaylistMapping>::iterator z;
3968
3969                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3970                         if ((*z).tv == &tv) {
3971                                 break;
3972                         }
3973                 }
3974
3975                 assert (z != pmap.end());
3976
3977                 if (!(*z).pl) {
3978                         npl = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (*session, "cutlist", true));
3979                         npl->freeze();
3980                         (*z).pl = npl;
3981                 } else {
3982                         npl = (*z).pl;
3983                 }
3984
3985                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>((*x)->region());
3986                 boost::shared_ptr<Region> _xx;
3987
3988                 switch (op) {
3989                 case Cut:
3990                         if (!ar) break;
3991
3992                         _xx = RegionFactory::create ((*x)->region());
3993                         npl->add_region (_xx, (*x)->region()->position() - first_position);
3994                         pl->remove_region (((*x)->region()));
3995                         break;
3996
3997                 case Copy:
3998                         if (!ar) break;
3999
4000                         /* copy region before adding, so we're not putting same object into two different playlists */
4001                         npl->add_region (RegionFactory::create ((*x)->region()), (*x)->region()->position() - first_position);
4002                         break;
4003
4004                 case Clear:
4005                         pl->remove_region (((*x)->region()));
4006                         break;
4007                 }
4008
4009                 x = tmp;
4010         }
4011
4012         list<boost::shared_ptr<Playlist> > foo;
4013
4014         /* the pmap is in the same order as the tracks in which selected regions occured */
4015
4016         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4017                 (*i).pl->thaw();
4018                 foo.push_back ((*i).pl);
4019         }
4020
4021
4022         if (!foo.empty()) {
4023                 cut_buffer->set (foo);
4024         }
4025
4026         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4027                 (*pl).playlist->thaw ();
4028                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4029         }
4030 }
4031
4032 void
4033 Editor::cut_copy_ranges (CutCopyOp op)
4034 {
4035         TrackSelection* ts;
4036         TrackSelection entered;
4037
4038         if (selection->tracks.empty()) {
4039                 if (!entered_track) {
4040                         return;
4041                 }
4042                 entered.push_back (entered_track);
4043                 ts = &entered;
4044         } else {
4045                 ts = &selection->tracks;
4046         }
4047
4048         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4049                 (*i)->cut_copy_clear (*selection, op);
4050         }
4051 }
4052
4053 void
4054 Editor::paste (float times)
4055 {
4056         paste_internal (get_preferred_edit_position(), times);
4057 }
4058
4059 void
4060 Editor::mouse_paste ()
4061 {
4062         nframes64_t where;
4063         bool ignored;
4064
4065         if (!mouse_frame (where, ignored)) {
4066                 return;
4067         }
4068
4069         snap_to (where);
4070         paste_internal (where, 1);
4071 }
4072
4073 void
4074 Editor::paste_internal (nframes64_t position, float times)
4075 {
4076         bool commit = false;
4077
4078         if (cut_buffer->empty()) {
4079                 return;
4080         }
4081
4082         if (position == max_frames) {
4083                 position = get_preferred_edit_position();
4084         }
4085
4086         begin_reversible_command (_("paste"));
4087
4088         TrackSelection ts;
4089         TrackSelection::iterator i;
4090         size_t nth;
4091
4092         /* get everything in the correct order */
4093
4094
4095         if (!selection->tracks.empty()) {
4096                 sort_track_selection ();
4097                 ts = selection->tracks;
4098         } else if (entered_track) {
4099                 ts.push_back (entered_track);
4100         }
4101
4102         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4103
4104                 /* undo/redo is handled by individual tracks */
4105
4106                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
4107                         commit = true;
4108                 }
4109         }
4110
4111         if (commit) {
4112                 commit_reversible_command ();
4113         }
4114 }
4115
4116 void
4117 Editor::paste_named_selection (float times)
4118 {
4119         TrackSelection::iterator t;
4120
4121         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4122
4123         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4124                 return;
4125         }
4126
4127         TreeModel::iterator i = selected->get_selected();
4128         NamedSelection* ns = (*i)[named_selection_columns.selection];
4129
4130         list<boost::shared_ptr<Playlist> >::iterator chunk;
4131         list<boost::shared_ptr<Playlist> >::iterator tmp;
4132
4133         chunk = ns->playlists.begin();
4134
4135         begin_reversible_command (_("paste chunk"));
4136
4137         sort_track_selection ();
4138
4139         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4140
4141                 AudioTimeAxisView* atv;
4142                 boost::shared_ptr<Playlist> pl;
4143                 boost::shared_ptr<AudioPlaylist> apl;
4144
4145                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*t)) == 0) {
4146                         continue;
4147                 }
4148
4149                 if ((pl = atv->playlist()) == 0) {
4150                         continue;
4151                 }
4152
4153                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4154                         continue;
4155                 }
4156
4157                 tmp = chunk;
4158                 ++tmp;
4159
4160                 XMLNode &before = apl->get_state();
4161                 apl->paste (*chunk, get_preferred_edit_position(), times);
4162                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4163
4164                 if (tmp != ns->playlists.end()) {
4165                         chunk = tmp;
4166                 }
4167         }
4168
4169         commit_reversible_command();
4170 }
4171
4172 void
4173 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4174 {
4175         boost::shared_ptr<Playlist> playlist;
4176         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4177         RegionSelection foo;
4178
4179         begin_reversible_command (_("duplicate region"));
4180
4181         selection->clear_regions ();
4182
4183         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4184
4185                 boost::shared_ptr<Region> r ((*i)->region());
4186
4187                 TimeAxisView& tv = (*i)->get_time_axis_view();
4188                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (&tv);
4189
4190                 latest_regionviews.clear ();
4191                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4192
4193                 playlist = (*i)->region()->playlist();
4194                 XMLNode &before = playlist->get_state();
4195                 playlist->duplicate (r, r->last_frame() + 1, times);
4196                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4197
4198                 c.disconnect ();
4199
4200                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4201         }
4202
4203         commit_reversible_command ();
4204
4205         if (!foo.empty()) {
4206                 selection->set (foo);
4207         }
4208 }
4209
4210 void
4211 Editor::duplicate_selection (float times)
4212 {
4213         if (selection->time.empty() || selection->tracks.empty()) {
4214                 return;
4215         }
4216
4217         boost::shared_ptr<Playlist> playlist;
4218         vector<boost::shared_ptr<AudioRegion> > new_regions;
4219         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
4220
4221         create_region_from_selection (new_regions);
4222
4223         if (new_regions.empty()) {
4224                 return;
4225         }
4226
4227         begin_reversible_command (_("duplicate selection"));
4228
4229         ri = new_regions.begin();
4230
4231         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4232                 if ((playlist = (*i)->playlist()) == 0) {
4233                         continue;
4234                 }
4235                 XMLNode &before = playlist->get_state();
4236                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4237                 XMLNode &after = playlist->get_state();
4238                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4239
4240                 ++ri;
4241                 if (ri == new_regions.end()) {
4242                         --ri;
4243                 }
4244         }
4245
4246         commit_reversible_command ();
4247 }
4248
4249 void
4250 Editor::reset_point_selection ()
4251 {
4252         /* reset all selected points to the relevant default value */
4253
4254         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4255
4256                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4257
4258                 if (atv) {
4259                         atv->reset_objects (selection->points);
4260                 }
4261         }
4262 }
4263
4264 void
4265 Editor::center_playhead ()
4266 {
4267         float page = canvas_width * frames_per_unit;
4268         center_screen_internal (playhead_cursor->current_frame, page);
4269 }
4270
4271 void
4272 Editor::center_edit_point ()
4273 {
4274         float page = canvas_width * frames_per_unit;
4275         center_screen_internal (get_preferred_edit_position(), page);
4276 }
4277
4278 void
4279 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4280 {
4281         begin_reversible_command (_("clear playlist"));
4282         XMLNode &before = playlist->get_state();
4283         playlist->clear ();
4284         XMLNode &after = playlist->get_state();
4285         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4286         commit_reversible_command ();
4287 }
4288
4289 void
4290 Editor::nudge_track (bool use_edit, bool forwards)
4291 {
4292         boost::shared_ptr<Playlist> playlist;
4293         nframes64_t distance;
4294         nframes64_t next_distance;
4295         nframes64_t start;
4296
4297         if (use_edit) {
4298                 start = get_preferred_edit_position();
4299         } else {
4300                 start = 0;
4301         }
4302
4303         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4304                 return;
4305         }
4306
4307         if (selection->tracks.empty()) {
4308                 return;
4309         }
4310
4311         begin_reversible_command (_("nudge track"));
4312
4313         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4314
4315                 if ((playlist = (*i)->playlist()) == 0) {
4316                         continue;
4317                 }
4318
4319                 XMLNode &before = playlist->get_state();
4320                 playlist->nudge_after (start, distance, forwards);
4321                 XMLNode &after = playlist->get_state();
4322                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4323         }
4324
4325         commit_reversible_command ();
4326 }
4327
4328 void
4329 Editor::remove_last_capture ()
4330 {
4331         vector<string> choices;
4332         string prompt;
4333
4334         if (!session) {
4335                 return;
4336         }
4337
4338         if (Config->get_verify_remove_last_capture()) {
4339                 prompt  = _("Do you really want to destroy the last capture?"
4340                             "\n(This is destructive and cannot be undone)");
4341
4342                 choices.push_back (_("No, do nothing."));
4343                 choices.push_back (_("Yes, destroy it."));
4344
4345                 Gtkmm2ext::Choice prompter (prompt, choices);
4346
4347                 if (prompter.run () == 1) {
4348                         session->remove_last_capture ();
4349                 }
4350
4351         } else {
4352                 session->remove_last_capture();
4353         }
4354 }
4355
4356 void
4357 Editor::normalize_region ()
4358 {
4359         RegionSelection rs;
4360
4361         get_regions_for_action (rs);
4362
4363         if (!session) {
4364                 return;
4365         }
4366
4367         if (rs.empty()) {
4368                 return;
4369         }
4370
4371         begin_reversible_command (_("normalize"));
4372
4373         track_canvas->get_window()->set_cursor (*wait_cursor);
4374         gdk_flush ();
4375
4376         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4377                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4378                 if (!arv)
4379                         continue;
4380                 XMLNode &before = arv->region()->get_state();
4381                 arv->audio_region()->normalize_to (0.0f);
4382                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4383         }
4384
4385         commit_reversible_command ();
4386         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4387 }
4388
4389
4390 void
4391 Editor::denormalize_region ()
4392 {
4393         if (!session) {
4394                 return;
4395         }
4396
4397         RegionSelection rs;
4398
4399         get_regions_for_action (rs);
4400
4401         if (rs.empty()) {
4402                 return;
4403         }
4404
4405         begin_reversible_command ("denormalize");
4406
4407         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4408                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4409                 if (!arv)
4410                         continue;
4411                 XMLNode &before = arv->region()->get_state();
4412                 arv->audio_region()->set_scale_amplitude (1.0f);
4413                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4414         }
4415
4416         commit_reversible_command ();
4417 }
4418
4419 void
4420 Editor::adjust_region_scale_amplitude (bool up)
4421 {
4422         if (!session) {
4423                 return;
4424         }
4425
4426         RegionSelection rs;
4427
4428         get_regions_for_action (rs);
4429
4430         if (rs.empty()) {
4431                 return;
4432         }
4433
4434         begin_reversible_command ("denormalize");
4435
4436         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4437                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4438                 if (!arv)
4439                         continue;
4440                 XMLNode &before = arv->region()->get_state();
4441
4442                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4443
4444                 if (up) {
4445                         fraction += 0.05;
4446                         fraction = min (fraction, 1.0);
4447                 } else {
4448                         fraction -= 0.05;
4449                         fraction = max (fraction, 0.0);
4450                 }
4451
4452                 if (!up && fraction <= 0) {
4453                         continue;
4454                 }
4455
4456                 fraction = slider_position_to_gain (fraction);
4457                 fraction = coefficient_to_dB (fraction);
4458                 fraction = dB_to_coefficient (fraction);
4459
4460                 if (up && fraction >= 2.0) {
4461                         continue;
4462                 }
4463
4464                 arv->audio_region()->set_scale_amplitude (fraction);
4465                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4466         }
4467
4468         commit_reversible_command ();
4469 }
4470
4471
4472 void
4473 Editor::reverse_region ()
4474 {
4475         if (!session) {
4476                 return;
4477         }
4478
4479         Reverse rev (*session);
4480         apply_filter (rev, _("reverse regions"));
4481 }
4482
4483 void
4484 Editor::apply_filter (AudioFilter& filter, string command)
4485 {
4486         RegionSelection rs;
4487
4488         get_regions_for_action (rs);
4489
4490         if (rs.empty()) {
4491                 return;
4492         }
4493
4494         begin_reversible_command (command);
4495
4496         track_canvas->get_window()->set_cursor (*wait_cursor);
4497         gdk_flush ();
4498
4499         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4500                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4501                 if (!arv)
4502                         continue;
4503
4504                 boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4505
4506                 RegionSelection::iterator tmp;
4507
4508                 tmp = r;
4509                 ++tmp;
4510
4511                 if (arv->audio_region()->apply (filter) == 0) {
4512
4513                         XMLNode &before = playlist->get_state();
4514                         playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4515                         XMLNode &after = playlist->get_state();
4516                         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4517                 } else {
4518                         goto out;
4519                 }
4520
4521                 r = tmp;
4522         }
4523
4524         commit_reversible_command ();
4525         rs.clear ();
4526
4527   out:
4528         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4529 }
4530
4531 void
4532 Editor::region_selection_op (void (Region::*pmf)(void))
4533 {
4534         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4535                 Region* region = (*i)->region().get();
4536                 (region->*pmf)();
4537         }
4538 }
4539
4540
4541 void
4542 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4543 {
4544         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4545                 Region* region = (*i)->region().get();
4546                 (region->*pmf)(arg);
4547         }
4548 }
4549
4550 void
4551 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4552 {
4553         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4554                 Region* region = (*i)->region().get();
4555                 (region->*pmf)(yn);
4556         }
4557 }
4558
4559 void
4560 Editor::external_edit_region ()
4561 {
4562         // XXX shouldn't this use get_regions_for_action(rs) too?
4563         if (!clicked_regionview) {
4564                 return;
4565         }
4566
4567         /* more to come */
4568 }
4569
4570 void
4571 Editor::brush (nframes64_t pos)
4572 {
4573         RegionSelection sel;
4574         RegionSelection rs;
4575
4576         get_regions_for_action (rs);
4577
4578         snap_to (pos);
4579
4580         if (rs.empty()) {
4581                 return;
4582         }
4583
4584         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4585                 mouse_brush_insert_region ((*i), pos);
4586         }
4587 }
4588
4589 void
4590 Editor::reset_region_gain_envelopes ()
4591 {
4592         RegionSelection rs;
4593
4594         get_regions_for_action (rs);
4595
4596         if (!session || rs.empty()) {
4597                 return;
4598         }
4599
4600         session->begin_reversible_command (_("reset region gain"));
4601
4602         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4603                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4604                 if (arv) {
4605                         AutomationList& alist (arv->audio_region()->envelope());
4606                         XMLNode& before (alist.get_state());
4607
4608                         arv->audio_region()->set_default_envelope ();
4609                         session->add_command (new MementoCommand<AutomationList>(arv->audio_region()->envelope(), &before, &alist.get_state()));
4610                 }
4611         }
4612
4613         session->commit_reversible_command ();
4614 }
4615
4616 void
4617 Editor::toggle_gain_envelope_visibility ()
4618 {
4619         RegionSelection rs;
4620
4621         get_regions_for_action (rs);
4622
4623         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4624                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4625                 if (arv) {
4626                         arv->set_envelope_visible (!arv->envelope_visible());
4627                 }
4628         }
4629 }
4630
4631 void
4632 Editor::toggle_gain_envelope_active ()
4633 {
4634         RegionSelection rs;
4635
4636         get_regions_for_action (rs);
4637
4638         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4639                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4640                 if (arv) {
4641                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4642                 }
4643         }
4644 }
4645
4646 void
4647 Editor::toggle_region_lock ()
4648 {
4649         RegionSelection rs;
4650
4651         get_regions_for_action (rs);
4652
4653         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4654                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4655                 if (arv) {
4656                         arv->audio_region()->set_locked (!arv->audio_region()->locked());
4657                 }
4658         }
4659 }
4660
4661 void
4662 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4663 {
4664         RegionSelection rs;
4665
4666         get_regions_for_action (rs);
4667
4668         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4669                 (*i)->region()->set_position_lock_style (ps);
4670         }
4671 }
4672
4673
4674 void
4675 Editor::toggle_region_mute ()
4676 {
4677         RegionSelection rs;
4678
4679         get_regions_for_action (rs);
4680
4681         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4682                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4683                 if (arv) {
4684                         arv->audio_region()->set_muted (!arv->audio_region()->muted());
4685                 }
4686         }
4687 }
4688
4689 void
4690 Editor::toggle_region_opaque ()
4691 {
4692         RegionSelection rs;
4693
4694         get_regions_for_action (rs);
4695
4696         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4697                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4698                 if (arv) {
4699                         arv->audio_region()->set_opaque (!arv->audio_region()->opaque());
4700                 }
4701         }
4702 }
4703
4704 void
4705 Editor::toggle_record_enable ()
4706 {
4707         bool new_state = false;
4708         bool first = true;
4709         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4710                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
4711                 if (!rtav)
4712                         continue;
4713                 if (!rtav->is_track())
4714                         continue;
4715
4716                 if (first) {
4717                         new_state = !rtav->track()->record_enabled();
4718                         first = false;
4719                 }
4720
4721                 rtav->track()->set_record_enable(new_state, this);
4722         }
4723 }
4724
4725
4726 void
4727 Editor::set_fade_length (bool in)
4728 {
4729         RegionSelection rs;
4730
4731         get_regions_for_action (rs);
4732
4733         /* we need a region to measure the offset from the start */
4734
4735         RegionView* rv;
4736
4737         if (!rs.empty()) {
4738                 rv = rs.front();
4739         } else if (entered_regionview) {
4740                 rv = entered_regionview;
4741         } else {
4742                 return;
4743         }
4744
4745         nframes64_t pos = get_preferred_edit_position();
4746         nframes64_t len;
4747         char* cmd;
4748
4749         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4750                 /* edit point is outside the relevant region */
4751                 return;
4752         }
4753
4754         if (in) {
4755                 if (pos <= rv->region()->position()) {
4756                         /* can't do it */
4757                         return;
4758                 }
4759                 len = pos - rv->region()->position();
4760                 cmd = _("set fade in length");
4761         } else {
4762                 if (pos >= rv->region()->last_frame()) {
4763                         /* can't do it */
4764                         return;
4765                 }
4766                 len = rv->region()->last_frame() - pos;
4767                 cmd = _("set fade out length");
4768         }
4769
4770         begin_reversible_command (cmd);
4771
4772         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4773                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4774
4775                 if (!tmp) {
4776                         return;
4777                 }
4778
4779                 AutomationList* alist;
4780                 if (in) {
4781                         alist = &tmp->audio_region()->fade_in();
4782                 } else {
4783                         alist = &tmp->audio_region()->fade_out();
4784                 }
4785
4786                 XMLNode &before = alist->get_state();
4787
4788                 if (in) {
4789                         tmp->audio_region()->set_fade_in_length (len);
4790                         tmp->audio_region()->set_fade_in_active (true);
4791                 } else {
4792                         tmp->audio_region()->set_fade_out_length (len);
4793                         tmp->audio_region()->set_fade_out_active (true);
4794                 }
4795
4796                 XMLNode &after = alist->get_state();
4797                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4798         }
4799
4800         commit_reversible_command ();
4801 }
4802
4803
4804 void
4805 Editor::toggle_fade_active (bool in)
4806 {
4807         RegionSelection rs;
4808
4809         get_regions_for_action (rs);
4810
4811         if (rs.empty()) {
4812                 return;
4813         }
4814
4815         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4816         bool have_switch = false;
4817         bool yn = false;
4818
4819         begin_reversible_command (cmd);
4820
4821         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4822                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4823
4824                 if (!tmp) {
4825                         return;
4826                 }
4827
4828                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4829
4830                 /* make the behaviour consistent across all regions */
4831
4832                 if (!have_switch) {
4833                         if (in) {
4834                                 yn = region->fade_in_active();
4835                         } else {
4836                                 yn = region->fade_out_active();
4837                         }
4838                         have_switch = true;
4839                 }
4840
4841                 XMLNode &before = region->get_state();
4842                 if (in) {
4843                         region->set_fade_in_active (!yn);
4844                 } else {
4845                         region->set_fade_out_active (!yn);
4846                 }
4847                 XMLNode &after = region->get_state();
4848                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4849         }
4850
4851         commit_reversible_command ();
4852 }
4853
4854 void
4855 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4856 {
4857         RegionSelection rs;
4858
4859         get_regions_for_action (rs);
4860
4861         if (rs.empty()) {
4862                 return;
4863         }
4864
4865         begin_reversible_command (_("set fade in shape"));
4866
4867         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4868                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4869
4870                 if (!tmp) {
4871                         return;
4872                 }
4873
4874                 AutomationList& alist = tmp->audio_region()->fade_in();
4875                 XMLNode &before = alist.get_state();
4876
4877                 tmp->audio_region()->set_fade_in_shape (shape);
4878
4879                 XMLNode &after = alist.get_state();
4880                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4881         }
4882
4883         commit_reversible_command ();
4884
4885 }
4886
4887 void
4888 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4889 {
4890         RegionSelection rs;
4891
4892         get_regions_for_action (rs);
4893
4894         if (rs.empty()) {
4895                 return;
4896         }
4897
4898         begin_reversible_command (_("set fade out shape"));
4899
4900         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4901                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4902
4903                 if (!tmp) {
4904                         return;
4905                 }
4906
4907                 AutomationList& alist = tmp->audio_region()->fade_out();
4908                 XMLNode &before = alist.get_state();
4909
4910                 tmp->audio_region()->set_fade_out_shape (shape);
4911
4912                 XMLNode &after = alist.get_state();
4913                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4914         }
4915
4916         commit_reversible_command ();
4917 }
4918
4919 void
4920 Editor::set_fade_in_active (bool yn)
4921 {
4922         RegionSelection rs;
4923
4924         get_regions_for_action (rs);
4925
4926         if (rs.empty()) {
4927                 return;
4928         }
4929
4930         begin_reversible_command (_("set fade in active"));
4931
4932         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4933                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4934
4935                 if (!tmp) {
4936                         return;
4937                 }
4938
4939
4940                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4941
4942                 XMLNode &before = ar->get_state();
4943
4944                 ar->set_fade_in_active (yn);
4945
4946                 XMLNode &after = ar->get_state();
4947                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4948         }
4949
4950         commit_reversible_command ();
4951 }
4952
4953 void
4954 Editor::set_fade_out_active (bool yn)
4955 {
4956         RegionSelection rs;
4957
4958         get_regions_for_action (rs);
4959
4960         if (rs.empty()) {
4961                 return;
4962         }
4963
4964         begin_reversible_command (_("set fade out active"));
4965
4966         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4967                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4968
4969                 if (!tmp) {
4970                         return;
4971                 }
4972
4973                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4974
4975                 XMLNode &before = ar->get_state();
4976
4977                 ar->set_fade_out_active (yn);
4978
4979                 XMLNode &after = ar->get_state();
4980                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4981         }
4982
4983         commit_reversible_command ();
4984 }
4985
4986 void
4987 Editor::toggle_selected_region_fades (int dir)
4988 {
4989         RegionSelection rs;
4990         RegionSelection::iterator i;
4991         boost::shared_ptr<AudioRegion> ar;
4992         bool yn;
4993
4994         get_regions_for_action (rs);
4995
4996         if (rs.empty()) {
4997                 return;
4998         }
4999
5000         for (i = rs.begin(); i != rs.end(); ++i) {
5001                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5002                         if (dir == -1) {
5003                                 yn = ar->fade_out_active ();
5004                         } else {
5005                                 yn = ar->fade_in_active ();
5006                         }
5007                         break;
5008                 }
5009         }
5010
5011         if (i == rs.end()) {
5012                 return;
5013         }
5014
5015         /* XXX should this undo-able? */
5016
5017         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5018                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5019                         continue;
5020                 }
5021                 if (dir == 1 || dir == 0) {
5022                         ar->set_fade_in_active (!yn);
5023                 }
5024
5025                 if (dir == -1 || dir == 0) {
5026                         ar->set_fade_out_active (!yn);
5027                 }
5028         }
5029 }
5030
5031
5032 /** Update region fade visibility after its configuration has been changed */
5033 void
5034 Editor::update_region_fade_visibility ()
5035 {
5036         bool _fade_visibility = Config->get_show_region_fades ();
5037
5038         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5039                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5040                 if (v) {
5041                         if (_fade_visibility) {
5042                                 v->audio_view()->show_all_fades ();
5043                         } else {
5044                                 v->audio_view()->hide_all_fades ();
5045                         }
5046                 }
5047         }
5048 }
5049
5050 /** Update crossfade visibility after its configuration has been changed */
5051 void
5052 Editor::update_xfade_visibility ()
5053 {
5054         _xfade_visibility = Config->get_xfades_visible ();
5055
5056         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5057                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5058                 if (v) {
5059                         if (_xfade_visibility) {
5060                                 v->show_all_xfades ();
5061                         } else {
5062                                 v->hide_all_xfades ();
5063                         }
5064                 }
5065         }
5066 }
5067
5068 void
5069 Editor::set_edit_point ()
5070 {
5071         nframes64_t where;
5072         bool ignored;
5073
5074         if (!mouse_frame (where, ignored)) {
5075                 return;
5076         }
5077
5078         snap_to (where);
5079
5080         if (selection->markers.empty()) {
5081
5082                 mouse_add_new_marker (where);
5083
5084         } else {
5085                 bool ignored;
5086
5087                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5088
5089                 if (loc) {
5090                         loc->move_to (where);
5091                 }
5092         }
5093 }
5094
5095 void
5096 Editor::set_playhead_cursor ()
5097 {
5098         if (entered_marker) {
5099                 session->request_locate (entered_marker->position(), session->transport_rolling());
5100         } else {
5101                 nframes64_t where;
5102                 bool ignored;
5103
5104                 if (!mouse_frame (where, ignored)) {
5105                         return;
5106                 }
5107
5108                 snap_to (where);
5109
5110                 if (session) {
5111                         session->request_locate (where, session->transport_rolling());
5112                 }
5113         }
5114 }
5115
5116 void
5117 Editor::split ()
5118 {
5119         RegionSelection rs;
5120
5121         get_regions_for_action (rs);
5122
5123         nframes64_t where = get_preferred_edit_position();
5124
5125         if (rs.empty()) {
5126                 return;
5127         }
5128
5129         split_regions_at (where, rs);
5130 }
5131
5132 void
5133 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5134 {
5135         if (entered_track && mouse_mode == MouseObject) {
5136                 if (!selection->tracks.empty()) {
5137                         if (!selection->selected (entered_track)) {
5138                                 selection->add (entered_track);
5139                         }
5140                 } else {
5141                         /* there is no selection, but this operation requires/prefers selected objects */
5142
5143                         if (op_really_wants_one_track_if_none_are_selected) {
5144                                 selection->set (entered_track);
5145                         }
5146                 }
5147         }
5148 }
5149
5150 void
5151 Editor::trim_region_front ()
5152 {
5153         trim_region (true);
5154 }
5155
5156 void
5157 Editor::trim_region_back ()
5158 {
5159         trim_region (false);
5160 }
5161
5162 void
5163 Editor::trim_region (bool front)
5164 {
5165         nframes64_t where = get_preferred_edit_position();
5166         RegionSelection rs;
5167
5168         get_regions_for_action (rs);
5169
5170         if (rs.empty()) {
5171                 return;
5172         }
5173
5174         begin_reversible_command (front ? _("trim front") : _("trim back"));
5175
5176         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
5177                 if (!(*i)->region()->locked()) {
5178                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
5179                         XMLNode &before = pl->get_state();
5180                         if (front) {
5181                                 (*i)->region()->trim_front (where, this);
5182                         } else {
5183                                 (*i)->region()->trim_end (where, this);
5184                         }
5185                         XMLNode &after = pl->get_state();
5186                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
5187                 }
5188         }
5189
5190         commit_reversible_command ();
5191 }
5192
5193 struct EditorOrderRouteSorter {
5194     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5195             /* use of ">" forces the correct sort order */
5196             return a->order_key ("editor") < b->order_key ("editor");
5197     }
5198 };
5199
5200 void
5201 Editor::select_next_route()
5202 {
5203         if (selection->tracks.empty()) {
5204                 selection->set (track_views.front());
5205                 return;
5206         }
5207
5208         TimeAxisView* current = selection->tracks.front();
5209
5210         RouteUI *rui;
5211         do {
5212                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5213                         if (*i == current) {
5214                                 ++i;
5215                                 if (i != track_views.end()) {
5216                                         current = (*i);
5217                                 } else {
5218                                         current = (*(track_views.begin()));
5219                                         //selection->set (*(track_views.begin()));
5220                                 }
5221                                 break;
5222                         }
5223                 }
5224                 rui = dynamic_cast<RouteUI *>(current);
5225         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5226
5227         selection->set(current);
5228
5229         ensure_track_visible(current);
5230 }
5231
5232 void
5233 Editor::select_prev_route()
5234 {
5235         if (selection->tracks.empty()) {
5236                 selection->set (track_views.front());
5237                 return;
5238         }
5239
5240         TimeAxisView* current = selection->tracks.front();
5241
5242         RouteUI *rui;
5243         do {
5244                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5245                         if (*i == current) {
5246                                 ++i;
5247                                 if (i != track_views.rend()) {
5248                                         current = (*i);
5249                                 } else {
5250                                         current = *(track_views.rbegin());
5251                                 }
5252                                 break;
5253                         }
5254                 }
5255                 rui = dynamic_cast<RouteUI *>(current);
5256         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5257
5258         selection->set (current);
5259
5260         ensure_track_visible(current);
5261 }
5262
5263 void
5264 Editor::ensure_track_visible(TimeAxisView *track)
5265 {
5266         if (track->hidden())
5267                 return;
5268
5269         double current_view_min_y = vertical_adjustment.get_value();
5270         double current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5271
5272         double track_min_y = track->y_position;
5273         double track_max_y = track->y_position + (double)track->effective_height;
5274
5275         if (track_min_y >= current_view_min_y &&
5276             track_max_y <= current_view_max_y) {
5277                 return;
5278         }
5279
5280         double new_value;
5281
5282         if (track_min_y < current_view_min_y) {
5283                 // Track is above the current view
5284                 new_value = track_min_y;
5285         } else {
5286                 // Track is below the current view
5287                 new_value = track->y_position + (double)track->effective_height + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5288         }
5289
5290         vertical_adjustment.set_value(new_value);
5291 }
5292
5293 void
5294 Editor::set_loop_from_selection (bool play)
5295 {
5296         if (session == 0 || selection->time.empty()) {
5297                 return;
5298         }
5299
5300         nframes64_t start = selection->time[clicked_selection].start;
5301         nframes64_t end = selection->time[clicked_selection].end;
5302
5303         set_loop_range (start, end,  _("set loop range from selection"));
5304
5305         if (play) {
5306                 session->request_play_loop (true);
5307                 session->request_locate (start, true);
5308         }
5309 }
5310
5311 void
5312 Editor::set_loop_from_edit_range (bool play)
5313 {
5314         if (session == 0) {
5315                 return;
5316         }
5317
5318         nframes64_t start;
5319         nframes64_t end;
5320
5321         if (!get_edit_op_range (start, end)) {
5322                 return;
5323         }
5324
5325         set_loop_range (start, end,  _("set loop range from edit range"));
5326
5327         if (play) {
5328                 session->request_play_loop (true);
5329                 session->request_locate (start, true);
5330         }
5331 }
5332
5333 void
5334 Editor::set_loop_from_region (bool play)
5335 {
5336         nframes64_t start = max_frames;
5337         nframes64_t end = 0;
5338
5339         RegionSelection rs;
5340
5341         get_regions_for_action (rs);
5342
5343         if (rs.empty()) {
5344                 return;
5345         }
5346
5347         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5348                 if ((*i)->region()->position() < start) {
5349                         start = (*i)->region()->position();
5350                 }
5351                 if ((*i)->region()->last_frame() + 1 > end) {
5352                         end = (*i)->region()->last_frame() + 1;
5353                 }
5354         }
5355
5356         set_loop_range (start, end, _("set loop range from region"));
5357
5358         if (play) {
5359                 session->request_play_loop (true);
5360                 session->request_locate (start, true);
5361         }
5362 }
5363
5364 void
5365 Editor::set_punch_from_selection ()
5366 {
5367         if (session == 0 || selection->time.empty()) {
5368                 return;
5369         }
5370
5371         nframes64_t start = selection->time[clicked_selection].start;
5372         nframes64_t end = selection->time[clicked_selection].end;
5373
5374         set_punch_range (start, end,  _("set punch range from selection"));
5375 }
5376
5377 void
5378 Editor::set_punch_from_edit_range ()
5379 {
5380         if (session == 0) {
5381                 return;
5382         }
5383
5384         nframes64_t start;
5385         nframes64_t end;
5386
5387         if (!get_edit_op_range (start, end)) {
5388                 return;
5389         }
5390
5391         set_punch_range (start, end,  _("set punch range from edit range"));
5392 }
5393
5394 void
5395 Editor::set_punch_from_region ()
5396 {
5397         nframes64_t start = max_frames;
5398         nframes64_t end = 0;
5399
5400         RegionSelection rs;
5401
5402         get_regions_for_action (rs);
5403
5404         if (rs.empty()) {
5405                 return;
5406         }
5407
5408         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5409                 if ((*i)->region()->position() < start) {
5410                         start = (*i)->region()->position();
5411                 }
5412                 if ((*i)->region()->last_frame() + 1 > end) {
5413                         end = (*i)->region()->last_frame() + 1;
5414                 }
5415         }
5416
5417         set_punch_range (start, end, _("set punch range from region"));
5418 }
5419
5420 void
5421 Editor::pitch_shift_regions ()
5422 {
5423         RegionSelection rs;
5424
5425         get_regions_for_action (rs);
5426
5427         if (rs.empty()) {
5428                 return;
5429         }
5430
5431         pitch_shift (rs, 1.2);
5432 }
5433
5434 void
5435 Editor::use_region_as_bar ()
5436 {
5437         if (!session) {
5438                 return;
5439         }
5440
5441         RegionSelection rs;
5442
5443         get_regions_for_action (rs);
5444
5445         if (rs.empty()) {
5446                 return;
5447         }
5448
5449         RegionView* rv = rs.front();
5450
5451         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5452 }
5453
5454 void
5455 Editor::use_range_as_bar ()
5456 {
5457         nframes64_t start, end;
5458         if (get_edit_op_range (start, end)) {
5459                 define_one_bar (start, end);
5460         }
5461 }
5462
5463 void
5464 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5465 {
5466         nframes64_t length = end - start;
5467
5468         const Meter& m (session->tempo_map().meter_at (start));
5469
5470         /* length = 1 bar */
5471
5472         /* now we want frames per beat.
5473            we have frames per bar, and beats per bar, so ...
5474         */
5475
5476         double frames_per_beat = length / m.beats_per_bar();
5477
5478         /* beats per minute = */
5479
5480         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5481
5482         /* now decide whether to:
5483
5484             (a) set global tempo
5485             (b) add a new tempo marker
5486
5487         */
5488
5489         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5490
5491         bool do_global = false;
5492
5493         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5494
5495                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5496                    at the start, or create a new marker
5497                 */
5498
5499                 vector<string> options;
5500                 options.push_back (_("Cancel"));
5501                 options.push_back (_("Add new marker"));
5502                 options.push_back (_("Set global tempo"));
5503                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5504                           options);
5505                 c.set_default_response (2);
5506
5507                 switch (c.run()) {
5508                 case 0:
5509                         return;
5510
5511                 case 2:
5512                         do_global = true;
5513                         break;
5514
5515                 default:
5516                         do_global = false;
5517                 }
5518
5519         } else {
5520
5521                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5522                    if the marker is at the region starter, change it, otherwise add
5523                    a new tempo marker
5524                 */
5525         }
5526
5527         begin_reversible_command (_("set tempo from region"));
5528         XMLNode& before (session->tempo_map().get_state());
5529
5530         if (do_global) {
5531                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5532         } else if (t.frame() == start) {
5533                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5534         } else {
5535                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5536         }
5537
5538         XMLNode& after (session->tempo_map().get_state());
5539
5540         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5541         commit_reversible_command ();
5542 }
5543
5544 void
5545 Editor::split_region_at_transients ()
5546 {
5547         AnalysisFeatureList positions;
5548
5549         if (!session) {
5550                 return;
5551         }
5552
5553         RegionSelection rs;
5554
5555         get_regions_for_action (rs);
5556
5557         if (rs.empty()) {
5558                 return;
5559         }
5560
5561         session->begin_reversible_command (_("split regions"));
5562
5563         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5564
5565                 RegionSelection::iterator tmp;
5566
5567                 tmp = i;
5568                 ++tmp;
5569
5570                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5571
5572                 if (ar && (ar->get_transients (positions) == 0)) {
5573                         split_region_at_points ((*i)->region(), positions, true);
5574                         positions.clear ();
5575                 }
5576
5577                 i = tmp;
5578         }
5579
5580         session->commit_reversible_command ();
5581
5582 }
5583
5584 void
5585 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5586 {
5587         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
5588         bool use_rhythmic_rodent = false;
5589
5590         if (!ar) {
5591                 return;
5592         }
5593
5594         boost::shared_ptr<Playlist> pl = ar->playlist();
5595
5596         if (!pl) {
5597                 return;
5598         }
5599
5600         if (positions.empty()) {
5601                 return;
5602         }
5603
5604
5605         if (positions.size() > 20) {
5606                 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);
5607                 MessageDialog msg (msgstr,
5608                                    false,
5609                                    Gtk::MESSAGE_INFO,
5610                                    Gtk::BUTTONS_OK_CANCEL);
5611
5612                 if (can_ferret) {
5613                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5614                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5615                 } else {
5616                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5617                 }
5618
5619                 msg.set_title (_("Excessive split?"));
5620                 msg.present ();
5621
5622                 int response = msg.run();
5623                 msg.hide ();
5624                 switch (response) {
5625                 case RESPONSE_OK:
5626                         break;
5627                 case RESPONSE_APPLY:
5628                         use_rhythmic_rodent = true;
5629                         break;
5630                 default:
5631                         return;
5632                 }
5633         }
5634
5635         if (use_rhythmic_rodent) {
5636                 show_rhythm_ferret ();
5637                 return;
5638         }
5639
5640         AnalysisFeatureList::const_iterator x;
5641
5642         nframes64_t pos = ar->position();
5643
5644         XMLNode& before (pl->get_state());
5645
5646         x = positions.begin();
5647
5648         while (x != positions.end()) {
5649                 if ((*x) > pos) {
5650                         break;
5651                 }
5652                 ++x;
5653         }
5654
5655         if (x == positions.end()) {
5656                 return;
5657         }
5658
5659         pl->freeze ();
5660         pl->remove_region (ar);
5661
5662         while (x != positions.end()) {
5663
5664                 /* file start = original start + how far we from the initial position ?
5665                  */
5666
5667                 nframes64_t file_start = ar->start() + (pos - ar->position());
5668
5669                 /* length = next position - current position
5670                  */
5671
5672                 nframes64_t len = (*x) - pos;
5673
5674                 /* XXX we do we really want to allow even single-sample regions?
5675                    shouldn't we have some kind of lower limit on region size?
5676                 */
5677
5678                 if (len <= 0) {
5679                         break;
5680                 }
5681
5682                 string new_name;
5683
5684                 if (session->region_name (new_name, ar->name())) {
5685                         break;
5686                 }
5687
5688                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5689
5690                 boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5691                 pl->add_region (r, pos);
5692
5693                 pos += len;
5694                 ++x;
5695
5696                 if (*x > ar->last_frame()) {
5697
5698                         /* add final fragment */
5699
5700                         file_start = ar->start() + (pos - ar->position());
5701                         len = ar->last_frame() - pos;
5702
5703                         boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5704                         pl->add_region (r, pos);
5705
5706                         break;
5707                 }
5708         }
5709
5710         pl->thaw ();
5711
5712         XMLNode& after (pl->get_state());
5713
5714         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
5715 }
5716
5717 void
5718 Editor::tab_to_transient (bool forward)
5719 {
5720         AnalysisFeatureList positions;
5721
5722         if (!session) {
5723                 return;
5724         }
5725
5726         nframes64_t pos = session->audible_frame ();
5727
5728         if (!selection->tracks.empty()) {
5729
5730                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5731
5732                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5733
5734                         if (rtv) {
5735                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
5736                                 if (ds) {
5737                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
5738                                         if (pl) {
5739                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5740
5741                                                 if (result >= 0) {
5742                                                         positions.push_back (result);
5743                                                 }
5744                                         }
5745                                 }
5746                         }
5747                 }
5748
5749         } else {
5750
5751                 RegionSelection rs;
5752
5753                 get_regions_for_action (rs);
5754
5755                 if (rs.empty()) {
5756                         return;
5757                 }
5758
5759                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5760                         (*r)->region()->get_transients (positions);
5761                 }
5762         }
5763
5764         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
5765
5766         if (forward) {
5767                 AnalysisFeatureList::iterator x;
5768
5769                 for (x = positions.begin(); x != positions.end(); ++x) {
5770                         if ((*x) > pos) {
5771                                 break;
5772                         }
5773                 }
5774
5775                 if (x != positions.end ()) {
5776                         session->request_locate (*x);
5777                 }
5778
5779         } else {
5780                 AnalysisFeatureList::reverse_iterator x;
5781
5782                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
5783                         if ((*x) < pos) {
5784                                 break;
5785                         }
5786                 }
5787
5788                 if (x != positions.rend ()) {
5789                         session->request_locate (*x);
5790                 }
5791         }
5792 }
5793
5794 void
5795 Editor::playhead_forward_to_grid ()
5796 {
5797         if (!session) return;
5798         nframes64_t pos = playhead_cursor->current_frame;
5799         if (pos < max_frames - 1) {
5800                 pos += 2;
5801                 snap_to_internal (pos, 1, false);
5802                 session->request_locate (pos);
5803         }
5804 }
5805
5806
5807 void
5808 Editor::playhead_backward_to_grid ()
5809 {
5810         if (!session) return;
5811         nframes64_t pos = playhead_cursor->current_frame;
5812         if (pos > 2) {
5813                 pos -= 2;
5814                 snap_to_internal (pos, -1, false);
5815                 session->request_locate (pos);
5816         }
5817 }
5818
5819 void
5820 Editor::set_track_height (uint32_t h)
5821 {
5822         TrackSelection& ts (selection->tracks);
5823
5824         if (ts.empty()) {
5825                 return;
5826         }
5827
5828         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5829                 (*x)->set_height (h);
5830         }
5831 }
5832
5833 void
5834 Editor::set_track_height_largest ()
5835 {
5836         set_track_height (TimeAxisView::hLargest);
5837 }
5838 void
5839 Editor::set_track_height_large ()
5840 {
5841         set_track_height (TimeAxisView::hLarge);
5842 }
5843 void
5844 Editor::set_track_height_larger ()
5845 {
5846         set_track_height (TimeAxisView::hLarger);
5847 }
5848 void
5849 Editor::set_track_height_normal ()
5850 {
5851         set_track_height (TimeAxisView::hNormal);
5852 }
5853 void
5854 Editor::set_track_height_smaller ()
5855 {
5856         set_track_height (TimeAxisView::hSmaller);
5857 }
5858 void
5859 Editor::set_track_height_small ()
5860 {
5861         set_track_height (TimeAxisView::hSmall);
5862 }
5863
5864 void
5865 Editor::toggle_tracks_active ()
5866 {
5867         TrackSelection& ts (selection->tracks);
5868         bool first = true;
5869         bool target = false;
5870
5871         if (ts.empty()) {
5872                 return;
5873         }
5874
5875         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5876                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
5877
5878                 if (rtv) {
5879                         if (first) {
5880                                 target = !rtv->_route->active();
5881                                 first = false;
5882                         }
5883                         rtv->_route->set_active (target);
5884                 }
5885         }
5886 }
5887
5888 void
5889 Editor::remove_tracks ()
5890 {
5891         TrackSelection& ts (selection->tracks);
5892
5893         if (ts.empty()) {
5894                 return;
5895         }
5896
5897         vector<string> choices;
5898         string prompt;
5899         int ntracks = 0;
5900         int nbusses = 0;
5901         const char* trackstr;
5902         const char* busstr;
5903         vector<boost::shared_ptr<Route> > routes;
5904
5905         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5906                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
5907                 if (rtv) {
5908                         if (rtv->is_track()) {
5909                                 ntracks++;
5910                         } else {
5911                                 nbusses++;
5912                         }
5913                 }
5914                 routes.push_back (rtv->_route);
5915         }
5916
5917         if (ntracks + nbusses == 0) {
5918                 return;
5919         }
5920
5921         if (ntracks > 1) {
5922                 trackstr = _("tracks");
5923         } else {
5924                 trackstr = _("track");
5925         }
5926
5927         if (nbusses > 1) {
5928                 busstr = _("busses");
5929         } else {
5930                 busstr = _("bus");
5931         }
5932
5933         if (ntracks) {
5934                 if (nbusses) {
5935                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
5936                                                     "(You may also lose the playlists associated with the %2)\n\n"
5937                                                     "This action cannot be undone!"),
5938                                                   ntracks, trackstr, nbusses, busstr);
5939                 } else {
5940                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
5941                                                     "(You may also lose the playlists associated with the %2)\n\n"
5942                                                     "This action cannot be undone!"),
5943                                                   ntracks, trackstr);
5944                 }
5945         } else if (nbusses) {
5946                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
5947                                           nbusses, busstr);
5948         }
5949
5950         choices.push_back (_("No, do nothing."));
5951         if (ntracks + nbusses > 1) {
5952                 choices.push_back (_("Yes, remove them."));
5953         } else {
5954                 choices.push_back (_("Yes, remove it."));
5955         }
5956
5957         Choice prompter (prompt, choices);
5958
5959         if (prompter.run () != 1) {
5960                 return;
5961         }
5962
5963         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
5964                 session->remove_route (*x);
5965         }
5966 }
5967
5968 void
5969 Editor::set_waveform_scale (WaveformScale ws)
5970 {
5971         TrackSelection& ts (selection->tracks);
5972
5973         if (ts.empty()) {
5974                 return;
5975         }
5976
5977         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5978                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (*x);
5979                 if (atv) {
5980                         atv->set_waveform_scale (ws);
5981                 }
5982         }
5983 }
5984
5985 void
5986 Editor::do_insert_time ()
5987 {
5988         if (selection->tracks.empty()) {
5989                 return;
5990         }
5991
5992         nframes64_t pos = get_preferred_edit_position ();
5993         ArdourDialog d (*this, _("Insert Time"));
5994         VButtonBox button_box;
5995         VBox option_box;
5996         RadioButtonGroup group;
5997         RadioButton leave_button (group, _("Stay in position"));
5998         RadioButton move_button (group, _("Move"));
5999         RadioButton split_button (group, _("Split & Later Section Moves"));
6000         Label intersect_option_label (_("Intersected regions should:"));
6001         CheckButton glue_button (_("Move Glued Regions"));
6002         CheckButton marker_button (_("Move Markers"));
6003         CheckButton tempo_button (_("Move Tempo & Meters"));
6004         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
6005         HBox clock_box;
6006
6007         clock.set (0);
6008         clock.set_session (session);
6009         clock.set_bbt_reference (pos);
6010
6011         clock_box.pack_start (clock, false, true);
6012
6013         option_box.set_spacing (6);
6014         option_box.pack_start (intersect_option_label, false, false);
6015         option_box.pack_start (button_box, false, false);
6016         option_box.pack_start (glue_button, false, false);
6017         option_box.pack_start (marker_button, false, false);
6018         option_box.pack_start (tempo_button, false, false);
6019
6020         button_box.pack_start (leave_button, false, false);
6021         button_box.pack_start (move_button, false, false);
6022         button_box.pack_start (split_button, false, false);
6023
6024         d.get_vbox()->set_border_width (12);
6025         d.get_vbox()->pack_start (clock_box, false, false);
6026         d.get_vbox()->pack_start (option_box, false, false);
6027
6028         leave_button.show ();
6029         move_button.show ();
6030         split_button.show ();
6031         intersect_option_label.show ();
6032         option_box.show ();
6033         button_box.show ();
6034         glue_button.show ();
6035         clock.show_all();
6036         clock_box.show ();
6037         marker_button.show ();
6038         tempo_button.show ();
6039
6040         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6041         d.add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
6042         d.show ();
6043
6044         int response = d.run ();
6045
6046         if (response != RESPONSE_OK) {
6047                 return;
6048         }
6049
6050         nframes64_t distance = clock.current_duration (pos);
6051
6052         if (distance == 0) {
6053                 return;
6054         }
6055
6056         InsertTimeOption opt;
6057
6058         if (leave_button.get_active()) {
6059                 opt = LeaveIntersected;
6060         } else if (move_button.get_active()) {
6061                 opt = MoveIntersected;
6062         } else {
6063                 opt = SplitIntersected;
6064         }
6065
6066         insert_time (pos, distance, opt, glue_button.get_active(), marker_button.get_active(), tempo_button.get_active());
6067 }
6068
6069 void
6070 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6071                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6072 {
6073         bool commit = false;
6074
6075         if (Config->get_edit_mode() == Lock) {
6076                 return;
6077         }
6078
6079         begin_reversible_command (_("insert time"));
6080
6081         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6082                 /* regions */
6083                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6084
6085                 if (pl) {
6086
6087                         XMLNode &before = pl->get_state();
6088
6089                         if (opt == SplitIntersected) {
6090                                 pl->split (pos);
6091                         }
6092
6093                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6094
6095                         XMLNode &after = pl->get_state();
6096
6097                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6098                         commit = true;
6099                 }
6100
6101                 /* automation */
6102                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6103                 if (rtav) {
6104                         rtav->route ()->shift (pos, frames);
6105                         commit = true;
6106                 }
6107         }
6108
6109         /* markers */
6110         if (markers_too) {
6111                 bool moved = false;
6112                 XMLNode& before (session->locations()->get_state());
6113                 Locations::LocationList copy (session->locations()->list());
6114
6115                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6116
6117                         Locations::LocationList::const_iterator tmp;
6118
6119                         if ((*i)->start() >= pos) {
6120                                 (*i)->set_start ((*i)->start() + frames);
6121                                 if (!(*i)->is_mark()) {
6122                                         (*i)->set_end ((*i)->end() + frames);
6123                                 }
6124                                 moved = true;
6125                         }
6126                 }
6127
6128                 if (moved) {
6129                         XMLNode& after (session->locations()->get_state());
6130                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6131                 }
6132         }
6133
6134         if (tempo_too)
6135                 session->tempo_map().insert_time (pos, frames);
6136
6137         if (commit) {
6138                 commit_reversible_command ();
6139         }
6140 }
6141
6142 void
6143 Editor::fit_tracks ()
6144 {
6145         if (selection->tracks.empty()) {
6146                 return;
6147         }
6148
6149         uint32_t child_heights = 0;
6150
6151         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6152
6153                 if (!(*t)->marked_for_display()) {
6154                         continue;
6155                 }
6156
6157                 child_heights += ((*t)->effective_height - (*t)->current_height());
6158         }
6159
6160         uint32_t h = (uint32_t) floor ((canvas_height - child_heights - canvas_timebars_vsize)/selection->tracks.size());
6161         double first_y_pos = DBL_MAX;
6162
6163         if (h < TimeAxisView::hSmall) {
6164                 MessageDialog msg (*this, _("There are too many selected tracks to fit in the current window"));
6165                 /* too small to be displayed */
6166                 return;
6167         }
6168
6169         undo_visual_stack.push_back (current_visual_state());
6170
6171         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6172
6173         bool prev_was_selected = false;
6174         bool is_selected = selection->selected (track_views.front());
6175         bool next_is_selected;
6176
6177         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6178
6179                 TrackViewList::iterator next;
6180
6181                 next = t;
6182                 ++next;
6183
6184                 if (next != track_views.end()) {
6185                         next_is_selected = selection->selected (*next);
6186                 } else {
6187                         next_is_selected = false;
6188                 }
6189
6190                 if (is_selected) {
6191                         (*t)->set_height (h);
6192                         first_y_pos = std::min ((*t)->y_position, first_y_pos);
6193                 } else {
6194                         if (prev_was_selected && next_is_selected) {
6195                                 hide_track_in_display (**t);
6196                         }
6197                 }
6198
6199                 prev_was_selected = is_selected;
6200                 is_selected = next_is_selected;
6201         }
6202
6203         /*
6204            set the controls_layout height now, because waiting for its size
6205            request signal handler will cause the vertical adjustment setting to fail
6206         */
6207
6208         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6209         vertical_adjustment.set_value (first_y_pos);
6210
6211         redo_visual_stack.push_back (current_visual_state());
6212 }
6213
6214 void
6215 Editor::save_visual_state (uint32_t n)
6216 {
6217         while (visual_states.size() <= n) {
6218                 visual_states.push_back (0);
6219         }
6220
6221         if (visual_states[n] != 0) {
6222                 delete visual_states[n];
6223         }
6224
6225         visual_states[n] = current_visual_state (true);
6226         gdk_beep ();
6227 }
6228
6229 void
6230 Editor::goto_visual_state (uint32_t n)
6231 {
6232         if (visual_states.size() <= n) {
6233                 return;
6234         }
6235
6236         if (visual_states[n] == 0) {
6237                 return;
6238         }
6239
6240         use_visual_state (*visual_states[n]);
6241 }
6242
6243 void
6244 Editor::start_visual_state_op (uint32_t n)
6245 {
6246         cerr << "Start visual op\n";
6247         if (visual_state_op_connection.empty()) {
6248                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6249                 cerr << "\tqueued new timeout\n";
6250         }
6251 }
6252
6253 void
6254 Editor::cancel_visual_state_op (uint32_t n)
6255 {
6256         if (!visual_state_op_connection.empty()) {
6257                 cerr << "cancel visual op, time to goto\n";
6258                 visual_state_op_connection.disconnect();
6259                 goto_visual_state (n);
6260         } else {
6261                 cerr << "cancel visual op, do nothing\n";
6262         }
6263 }
6264
6265 bool
6266 Editor::end_visual_state_op (uint32_t n)
6267 {
6268         visual_state_op_connection.disconnect();
6269         save_visual_state (n);
6270
6271         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6272         char buf[32];
6273         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6274         pup->set_text (buf);
6275         pup->touch();
6276
6277         return false; // do not call again
6278 }
6279