gtk2_ardour/editor_ops.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #include <unistd.h>
  23
  24 #include <cstdlib>
  25 #include <cmath>
  26 #include <string>
  27 #include <map>
  28
  29 #include <pbd/error.h>
  30 #include <pbd/basename.h>
  31 #include <pbd/pthread_utils.h>
  32 #include <pbd/memento_command.h>
  33 #include <pbd/whitespace.h>
  34
  35 #include <gtkmm2ext/utils.h>
  36 #include <gtkmm2ext/choice.h>
  37 #include <gtkmm2ext/window_title.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 #include <ardour/quantize.h>
  56
  57 #include "ardour_ui.h"
  58 #include "editor.h"
  59 #include "time_axis_view.h"
  60 #include "route_time_axis.h"
  61 #include "audio_time_axis.h"
  62 #include "automation_time_axis.h"
  63 #include "streamview.h"
  64 #include "audio_region_view.h"
  65 #include "midi_region_view.h"
  66 #include "rgb_macros.h"
  67 #include "selection_templates.h"
  68 #include "selection.h"
  69 #include "editing.h"
  70 #include "gtk-custom-hruler.h"
  71 #include "gui_thread.h"
  72 #include "keyboard.h"
  73 #include "utils.h"
  74
  75 #include "i18n.h"
  76
  77 using namespace std;
  78 using namespace ARDOUR;
  79 using namespace PBD;
  80 using namespace sigc;
  81 using namespace Gtk;
  82 using namespace Gtkmm2ext;
  83 using namespace Editing;
  84
  85 /***********************************************************************
  86   Editor operations
  87  ***********************************************************************/
  88
  89 void
  90 Editor::undo (uint32_t n)
  91 {
  92         if (session) {
  93                 session->undo (n);
  94         }
  95 }
  96
  97 void
  98 Editor::redo (uint32_t n)
  99 {
 100         if (session) {
 101                 session->redo (n);
 102         }
 103 }
 104
 105 void
 106 Editor::split_region ()
 107 {
 108         split_region_at (get_preferred_edit_position());
 109 }
 110
 111 void
 112 Editor::split_region_at (nframes_t where)
 113 {
 114         RegionSelection rs;
 115
 116         get_regions_for_action (rs);
 117         split_regions_at (where, selection->regions);
 118 }
 119
 120 void
 121 Editor::split_regions_at (nframes_t where, RegionSelection& regions)
 122 {
 123         list <boost::shared_ptr<Playlist > > used_playlists;
 124
 125         if (regions.empty()) {
 126                 return;
 127         }
 128
 129         begin_reversible_command (_("split"));
 130
 131         // if splitting a single region, and snap-to is using
 132         // region boundaries, don't pay attention to them
 133
 134         if (regions.size() == 1) {
 135                 switch (snap_type) {
 136                 case SnapToRegionStart:
 137                 case SnapToRegionSync:
 138                 case SnapToRegionEnd:
 139                         break;
 140                 default:
 141                         snap_to (where);
 142                 }
 143         } else {
 144                 snap_to (where);
 145         }
 146
 147         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 148
 149                 RegionSelection::iterator tmp;
 150
 151                 /* XXX this test needs to be more complicated, to make sure we really
 152                    have something to split.
 153                 */
 154
 155                 if (!(*a)->region()->covers (where)) {
 156                         ++a;
 157                         continue;
 158                 }
 159
 160                 tmp = a;
 161                 ++tmp;
 162
 163                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 164
 165                 if (! pl->frozen()) {
 166                         /* we haven't seen this playlist before */
 167
 168                         /* remember used playlists so we can thaw them later */
 169                         used_playlists.push_back(pl);
 170                         pl->freeze();
 171                 }
 172
 173                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 174
 175                 if (arv) {
 176                         _new_regionviews_show_envelope = arv->envelope_visible();
 177                 }
 178
 179                 if (pl) {
 180                         XMLNode &before = pl->get_state();
 181                         pl->split_region ((*a)->region(), where);
 182                         XMLNode &after = pl->get_state();
 183                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 184                 }
 185
 186                 a = tmp;
 187         }
 188         while (used_playlists.size() > 0) {
 189
 190                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 191                 (*i)->thaw();
 192                 used_playlists.pop_front();
 193         }
 194         commit_reversible_command ();
 195         _new_regionviews_show_envelope = false;
 196 }
 197
 198
 199 /** Remove `clicked_regionview' */
 200 void
 201 Editor::remove_clicked_region ()
 202 {
 203         if (clicked_routeview == 0 || clicked_regionview == 0) {
 204                 return;
 205         }
 206
 207         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
 208
 209         begin_reversible_command (_("remove region"));
 210         XMLNode &before = playlist->get_state();
 211         playlist->remove_region (clicked_regionview->region());
 212         XMLNode &after = playlist->get_state();
 213         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 214         commit_reversible_command ();
 215 }
 216
 217
 218 /** Remove the selected regions */
 219 void
 220 Editor::remove_selected_regions ()
 221 {
 222         if (selection->regions.empty()) {
 223                 return;
 224         }
 225
 226         /* XXX: should be called remove regions if we're removing more than one */
 227         begin_reversible_command (_("remove region"));
 228
 229
 230         while (!selection->regions.empty()) {
 231                 boost::shared_ptr<Region> region = selection->regions.front()->region ();
 232                 boost::shared_ptr<Playlist> playlist = region->playlist ();
 233
 234                 XMLNode &before = playlist->get_state();
 235                 playlist->remove_region (region);
 236                 XMLNode &after = playlist->get_state();
 237                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 238         }
 239
 240         commit_reversible_command ();
 241 }
 242
 243 boost::shared_ptr<Region>
 244 Editor::select_region_for_operation (int dir, TimeAxisView **tv)
 245 {
 246         RegionView* rv;
 247         boost::shared_ptr<Region> region;
 248         nframes_t start = 0;
 249
 250         if (selection->time.start () == selection->time.end_frame ()) {
 251
 252                 /* no current selection-> is there a selected regionview? */
 253
 254                 if (selection->regions.empty()) {
 255                         return region;
 256                 }
 257
 258         }
 259
 260         if (!selection->regions.empty()) {
 261
 262                 rv = *(selection->regions.begin());
 263                 (*tv) = &rv->get_time_axis_view();
 264                 region = rv->region();
 265
 266         } else if (!selection->tracks.empty()) {
 267
 268                 (*tv) = selection->tracks.front();
 269
 270                 RouteTimeAxisView* rtv;
 271
 272                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 273                         boost::shared_ptr<Playlist> pl;
 274
 275                         if ((pl = rtv->playlist()) == 0) {
 276                                 return region;
 277                         }
 278
 279                         region = pl->top_region_at (start);
 280                 }
 281         }
 282
 283         return region;
 284 }
 285
 286 void
 287 Editor::extend_selection_to_end_of_region (bool next)
 288 {
 289         TimeAxisView *tv;
 290         boost::shared_ptr<Region> region;
 291         nframes_t start;
 292
 293         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 294                 return;
 295         }
 296
 297         if (region && selection->time.start () == selection->time.end_frame ()) {
 298                 start = region->position();
 299         } else {
 300                 start = selection->time.start ();
 301         }
 302
 303         /* Try to leave the selection with the same route if possible */
 304
 305         if ((tv = selection->time.track) == 0) {
 306                 return;
 307         }
 308
 309         begin_reversible_command (_("extend selection"));
 310         selection->set (tv, start, region->position() + region->length());
 311         commit_reversible_command ();
 312 }
 313
 314 void
 315 Editor::extend_selection_to_start_of_region (bool previous)
 316 {
 317         TimeAxisView *tv;
 318         boost::shared_ptr<Region> region;
 319         nframes_t end;
 320
 321         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 322                 return;
 323         }
 324
 325         if (region && selection->time.start () == selection->time.end_frame ()) {
 326                 end = region->position() + region->length();
 327         } else {
 328                 end = selection->time.end_frame ();
 329         }
 330
 331         /* Try to leave the selection with the same route if possible */
 332
 333         if ((tv = selection->time.track) == 0) {
 334                 return;
 335         }
 336
 337         begin_reversible_command (_("extend selection"));
 338         selection->set (tv, region->position(), end);
 339         commit_reversible_command ();
 340 }
 341
 342 bool
 343 Editor::nudge_forward_release (GdkEventButton* ev)
 344 {
 345         if (ev->state & Keyboard::PrimaryModifier) {
 346                 nudge_forward (false, true);
 347         } else {
 348                 nudge_forward (false, false);
 349         }
 350         return false;
 351 }
 352
 353 bool
 354 Editor::nudge_backward_release (GdkEventButton* ev)
 355 {
 356         if (ev->state & Keyboard::PrimaryModifier) {
 357                 nudge_backward (false, true);
 358         } else {
 359                 nudge_backward (false, false);
 360         }
 361         return false;
 362 }
 363
 364
 365 void
 366 Editor::nudge_forward (bool next, bool force_playhead)
 367 {
 368         nframes_t distance;
 369         nframes_t next_distance;
 370         RegionSelection rs;
 371
 372         get_regions_for_action (rs);
 373
 374         if (!session) return;
 375
 376         if (!force_playhead && !rs.empty()) {
 377
 378                 begin_reversible_command (_("nudge regions forward"));
 379
 380                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 381                         boost::shared_ptr<Region> r ((*i)->region());
 382
 383                         distance = get_nudge_distance (r->position(), next_distance);
 384
 385                         if (next) {
 386                                 distance = next_distance;
 387                         }
 388
 389                         XMLNode &before = r->playlist()->get_state();
 390                         r->set_position (r->position() + distance, this);
 391                         XMLNode &after = r->playlist()->get_state();
 392                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 393                 }
 394
 395                 commit_reversible_command ();
 396
 397
 398         } else if (!force_playhead && !selection->markers.empty()) {
 399
 400                 bool is_start;
 401                 Location* loc = find_location_from_marker (selection->markers.front(), is_start);
 402
 403                 if (loc) {
 404
 405                         begin_reversible_command (_("nudge location forward"));
 406
 407                         XMLNode& before (loc->get_state());
 408
 409                         if (is_start) {
 410                                 distance = get_nudge_distance (loc->start(), next_distance);
 411                                 if (next) {
 412                                         distance = next_distance;
 413                                 }
 414                                 if (max_frames - distance > loc->start() + loc->length()) {
 415                                         loc->set_start (loc->start() + distance);
 416                                 } else {
 417                                         loc->set_start (max_frames - loc->length());
 418                                 }
 419                         } else {
 420                                 distance = get_nudge_distance (loc->end(), next_distance);
 421                                 if (next) {
 422                                         distance = next_distance;
 423                                 }
 424                                 if (max_frames - distance > loc->end()) {
 425                                         loc->set_end (loc->end() + distance);
 426                                 } else {
 427                                         loc->set_end (max_frames);
 428                                 }
 429                         }
 430                         XMLNode& after (loc->get_state());
 431                         session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 432                         commit_reversible_command ();
 433                 }
 434
 435         } else {
 436                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 437                 session->request_locate (playhead_cursor->current_frame + distance);
 438         }
 439 }
 440
 441 void
 442 Editor::nudge_backward (bool next, bool force_playhead)
 443 {
 444         nframes_t distance;
 445         nframes_t next_distance;
 446         RegionSelection rs;
 447
 448         get_regions_for_action (rs);
 449
 450         if (!session) return;
 451
 452         if (!force_playhead && !rs.empty()) {
 453
 454                 begin_reversible_command (_("nudge regions backward"));
 455
 456                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 457                         boost::shared_ptr<Region> r ((*i)->region());
 458
 459                         distance = get_nudge_distance (r->position(), next_distance);
 460
 461                         if (next) {
 462                                 distance = next_distance;
 463                         }
 464
 465                         XMLNode &before = r->playlist()->get_state();
 466
 467                         if (r->position() > distance) {
 468                                 r->set_position (r->position() - distance, this);
 469                         } else {
 470                                 r->set_position (0, this);
 471                         }
 472                         XMLNode &after = r->playlist()->get_state();
 473                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 474                 }
 475
 476                 commit_reversible_command ();
 477
 478         } else if (!force_playhead && !selection->markers.empty()) {
 479
 480                 bool is_start;
 481                 Location* loc = find_location_from_marker (selection->markers.front(), is_start);
 482
 483                 if (loc) {
 484
 485                         begin_reversible_command (_("nudge location forward"));
 486                         XMLNode& before (loc->get_state());
 487
 488                         if (is_start) {
 489                                 distance = get_nudge_distance (loc->start(), next_distance);
 490                                 if (next) {
 491                                         distance = next_distance;
 492                                 }
 493                                 if (distance < loc->start()) {
 494                                         loc->set_start (loc->start() - distance);
 495                                 } else {
 496                                         loc->set_start (0);
 497                                 }
 498                         } else {
 499                                 distance = get_nudge_distance (loc->end(), next_distance);
 500
 501                                 if (next) {
 502                                         distance = next_distance;
 503                                 }
 504
 505                                 if (distance < loc->end() - loc->length()) {
 506                                         loc->set_end (loc->end() - distance);
 507                                 } else {
 508                                         loc->set_end (loc->length());
 509                                 }
 510                         }
 511
 512                         XMLNode& after (loc->get_state());
 513                         session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 514                 }
 515
 516         } else {
 517
 518                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 519
 520                 if (playhead_cursor->current_frame > distance) {
 521                         session->request_locate (playhead_cursor->current_frame - distance);
 522                 } else {
 523                         session->goto_start();
 524                 }
 525         }
 526 }
 527
 528 void
 529 Editor::nudge_forward_capture_offset ()
 530 {
 531         nframes_t distance;
 532         RegionSelection rs;
 533
 534         get_regions_for_action (rs);
 535
 536         if (!session) return;
 537
 538         if (!rs.empty()) {
 539
 540                 begin_reversible_command (_("nudge forward"));
 541
 542                 distance = session->worst_output_latency();
 543
 544                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 545                         boost::shared_ptr<Region> r ((*i)->region());
 546
 547                         XMLNode &before = r->playlist()->get_state();
 548                         r->set_position (r->position() + distance, this);
 549                         XMLNode &after = r->playlist()->get_state();
 550                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 551                 }
 552
 553                 commit_reversible_command ();
 554
 555         }
 556 }
 557
 558 void
 559 Editor::nudge_backward_capture_offset ()
 560 {
 561         nframes_t distance;
 562         RegionSelection rs;
 563
 564         get_regions_for_action (rs);
 565
 566         if (!session) return;
 567
 568         if (!rs.empty()) {
 569
 570                 begin_reversible_command (_("nudge forward"));
 571
 572                 distance = session->worst_output_latency();
 573
 574                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 575                         boost::shared_ptr<Region> r ((*i)->region());
 576
 577                         XMLNode &before = r->playlist()->get_state();
 578
 579                         if (r->position() > distance) {
 580                                 r->set_position (r->position() - distance, this);
 581                         } else {
 582                                 r->set_position (0, this);
 583                         }
 584                         XMLNode &after = r->playlist()->get_state();
 585                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 586                 }
 587
 588                 commit_reversible_command ();
 589         }
 590 }
 591
 592 /* DISPLAY MOTION */
 593
 594 void
 595 Editor::move_to_start ()
 596 {
 597         session->goto_start ();
 598 }
 599
 600 void
 601 Editor::move_to_end ()
 602 {
 603
 604         session->request_locate (session->current_end_frame());
 605 }
 606
 607 void
 608 Editor::build_region_boundary_cache ()
 609 {
 610         nframes_t pos = 0;
 611         vector<RegionPoint> interesting_points;
 612         boost::shared_ptr<Region> r;
 613         TrackViewList tracks;
 614         bool at_end = false;
 615
 616         region_boundary_cache.clear ();
 617
 618         if (session == 0) {
 619                 return;
 620         }
 621
 622         switch (snap_type) {
 623         case SnapToRegionStart:
 624                 interesting_points.push_back (Start);
 625                 break;
 626         case SnapToRegionEnd:
 627                 interesting_points.push_back (End);
 628                 break;
 629         case SnapToRegionSync:
 630                 interesting_points.push_back (SyncPoint);
 631                 break;
 632         case SnapToRegionBoundary:
 633                 interesting_points.push_back (Start);
 634                 interesting_points.push_back (End);
 635                 break;
 636         default:
 637                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 638                 /*NOTREACHED*/
 639                 return;
 640         }
 641
 642         TimeAxisView *ontrack = 0;
 643         TrackViewList tlist;
 644
 645         if (!selection->tracks.empty()) {
 646                 tlist = selection->tracks;
 647         } else {
 648                 tlist = track_views;
 649         }
 650
 651         while (pos < session->current_end_frame() && !at_end) {
 652
 653                 nframes_t rpos;
 654                 nframes_t lpos = max_frames;
 655
 656                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 657
 658                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 659                                 if (*p == interesting_points.back()) {
 660                                         at_end = true;
 661                                 }
 662                                 /* move to next point type */
 663                                 continue;
 664                         }
 665
 666                         switch (*p) {
 667                         case Start:
 668                                 rpos = r->first_frame();
 669                                 break;
 670
 671                         case End:
 672                                 rpos = r->last_frame();
 673                                 break;
 674
 675                         case SyncPoint:
 676                                 rpos = r->adjust_to_sync (r->first_frame());
 677                                 break;
 678
 679                         default:
 680                                 break;
 681                         }
 682
 683                         float speed = 1.0f;
 684                         RouteTimeAxisView *rtav;
 685
 686                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 687                                 if (rtav->get_diskstream() != 0) {
 688                                         speed = rtav->get_diskstream()->speed();
 689                                 }
 690                         }
 691
 692                         rpos = track_frame_to_session_frame (rpos, speed);
 693
 694                         if (rpos < lpos) {
 695                                 lpos = rpos;
 696                         }
 697
 698                         /* prevent duplicates, but we don't use set<> because we want to be able
 699                            to sort later.
 700                         */
 701
 702                         vector<nframes_t>::iterator ri;
 703
 704                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 705                                 if (*ri == rpos) {
 706                                         break;
 707                                 }
 708                         }
 709
 710                         if (ri == region_boundary_cache.end()) {
 711                                 region_boundary_cache.push_back (rpos);
 712                         }
 713                 }
 714
 715                 pos = lpos + 1;
 716         }
 717
 718         /* finally sort to be sure that the order is correct */
 719
 720         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 721 }
 722
 723 boost::shared_ptr<Region>
 724 Editor::find_next_region (nframes_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 725 {
 726         TrackViewList::iterator i;
 727         nframes_t closest = max_frames;
 728         boost::shared_ptr<Region> ret;
 729         nframes_t rpos = 0;
 730
 731         float track_speed;
 732         nframes_t track_frame;
 733         RouteTimeAxisView *rtav;
 734
 735         for (i = tracks.begin(); i != tracks.end(); ++i) {
 736
 737                 nframes_t distance;
 738                 boost::shared_ptr<Region> r;
 739
 740                 track_speed = 1.0f;
 741                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 742                         if (rtav->get_diskstream()!=0)
 743                                 track_speed = rtav->get_diskstream()->speed();
 744                 }
 745
 746                 track_frame = session_frame_to_track_frame(frame, track_speed);
 747
 748                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 749                         continue;
 750                 }
 751
 752                 switch (point) {
 753                 case Start:
 754                         rpos = r->first_frame ();
 755                         break;
 756
 757                 case End:
 758                         rpos = r->last_frame ();
 759                         break;
 760
 761                 case SyncPoint:
 762                         rpos = r->adjust_to_sync (r->first_frame());
 763                         break;
 764                 }
 765
 766                 // rpos is a "track frame", converting it to "session frame"
 767                 rpos = track_frame_to_session_frame(rpos, track_speed);
 768
 769                 if (rpos > frame) {
 770                         distance = rpos - frame;
 771                 } else {
 772                         distance = frame - rpos;
 773                 }
 774
 775                 if (distance < closest) {
 776                         closest = distance;
 777                         if (ontrack != 0)
 778                                 *ontrack = (*i);
 779                         ret = r;
 780                 }
 781         }
 782
 783         return ret;
 784 }
 785
 786 nframes64_t
 787 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 788 {
 789         nframes64_t distance = max_frames;
 790         nframes64_t current_nearest = -1;
 791
 792         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 793                 nframes64_t contender;
 794                 nframes64_t d;
 795
 796                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 797
 798                 if (!rtv) {
 799                         continue;
 800                 }
 801
 802                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 803                         continue;
 804                 }
 805
 806                 d = ::llabs (pos - contender);
 807
 808                 if (d < distance) {
 809                         current_nearest = contender;
 810                         distance = d;
 811                 }
 812         }
 813
 814         return current_nearest;
 815 }
 816
 817 void
 818 Editor::cursor_to_region_boundary (Cursor* cursor, int32_t dir)
 819 {
 820         nframes64_t pos = cursor->current_frame;
 821         nframes64_t target;
 822
 823         if (!session) {
 824                 return;
 825         }
 826
 827         // so we don't find the current region again..
 828         if (dir > 0 || pos > 0) {
 829                 pos += dir;
 830         }
 831
 832         if (!selection->tracks.empty()) {
 833
 834                 target = find_next_region_boundary (pos, dir, selection->tracks);
 835
 836         } else {
 837
 838                 target = find_next_region_boundary (pos, dir, track_views);
 839         }
 840
 841         if (target < 0) {
 842                 return;
 843         }
 844
 845
 846         if (cursor == playhead_cursor) {
 847                 session->request_locate (target);
 848         } else {
 849                 cursor->set_position (target);
 850         }
 851 }
 852
 853 void
 854 Editor::cursor_to_next_region_boundary (Cursor* cursor)
 855 {
 856         cursor_to_region_boundary (cursor, 1);
 857 }
 858
 859 void
 860 Editor::cursor_to_previous_region_boundary (Cursor* cursor)
 861 {
 862         cursor_to_region_boundary (cursor, -1);
 863 }
 864
 865 void
 866 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 867 {
 868         boost::shared_ptr<Region> r;
 869         nframes_t pos = cursor->current_frame;
 870
 871         if (!session) {
 872                 return;
 873         }
 874
 875         TimeAxisView *ontrack = 0;
 876
 877         // so we don't find the current region again..
 878         if (dir>0 || pos>0)
 879                 pos+=dir;
 880
 881         if (!selection->tracks.empty()) {
 882
 883                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 884
 885         } else if (clicked_axisview) {
 886
 887                 TrackViewList t;
 888                 t.push_back (clicked_axisview);
 889
 890                 r = find_next_region (pos, point, dir, t, &ontrack);
 891
 892         } else {
 893
 894                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 895         }
 896
 897         if (r == 0) {
 898                 return;
 899         }
 900
 901         switch (point){
 902         case Start:
 903                 pos = r->first_frame ();
 904                 break;
 905
 906         case End:
 907                 pos = r->last_frame ();
 908                 break;
 909
 910         case SyncPoint:
 911                 pos = r->adjust_to_sync (r->first_frame());
 912                 break;
 913         }
 914
 915         float speed = 1.0f;
 916         RouteTimeAxisView *rtav;
 917
 918         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 919                 if (rtav->get_diskstream() != 0) {
 920                         speed = rtav->get_diskstream()->speed();
 921                 }
 922         }
 923
 924         pos = track_frame_to_session_frame(pos, speed);
 925
 926         if (cursor == playhead_cursor) {
 927                 session->request_locate (pos);
 928         } else {
 929                 cursor->set_position (pos);
 930         }
 931 }
 932
 933 void
 934 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 935 {
 936         cursor_to_region_point (cursor, point, 1);
 937 }
 938
 939 void
 940 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 941 {
 942         cursor_to_region_point (cursor, point, -1);
 943 }
 944
 945 void
 946 Editor::cursor_to_selection_start (Cursor *cursor)
 947 {
 948         nframes_t pos = 0;
 949         RegionSelection rs;
 950
 951         get_regions_for_action (rs);
 952
 953         switch (mouse_mode) {
 954         case MouseObject:
 955                 if (!rs.empty()) {
 956                         pos = rs.start();
 957                 }
 958                 break;
 959
 960         case MouseRange:
 961                 if (!selection->time.empty()) {
 962                         pos = selection->time.start ();
 963                 }
 964                 break;
 965
 966         default:
 967                 return;
 968         }
 969
 970         if (cursor == playhead_cursor) {
 971                 session->request_locate (pos);
 972         } else {
 973                 cursor->set_position (pos);
 974         }
 975 }
 976
 977 void
 978 Editor::cursor_to_selection_end (Cursor *cursor)
 979 {
 980         nframes_t pos = 0;
 981         RegionSelection rs;
 982
 983         get_regions_for_action (rs);
 984
 985         switch (mouse_mode) {
 986         case MouseObject:
 987                 if (!rs.empty()) {
 988                         pos = rs.end_frame();
 989                 }
 990                 break;
 991
 992         case MouseRange:
 993                 if (!selection->time.empty()) {
 994                         pos = selection->time.end_frame ();
 995                 }
 996                 break;
 997
 998         default:
 999                 return;
1000         }
1001
1002         if (cursor == playhead_cursor) {
1003                 session->request_locate (pos);
1004         } else {
1005                 cursor->set_position (pos);
1006         }
1007 }
1008
1009 void
1010 Editor::selected_marker_to_region_boundary (int32_t dir)
1011 {
1012         nframes64_t target;
1013         Location* loc;
1014         bool ignored;
1015
1016         if (!session) {
1017                 return;
1018         }
1019
1020         if (selection->markers.empty()) {
1021                 nframes64_t mouse;
1022                 bool ignored;
1023
1024                 if (!mouse_frame (mouse, ignored)) {
1025                         return;
1026                 }
1027
1028                 add_location_mark (mouse);
1029         }
1030
1031         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1032                 return;
1033         }
1034
1035         nframes64_t pos = loc->start();
1036
1037         // so we don't find the current region again..
1038         if (dir > 0 || pos > 0) {
1039                 pos += dir;
1040         }
1041
1042         if (!selection->tracks.empty()) {
1043
1044                 target = find_next_region_boundary (pos, dir, selection->tracks);
1045
1046         } else {
1047
1048                 target = find_next_region_boundary (pos, dir, track_views);
1049         }
1050
1051         if (target < 0) {
1052                 return;
1053         }
1054
1055         loc->move_to (target);
1056 }
1057
1058 void
1059 Editor::selected_marker_to_next_region_boundary ()
1060 {
1061         selected_marker_to_region_boundary (1);
1062 }
1063
1064 void
1065 Editor::selected_marker_to_previous_region_boundary ()
1066 {
1067         selected_marker_to_region_boundary (-1);
1068 }
1069
1070 void
1071 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1072 {
1073         boost::shared_ptr<Region> r;
1074         nframes_t pos;
1075         Location* loc;
1076         bool ignored;
1077
1078         if (!session || selection->markers.empty()) {
1079                 return;
1080         }
1081
1082         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1083                 return;
1084         }
1085
1086         TimeAxisView *ontrack = 0;
1087
1088         pos = loc->start();
1089
1090         // so we don't find the current region again..
1091         if (dir>0 || pos>0)
1092                 pos+=dir;
1093
1094         if (!selection->tracks.empty()) {
1095
1096                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1097
1098         } else {
1099
1100                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1101         }
1102
1103         if (r == 0) {
1104                 return;
1105         }
1106
1107         switch (point){
1108         case Start:
1109                 pos = r->first_frame ();
1110                 break;
1111
1112         case End:
1113                 pos = r->last_frame ();
1114                 break;
1115
1116         case SyncPoint:
1117                 pos = r->adjust_to_sync (r->first_frame());
1118                 break;
1119         }
1120
1121         float speed = 1.0f;
1122         AudioTimeAxisView *atav;
1123
1124         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1125                 if (atav->get_diskstream() != 0) {
1126                         speed = atav->get_diskstream()->speed();
1127                 }
1128         }
1129
1130         pos = track_frame_to_session_frame(pos, speed);
1131
1132         loc->move_to (pos);
1133 }
1134
1135 void
1136 Editor::selected_marker_to_next_region_point (RegionPoint point)
1137 {
1138         selected_marker_to_region_point (point, 1);
1139 }
1140
1141 void
1142 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1143 {
1144         selected_marker_to_region_point (point, -1);
1145 }
1146
1147 void
1148 Editor::selected_marker_to_selection_start ()
1149 {
1150         nframes_t pos = 0;
1151         Location* loc;
1152         bool ignored;
1153
1154         if (!session || selection->markers.empty()) {
1155                 return;
1156         }
1157
1158         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1159                 return;
1160         }
1161
1162         RegionSelection rs;
1163
1164         get_regions_for_action (rs);
1165
1166         switch (mouse_mode) {
1167         case MouseObject:
1168                 if (!rs.empty()) {
1169                         pos = rs.start();
1170                 }
1171                 break;
1172
1173         case MouseRange:
1174                 if (!selection->time.empty()) {
1175                         pos = selection->time.start ();
1176                 }
1177                 break;
1178
1179         default:
1180                 return;
1181         }
1182
1183         loc->move_to (pos);
1184 }
1185
1186 void
1187 Editor::selected_marker_to_selection_end ()
1188 {
1189         nframes_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.end_frame();
1209                 }
1210                 break;
1211
1212         case MouseRange:
1213                 if (!selection->time.empty()) {
1214                         pos = selection->time.end_frame ();
1215                 }
1216                 break;
1217
1218         default:
1219                 return;
1220         }
1221
1222         loc->move_to (pos);
1223 }
1224
1225 void
1226 Editor::scroll_playhead (bool forward)
1227 {
1228         nframes_t pos = playhead_cursor->current_frame;
1229         nframes_t delta = (nframes_t) floor (current_page_frames() / 0.8);
1230
1231         if (forward) {
1232                 if (pos == max_frames) {
1233                         return;
1234                 }
1235
1236                 if (pos < max_frames - delta) {
1237                         pos += delta ;
1238                 } else {
1239                         pos = max_frames;
1240                 }
1241
1242         } else {
1243
1244                 if (pos == 0) {
1245                         return;
1246                 }
1247
1248                 if (pos > delta) {
1249                         pos -= delta;
1250                 } else {
1251                         pos = 0;
1252                 }
1253         }
1254
1255         session->request_locate (pos);
1256 }
1257
1258 void
1259 Editor::playhead_backward ()
1260 {
1261         nframes_t pos;
1262         nframes_t cnt;
1263         float prefix;
1264         bool was_floating;
1265
1266         if (get_prefix (prefix, was_floating)) {
1267                 cnt = 1;
1268         } else {
1269                 if (was_floating) {
1270                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1271                 } else {
1272                         cnt = (nframes_t) prefix;
1273                 }
1274         }
1275
1276         pos = playhead_cursor->current_frame;
1277
1278         if ((nframes_t) pos < cnt) {
1279                 pos = 0;
1280         } else {
1281                 pos -= cnt;
1282         }
1283
1284         /* XXX this is completely insane. with the current buffering
1285            design, we'll force a complete track buffer flush and
1286            reload, just to move 1 sample !!!
1287         */
1288
1289         session->request_locate (pos);
1290 }
1291
1292 void
1293 Editor::playhead_forward ()
1294 {
1295         nframes_t pos;
1296         nframes_t cnt;
1297         bool was_floating;
1298         float prefix;
1299
1300         if (get_prefix (prefix, was_floating)) {
1301                 cnt = 1;
1302         } else {
1303                 if (was_floating) {
1304                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1305                 } else {
1306                         cnt = (nframes_t) floor (prefix);
1307                 }
1308         }
1309
1310         pos = playhead_cursor->current_frame;
1311
1312         /* XXX this is completely insane. with the current buffering
1313            design, we'll force a complete track buffer flush and
1314            reload, just to move 1 sample !!!
1315         */
1316
1317         session->request_locate (pos+cnt);
1318 }
1319
1320 void
1321 Editor::cursor_align (bool playhead_to_edit)
1322 {
1323         if (!session) {
1324                 return;
1325         }
1326
1327         if (playhead_to_edit) {
1328
1329                 if (selection->markers.empty()) {
1330                         return;
1331                 }
1332
1333                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1334
1335         } else {
1336                 /* move selected markers to playhead */
1337
1338                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1339                         bool ignored;
1340
1341                         Location* loc = find_location_from_marker (*i, ignored);
1342
1343                         if (loc->is_mark()) {
1344                                 loc->set_start (playhead_cursor->current_frame);
1345                         } else {
1346                                 loc->set (playhead_cursor->current_frame,
1347                                           playhead_cursor->current_frame + loc->length());
1348                         }
1349                 }
1350         }
1351 }
1352
1353 void
1354 Editor::edit_cursor_backward ()
1355 {
1356         nframes64_t pos;
1357         nframes64_t cnt;
1358         float prefix;
1359         bool was_floating;
1360
1361         if (get_prefix (prefix, was_floating)) {
1362                 cnt = 1;
1363         } else {
1364                 if (was_floating) {
1365                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1366                 } else {
1367                         cnt = (nframes_t) prefix;
1368                 }
1369         }
1370
1371         if ((pos = get_preferred_edit_position()) < 0) {
1372                 return;
1373         }
1374
1375         if (pos < cnt) {
1376                 pos = 0;
1377         } else {
1378                 pos -= cnt;
1379         }
1380
1381         // EDIT CURSOR edit_cursor->set_position (pos);
1382 }
1383
1384 void
1385 Editor::edit_cursor_forward ()
1386 {
1387         //nframes_t pos;
1388         nframes_t cnt;
1389         bool was_floating;
1390         float prefix;
1391
1392         if (get_prefix (prefix, was_floating)) {
1393                 cnt = 1;
1394         } else {
1395                 if (was_floating) {
1396                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1397                 } else {
1398                         cnt = (nframes_t) floor (prefix);
1399                 }
1400         }
1401
1402         // pos = edit_cursor->current_frame;
1403         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1404 }
1405
1406 void
1407 Editor::goto_frame ()
1408 {
1409         float prefix;
1410         bool was_floating;
1411         nframes_t frame;
1412
1413         if (get_prefix (prefix, was_floating)) {
1414                 return;
1415         }
1416
1417         if (was_floating) {
1418                 frame = (nframes_t) floor (prefix * session->frame_rate());
1419         } else {
1420                 frame = (nframes_t) floor (prefix);
1421         }
1422
1423         session->request_locate (frame);
1424 }
1425
1426 void
1427 Editor::scroll_backward (float pages)
1428 {
1429         nframes_t frame;
1430         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
1431         bool was_floating;
1432         float prefix;
1433         nframes_t cnt;
1434
1435         if (get_prefix (prefix, was_floating)) {
1436                 cnt = (nframes_t) floor (pages * one_page);
1437         } else {
1438                 if (was_floating) {
1439                         cnt = (nframes_t) floor (prefix * session->frame_rate());
1440                 } else {
1441                         cnt = (nframes_t) floor (prefix * one_page);
1442                 }
1443         }
1444
1445         if (leftmost_frame < cnt) {
1446                 frame = 0;
1447         } else {
1448                 frame = leftmost_frame - cnt;
1449         }
1450
1451         reset_x_origin (frame);
1452 }
1453
1454 void
1455 Editor::scroll_forward (float pages)
1456 {
1457         nframes_t frame;
1458         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
1459         bool was_floating;
1460         float prefix;
1461         nframes_t cnt;
1462
1463         if (get_prefix (prefix, was_floating)) {
1464                 cnt = (nframes_t) floor (pages * one_page);
1465         } else {
1466                 if (was_floating) {
1467                         cnt = (nframes_t) floor (prefix * session->frame_rate());
1468                 } else {
1469                         cnt = (nframes_t) floor (prefix * one_page);
1470                 }
1471         }
1472
1473         if (max_frames - cnt < leftmost_frame) {
1474                 frame = max_frames - cnt;
1475         } else {
1476                 frame = leftmost_frame + cnt;
1477         }
1478
1479         reset_x_origin (frame);
1480 }
1481
1482 void
1483 Editor::scroll_tracks_down ()
1484 {
1485         float prefix;
1486         bool was_floating;
1487         int cnt;
1488
1489         if (get_prefix (prefix, was_floating)) {
1490                 cnt = 1;
1491         } else {
1492                 cnt = (int) floor (prefix);
1493         }
1494
1495         double vert_value = vertical_adjustment.get_value() + (cnt *
1496                 vertical_adjustment.get_page_size());
1497         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1498                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1499         }
1500         vertical_adjustment.set_value (vert_value);
1501 }
1502
1503 void
1504 Editor::scroll_tracks_up ()
1505 {
1506         float prefix;
1507         bool was_floating;
1508         int cnt;
1509
1510         if (get_prefix (prefix, was_floating)) {
1511                 cnt = 1;
1512         } else {
1513                 cnt = (int) floor (prefix);
1514         }
1515
1516         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1517 }
1518
1519 void
1520 Editor::scroll_tracks_down_line ()
1521 {
1522
1523         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1524         double vert_value = adj->get_value() + 20;
1525
1526         if (vert_value>adj->get_upper() - canvas_height) {
1527                 vert_value = adj->get_upper() - canvas_height;
1528         }
1529         adj->set_value (vert_value);
1530 }
1531
1532 void
1533 Editor::scroll_tracks_up_line ()
1534 {
1535         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1536         adj->set_value (adj->get_value() - 20);
1537 }
1538
1539 /* ZOOM */
1540
1541 void
1542 Editor::temporal_zoom_step (bool coarser)
1543 {
1544         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1545
1546         double nfpu;
1547
1548         nfpu = frames_per_unit;
1549
1550         if (coarser) {
1551                 nfpu *= 1.61803399;
1552         } else {
1553                 nfpu = max(1.0,(nfpu/1.61803399));
1554         }
1555
1556         temporal_zoom (nfpu);
1557 }
1558
1559 void
1560 Editor::temporal_zoom (gdouble fpu)
1561 {
1562         if (!session) return;
1563
1564         nframes64_t current_page = current_page_frames();
1565         nframes64_t current_leftmost = leftmost_frame;
1566         nframes64_t current_rightmost;
1567         nframes64_t current_center;
1568         nframes64_t new_page_size;
1569         nframes64_t half_page_size;
1570         nframes64_t leftmost_after_zoom = 0;
1571         nframes64_t where;
1572         bool in_track_canvas;
1573         double nfpu;
1574         double l;
1575
1576         /* XXX this limit is also in ::set_frames_per_unit() */
1577
1578         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1579                 return;
1580         }
1581
1582         nfpu = fpu;
1583
1584         new_page_size = (nframes_t) floor (canvas_width * nfpu);
1585         half_page_size = new_page_size / 2;
1586
1587         switch (zoom_focus) {
1588         case ZoomFocusLeft:
1589                 leftmost_after_zoom = current_leftmost;
1590                 break;
1591
1592         case ZoomFocusRight:
1593                 current_rightmost = leftmost_frame + current_page;
1594                 if (current_rightmost < new_page_size) {
1595                         leftmost_after_zoom = 0;
1596                 } else {
1597                         leftmost_after_zoom = current_rightmost - new_page_size;
1598                 }
1599                 break;
1600
1601         case ZoomFocusCenter:
1602                 current_center = current_leftmost + (current_page/2);
1603                 if (current_center < half_page_size) {
1604                         leftmost_after_zoom = 0;
1605                 } else {
1606                         leftmost_after_zoom = current_center - half_page_size;
1607                 }
1608                 break;
1609
1610         case ZoomFocusPlayhead:
1611                 /* try to keep the playhead in the same place */
1612
1613                 where = playhead_cursor->current_frame;
1614
1615                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1616
1617                 if (l < 0) {
1618                         leftmost_after_zoom = 0;
1619                 } else if (l > max_frames) {
1620                         leftmost_after_zoom = max_frames - new_page_size;
1621                 } else {
1622                         leftmost_after_zoom = (nframes64_t) l;
1623                 }
1624                 break;
1625
1626         case ZoomFocusMouse:
1627                 /* try to keep the mouse over the same point in the display */
1628
1629                 if (!mouse_frame (where, in_track_canvas)) {
1630                         /* use playhead instead */
1631                         where = playhead_cursor->current_frame;
1632
1633                         if (where < half_page_size) {
1634                                 leftmost_after_zoom = 0;
1635                         } else {
1636                                 leftmost_after_zoom = where - half_page_size;
1637                         }
1638
1639                 } else {
1640
1641                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1642
1643                         if (l < 0) {
1644                                 leftmost_after_zoom = 0;
1645                         } else if (l > max_frames) {
1646                                 leftmost_after_zoom = max_frames - new_page_size;
1647                         } else {
1648                                 leftmost_after_zoom = (nframes64_t) l;
1649                         }
1650                 }
1651
1652                 break;
1653
1654         case ZoomFocusEdit:
1655                 /* try to keep the edit point in the same place */
1656                 where = get_preferred_edit_position ();
1657
1658                 if (where > 0) {
1659
1660                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1661
1662                         if (l < 0) {
1663                                 leftmost_after_zoom = 0;
1664                         } else if (l > max_frames) {
1665                                 leftmost_after_zoom = max_frames - new_page_size;
1666                         } else {
1667                                 leftmost_after_zoom = (nframes64_t) l;
1668                         }
1669
1670                 } else {
1671                         /* edit point not defined */
1672                         return;
1673                 }
1674                 break;
1675
1676         }
1677
1678         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1679
1680         reposition_and_zoom (leftmost_after_zoom, nfpu);
1681 }
1682
1683 void
1684 Editor::temporal_zoom_region ()
1685 {
1686
1687         nframes64_t start = max_frames;
1688         nframes64_t end = 0;
1689         RegionSelection rs;
1690
1691         get_regions_for_action (rs);
1692
1693         if (rs.empty()) {
1694                 return;
1695         }
1696
1697         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1698                 if ((*i)->region()->position() < start) {
1699                         start = (*i)->region()->position();
1700                 }
1701                 if ((*i)->region()->last_frame() + 1 > end) {
1702                         end = (*i)->region()->last_frame() + 1;
1703                 }
1704         }
1705
1706         /* now comes an "interesting" hack ... make sure we leave a little space
1707            at each end of the editor so that the zoom doesn't fit the region
1708            precisely to the screen.
1709         */
1710
1711         GdkScreen* screen = gdk_screen_get_default ();
1712         gint pixwidth = gdk_screen_get_width (screen);
1713         gint mmwidth = gdk_screen_get_width_mm (screen);
1714         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1715         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1716         nframes_t extra_samples = unit_to_frame (one_centimeter_in_pixels);
1717
1718         if (start > extra_samples) {
1719                 start -= extra_samples;
1720         } else {
1721                 start = 0;
1722         }
1723
1724         if (max_frames - extra_samples > end) {
1725                 end += extra_samples;
1726         } else {
1727                 end = max_frames;
1728         }
1729
1730         temporal_zoom_by_frame (start, end, "zoom to region");
1731         zoomed_to_region = true;
1732 }
1733
1734 void
1735 Editor::toggle_zoom_region ()
1736 {
1737         if (zoomed_to_region) {
1738                 swap_visual_state ();
1739         } else {
1740                 temporal_zoom_region ();
1741         }
1742 }
1743
1744 void
1745 Editor::temporal_zoom_selection ()
1746 {
1747         if (!selection) return;
1748
1749         if (selection->time.empty()) {
1750                 return;
1751         }
1752
1753         nframes_t start = selection->time[clicked_selection].start;
1754         nframes_t end = selection->time[clicked_selection].end;
1755
1756         temporal_zoom_by_frame (start, end, "zoom to selection");
1757 }
1758
1759 void
1760 Editor::temporal_zoom_session ()
1761 {
1762         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1763
1764         if (session) {
1765                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1766         }
1767 }
1768
1769 void
1770 Editor::temporal_zoom_by_frame (nframes_t start, nframes_t end, const string & op)
1771 {
1772         if (!session) return;
1773
1774         if ((start == 0 && end == 0) || end < start) {
1775                 return;
1776         }
1777
1778         nframes_t range = end - start;
1779
1780         double new_fpu = (double)range / (double)canvas_width;
1781 //      double p2 = 1.0;
1782
1783 //      while (p2 < new_fpu) {
1784 //              p2 *= 2.0;
1785 //      }
1786 //      new_fpu = p2;
1787
1788         nframes_t new_page = (nframes_t) floor (canvas_width * new_fpu);
1789         nframes_t middle = (nframes_t) floor( (double)start + ((double)range / 2.0f ));
1790         nframes_t new_leftmost = (nframes_t) floor( (double)middle - ((double)new_page/2.0f));
1791
1792         if (new_leftmost > middle) new_leftmost = 0;
1793
1794 //      begin_reversible_command (op);
1795 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1796 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1797 //      commit_reversible_command ();
1798
1799         reposition_and_zoom (new_leftmost, new_fpu);
1800 }
1801
1802 void
1803 Editor::temporal_zoom_to_frame (bool coarser, nframes_t frame)
1804 {
1805         if (!session) return;
1806
1807         double range_before = frame - leftmost_frame;
1808         double new_fpu;
1809
1810         new_fpu = frames_per_unit;
1811
1812         if (coarser) {
1813                 new_fpu *= 1.61803399;
1814                 range_before *= 1.61803399;
1815         } else {
1816                 new_fpu = max(1.0,(new_fpu/1.61803399));
1817                 range_before /= 1.61803399;
1818         }
1819
1820         if (new_fpu == frames_per_unit) return;
1821
1822         nframes_t new_leftmost = frame - (nframes_t)range_before;
1823
1824         if (new_leftmost > frame) new_leftmost = 0;
1825
1826 //      begin_reversible_command (_("zoom to frame"));
1827 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1828 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1829 //      commit_reversible_command ();
1830
1831         reposition_and_zoom (new_leftmost, new_fpu);
1832 }
1833
1834 void
1835 Editor::add_location_from_selection ()
1836 {
1837         string rangename;
1838
1839         if (selection->time.empty()) {
1840                 return;
1841         }
1842
1843         if (session == 0 || clicked_axisview == 0) {
1844                 return;
1845         }
1846
1847         nframes_t start = selection->time[clicked_selection].start;
1848         nframes_t end = selection->time[clicked_selection].end;
1849
1850         session->locations()->next_available_name(rangename,"selection");
1851         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1852
1853         session->begin_reversible_command (_("add marker"));
1854         XMLNode &before = session->locations()->get_state();
1855         session->locations()->add (location, true);
1856         XMLNode &after = session->locations()->get_state();
1857         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1858         session->commit_reversible_command ();
1859 }
1860
1861 void
1862 Editor::add_location_mark (nframes64_t where)
1863 {
1864         string markername;
1865
1866         select_new_marker = true;
1867
1868         session->locations()->next_available_name(markername,"mark");
1869         Location *location = new Location (where, where, markername, Location::IsMark);
1870         session->begin_reversible_command (_("add marker"));
1871         XMLNode &before = session->locations()->get_state();
1872         session->locations()->add (location, true);
1873         XMLNode &after = session->locations()->get_state();
1874         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1875         session->commit_reversible_command ();
1876 }
1877
1878 void
1879 Editor::add_location_from_playhead_cursor ()
1880 {
1881         add_location_mark (session->audible_frame());
1882 }
1883
1884 void
1885 Editor::add_location_from_audio_region ()
1886 {
1887         RegionSelection rs;
1888
1889         get_regions_for_action (rs);
1890
1891         if (rs.empty()) {
1892                 return;
1893         }
1894
1895         RegionView* rv = *(rs.begin());
1896         boost::shared_ptr<Region> region = rv->region();
1897
1898         Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1899         session->begin_reversible_command (_("add marker"));
1900         XMLNode &before = session->locations()->get_state();
1901         session->locations()->add (location, true);
1902         XMLNode &after = session->locations()->get_state();
1903         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1904         session->commit_reversible_command ();
1905 }
1906
1907 void
1908 Editor::amplitude_zoom_step (bool in)
1909 {
1910         gdouble zoom = 1.0;
1911
1912         if (in) {
1913                 zoom *= 2.0;
1914         } else {
1915                 if (zoom > 2.0) {
1916                         zoom /= 2.0;
1917                 } else {
1918                         zoom = 1.0;
1919                 }
1920         }
1921
1922 #ifdef FIX_FOR_CANVAS
1923         /* XXX DO SOMETHING */
1924 #endif
1925 }
1926
1927
1928 /* DELETION */
1929
1930
1931 void
1932 Editor::delete_sample_forward ()
1933 {
1934 }
1935
1936 void
1937 Editor::delete_sample_backward ()
1938 {
1939 }
1940
1941 void
1942 Editor::delete_screen ()
1943 {
1944 }
1945
1946 /* SEARCH */
1947
1948 void
1949 Editor::search_backwards ()
1950 {
1951         /* what ? */
1952 }
1953
1954 void
1955 Editor::search_forwards ()
1956 {
1957         /* what ? */
1958 }
1959
1960 /* MARKS */
1961
1962 void
1963 Editor::jump_forward_to_mark ()
1964 {
1965         if (!session) {
1966                 return;
1967         }
1968
1969         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
1970
1971         if (location) {
1972                 session->request_locate (location->start(), session->transport_rolling());
1973         } else {
1974                 session->request_locate (session->current_end_frame());
1975         }
1976 }
1977
1978 void
1979 Editor::jump_backward_to_mark ()
1980 {
1981         if (!session) {
1982                 return;
1983         }
1984
1985         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
1986
1987         if (location) {
1988                 session->request_locate (location->start(), session->transport_rolling());
1989         } else {
1990                 session->goto_start ();
1991         }
1992 }
1993
1994 void
1995 Editor::set_mark ()
1996 {
1997         nframes_t pos;
1998         float prefix;
1999         bool was_floating;
2000         string markername;
2001
2002         if (get_prefix (prefix, was_floating)) {
2003                 pos = session->audible_frame ();
2004         } else {
2005                 if (was_floating) {
2006                         pos = (nframes_t) floor (prefix * session->frame_rate ());
2007                 } else {
2008                         pos = (nframes_t) floor (prefix);
2009                 }
2010         }
2011
2012         session->locations()->next_available_name(markername,"mark");
2013         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2014 }
2015
2016 void
2017 Editor::clear_markers ()
2018 {
2019         if (session) {
2020                 session->begin_reversible_command (_("clear markers"));
2021                 XMLNode &before = session->locations()->get_state();
2022                 session->locations()->clear_markers ();
2023                 XMLNode &after = session->locations()->get_state();
2024                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2025                 session->commit_reversible_command ();
2026         }
2027 }
2028
2029 void
2030 Editor::clear_ranges ()
2031 {
2032         if (session) {
2033                 session->begin_reversible_command (_("clear ranges"));
2034                 XMLNode &before = session->locations()->get_state();
2035
2036                 Location * looploc = session->locations()->auto_loop_location();
2037                 Location * punchloc = session->locations()->auto_punch_location();
2038
2039                 session->locations()->clear_ranges ();
2040                 // re-add these
2041                 if (looploc) session->locations()->add (looploc);
2042                 if (punchloc) session->locations()->add (punchloc);
2043
2044                 XMLNode &after = session->locations()->get_state();
2045                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2046                 session->commit_reversible_command ();
2047         }
2048 }
2049
2050 void
2051 Editor::clear_locations ()
2052 {
2053         session->begin_reversible_command (_("clear locations"));
2054         XMLNode &before = session->locations()->get_state();
2055         session->locations()->clear ();
2056         XMLNode &after = session->locations()->get_state();
2057         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2058         session->commit_reversible_command ();
2059         session->locations()->clear ();
2060 }
2061
2062 void
2063 Editor::unhide_markers ()
2064 {
2065         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2066                 Location *l = (*i).first;
2067                 if (l->is_hidden() && l->is_mark()) {
2068                         l->set_hidden(false, this);
2069                 }
2070         }
2071 }
2072
2073 void
2074 Editor::unhide_ranges ()
2075 {
2076         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2077                 Location *l = (*i).first;
2078                 if (l->is_hidden() && l->is_range_marker()) {
2079                         l->set_hidden(false, this);
2080                 }
2081         }
2082 }
2083
2084 /* INSERT/REPLACE */
2085
2086 void
2087 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2088 {
2089         double wx, wy;
2090         double cx, cy;
2091         TimeAxisView *tv;
2092         nframes_t where;
2093         RouteTimeAxisView *rtv = 0;
2094         boost::shared_ptr<Playlist> playlist;
2095
2096         track_canvas->window_to_world (x, y, wx, wy);
2097         wx += horizontal_adjustment.get_value();
2098         wy += vertical_adjustment.get_value();
2099
2100         GdkEvent event;
2101         event.type = GDK_BUTTON_RELEASE;
2102         event.button.x = wx;
2103         event.button.y = wy;
2104
2105         where = event_frame (&event, &cx, &cy);
2106
2107         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2108                 /* clearly outside canvas area */
2109                 return;
2110         }
2111
2112         if ((tv = trackview_by_y_position (cy)) == 0) {
2113                 return;
2114         }
2115
2116         if ((rtv = dynamic_cast<RouteTimeAxisView*>(tv)) == 0) {
2117                 return;
2118         }
2119
2120         if ((playlist = rtv->playlist()) == 0) {
2121                 return;
2122         }
2123
2124         snap_to (where);
2125
2126         begin_reversible_command (_("insert dragged region"));
2127         XMLNode &before = playlist->get_state();
2128         playlist->add_region (RegionFactory::create (region), where, 1.0);
2129         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2130         commit_reversible_command ();
2131 }
2132
2133 void
2134 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y) {
2135         double wx, wy;
2136         double cx, cy;
2137         TimeAxisView *tv;
2138         nframes_t where;
2139         RouteTimeAxisView *dest_rtv = 0;
2140         RouteTimeAxisView *source_rtv = 0;
2141
2142         track_canvas->window_to_world (x, y, wx, wy);
2143         wx += horizontal_adjustment.get_value();
2144         wy += vertical_adjustment.get_value();
2145
2146         GdkEvent event;
2147         event.type = GDK_BUTTON_RELEASE;
2148         event.button.x = wx;
2149         event.button.y = wy;
2150
2151         where = event_frame (&event, &cx, &cy);
2152
2153         if ((tv = trackview_by_y_position (cy)) == 0) {
2154                 return;
2155         }
2156
2157         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*>(tv)) == 0) {
2158                 return;
2159         }
2160
2161         /* use this drag source to add underlay to a track. But we really don't care
2162            about the Route, only the view of the route, so find it first */
2163         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2164                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2165                         continue;
2166                 }
2167
2168                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2169                         dest_rtv->add_underlay(source_rtv->view());
2170                         break;
2171                 }
2172         }
2173 }
2174
2175 void
2176 Editor::insert_region_list_selection (float times)
2177 {
2178         RouteTimeAxisView *tv = 0;
2179         boost::shared_ptr<Playlist> playlist;
2180
2181         if (clicked_routeview != 0) {
2182                 tv = clicked_routeview;
2183         } else if (!selection->tracks.empty()) {
2184                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2185                         return;
2186                 }
2187         } else if (entered_track != 0) {
2188                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2189                         return;
2190                 }
2191         } else {
2192                 return;
2193         }
2194
2195         if ((playlist = tv->playlist()) == 0) {
2196                 return;
2197         }
2198
2199         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2200
2201         if (selected->count_selected_rows() != 1) {
2202                 return;
2203         }
2204
2205         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2206
2207         /* only one row selected, so rows.begin() is it */
2208
2209         TreeIter iter;
2210
2211         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2212
2213                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2214
2215                 begin_reversible_command (_("insert region"));
2216                 XMLNode &before = playlist->get_state();
2217                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2218                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2219                 commit_reversible_command ();
2220         }
2221 }
2222
2223 /* BUILT-IN EFFECTS */
2224
2225 void
2226 Editor::reverse_selection ()
2227 {
2228
2229 }
2230
2231 /* GAIN ENVELOPE EDITING */
2232
2233 void
2234 Editor::edit_envelope ()
2235 {
2236 }
2237
2238 /* PLAYBACK */
2239
2240 void
2241 Editor::transition_to_rolling (bool fwd)
2242 {
2243         if (!session) {
2244                 return;
2245         }
2246
2247         switch (Config->get_slave_source()) {
2248         case None:
2249         case JACK:
2250                 break;
2251         default:
2252                 /* transport controlled by the master */
2253                 return;
2254         }
2255
2256         if (session->is_auditioning()) {
2257                 session->cancel_audition ();
2258                 return;
2259         }
2260
2261         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2262 }
2263
2264 void
2265 Editor::toggle_playback (bool with_abort)
2266 {
2267         if (!session) {
2268                 return;
2269         }
2270
2271         switch (Config->get_slave_source()) {
2272         case None:
2273         case JACK:
2274                 break;
2275         default:
2276                 /* transport controlled by the master */
2277                 return;
2278         }
2279
2280         if (session->is_auditioning()) {
2281                 session->cancel_audition ();
2282                 return;
2283         }
2284
2285         if (session->transport_rolling()) {
2286                 session->request_stop (with_abort);
2287                 if (session->get_play_loop()) {
2288                         session->request_play_loop (false);
2289                 }
2290         } else {
2291                 session->request_transport_speed (1.0f);
2292         }
2293 }
2294
2295 void
2296 Editor::play_from_start ()
2297 {
2298         session->request_locate (session->current_start_frame(), true);
2299 }
2300
2301 void
2302 Editor::play_from_edit_point ()
2303 {
2304         session->request_locate (get_preferred_edit_position(), true);
2305 }
2306
2307 void
2308 Editor::play_from_edit_point_and_return ()
2309 {
2310         nframes64_t start_frame;
2311         nframes64_t return_frame;
2312
2313         start_frame = get_preferred_edit_position (true);
2314
2315         if (session->transport_rolling()) {
2316                 session->request_locate (start_frame, false);
2317                 return;
2318         }
2319
2320         /* don't reset the return frame if its already set */
2321
2322         if ((return_frame = session->requested_return_frame()) < 0) {
2323                 return_frame = session->audible_frame();
2324         }
2325
2326         if (start_frame >= 0) {
2327                 session->request_roll_at_and_return (start_frame, return_frame);
2328         }
2329 }
2330
2331 void
2332 Editor::play_selection ()
2333 {
2334         if (selection->time.empty()) {
2335                 return;
2336         }
2337
2338         session->request_play_range (true);
2339 }
2340
2341 void
2342 Editor::loop_selected_region ()
2343 {
2344         RegionSelection rs;
2345
2346         get_regions_for_action (rs);
2347
2348         if (!rs.empty()) {
2349                 RegionView *rv = *(rs.begin());
2350                 Location* tll;
2351
2352                 if ((tll = transport_loop_location()) != 0)  {
2353
2354                         tll->set (rv->region()->position(), rv->region()->last_frame());
2355
2356                         // enable looping, reposition and start rolling
2357
2358                         session->request_play_loop (true);
2359                         session->request_locate (tll->start(), false);
2360                         session->request_transport_speed (1.0f);
2361                 }
2362         }
2363 }
2364
2365 void
2366 Editor::play_location (Location& location)
2367 {
2368         if (location.start() <= location.end()) {
2369                 return;
2370         }
2371
2372         session->request_bounded_roll (location.start(), location.end());
2373 }
2374
2375 void
2376 Editor::loop_location (Location& location)
2377 {
2378         if (location.start() <= location.end()) {
2379                 return;
2380         }
2381
2382         Location* tll;
2383
2384         if ((tll = transport_loop_location()) != 0) {
2385                 tll->set (location.start(), location.end());
2386
2387                 // enable looping, reposition and start rolling
2388                 session->request_play_loop (true);
2389                 session->request_locate (tll->start(), true);
2390         }
2391 }
2392
2393 void
2394 Editor::raise_region ()
2395 {
2396         selection->foreach_region (&Region::raise);
2397 }
2398
2399 void
2400 Editor::raise_region_to_top ()
2401 {
2402         selection->foreach_region (&Region::raise_to_top);
2403 }
2404
2405 void
2406 Editor::lower_region ()
2407 {
2408         selection->foreach_region (&Region::lower);
2409 }
2410
2411 void
2412 Editor::lower_region_to_bottom ()
2413 {
2414         selection->foreach_region (&Region::lower_to_bottom);
2415 }
2416
2417 /** Show the region editor for the selected regions */
2418 void
2419 Editor::edit_region ()
2420 {
2421         selection->foreach_regionview (&RegionView::show_region_editor);
2422 }
2423
2424 void
2425 Editor::rename_region()
2426 {
2427         RegionSelection rs;
2428
2429         get_regions_for_action (rs);
2430
2431         if (rs.empty()) {
2432                 return;
2433         }
2434
2435         WindowTitle title (Glib::get_application_name());
2436         title += _("Rename Region");
2437
2438         ArdourDialog d (*this, title.get_string(), true, false);
2439         Entry entry;
2440         Label label (_("New name:"));
2441         HBox hbox;
2442
2443         hbox.set_spacing (6);
2444         hbox.pack_start (label, false, false);
2445         hbox.pack_start (entry, true, true);
2446
2447         d.get_vbox()->set_border_width (12);
2448         d.get_vbox()->pack_start (hbox, false, false);
2449
2450         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2451         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2452
2453         d.set_size_request (300, -1);
2454         d.set_position (Gtk::WIN_POS_MOUSE);
2455
2456         entry.set_text (rs.front()->region()->name());
2457         entry.select_region (0, -1);
2458
2459         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2460
2461         d.show_all ();
2462
2463         entry.grab_focus();
2464
2465         int ret = d.run();
2466
2467         d.hide ();
2468
2469         if (ret == RESPONSE_OK) {
2470                 std::string str = entry.get_text();
2471                 strip_whitespace_edges (str);
2472                 if (!str.empty()) {
2473                         rs.front()->region()->set_name (str);
2474                         redisplay_regions ();
2475                 }
2476         }
2477 }
2478
2479 void
2480 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2481 {
2482         if (session->is_auditioning()) {
2483                 session->cancel_audition ();
2484         }
2485
2486         // note: some potential for creativity here, because region doesn't
2487         // have to belong to the playlist that Route is handling
2488
2489         // bool was_soloed = route.soloed();
2490
2491         route.set_solo (true, this);
2492
2493         session->request_bounded_roll (region->position(), region->position() + region->length());
2494
2495         /* XXX how to unset the solo state ? */
2496 }
2497
2498 /** Start an audition of the first selected region */
2499 void
2500 Editor::play_edit_range ()
2501 {
2502         nframes64_t start, end;
2503
2504         if (get_edit_op_range (start, end)) {
2505                 session->request_bounded_roll (start, end);
2506         }
2507 }
2508
2509 void
2510 Editor::play_selected_region ()
2511 {
2512         nframes64_t start = max_frames;
2513         nframes64_t end = 0;
2514         RegionSelection rs;
2515
2516         get_regions_for_action (rs);
2517
2518         if (rs.empty()) {
2519                 return;
2520         }
2521
2522         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2523                 if ((*i)->region()->position() < start) {
2524                         start = (*i)->region()->position();
2525                 }
2526                 if ((*i)->region()->last_frame() + 1 > end) {
2527                         end = (*i)->region()->last_frame() + 1;
2528                 }
2529         }
2530
2531         session->request_stop ();
2532         session->request_bounded_roll (start, end);
2533 }
2534
2535 void
2536 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2537 {
2538         session->audition_region (region);
2539 }
2540
2541 void
2542 Editor::build_interthread_progress_window ()
2543 {
2544         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2545
2546         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2547
2548         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2549         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2550
2551         // GTK2FIX: this button needs a modifiable label
2552
2553         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2554         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2555
2556         interthread_cancel_button.add (interthread_cancel_label);
2557
2558         interthread_progress_window->set_default_size (200, 100);
2559 }
2560
2561 void
2562 Editor::interthread_cancel_clicked ()
2563 {
2564         if (current_interthread_info) {
2565                 current_interthread_info->cancel = true;
2566         }
2567 }
2568
2569 void
2570 Editor::region_from_selection ()
2571 {
2572         if (clicked_axisview == 0) {
2573                 return;
2574         }
2575
2576         if (selection->time.empty()) {
2577                 return;
2578         }
2579
2580         nframes_t start = selection->time[clicked_selection].start;
2581         nframes_t end = selection->time[clicked_selection].end;
2582
2583         nframes_t selection_cnt = end - start + 1;
2584
2585         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2586                 boost::shared_ptr<AudioRegion> current;
2587                 boost::shared_ptr<Region> current_r;
2588                 boost::shared_ptr<Playlist> pl;
2589
2590                 nframes_t internal_start;
2591                 string new_name;
2592
2593                 if ((pl = (*i)->playlist()) == 0) {
2594                         continue;
2595                 }
2596
2597                 if ((current_r = pl->top_region_at (start)) == 0) {
2598                         continue;
2599                 }
2600
2601                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2602                 assert(current); // FIXME
2603                 if (current != 0) {
2604                         internal_start = start - current->position();
2605                         session->region_name (new_name, current->name(), true);
2606                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2607                 }
2608         }
2609 }
2610
2611 void
2612 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2613 {
2614         if (selection->time.empty() || selection->tracks.empty()) {
2615                 return;
2616         }
2617
2618         nframes_t start = selection->time[clicked_selection].start;
2619         nframes_t end = selection->time[clicked_selection].end;
2620
2621         sort_track_selection ();
2622
2623         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2624
2625                 boost::shared_ptr<AudioRegion> current;
2626                 boost::shared_ptr<Region> current_r;
2627                 boost::shared_ptr<Playlist> playlist;
2628                 nframes_t internal_start;
2629                 string new_name;
2630
2631                 if ((playlist = (*i)->playlist()) == 0) {
2632                         continue;
2633                 }
2634
2635                 if ((current_r = playlist->top_region_at(start)) == 0) {
2636                         continue;
2637                 }
2638
2639                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2640                         continue;
2641                 }
2642
2643                 internal_start = start - current->position();
2644                 session->region_name (new_name, current->name(), true);
2645
2646                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2647         }
2648 }
2649
2650 void
2651 Editor::split_multichannel_region ()
2652 {
2653         RegionSelection rs;
2654
2655         get_regions_for_action (rs);
2656
2657         if (rs.empty()) {
2658                 return;
2659         }
2660
2661         vector<boost::shared_ptr<AudioRegion> > v;
2662
2663         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2664
2665                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2666
2667                 if (!arv || arv->audio_region()->n_channels() < 2) {
2668                         continue;
2669                 }
2670
2671                 (arv)->audio_region()->separate_by_channel (*session, v);
2672         }
2673 }
2674
2675 void
2676 Editor::new_region_from_selection ()
2677 {
2678         region_from_selection ();
2679         cancel_selection ();
2680 }
2681
2682 static void
2683 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2684 {
2685         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2686         case OverlapNone:
2687                 break;
2688         default:
2689                 rs->push_back (rv);
2690         }
2691 }
2692
2693 void
2694 Editor::separate_regions_between (const TimeSelection& ts)
2695 {
2696         bool in_command = false;
2697         boost::shared_ptr<Playlist> playlist;
2698         RegionSelection new_selection;
2699         TrackSelection tmptracks;
2700
2701         if (selection->tracks.empty()) {
2702
2703                 /* use tracks with selected regions */
2704
2705                 RegionSelection rs;
2706
2707                 get_regions_for_action (rs);
2708
2709                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2710                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2711
2712                         if (find (tmptracks.begin(), tmptracks.end(), tv) == tmptracks.end()) {
2713                                 tmptracks.push_back (tv);
2714                         }
2715                 }
2716
2717                 if (tmptracks.empty()) {
2718                         /* no regions selected: do nothing */
2719                         return;
2720                 }
2721
2722         } else {
2723
2724                 tmptracks = selection->tracks;
2725
2726         }
2727
2728         sort_track_selection (&tmptracks);
2729
2730
2731
2732
2733         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2734
2735                 RouteTimeAxisView* rtv;
2736
2737                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2738
2739                         if (rtv->is_track()) {
2740
2741                                 /* no edits to destructive tracks */
2742
2743                                 if (rtv->track()->diskstream()->destructive()) {
2744                                         continue;
2745                                 }
2746
2747                                 if ((playlist = rtv->playlist()) != 0) {
2748
2749                                         XMLNode *before;
2750                                         bool got_some;
2751
2752                                         before = &(playlist->get_state());
2753                                         got_some = false;
2754
2755                                         /* XXX need to consider musical time selections here at some point */
2756
2757                                         double speed = rtv->get_diskstream()->speed();
2758
2759
2760                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2761
2762                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2763                                                 latest_regionviews.clear ();
2764
2765                                                 playlist->partition ((nframes_t)((*t).start * speed), (nframes_t)((*t).end * speed), true);
2766
2767                                                 c.disconnect ();
2768
2769                                                 if (!latest_regionviews.empty()) {
2770
2771                                                         got_some = true;
2772
2773                                                         rtv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2774
2775                                                         if (!in_command) {
2776                                                                 begin_reversible_command (_("separate"));
2777                                                                 in_command = true;
2778                                                         }
2779
2780                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2781
2782                                                 }
2783                                         }
2784
2785                                         if (!got_some) {
2786                                                 delete before;
2787                                         }
2788                                 }
2789                         }
2790                 }
2791         }
2792
2793         if (in_command) {
2794                 selection->set (new_selection);
2795                 set_mouse_mode (MouseObject);
2796
2797                 commit_reversible_command ();
2798         }
2799 }
2800
2801 void
2802 Editor::separate_region_from_selection ()
2803 {
2804         /* preferentially use *all* ranges in the time selection if we're in range mode
2805            to allow discontiguous operation, since get_edit_op_range() currently
2806            returns a single range.
2807         */
2808         if (mouse_mode == MouseRange && !selection->time.empty()) {
2809
2810                 separate_regions_between (selection->time);
2811
2812         } else {
2813
2814                 nframes64_t start;
2815                 nframes64_t end;
2816
2817                 if (get_edit_op_range (start, end)) {
2818
2819                         AudioRange ar (start, end, 1);
2820                         TimeSelection ts;
2821                         ts.push_back (ar);
2822
2823                         separate_regions_between (ts);
2824                 }
2825         }
2826 }
2827
2828 void
2829 Editor::separate_region_from_punch ()
2830 {
2831         Location* loc  = session->locations()->auto_punch_location();
2832         if (loc) {
2833                 separate_regions_using_location (*loc);
2834         }
2835 }
2836
2837 void
2838 Editor::separate_region_from_loop ()
2839 {
2840         Location* loc  = session->locations()->auto_loop_location();
2841         if (loc) {
2842                 separate_regions_using_location (*loc);
2843         }
2844 }
2845
2846 void
2847 Editor::separate_regions_using_location (Location& loc)
2848 {
2849         if (loc.is_mark()) {
2850                 return;
2851         }
2852
2853         AudioRange ar (loc.start(), loc.end(), 1);
2854         TimeSelection ts;
2855
2856         ts.push_back (ar);
2857
2858         separate_regions_between (ts);
2859 }
2860
2861 void
2862 Editor::crop_region_to_selection ()
2863 {
2864         if (!selection->time.empty()) {
2865
2866                 crop_region_to (selection->time.start(), selection->time.end_frame());
2867
2868         } else {
2869
2870                 nframes64_t start;
2871                 nframes64_t end;
2872
2873                 if (get_edit_op_range (start, end)) {
2874                         crop_region_to (start, end);
2875                 }
2876         }
2877
2878 }
2879
2880 void
2881 Editor::crop_region_to (nframes_t start, nframes_t end)
2882 {
2883         vector<boost::shared_ptr<Playlist> > playlists;
2884         boost::shared_ptr<Playlist> playlist;
2885         TrackSelection* ts;
2886
2887         if (selection->tracks.empty()) {
2888                 ts = &track_views;
2889         } else {
2890                 sort_track_selection ();
2891                 ts = &selection->tracks;
2892         }
2893
2894         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2895
2896                 RouteTimeAxisView* rtv;
2897
2898                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2899
2900                         boost::shared_ptr<Track> t = rtv->track();
2901
2902                         if (t != 0 && ! t->diskstream()->destructive()) {
2903
2904                                 if ((playlist = rtv->playlist()) != 0) {
2905                                         playlists.push_back (playlist);
2906                                 }
2907                         }
2908                 }
2909         }
2910
2911         if (playlists.empty()) {
2912                 return;
2913         }
2914
2915         nframes_t the_start;
2916         nframes_t the_end;
2917         nframes_t cnt;
2918
2919         begin_reversible_command (_("trim to selection"));
2920
2921         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2922
2923                 boost::shared_ptr<Region> region;
2924
2925                 the_start = start;
2926
2927                 if ((region = (*i)->top_region_at(the_start)) == 0) {
2928                         continue;
2929                 }
2930
2931                 /* now adjust lengths to that we do the right thing
2932                    if the selection extends beyond the region
2933                 */
2934
2935                 the_start = max (the_start, region->position());
2936                 if (max_frames - the_start < region->length()) {
2937                         the_end = the_start + region->length() - 1;
2938                 } else {
2939                         the_end = max_frames;
2940                 }
2941                 the_end = min (end, the_end);
2942                 cnt = the_end - the_start + 1;
2943
2944                 XMLNode &before = (*i)->get_state();
2945                 region->trim_to (the_start, cnt, this);
2946                 XMLNode &after = (*i)->get_state();
2947                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
2948         }
2949
2950         commit_reversible_command ();
2951 }
2952
2953 void
2954 Editor::region_fill_track ()
2955 {
2956         nframes_t end;
2957         RegionSelection rs;
2958
2959         get_regions_for_action (rs);
2960
2961         if (!session || rs.empty()) {
2962                 return;
2963         }
2964
2965         end = session->current_end_frame ();
2966
2967         begin_reversible_command (_("region fill"));
2968
2969         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2970
2971                 boost::shared_ptr<Region> region ((*i)->region());
2972
2973                 // FIXME
2974                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
2975                 assert(ar);
2976
2977                 boost::shared_ptr<Playlist> pl = region->playlist();
2978
2979                 if (end <= region->last_frame()) {
2980                         return;
2981                 }
2982
2983                 double times = (double) (end - region->last_frame()) / (double) region->length();
2984
2985                 if (times == 0) {
2986                         return;
2987                 }
2988
2989                 XMLNode &before = pl->get_state();
2990                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
2991                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
2992         }
2993
2994         commit_reversible_command ();
2995 }
2996
2997 void
2998 Editor::region_fill_selection ()
2999 {
3000         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3001                 return;
3002         }
3003
3004         if (selection->time.empty()) {
3005                 return;
3006         }
3007
3008
3009         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
3010
3011         if (selected->count_selected_rows() != 1) {
3012                 return;
3013         }
3014
3015         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
3016         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
3017
3018         nframes_t start = selection->time[clicked_selection].start;
3019         nframes_t end = selection->time[clicked_selection].end;
3020
3021         boost::shared_ptr<Playlist> playlist;
3022
3023         if (selection->tracks.empty()) {
3024                 return;
3025         }
3026
3027         nframes_t selection_length = end - start;
3028         float times = (float)selection_length / region->length();
3029
3030         begin_reversible_command (_("fill selection"));
3031
3032         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3033
3034                 if ((playlist = (*i)->playlist()) == 0) {
3035                         continue;
3036                 }
3037
3038                 XMLNode &before = playlist->get_state();
3039                 playlist->add_region (RegionFactory::create (region), start, times);
3040                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3041         }
3042
3043         commit_reversible_command ();
3044 }
3045
3046 void
3047 Editor::set_region_sync_from_edit_point ()
3048 {
3049         nframes64_t where = get_preferred_edit_position ();
3050         RegionSelection rs;
3051         get_regions_for_action (rs);
3052         set_sync_point (where, rs);
3053 }
3054
3055 void
3056 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3057 {
3058         bool in_command = false;
3059
3060         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3061
3062                 if (!(*r)->region()->covers (where)) {
3063                         continue;
3064                 }
3065
3066                 boost::shared_ptr<Region> region ((*r)->region());
3067
3068                 if (!in_command) {
3069                         begin_reversible_command (_("set sync point"));
3070                         in_command = true;
3071                 }
3072
3073                 XMLNode &before = region->playlist()->get_state();
3074                 region->set_sync_position (get_preferred_edit_position());
3075                 XMLNode &after = region->playlist()->get_state();
3076                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3077         }
3078
3079         if (in_command) {
3080                 commit_reversible_command ();
3081         }
3082 }
3083
3084 /** Remove the sync positions of the selection */
3085 void
3086 Editor::remove_region_sync ()
3087 {
3088         begin_reversible_command (_("remove sync"));
3089
3090         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
3091                 boost::shared_ptr<Region> r = (*i)->region();
3092                 XMLNode &before = r->playlist()->get_state();
3093                 r->clear_sync_position ();
3094                 XMLNode &after = r->playlist()->get_state();
3095                 session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3096         }
3097
3098         commit_reversible_command ();
3099 }
3100
3101 void
3102 Editor::naturalize ()
3103 {
3104         RegionSelection rs;
3105
3106         get_regions_for_action (rs);
3107
3108         if (rs.empty()) {
3109                 return;
3110         }
3111
3112         begin_reversible_command (_("naturalize"));
3113         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3114                 XMLNode &before = (*i)->region()->get_state();
3115                 (*i)->region()->move_to_natural_position (this);
3116                 XMLNode &after = (*i)->region()->get_state();
3117                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3118         }
3119         commit_reversible_command ();
3120 }
3121
3122 void
3123 Editor::align (RegionPoint what)
3124 {
3125         RegionSelection rs;
3126
3127         get_regions_for_action (rs);
3128         nframes64_t where = get_preferred_edit_position();
3129
3130         if (!rs.empty()) {
3131                 align_selection (what, where, rs);
3132         } else {
3133
3134                 RegionSelection rs;
3135                 get_regions_at (rs, where, selection->tracks);
3136                 align_selection (what, where, rs);
3137         }
3138 }
3139
3140 void
3141 Editor::align_relative (RegionPoint what)
3142 {
3143         nframes64_t where = get_preferred_edit_position();
3144         RegionSelection rs;
3145
3146         get_regions_for_action (rs);
3147
3148         if (!rs.empty()) {
3149                 align_selection_relative (what, where, rs);
3150         }
3151 }
3152
3153 struct RegionSortByTime {
3154     bool operator() (const RegionView* a, const RegionView* b) {
3155             return a->region()->position() < b->region()->position();
3156     }
3157 };
3158
3159 void
3160 Editor::align_selection_relative (RegionPoint point, nframes_t position, const RegionSelection& rs)
3161 {
3162         if (rs.empty()) {
3163                 return;
3164         }
3165
3166         nframes_t distance = 0;
3167         nframes_t pos = 0;
3168         int dir = 0;
3169
3170         list<RegionView*> sorted;
3171         rs.by_position (sorted);
3172         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3173
3174         switch (point) {
3175         case Start:
3176                 pos = position;
3177                 if (position > r->position()) {
3178                         distance = position - r->position();
3179                         dir = 1;
3180                 } else {
3181                         distance = r->position() - position;
3182                         dir = -1;
3183                 }
3184                 break;
3185
3186         case End:
3187                 if (position > r->last_frame()) {
3188                         distance = position - r->last_frame();
3189                         pos = r->position() + distance;
3190                         dir = 1;
3191                 } else {
3192                         distance = r->last_frame() - position;
3193                         pos = r->position() - distance;
3194                         dir = -1;
3195                 }
3196                 break;
3197
3198         case SyncPoint:
3199                 pos = r->adjust_to_sync (position);
3200                 if (pos > r->position()) {
3201                         distance = pos - r->position();
3202                         dir = 1;
3203                 } else {
3204                         distance = r->position() - pos;
3205                         dir = -1;
3206                 }
3207                 break;
3208         }
3209
3210         if (pos == r->position()) {
3211                 return;
3212         }
3213
3214         begin_reversible_command (_("align selection (relative)"));
3215
3216         /* move first one specially */
3217
3218         XMLNode &before = r->playlist()->get_state();
3219         r->set_position (pos, this);
3220         XMLNode &after = r->playlist()->get_state();
3221         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3222
3223         /* move rest by the same amount */
3224
3225         sorted.pop_front();
3226
3227         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3228
3229                 boost::shared_ptr<Region> region ((*i)->region());
3230
3231                 XMLNode &before = region->playlist()->get_state();
3232
3233                 if (dir > 0) {
3234                         region->set_position (region->position() + distance, this);
3235                 } else {
3236                         region->set_position (region->position() - distance, this);
3237                 }
3238
3239                 XMLNode &after = region->playlist()->get_state();
3240                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3241
3242         }
3243
3244         commit_reversible_command ();
3245 }
3246
3247 void
3248 Editor::align_selection (RegionPoint point, nframes_t position, const RegionSelection& rs)
3249 {
3250         if (rs.empty()) {
3251                 return;
3252         }
3253
3254         begin_reversible_command (_("align selection"));
3255
3256         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3257                 align_region_internal ((*i)->region(), point, position);
3258         }
3259
3260         commit_reversible_command ();
3261 }
3262
3263 void
3264 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes_t position)
3265 {
3266         begin_reversible_command (_("align region"));
3267         align_region_internal (region, point, position);
3268         commit_reversible_command ();
3269 }
3270
3271 void
3272 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes_t position)
3273 {
3274         XMLNode &before = region->playlist()->get_state();
3275
3276         switch (point) {
3277         case SyncPoint:
3278                 region->set_position (region->adjust_to_sync (position), this);
3279                 break;
3280
3281         case End:
3282                 if (position > region->length()) {
3283                         region->set_position (position - region->length(), this);
3284                 }
3285                 break;
3286
3287         case Start:
3288                 region->set_position (position, this);
3289                 break;
3290         }
3291
3292         XMLNode &after = region->playlist()->get_state();
3293         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3294 }
3295
3296 /** Trim the end of the selected regions to the position of the edit cursor */
3297 void
3298 Editor::trim_region_to_loop ()
3299 {
3300         Location* loc = session->locations()->auto_loop_location();
3301         if (!loc) {
3302                 return;
3303         }
3304         trim_region_to_location (*loc, _("trim to loop"));
3305 }
3306
3307 void
3308 Editor::trim_region_to_punch ()
3309 {
3310         Location* loc = session->locations()->auto_punch_location();
3311         if (!loc) {
3312                 return;
3313         }
3314         trim_region_to_location (*loc, _("trim to punch"));
3315 }
3316 void
3317 Editor::trim_region_to_location (const Location& loc, const char* str)
3318 {
3319         RegionSelection rs;
3320
3321         get_regions_for_action (rs);
3322
3323         begin_reversible_command (str);
3324
3325         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3326                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3327
3328                 if (!arv) {
3329                         continue;
3330                 }
3331
3332                 /* require region to span proposed trim */
3333
3334                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3335                 case OverlapInternal:
3336                         break;
3337                 default:
3338                         continue;
3339                 }
3340
3341                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3342
3343                 if (!atav) {
3344                         return;
3345                 }
3346
3347                 float speed = 1.0;
3348                 nframes_t start;
3349                 nframes_t end;
3350
3351                 if (atav->get_diskstream() != 0) {
3352                         speed = atav->get_diskstream()->speed();
3353                 }
3354
3355                 start = session_frame_to_track_frame (loc.start(), speed);
3356                 end = session_frame_to_track_frame (loc.end(), speed);
3357
3358                 XMLNode &before = arv->region()->playlist()->get_state();
3359                 arv->region()->trim_to (start, (end - start), this);
3360                 XMLNode &after = arv->region()->playlist()->get_state();
3361                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3362         }
3363
3364         commit_reversible_command ();
3365 }
3366
3367 void
3368 Editor::trim_region_to_edit_point ()
3369 {
3370         RegionSelection rs;
3371
3372         get_regions_for_action (rs);
3373
3374         nframes64_t where = get_preferred_edit_position();
3375
3376         begin_reversible_command (_("trim region start to edit point"));
3377
3378         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3379                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3380
3381                 if (!arv) {
3382                         continue;
3383                 }
3384
3385                 /* require region to cover trim */
3386
3387                 if (!arv->region()->covers (where)) {
3388                         continue;
3389                 }
3390
3391                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3392
3393                 if (!atav) {
3394                         return;
3395                 }
3396
3397                 float speed = 1.0;
3398
3399                 if (atav->get_diskstream() != 0) {
3400                         speed = atav->get_diskstream()->speed();
3401                 }
3402
3403                 XMLNode &before = arv->region()->playlist()->get_state();
3404                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3405                 XMLNode &after = arv->region()->playlist()->get_state();
3406                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3407         }
3408
3409         commit_reversible_command ();
3410 }
3411
3412 void
3413 Editor::trim_region_from_edit_point ()
3414 {
3415         RegionSelection rs;
3416
3417         get_regions_for_action (rs);
3418
3419         nframes64_t where = get_preferred_edit_position();
3420
3421         begin_reversible_command (_("trim region end to edit point"));
3422
3423         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3424                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3425
3426                 if (!arv) {
3427                         continue;
3428                 }
3429
3430                 /* require region to cover trim */
3431
3432                 if (!arv->region()->covers (where)) {
3433                         continue;
3434                 }
3435
3436                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3437
3438                 if (!atav) {
3439                         return;
3440                 }
3441
3442                 float speed = 1.0;
3443
3444                 if (atav->get_diskstream() != 0) {
3445                         speed = atav->get_diskstream()->speed();
3446                 }
3447
3448                 XMLNode &before = arv->region()->playlist()->get_state();
3449                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3450                 XMLNode &after = arv->region()->playlist()->get_state();
3451                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3452         }
3453
3454         commit_reversible_command ();
3455 }
3456
3457 void
3458 Editor::unfreeze_route ()
3459 {
3460         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3461                 return;
3462         }
3463
3464         clicked_routeview->audio_track()->unfreeze ();
3465 }
3466
3467 void*
3468 Editor::_freeze_thread (void* arg)
3469 {
3470         PBD::ThreadCreated (pthread_self(), X_("Freeze"));
3471         return static_cast<Editor*>(arg)->freeze_thread ();
3472 }
3473
3474 void*
3475 Editor::freeze_thread ()
3476 {
3477         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3478         return 0;
3479 }
3480
3481 gint
3482 Editor::freeze_progress_timeout (void *arg)
3483 {
3484         interthread_progress_bar.set_fraction (current_interthread_info->progress/100);
3485         return !(current_interthread_info->done || current_interthread_info->cancel);
3486 }
3487
3488 void
3489 Editor::freeze_route ()
3490 {
3491         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3492                 return;
3493         }
3494
3495         InterThreadInfo itt;
3496
3497         if (interthread_progress_window == 0) {
3498                 build_interthread_progress_window ();
3499         }
3500
3501         WindowTitle title(Glib::get_application_name());
3502         title += _("Freeze");
3503         interthread_progress_window->set_title (title.get_string());
3504         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3505         interthread_progress_window->show_all ();
3506         interthread_progress_bar.set_fraction (0.0f);
3507         interthread_progress_label.set_text ("");
3508         interthread_cancel_label.set_text (_("Cancel Freeze"));
3509         current_interthread_info = &itt;
3510
3511         interthread_progress_connection =
3512           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3513
3514         itt.done = false;
3515         itt.cancel = false;
3516         itt.progress = 0.0f;
3517
3518         pthread_attr_t attr;
3519         pthread_attr_init(&attr);
3520         pthread_attr_setstacksize(&attr, 500000);
3521
3522         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3523
3524         pthread_attr_destroy(&attr);
3525
3526         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3527
3528         while (!itt.done && !itt.cancel) {
3529                 gtk_main_iteration ();
3530         }
3531
3532         interthread_progress_connection.disconnect ();
3533         interthread_progress_window->hide_all ();
3534         current_interthread_info = 0;
3535         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3536 }
3537
3538 void
3539 Editor::bounce_range_selection ()
3540 {
3541         if (selection->time.empty()) {
3542                 return;
3543         }
3544
3545         TrackSelection views = selection->tracks;
3546
3547         nframes_t start = selection->time[clicked_selection].start;
3548         nframes_t end = selection->time[clicked_selection].end;
3549         nframes_t cnt = end - start + 1;
3550
3551         begin_reversible_command (_("bounce range"));
3552
3553         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3554
3555                 RouteTimeAxisView* rtv;
3556
3557                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3558                         continue;
3559                 }
3560
3561                 boost::shared_ptr<Playlist> playlist;
3562
3563                 if ((playlist = rtv->playlist()) == 0) {
3564                         return;
3565                 }
3566
3567                 InterThreadInfo itt;
3568
3569                 itt.done = false;
3570                 itt.cancel = false;
3571                 itt.progress = false;
3572
3573                 XMLNode &before = playlist->get_state();
3574                 rtv->track()->bounce_range (start, cnt, itt);
3575                 XMLNode &after = playlist->get_state();
3576                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3577         }
3578
3579         commit_reversible_command ();
3580 }
3581
3582 /** Cut selected regions, automation points or a time range */
3583 void
3584 Editor::cut ()
3585 {
3586         cut_copy (Cut);
3587 }
3588
3589 /** Copy selected regions, automation points or a time range */
3590 void
3591 Editor::copy ()
3592 {
3593         cut_copy (Copy);
3594 }
3595
3596
3597 /** @return true if a Cut, Copy or Clear is possible */
3598 bool
3599 Editor::can_cut_copy () const
3600 {
3601         switch (current_mouse_mode()) {
3602
3603         case MouseObject:
3604                 if (!selection->regions.empty() || !selection->points.empty()) {
3605                         return true;
3606                 }
3607                 break;
3608
3609         case MouseRange:
3610                 if (!selection->time.empty()) {
3611                         return true;
3612                 }
3613                 break;
3614
3615         default:
3616                 break;
3617         }
3618
3619         return false;
3620 }
3621
3622
3623 /** Cut, copy or clear selected regions, automation points or a time range.
3624  * @param op Operation (Cut, Copy or Clear)
3625  */
3626 void
3627 Editor::cut_copy (CutCopyOp op)
3628 {
3629         /* only cancel selection if cut/copy is successful.*/
3630
3631         string opname;
3632
3633         switch (op) {
3634         case Cut:
3635                 opname = _("cut");
3636                 break;
3637         case Copy:
3638                 opname = _("copy");
3639                 break;
3640         case Clear:
3641                 opname = _("clear");
3642                 break;
3643         }
3644
3645         cut_buffer->clear ();
3646
3647         if (entered_marker) {
3648
3649                 /* cut/delete op while pointing at a marker */
3650
3651                 bool ignored;
3652                 Location* loc = find_location_from_marker (entered_marker, ignored);
3653
3654                 if (session && loc) {
3655                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3656                 }
3657
3658                 return;
3659         }
3660
3661         RegionSelection rs;
3662
3663         /* we only want to cut regions if some are selected */
3664
3665         if (!selection->regions.empty()) {
3666                 get_regions_for_action (rs);
3667         }
3668
3669         switch (current_mouse_mode()) {
3670         case MouseObject:
3671                 if (!rs.empty() || !selection->points.empty()) {
3672
3673                         begin_reversible_command (opname + _(" objects"));
3674
3675                         if (!rs.empty()) {
3676                                 cut_copy_regions (op, rs);
3677
3678                                 if (op == Cut) {
3679                                         selection->clear_regions ();
3680                                 }
3681                         }
3682
3683                         if (!selection->points.empty()) {
3684                                 cut_copy_points (op);
3685
3686                                 if (op == Cut) {
3687                                         selection->clear_points ();
3688                                 }
3689                         }
3690
3691                         commit_reversible_command ();
3692                         break; // terminate case statement here
3693                 }
3694                 if (!selection->time.empty()) {
3695                         /* don't cause suprises */
3696                         break;
3697                 }
3698                 // fall thru if there was nothing selected
3699
3700         case MouseRange:
3701                 if (selection->time.empty()) {
3702                         nframes64_t start, end;
3703                         if (!get_edit_op_range (start, end)) {
3704                                 return;
3705                         }
3706                         selection->set ((TimeAxisView*) 0, start, end);
3707                 }
3708
3709                 begin_reversible_command (opname + _(" range"));
3710                 cut_copy_ranges (op);
3711                 commit_reversible_command ();
3712
3713                 if (op == Cut) {
3714                         selection->clear_time ();
3715                 }
3716
3717                 break;
3718
3719         default:
3720                 break;
3721         }
3722 }
3723
3724 /** Cut, copy or clear selected automation points.
3725  * @param op Operation (Cut, Copy or Clear)
3726  */
3727 void
3728 Editor::cut_copy_points (CutCopyOp op)
3729 {
3730         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3731
3732                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3733
3734                 if (atv) {
3735                         atv->cut_copy_clear_objects (selection->points, op);
3736                 }
3737         }
3738 }
3739
3740 struct PlaylistState {
3741     boost::shared_ptr<Playlist> playlist;
3742     XMLNode*  before;
3743 };
3744
3745 struct lt_playlist {
3746     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3747             return a.playlist < b.playlist;
3748     }
3749 };
3750
3751 struct PlaylistMapping {
3752     TimeAxisView* tv;
3753     boost::shared_ptr<Playlist> pl;
3754
3755     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3756 };
3757
3758
3759 /** Cut, copy or clear selected regions.
3760  * @param op Operation (Cut, Copy or Clear)
3761  */
3762 void
3763 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3764 {
3765         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3766            a map when we want ordered access to both elements. i think.
3767         */
3768
3769         vector<PlaylistMapping> pmap;
3770
3771         nframes_t first_position = max_frames;
3772
3773         set<PlaylistState, lt_playlist> freezelist;
3774         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3775
3776         /* get ordering correct before we cut/copy */
3777
3778         rs.sort_by_position_and_track ();
3779
3780         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3781
3782                 first_position = min ((*x)->region()->position(), first_position);
3783
3784                 if (op == Cut || op == Clear) {
3785                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
3786
3787                         if (pl) {
3788
3789                                 PlaylistState before;
3790                                 before.playlist = pl;
3791                                 before.before = &pl->get_state();
3792
3793                                 insert_result = freezelist.insert (before);
3794
3795                                 if (insert_result.second) {
3796                                         pl->freeze ();
3797                                 }
3798                         }
3799                 }
3800
3801                 TimeAxisView* tv = &(*x)->get_trackview();
3802                 vector<PlaylistMapping>::iterator z;
3803
3804                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3805                         if ((*z).tv == tv) {
3806                                 break;
3807                         }
3808                 }
3809
3810                 if (z == pmap.end()) {
3811                         pmap.push_back (PlaylistMapping (tv));
3812                 }
3813         }
3814
3815         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3816
3817                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
3818
3819                 if (!pl) {
3820                         /* impossible, but this handles it for the future */
3821                         continue;
3822                 }
3823
3824                 TimeAxisView& tv = (*x)->get_trackview();
3825                 boost::shared_ptr<Playlist> npl;
3826                 RegionSelection::iterator tmp;
3827
3828                 tmp = x;
3829                 ++tmp;
3830
3831                 vector<PlaylistMapping>::iterator z;
3832
3833                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3834                         if ((*z).tv == &tv) {
3835                                 break;
3836                         }
3837                 }
3838
3839                 assert (z != pmap.end());
3840
3841                 if (!(*z).pl) {
3842                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
3843                         npl->freeze();
3844                         (*z).pl = npl;
3845                 } else {
3846                         npl = (*z).pl;
3847                 }
3848
3849                 boost::shared_ptr<Region> r = (*x)->region();
3850                 boost::shared_ptr<Region> _xx;
3851
3852                 assert (r != 0);
3853
3854                 switch (op) {
3855                 case Cut:
3856                         _xx = RegionFactory::create (r);
3857                         npl->add_region (_xx, r->position() - first_position);
3858                         pl->remove_region (r);
3859                         break;
3860
3861                 case Copy:
3862                         /* copy region before adding, so we're not putting same object into two different playlists */
3863                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
3864                         break;
3865
3866                 case Clear:
3867                         pl->remove_region (r);
3868                         break;
3869                 }
3870
3871                 x = tmp;
3872         }
3873
3874         list<boost::shared_ptr<Playlist> > foo;
3875
3876         /* the pmap is in the same order as the tracks in which selected regions occured */
3877
3878         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3879                 (*i).pl->thaw();
3880                 foo.push_back ((*i).pl);
3881         }
3882
3883
3884         if (!foo.empty()) {
3885                 cut_buffer->set (foo);
3886         }
3887
3888         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3889                 (*pl).playlist->thaw ();
3890                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
3891         }
3892 }
3893
3894 void
3895 Editor::cut_copy_ranges (CutCopyOp op)
3896 {
3897         TrackSelection* ts;
3898         TrackSelection entered;
3899
3900         if (selection->tracks.empty()) {
3901                 if (!entered_track) {
3902                         return;
3903                 }
3904                 entered.push_back (entered_track);
3905                 ts = &entered;
3906         } else {
3907                 ts = &selection->tracks;
3908         }
3909
3910         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3911                 (*i)->cut_copy_clear (*selection, op);
3912         }
3913 }
3914
3915 void
3916 Editor::paste (float times)
3917 {
3918         paste_internal (get_preferred_edit_position(), times);
3919 }
3920
3921 void
3922 Editor::mouse_paste ()
3923 {
3924         nframes64_t where;
3925         bool ignored;
3926
3927         if (!mouse_frame (where, ignored)) {
3928                 return;
3929         }
3930
3931         snap_to (where);
3932         paste_internal (where, 1);
3933 }
3934
3935 void
3936 Editor::paste_internal (nframes_t position, float times)
3937 {
3938         bool commit = false;
3939
3940         if (cut_buffer->empty()) {
3941                 return;
3942         }
3943
3944         if (position == max_frames) {
3945                 position = get_preferred_edit_position();
3946         }
3947
3948         begin_reversible_command (_("paste"));
3949
3950         TrackSelection ts;
3951         TrackSelection::iterator i;
3952         size_t nth;
3953
3954         /* get everything in the correct order */
3955
3956
3957         if (!selection->tracks.empty()) {
3958                 sort_track_selection ();
3959                 ts = selection->tracks;
3960         } else if (entered_track) {
3961                 ts.push_back (entered_track);
3962         }
3963
3964         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
3965
3966                 /* undo/redo is handled by individual tracks */
3967
3968                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
3969                         commit = true;
3970                 }
3971         }
3972
3973         if (commit) {
3974                 commit_reversible_command ();
3975         }
3976 }
3977
3978 void
3979 Editor::paste_named_selection (float times)
3980 {
3981         TrackSelection::iterator t;
3982
3983         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
3984
3985         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
3986                 return;
3987         }
3988
3989         TreeModel::iterator i = selected->get_selected();
3990         NamedSelection* ns = (*i)[named_selection_columns.selection];
3991
3992         list<boost::shared_ptr<Playlist> >::iterator chunk;
3993         list<boost::shared_ptr<Playlist> >::iterator tmp;
3994
3995         chunk = ns->playlists.begin();
3996
3997         begin_reversible_command (_("paste chunk"));
3998
3999         sort_track_selection ();
4000
4001         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4002
4003                 RouteTimeAxisView* rtv;
4004                 boost::shared_ptr<Playlist> pl;
4005                 boost::shared_ptr<AudioPlaylist> apl;
4006
4007                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*t)) == 0) {
4008                         continue;
4009                 }
4010
4011                 if ((pl = rtv->playlist()) == 0) {
4012                         continue;
4013                 }
4014
4015                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4016                         continue;
4017                 }
4018
4019                 tmp = chunk;
4020                 ++tmp;
4021
4022                 XMLNode &before = apl->get_state();
4023                 apl->paste (*chunk, get_preferred_edit_position(), times);
4024                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4025
4026                 if (tmp != ns->playlists.end()) {
4027                         chunk = tmp;
4028                 }
4029         }
4030
4031         commit_reversible_command();
4032 }
4033
4034 void
4035 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4036 {
4037         boost::shared_ptr<Playlist> playlist;
4038         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4039         RegionSelection foo;
4040
4041         begin_reversible_command (_("duplicate region"));
4042
4043         selection->clear_regions ();
4044
4045         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4046
4047                 boost::shared_ptr<Region> r ((*i)->region());
4048
4049                 TimeAxisView& tv = (*i)->get_time_axis_view();
4050                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4051                 latest_regionviews.clear ();
4052                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4053
4054                 playlist = (*i)->region()->playlist();
4055                 XMLNode &before = playlist->get_state();
4056                 playlist->duplicate (r, r->last_frame(), times);
4057                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4058
4059                 c.disconnect ();
4060
4061                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4062         }
4063
4064         commit_reversible_command ();
4065
4066         if (!foo.empty()) {
4067                 selection->set (foo);
4068         }
4069 }
4070
4071 void
4072 Editor::duplicate_selection (float times)
4073 {
4074         if (selection->time.empty() || selection->tracks.empty()) {
4075                 return;
4076         }
4077
4078         boost::shared_ptr<Playlist> playlist;
4079         vector<boost::shared_ptr<Region> > new_regions;
4080         vector<boost::shared_ptr<Region> >::iterator ri;
4081
4082         create_region_from_selection (new_regions);
4083
4084         if (new_regions.empty()) {
4085                 return;
4086         }
4087
4088         begin_reversible_command (_("duplicate selection"));
4089
4090         ri = new_regions.begin();
4091
4092         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4093                 if ((playlist = (*i)->playlist()) == 0) {
4094                         continue;
4095                 }
4096                 XMLNode &before = playlist->get_state();
4097                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4098                 XMLNode &after = playlist->get_state();
4099                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4100
4101                 ++ri;
4102                 if (ri == new_regions.end()) {
4103                         --ri;
4104                 }
4105         }
4106
4107         commit_reversible_command ();
4108 }
4109
4110 void
4111 Editor::reset_point_selection ()
4112 {
4113         /* reset all selected points to the relevant default value */
4114
4115         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4116
4117                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4118
4119                 if (atv) {
4120                         atv->reset_objects (selection->points);
4121                 }
4122         }
4123 }
4124
4125 void
4126 Editor::center_playhead ()
4127 {
4128         float page = canvas_width * frames_per_unit;
4129         center_screen_internal (playhead_cursor->current_frame, page);
4130 }
4131
4132 void
4133 Editor::center_edit_point ()
4134 {
4135         float page = canvas_width * frames_per_unit;
4136         center_screen_internal (get_preferred_edit_position(), page);
4137 }
4138
4139 void
4140 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4141 {
4142         begin_reversible_command (_("clear playlist"));
4143         XMLNode &before = playlist->get_state();
4144         playlist->clear ();
4145         XMLNode &after = playlist->get_state();
4146         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4147         commit_reversible_command ();
4148 }
4149
4150 void
4151 Editor::nudge_track (bool use_edit, bool forwards)
4152 {
4153         boost::shared_ptr<Playlist> playlist;
4154         nframes_t distance;
4155         nframes_t next_distance;
4156         nframes_t start;
4157
4158         if (use_edit) {
4159                 start = get_preferred_edit_position();
4160         } else {
4161                 start = 0;
4162         }
4163
4164         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4165                 return;
4166         }
4167
4168         if (selection->tracks.empty()) {
4169                 return;
4170         }
4171
4172         begin_reversible_command (_("nudge track"));
4173
4174         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4175
4176                 if ((playlist = (*i)->playlist()) == 0) {
4177                         continue;
4178                 }
4179
4180                 XMLNode &before = playlist->get_state();
4181                 playlist->nudge_after (start, distance, forwards);
4182                 XMLNode &after = playlist->get_state();
4183                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4184         }
4185
4186         commit_reversible_command ();
4187 }
4188
4189 void
4190 Editor::remove_last_capture ()
4191 {
4192         vector<string> choices;
4193         string prompt;
4194
4195         if (!session) {
4196                 return;
4197         }
4198
4199         if (Config->get_verify_remove_last_capture()) {
4200                 prompt  = _("Do you really want to destroy the last capture?"
4201                             "\n(This is destructive and cannot be undone)");
4202
4203                 choices.push_back (_("No, do nothing."));
4204                 choices.push_back (_("Yes, destroy it."));
4205
4206                 Gtkmm2ext::Choice prompter (prompt, choices);
4207
4208                 if (prompter.run () == 1) {
4209                         session->remove_last_capture ();
4210                 }
4211
4212         } else {
4213                 session->remove_last_capture();
4214         }
4215 }
4216
4217 void
4218 Editor::normalize_region ()
4219 {
4220         RegionSelection rs;
4221
4222         get_regions_for_action (rs);
4223
4224         if (!session) {
4225                 return;
4226         }
4227
4228         if (rs.empty()) {
4229                 return;
4230         }
4231
4232         begin_reversible_command (_("normalize"));
4233
4234         track_canvas->get_window()->set_cursor (*wait_cursor);
4235         gdk_flush ();
4236
4237         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4238                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4239                 if (!arv)
4240                         continue;
4241                 XMLNode &before = arv->region()->get_state();
4242                 arv->audio_region()->normalize_to (0.0f);
4243                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4244         }
4245
4246         commit_reversible_command ();
4247         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4248 }
4249
4250
4251 void
4252 Editor::denormalize_region ()
4253 {
4254         if (!session) {
4255                 return;
4256         }
4257
4258         RegionSelection rs;
4259
4260         get_regions_for_action (rs);
4261
4262         if (rs.empty()) {
4263                 return;
4264         }
4265
4266         begin_reversible_command ("denormalize");
4267
4268         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4269                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4270                 if (!arv)
4271                         continue;
4272                 XMLNode &before = arv->region()->get_state();
4273                 arv->audio_region()->set_scale_amplitude (1.0f);
4274                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4275         }
4276
4277         commit_reversible_command ();
4278 }
4279
4280 void
4281 Editor::adjust_region_scale_amplitude (bool up)
4282 {
4283         if (!session) {
4284                 return;
4285         }
4286
4287         RegionSelection rs;
4288
4289         get_regions_for_action (rs);
4290
4291         if (rs.empty()) {
4292                 return;
4293         }
4294
4295         begin_reversible_command ("denormalize");
4296
4297         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4298                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4299                 if (!arv)
4300                         continue;
4301                 XMLNode &before = arv->region()->get_state();
4302
4303                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4304
4305                 if (up) {
4306                         fraction += 0.05;
4307                         fraction = min (fraction, 1.0);
4308                 } else {
4309                         fraction -= 0.05;
4310                         fraction = max (fraction, 0.0);
4311                 }
4312
4313                 if (!up && fraction <= 0) {
4314                         continue;
4315                 }
4316
4317                 fraction = slider_position_to_gain (fraction);
4318                 fraction = coefficient_to_dB (fraction);
4319                 fraction = dB_to_coefficient (fraction);
4320
4321                 if (up && fraction >= 2.0) {
4322                         continue;
4323                 }
4324
4325                 arv->audio_region()->set_scale_amplitude (fraction);
4326                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4327         }
4328
4329         commit_reversible_command ();
4330 }
4331
4332
4333 void
4334 Editor::reverse_region ()
4335 {
4336         if (!session) {
4337                 return;
4338         }
4339
4340         Reverse rev (*session);
4341         apply_filter (rev, _("reverse regions"));
4342 }
4343
4344
4345 void
4346 Editor::quantize_region ()
4347 {
4348         if (!session) {
4349                 return;
4350         }
4351
4352         // FIXME: varying meter?
4353         Quantize quant (*session, snap_length_beats(0));
4354         apply_filter (quant, _("quantize regions"));
4355 }
4356
4357 void
4358 Editor::apply_filter (Filter& filter, string command)
4359 {
4360         RegionSelection rs;
4361
4362         get_regions_for_action (rs);
4363
4364         if (rs.empty()) {
4365                 return;
4366         }
4367
4368         begin_reversible_command (command);
4369
4370         track_canvas->get_window()->set_cursor (*wait_cursor);
4371         gdk_flush ();
4372
4373         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4374                 RegionSelection::iterator tmp = r;
4375                 ++tmp;
4376
4377                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4378                 if (mrv) {
4379                         if (mrv->midi_region()->apply(filter) == 0) {
4380                                 mrv->redisplay_model();
4381                         }
4382                 }
4383
4384                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4385                 if (arv) {
4386                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4387
4388                         if (arv->audio_region()->apply (filter) == 0) {
4389
4390                                 XMLNode &before = playlist->get_state();
4391                                 playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4392                                 XMLNode &after = playlist->get_state();
4393                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4394                         } else {
4395                                 goto out;
4396                         }
4397                 }
4398
4399                 r = tmp;
4400         }
4401
4402         commit_reversible_command ();
4403         rs.clear ();
4404
4405   out:
4406         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4407 }
4408
4409 void
4410 Editor::region_selection_op (void (Region::*pmf)(void))
4411 {
4412         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4413                 Region* region = (*i)->region().get();
4414                 (region->*pmf)();
4415         }
4416 }
4417
4418
4419 void
4420 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4421 {
4422         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4423                 Region* region = (*i)->region().get();
4424                 (region->*pmf)(arg);
4425         }
4426 }
4427
4428 void
4429 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4430 {
4431         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4432                 Region* region = (*i)->region().get();
4433                 (region->*pmf)(yn);
4434         }
4435 }
4436
4437 void
4438 Editor::external_edit_region ()
4439 {
4440         /* more to come */
4441 }
4442
4443 void
4444 Editor::brush (nframes_t pos)
4445 {
4446         RegionSelection sel;
4447         RegionSelection rs;
4448
4449         get_regions_for_action (rs);
4450
4451         snap_to (pos);
4452
4453         if (rs.empty()) {
4454                 return;
4455         }
4456
4457         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4458                 mouse_brush_insert_region ((*i), pos);
4459         }
4460 }
4461
4462 void
4463 Editor::reset_region_gain_envelopes ()
4464 {
4465         RegionSelection rs;
4466
4467         get_regions_for_action (rs);
4468
4469         if (!session || rs.empty()) {
4470                 return;
4471         }
4472
4473         session->begin_reversible_command (_("reset region gain"));
4474
4475         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4476                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4477                 if (arv) {
4478                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4479                         XMLNode& before (alist->get_state());
4480
4481                         arv->audio_region()->set_default_envelope ();
4482                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4483                 }
4484         }
4485
4486         session->commit_reversible_command ();
4487 }
4488
4489 void
4490 Editor::toggle_gain_envelope_visibility ()
4491 {
4492         RegionSelection rs;
4493
4494         get_regions_for_action (rs);
4495
4496         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4497                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4498                 if (arv) {
4499                         arv->set_envelope_visible (!arv->envelope_visible());
4500                 }
4501         }
4502 }
4503
4504 void
4505 Editor::toggle_gain_envelope_active ()
4506 {
4507         RegionSelection rs;
4508
4509         get_regions_for_action (rs);
4510
4511         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4512                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4513                 if (arv) {
4514                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4515                 }
4516         }
4517 }
4518
4519 void
4520 Editor::toggle_region_lock ()
4521 {
4522         RegionSelection rs;
4523
4524         get_regions_for_action (rs);
4525
4526         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4527                 (*i)->region()->set_locked (!(*i)->region()->locked());
4528         }
4529 }
4530
4531 void
4532 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4533 {
4534         RegionSelection rs;
4535
4536         get_regions_for_action (rs);
4537
4538         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4539                 (*i)->region()->set_position_lock_style (ps);
4540         }
4541 }
4542
4543
4544 void
4545 Editor::toggle_region_mute ()
4546 {
4547         RegionSelection rs;
4548
4549         get_regions_for_action (rs);
4550
4551         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4552                 (*i)->region()->set_muted (!(*i)->region()->muted());
4553         }
4554 }
4555
4556 void
4557 Editor::toggle_region_opaque ()
4558 {
4559         RegionSelection rs;
4560
4561         get_regions_for_action (rs);
4562
4563         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4564                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
4565         }
4566 }
4567
4568 void
4569 Editor::set_fade_length (bool in)
4570 {
4571         RegionSelection rs;
4572
4573         get_regions_for_action (rs);
4574
4575         /* we need a region to measure the offset from the start */
4576
4577         RegionView* rv;
4578
4579         if (!rs.empty()) {
4580                 rv = rs.front();
4581         } else if (entered_regionview) {
4582                 rv = entered_regionview;
4583         } else {
4584                 return;
4585         }
4586
4587         nframes64_t pos = get_preferred_edit_position();
4588         nframes_t len;
4589         char* cmd;
4590
4591         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4592                 /* edit point is outside the relevant region */
4593                 return;
4594         }
4595
4596         if (in) {
4597                 if (pos <= rv->region()->position()) {
4598                         /* can't do it */
4599                         return;
4600                 }
4601                 len = pos - rv->region()->position();
4602                 cmd = _("set fade in length");
4603         } else {
4604                 if (pos >= rv->region()->last_frame()) {
4605                         /* can't do it */
4606                         return;
4607                 }
4608                 len = rv->region()->last_frame() - pos;
4609                 cmd = _("set fade out length");
4610         }
4611
4612         begin_reversible_command (cmd);
4613
4614         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4615                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4616
4617                 if (!tmp) {
4618                         return;
4619                 }
4620
4621                 boost::shared_ptr<AutomationList> alist;
4622                 if (in) {
4623                         alist = tmp->audio_region()->fade_in();
4624                 } else {
4625                         alist = tmp->audio_region()->fade_out();
4626                 }
4627
4628                 XMLNode &before = alist->get_state();
4629
4630                 if (in) {
4631                         tmp->audio_region()->set_fade_in_length (len);
4632                         tmp->audio_region()->set_fade_in_active (true);
4633                 } else {
4634                         tmp->audio_region()->set_fade_out_length (len);
4635                         tmp->audio_region()->set_fade_out_active (true);
4636                 }
4637
4638                 XMLNode &after = alist->get_state();
4639                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4640         }
4641
4642         commit_reversible_command ();
4643 }
4644
4645 void
4646 Editor::toggle_fade_active (bool in)
4647 {
4648         RegionSelection rs;
4649
4650         get_regions_for_action (rs);
4651
4652         if (rs.empty()) {
4653                 return;
4654         }
4655
4656         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4657         bool have_switch = false;
4658         bool yn = false;
4659
4660         begin_reversible_command (cmd);
4661
4662         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4663                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4664
4665                 if (!tmp) {
4666                         return;
4667                 }
4668
4669                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4670
4671                 /* make the behaviour consistent across all regions */
4672
4673                 if (!have_switch) {
4674                         if (in) {
4675                                 yn = region->fade_in_active();
4676                         } else {
4677                                 yn = region->fade_out_active();
4678                         }
4679                         have_switch = true;
4680                 }
4681
4682                 XMLNode &before = region->get_state();
4683                 if (in) {
4684                         region->set_fade_in_active (!yn);
4685                 } else {
4686                         region->set_fade_out_active (!yn);
4687                 }
4688                 XMLNode &after = region->get_state();
4689                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4690         }
4691
4692         commit_reversible_command ();
4693 }
4694
4695 void
4696 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4697 {
4698         RegionSelection rs;
4699
4700         get_regions_for_action (rs);
4701
4702         if (rs.empty()) {
4703                 return;
4704         }
4705
4706         begin_reversible_command (_("set fade in shape"));
4707
4708         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4709                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4710
4711                 if (!tmp) {
4712                         return;
4713                 }
4714
4715                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
4716                 XMLNode &before = alist->get_state();
4717
4718                 tmp->audio_region()->set_fade_in_shape (shape);
4719
4720                 XMLNode &after = alist->get_state();
4721                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
4722         }
4723
4724         commit_reversible_command ();
4725
4726 }
4727
4728 void
4729 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4730 {
4731         RegionSelection rs;
4732
4733         get_regions_for_action (rs);
4734
4735         if (rs.empty()) {
4736                 return;
4737         }
4738
4739         begin_reversible_command (_("set fade out shape"));
4740
4741         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4742                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4743
4744                 if (!tmp) {
4745                         return;
4746                 }
4747
4748                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
4749                 XMLNode &before = alist->get_state();
4750
4751                 tmp->audio_region()->set_fade_out_shape (shape);
4752
4753                 XMLNode &after = alist->get_state();
4754                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
4755         }
4756
4757         commit_reversible_command ();
4758 }
4759
4760 void
4761 Editor::set_fade_in_active (bool yn)
4762 {
4763         RegionSelection rs;
4764
4765         get_regions_for_action (rs);
4766
4767         if (rs.empty()) {
4768                 return;
4769         }
4770
4771         begin_reversible_command (_("set fade in active"));
4772
4773         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4774                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4775
4776                 if (!tmp) {
4777                         return;
4778                 }
4779
4780
4781                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4782
4783                 XMLNode &before = ar->get_state();
4784
4785                 ar->set_fade_in_active (yn);
4786
4787                 XMLNode &after = ar->get_state();
4788                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4789         }
4790
4791         commit_reversible_command ();
4792 }
4793
4794 void
4795 Editor::set_fade_out_active (bool yn)
4796 {
4797         RegionSelection rs;
4798
4799         get_regions_for_action (rs);
4800
4801         if (rs.empty()) {
4802                 return;
4803         }
4804
4805         begin_reversible_command (_("set fade out active"));
4806
4807         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4808                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4809
4810                 if (!tmp) {
4811                         return;
4812                 }
4813
4814                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4815
4816                 XMLNode &before = ar->get_state();
4817
4818                 ar->set_fade_out_active (yn);
4819
4820                 XMLNode &after = ar->get_state();
4821                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4822         }
4823
4824         commit_reversible_command ();
4825 }
4826
4827
4828 /** Update crossfade visibility after its configuration has been changed */
4829 void
4830 Editor::update_xfade_visibility ()
4831 {
4832         _xfade_visibility = Config->get_xfades_visible ();
4833
4834         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4835                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4836                 if (v) {
4837                         if (_xfade_visibility) {
4838                                 v->show_all_xfades ();
4839                         } else {
4840                                 v->hide_all_xfades ();
4841                         }
4842                 }
4843         }
4844 }
4845
4846 void
4847 Editor::set_edit_point ()
4848 {
4849         nframes64_t where;
4850         bool ignored;
4851
4852         if (!mouse_frame (where, ignored)) {
4853                 return;
4854         }
4855
4856         snap_to (where);
4857
4858         if (selection->markers.empty()) {
4859
4860                 mouse_add_new_marker (where);
4861
4862         } else {
4863                 bool ignored;
4864
4865                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
4866
4867                 if (loc) {
4868                         loc->move_to (where);
4869                 }
4870         }
4871 }
4872
4873 void
4874 Editor::set_playhead_cursor ()
4875 {
4876         if (entered_marker) {
4877                 session->request_locate (entered_marker->position(), session->transport_rolling());
4878         } else {
4879                 nframes64_t where;
4880                 bool ignored;
4881
4882                 if (!mouse_frame (where, ignored)) {
4883                         return;
4884                 }
4885
4886                 snap_to (where);
4887
4888                 if (session) {
4889                         session->request_locate (where, session->transport_rolling());
4890                 }
4891         }
4892 }
4893
4894 void
4895 Editor::split ()
4896 {
4897         RegionSelection rs;
4898
4899         get_regions_for_action (rs);
4900
4901         nframes64_t where = get_preferred_edit_position();
4902
4903         if (rs.empty()) {
4904                 return;
4905         }
4906
4907         split_regions_at (where, rs);
4908 }
4909
4910 void
4911 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
4912 {
4913         if (entered_track && mouse_mode == MouseObject) {
4914                 if (!selection->tracks.empty()) {
4915                         if (!selection->selected (entered_track)) {
4916                                 selection->add (entered_track);
4917                         }
4918                 } else {
4919                         /* there is no selection, but this operation requires/prefers selected objects */
4920
4921                         if (op_really_wants_one_track_if_none_are_selected) {
4922                                 selection->set (entered_track);
4923                         }
4924                 }
4925         }
4926 }
4927
4928 void
4929 Editor::trim_region_front ()
4930 {
4931         trim_region (true);
4932 }
4933
4934 void
4935 Editor::trim_region_back ()
4936 {
4937         trim_region (false);
4938 }
4939
4940 void
4941 Editor::trim_region (bool front)
4942 {
4943         nframes64_t where = get_preferred_edit_position();
4944         RegionSelection rs;
4945
4946         get_regions_for_action (rs);
4947
4948         if (rs.empty()) {
4949                 return;
4950         }
4951
4952         begin_reversible_command (front ? _("trim front") : _("trim back"));
4953
4954         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
4955                 if (!(*i)->region()->locked()) {
4956                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
4957                         XMLNode &before = pl->get_state();
4958                         if (front) {
4959                                 (*i)->region()->trim_front (where, this);
4960                         } else {
4961                                 (*i)->region()->trim_end (where, this);
4962                         }
4963                         XMLNode &after = pl->get_state();
4964                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
4965                 }
4966         }
4967
4968         commit_reversible_command ();
4969 }
4970
4971 struct EditorOrderRouteSorter {
4972     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
4973             /* use of ">" forces the correct sort order */
4974             return a->order_key ("editor") < b->order_key ("editor");
4975     }
4976 };
4977
4978 void
4979 Editor::select_next_route()
4980 {
4981         if (selection->tracks.empty()) {
4982                 selection->set (track_views.front());
4983                 return;
4984         }
4985
4986         TimeAxisView* current = selection->tracks.front();
4987
4988         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4989                 if (*i == current) {
4990                         ++i;
4991                         if (i != track_views.end()) {
4992                                 selection->set (*i);
4993                         } else {
4994                                 selection->set (*(track_views.begin()));
4995                         }
4996                         break;
4997                 }
4998         }
4999 }
5000
5001 void
5002 Editor::select_prev_route()
5003 {
5004         if (selection->tracks.empty()) {
5005                 selection->set (track_views.front());
5006                 return;
5007         }
5008
5009         TimeAxisView* current = selection->tracks.front();
5010
5011         for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5012                 if (*i == current) {
5013                         ++i;
5014                         if (i != track_views.rend()) {
5015                                 selection->set (*i);
5016                         } else {
5017                                 selection->set (*(track_views.rbegin()));
5018                         }
5019                         break;
5020                 }
5021         }
5022 }
5023
5024 void
5025 Editor::set_loop_from_selection (bool play)
5026 {
5027         if (session == 0 || selection->time.empty()) {
5028                 return;
5029         }
5030
5031         nframes_t start = selection->time[clicked_selection].start;
5032         nframes_t end = selection->time[clicked_selection].end;
5033
5034         set_loop_range (start, end,  _("set loop range from selection"));
5035
5036         if (play) {
5037                 session->request_play_loop (true);
5038                 session->request_locate (start, true);
5039         }
5040 }
5041
5042 void
5043 Editor::set_loop_from_edit_range (bool play)
5044 {
5045         if (session == 0) {
5046                 return;
5047         }
5048
5049         nframes64_t start;
5050         nframes64_t end;
5051
5052         if (!get_edit_op_range (start, end)) {
5053                 return;
5054         }
5055
5056         set_loop_range (start, end,  _("set loop range from edit range"));
5057
5058         if (play) {
5059                 session->request_play_loop (true);
5060                 session->request_locate (start, true);
5061         }
5062 }
5063
5064 void
5065 Editor::set_loop_from_region (bool play)
5066 {
5067         nframes64_t start = max_frames;
5068         nframes64_t end = 0;
5069
5070         RegionSelection rs;
5071
5072         get_regions_for_action (rs);
5073
5074         if (rs.empty()) {
5075                 return;
5076         }
5077
5078         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5079                 if ((*i)->region()->position() < start) {
5080                         start = (*i)->region()->position();
5081                 }
5082                 if ((*i)->region()->last_frame() + 1 > end) {
5083                         end = (*i)->region()->last_frame() + 1;
5084                 }
5085         }
5086
5087         set_loop_range (start, end, _("set loop range from region"));
5088
5089         if (play) {
5090                 session->request_play_loop (true);
5091                 session->request_locate (start, true);
5092         }
5093 }
5094
5095 void
5096 Editor::set_punch_from_selection ()
5097 {
5098         if (session == 0 || selection->time.empty()) {
5099                 return;
5100         }
5101
5102         nframes_t start = selection->time[clicked_selection].start;
5103         nframes_t end = selection->time[clicked_selection].end;
5104
5105         set_punch_range (start, end,  _("set punch range from selection"));
5106 }
5107
5108 void
5109 Editor::set_punch_from_edit_range ()
5110 {
5111         if (session == 0) {
5112                 return;
5113         }
5114
5115         nframes64_t start;
5116         nframes64_t end;
5117
5118         if (!get_edit_op_range (start, end)) {
5119                 return;
5120         }
5121
5122         set_punch_range (start, end,  _("set punch range from edit range"));
5123 }
5124
5125 void
5126 Editor::set_punch_from_region ()
5127 {
5128         nframes64_t start = max_frames;
5129         nframes64_t end = 0;
5130
5131         RegionSelection rs;
5132
5133         get_regions_for_action (rs);
5134
5135         if (rs.empty()) {
5136                 return;
5137         }
5138
5139         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5140                 if ((*i)->region()->position() < start) {
5141                         start = (*i)->region()->position();
5142                 }
5143                 if ((*i)->region()->last_frame() + 1 > end) {
5144                         end = (*i)->region()->last_frame() + 1;
5145                 }
5146         }
5147
5148         set_punch_range (start, end, _("set punch range from region"));
5149 }
5150
5151 void
5152 Editor::pitch_shift_regions ()
5153 {
5154         RegionSelection rs;
5155
5156         get_regions_for_action (rs);
5157
5158         if (rs.empty()) {
5159                 return;
5160         }
5161
5162         pitch_shift (rs, 1.2);
5163 }
5164
5165 void
5166 Editor::use_region_as_bar ()
5167 {
5168         if (!session) {
5169                 return;
5170         }
5171
5172         RegionSelection rs;
5173
5174         get_regions_for_action (rs);
5175
5176         if (rs.empty()) {
5177                 return;
5178         }
5179
5180         RegionView* rv = rs.front();
5181
5182         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5183 }
5184
5185 void
5186 Editor::use_range_as_bar ()
5187 {
5188         nframes64_t start, end;
5189         if (get_edit_op_range (start, end)) {
5190                 define_one_bar (start, end);
5191         }
5192 }
5193
5194 void
5195 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5196 {
5197         nframes64_t length = end - start;
5198
5199         const Meter& m (session->tempo_map().meter_at (start));
5200
5201         /* length = 1 bar */
5202
5203         /* now we want frames per beat.
5204            we have frames per bar, and beats per bar, so ...
5205         */
5206
5207         double frames_per_beat = length / m.beats_per_bar();
5208
5209         /* beats per minute = */
5210
5211         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5212
5213         /* now decide whether to:
5214
5215             (a) set global tempo
5216             (b) add a new tempo marker
5217
5218         */
5219
5220         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5221
5222         bool do_global = false;
5223
5224         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5225
5226                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5227                    at the start, or create a new marker
5228                 */
5229
5230                 vector<string> options;
5231                 options.push_back (_("Cancel"));
5232                 options.push_back (_("Add new marker"));
5233                 options.push_back (_("Set global tempo"));
5234                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5235                           options);
5236                 c.set_default_response (2);
5237
5238                 switch (c.run()) {
5239                 case 0:
5240                         return;
5241
5242                 case 2:
5243                         do_global = true;
5244                         break;
5245
5246                 default:
5247                         do_global = false;
5248                 }
5249
5250         } else {
5251
5252                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5253                    if the marker is at the region starter, change it, otherwise add
5254                    a new tempo marker
5255                 */
5256         }
5257
5258         begin_reversible_command (_("set tempo from region"));
5259         XMLNode& before (session->tempo_map().get_state());
5260
5261         if (do_global) {
5262                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5263         } else if (t.frame() == start) {
5264                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5265         } else {
5266                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5267         }
5268
5269         XMLNode& after (session->tempo_map().get_state());
5270
5271         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5272         commit_reversible_command ();
5273 }
5274
5275 void
5276 Editor::split_region_at_transients ()
5277 {
5278         AnalysisFeatureList positions;
5279
5280         if (!session) {
5281                 return;
5282         }
5283
5284         RegionSelection rs;
5285
5286         get_regions_for_action (rs);
5287
5288         if (rs.empty()) {
5289                 return;
5290         }
5291
5292         session->begin_reversible_command (_("split regions"));
5293
5294         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5295
5296                 RegionSelection::iterator tmp;
5297
5298                 tmp = i;
5299                 ++tmp;
5300
5301                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5302
5303                 if (ar && (ar->get_transients (positions) == 0)) {
5304                         split_region_at_points ((*i)->region(), positions, true);
5305                         positions.clear ();
5306                 }
5307
5308                 i = tmp;
5309         }
5310
5311         session->commit_reversible_command ();
5312
5313 }
5314
5315 void
5316 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5317 {
5318         bool use_rhythmic_rodent = false;
5319
5320         boost::shared_ptr<Playlist> pl = r->playlist();
5321
5322         if (!pl) {
5323                 return;
5324         }
5325
5326         if (positions.empty()) {
5327                 return;
5328         }
5329
5330
5331         if (positions.size() > 20) {
5332                 Glib::ustring msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
5333                 MessageDialog msg (msgstr,
5334                                    false,
5335                                    Gtk::MESSAGE_INFO,
5336                                    Gtk::BUTTONS_OK_CANCEL);
5337
5338                 if (can_ferret) {
5339                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5340                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5341                 } else {
5342                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5343                 }
5344
5345                 msg.set_title (_("Excessive split?"));
5346                 msg.present ();
5347
5348                 int response = msg.run();
5349                 msg.hide ();
5350                 switch (response) {
5351                 case RESPONSE_OK:
5352                         break;
5353                 case RESPONSE_APPLY:
5354                         use_rhythmic_rodent = true;
5355                         break;
5356                 default:
5357                         return;
5358                 }
5359         }
5360
5361         if (use_rhythmic_rodent) {
5362                 show_rhythm_ferret ();
5363                 return;
5364         }
5365
5366         AnalysisFeatureList::const_iterator x;
5367
5368         nframes64_t pos = r->position();
5369
5370         XMLNode& before (pl->get_state());
5371
5372         x = positions.begin();
5373
5374         while (x != positions.end()) {
5375                 if ((*x) > pos) {
5376                         break;
5377                 }
5378                 ++x;
5379         }
5380
5381         if (x == positions.end()) {
5382                 return;
5383         }
5384
5385         pl->freeze ();
5386         pl->remove_region (r);
5387
5388         while (x != positions.end()) {
5389
5390                 /* file start = original start + how far we from the initial position ?
5391                  */
5392
5393                 nframes64_t file_start = r->start() + (pos - r->position());
5394
5395                 /* length = next position - current position
5396                  */
5397
5398                 nframes64_t len = (*x) - pos;
5399
5400                 /* XXX we do we really want to allow even single-sample regions?
5401                    shouldn't we have some kind of lower limit on region size?
5402                 */
5403
5404                 if (len <= 0) {
5405                         break;
5406                 }
5407
5408                 string new_name;
5409
5410                 if (session->region_name (new_name, r->name())) {
5411                         break;
5412                 }
5413
5414                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5415
5416                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5417                 pl->add_region (nr, pos);
5418
5419                 pos += len;
5420                 ++x;
5421
5422                 if (*x > r->last_frame()) {
5423
5424                         /* add final fragment */
5425
5426                         file_start = r->start() + (pos - r->position());
5427                         len = r->last_frame() - pos;
5428
5429                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5430                         pl->add_region (nr, pos);
5431
5432                         break;
5433                 }
5434         }
5435
5436         pl->thaw ();
5437
5438         XMLNode& after (pl->get_state());
5439
5440         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
5441 }
5442
5443 void
5444 Editor::tab_to_transient (bool forward)
5445 {
5446         AnalysisFeatureList positions;
5447
5448         if (!session) {
5449                 return;
5450         }
5451
5452         nframes64_t pos = session->audible_frame ();
5453
5454         if (!selection->tracks.empty()) {
5455
5456                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5457
5458                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5459
5460                         if (rtv) {
5461                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
5462                                 if (ds) {
5463                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
5464                                         if (pl) {
5465                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5466
5467                                                 if (result >= 0) {
5468                                                         positions.push_back (result);
5469                                                 }
5470                                         }
5471                                 }
5472                         }
5473                 }
5474
5475         } else {
5476
5477                 RegionSelection rs;
5478
5479                 get_regions_for_action (rs);
5480
5481                 if (rs.empty()) {
5482                         return;
5483                 }
5484
5485                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5486                         (*r)->region()->get_transients (positions);
5487                 }
5488         }
5489
5490         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
5491
5492         if (forward) {
5493                 AnalysisFeatureList::iterator x;
5494
5495                 for (x = positions.begin(); x != positions.end(); ++x) {
5496                         if ((*x) > pos) {
5497                                 break;
5498                         }
5499                 }
5500
5501                 if (x != positions.end ()) {
5502                         session->request_locate (*x);
5503                 }
5504
5505         } else {
5506                 AnalysisFeatureList::reverse_iterator x;
5507
5508                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
5509                         if ((*x) < pos) {
5510                                 break;
5511                         }
5512                 }
5513
5514                 if (x != positions.rend ()) {
5515                         session->request_locate (*x);
5516                 }
5517         }
5518 }
5519
5520 void
5521 Editor::playhead_forward_to_grid ()
5522 {
5523         if (!session) return;
5524         nframes64_t pos = playhead_cursor->current_frame;
5525         if (pos < max_frames) {
5526                 pos++;
5527                 snap_to_internal (pos, 1, false);
5528                 session->request_locate (pos);
5529         }
5530 }
5531
5532
5533 void
5534 Editor::playhead_backward_to_grid ()
5535 {
5536         if (!session) return;
5537         nframes64_t pos = playhead_cursor->current_frame;
5538         if (pos > 1) {
5539                 pos--;
5540                 snap_to_internal (pos, -1, false);
5541                 session->request_locate (pos);
5542         }
5543 }
5544
5545 void
5546 Editor::set_track_height (TimeAxisView::TrackHeight h)
5547 {
5548         TrackSelection& ts (selection->tracks);
5549
5550         if (ts.empty()) {
5551                 return;
5552         }
5553
5554         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5555                 (*x)->set_height (h);
5556         }
5557 }
5558
5559 void
5560 Editor::set_track_height_largest ()
5561 {
5562         set_track_height (TimeAxisView::Largest);
5563 }
5564 void
5565 Editor::set_track_height_large ()
5566 {
5567         set_track_height (TimeAxisView::Large);
5568 }
5569 void
5570 Editor::set_track_height_larger ()
5571 {
5572         set_track_height (TimeAxisView::Larger);
5573 }
5574 void
5575 Editor::set_track_height_normal ()
5576 {
5577         set_track_height (TimeAxisView::Normal);
5578 }
5579 void
5580 Editor::set_track_height_smaller ()
5581 {
5582         set_track_height (TimeAxisView::Smaller);
5583 }
5584 void
5585 Editor::set_track_height_small ()
5586 {
5587         set_track_height (TimeAxisView::Small);
5588 }
5589
5590 void
5591 Editor::toggle_tracks_active ()
5592 {
5593         TrackSelection& ts (selection->tracks);
5594         bool first = true;
5595         bool target = false;
5596
5597         if (ts.empty()) {
5598                 return;
5599         }
5600
5601         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5602                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
5603
5604                 if (rtv) {
5605                         if (first) {
5606                                 target = !rtv->_route->active();
5607                                 first = false;
5608                         }
5609                         rtv->_route->set_active (target);
5610                 }
5611         }
5612 }
5613
5614 void
5615 Editor::remove_tracks ()
5616 {
5617         TrackSelection& ts (selection->tracks);
5618
5619         if (ts.empty()) {
5620                 return;
5621         }
5622
5623         vector<string> choices;
5624         string prompt;
5625         int ntracks = 0;
5626         int nbusses = 0;
5627         const char* trackstr;
5628         const char* busstr;
5629         vector<boost::shared_ptr<Route> > routes;
5630
5631         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5632                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
5633                 if (rtv) {
5634                         if (rtv->is_track()) {
5635                                 ntracks++;
5636                         } else {
5637                                 nbusses++;
5638                         }
5639                 }
5640                 routes.push_back (rtv->_route);
5641         }
5642
5643         if (ntracks + nbusses == 0) {
5644                 return;
5645         }
5646
5647         if (ntracks > 1) {
5648                 trackstr = _("tracks");
5649         } else {
5650                 trackstr = _("track");
5651         }
5652
5653         if (nbusses > 1) {
5654                 busstr = _("busses");
5655         } else {
5656                 busstr = _("bus");
5657         }
5658
5659         if (ntracks) {
5660                 if (nbusses) {
5661                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
5662                                                     "(You may also lose the playlists associated with the %2)\n\n"
5663                                                     "This action cannot be undone!"),
5664                                                   ntracks, trackstr, nbusses, busstr);
5665                 } else {
5666                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
5667                                                     "(You may also lose the playlists associated with the %2)\n\n"
5668                                                     "This action cannot be undone!"),
5669                                                   ntracks, trackstr);
5670                 }
5671         } else if (nbusses) {
5672                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
5673                                           nbusses, busstr);
5674         }
5675
5676         choices.push_back (_("No, do nothing."));
5677         if (ntracks + nbusses > 1) {
5678                 choices.push_back (_("Yes, remove them."));
5679         } else {
5680                 choices.push_back (_("Yes, remove it."));
5681         }
5682
5683         Choice prompter (prompt, choices);
5684
5685         if (prompter.run () != 1) {
5686                 return;
5687         }
5688
5689         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
5690                 session->remove_route (*x);
5691         }
5692 }
5693
5694 void
5695 Editor::set_waveform_scale (WaveformScale ws)
5696 {
5697         TrackSelection& ts (selection->tracks);
5698
5699         if (ts.empty()) {
5700                 return;
5701         }
5702
5703         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5704                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (*x);
5705                 if (atv) {
5706                         atv->set_waveform_scale (ws);
5707                 }
5708         }
5709 }
5710