gtk2_ardour/editor_ops.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #include <unistd.h>
  23
  24 #include <cstdlib>
  25 #include <cmath>
  26 #include <string>
  27 #include <map>
  28 #include <set>
  29
  30 #include "pbd/error.h"
  31 #include "pbd/basename.h"
  32 #include "pbd/pthread_utils.h"
  33 #include "pbd/memento_command.h"
  34 #include "pbd/unwind.h"
  35 #include "pbd/whitespace.h"
  36 #include "pbd/stateful_diff_command.h"
  37
  38 #include <gtkmm2ext/utils.h>
  39 #include <gtkmm2ext/choice.h>
  40 #include <gtkmm2ext/popup.h>
  41
  42 #include "ardour/audio_track.h"
  43 #include "ardour/audioregion.h"
  44 #include "ardour/dB.h"
  45 #include "ardour/location.h"
  46 #include "ardour/midi_region.h"
  47 #include "ardour/midi_track.h"
  48 #include "ardour/operations.h"
  49 #include "ardour/playlist_factory.h"
  50 #include "ardour/profile.h"
  51 #include "ardour/quantize.h"
  52 #include "ardour/region_factory.h"
  53 #include "ardour/reverse.h"
  54 #include "ardour/session.h"
  55 #include "ardour/session_playlists.h"
  56 #include "ardour/strip_silence.h"
  57 #include "ardour/transient_detector.h"
  58
  59 #include "canvas/canvas.h"
  60
  61 #include "actions.h"
  62 #include "ardour_ui.h"
  63 #include "audio_region_view.h"
  64 #include "audio_streamview.h"
  65 #include "audio_time_axis.h"
  66 #include "automation_time_axis.h"
  67 #include "control_point.h"
  68 #include "debug.h"
  69 #include "editing.h"
  70 #include "editor.h"
  71 #include "editor_cursors.h"
  72 #include "editor_drag.h"
  73 #include "editor_regions.h"
  74 #include "editor_routes.h"
  75 #include "gui_thread.h"
  76 #include "insert_time_dialog.h"
  77 #include "interthread_progress_window.h"
  78 #include "keyboard.h"
  79 #include "midi_region_view.h"
  80 #include "mixer_strip.h"
  81 #include "mouse_cursors.h"
  82 #include "normalize_dialog.h"
  83 #include "patch_change_dialog.h"
  84 #include "quantize_dialog.h"
  85 #include "region_gain_line.h"
  86 #include "rgb_macros.h"
  87 #include "route_time_axis.h"
  88 #include "selection.h"
  89 #include "selection_templates.h"
  90 #include "streamview.h"
  91 #include "strip_silence_dialog.h"
  92 #include "time_axis_view.h"
  93 #include "transpose_dialog.h"
  94
  95 #include "i18n.h"
  96
  97 using namespace std;
  98 using namespace ARDOUR;
  99 using namespace PBD;
 100 using namespace Gtk;
 101 using namespace Gtkmm2ext;
 102 using namespace Editing;
 103 using Gtkmm2ext::Keyboard;
 104
 105 /***********************************************************************
 106   Editor operations
 107  ***********************************************************************/
 108
 109 void
 110 Editor::undo (uint32_t n)
 111 {
 112         if (_drags->active ()) {
 113                 _drags->abort ();
 114         }
 115
 116         if (_session) {
 117                 _session->undo (n);
 118         }
 119 }
 120
 121 void
 122 Editor::redo (uint32_t n)
 123 {
 124         if (_drags->active ()) {
 125                 _drags->abort ();
 126         }
 127
 128         if (_session) {
 129                 _session->redo (n);
 130         }
 131 }
 132
 133 void
 134 Editor::split_regions_at (framepos_t where, RegionSelection& regions)
 135 {
 136         bool frozen = false;
 137
 138         RegionSelection pre_selected_regions = selection->regions;
 139         bool working_on_selection = !pre_selected_regions.empty();
 140
 141         list<boost::shared_ptr<Playlist> > used_playlists;
 142         list<RouteTimeAxisView*> used_trackviews;
 143
 144         if (regions.empty()) {
 145                 return;
 146         }
 147
 148         begin_reversible_command (_("split"));
 149
 150         // if splitting a single region, and snap-to is using
 151         // region boundaries, don't pay attention to them
 152
 153         if (regions.size() == 1) {
 154                 switch (_snap_type) {
 155                 case SnapToRegionStart:
 156                 case SnapToRegionSync:
 157                 case SnapToRegionEnd:
 158                         break;
 159                 default:
 160                         snap_to (where);
 161                 }
 162         } else {
 163                 snap_to (where);
 164
 165                 frozen = true;
 166                 EditorFreeze(); /* Emit Signal */
 167         }
 168
 169         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 170
 171                 RegionSelection::iterator tmp;
 172
 173                 /* XXX this test needs to be more complicated, to make sure we really
 174                    have something to split.
 175                 */
 176
 177                 if (!(*a)->region()->covers (where)) {
 178                         ++a;
 179                         continue;
 180                 }
 181
 182                 tmp = a;
 183                 ++tmp;
 184
 185                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 186
 187                 if (!pl) {
 188                         a = tmp;
 189                         continue;
 190                 }
 191
 192                 if (!pl->frozen()) {
 193                         /* we haven't seen this playlist before */
 194
 195                         /* remember used playlists so we can thaw them later */
 196                         used_playlists.push_back(pl);
 197
 198                         TimeAxisView& tv = (*a)->get_time_axis_view();
 199                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
 200                         if (rtv) {
 201                                 used_trackviews.push_back (rtv);
 202                         }
 203                         pl->freeze();
 204                 }
 205
 206
 207                 if (pl) {
 208                         pl->clear_changes ();
 209                         pl->split_region ((*a)->region(), where);
 210                         _session->add_command (new StatefulDiffCommand (pl));
 211                 }
 212
 213                 a = tmp;
 214         }
 215
 216         vector<sigc::connection> region_added_connections;
 217
 218         for (list<RouteTimeAxisView*>::iterator i = used_trackviews.begin(); i != used_trackviews.end(); ++i) {
 219                 region_added_connections.push_back ((*i)->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view)));
 220         }
 221
 222         latest_regionviews.clear ();
 223
 224         while (used_playlists.size() > 0) {
 225                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 226                 (*i)->thaw();
 227                 used_playlists.pop_front();
 228         }
 229
 230         for (vector<sigc::connection>::iterator c = region_added_connections.begin(); c != region_added_connections.end(); ++c) {
 231                 (*c).disconnect ();
 232         }
 233
 234         commit_reversible_command ();
 235
 236         if (frozen){
 237                 EditorThaw(); /* Emit Signal */
 238         }
 239
 240         if (ARDOUR::Profile->get_mixbus()) {
 241                 //IFF we were working on selected regions, try to reinstate the other region selections that existed before the freeze/thaw.
 242                 _ignore_follow_edits = true;  //a split will change the region selection in mysterious ways;  its not practical or wanted to follow this edit
 243                 if( working_on_selection ) {
 244                         selection->add ( pre_selected_regions );
 245                         selection->add (latest_regionviews);  //these are the new regions created after the split
 246                 }
 247                 _ignore_follow_edits = false;
 248         }
 249 }
 250
 251 /** Move one extreme of the current range selection.  If more than one range is selected,
 252  *  the start of the earliest range or the end of the latest range is moved.
 253  *
 254  *  @param move_end true to move the end of the current range selection, false to move
 255  *  the start.
 256  *  @param next true to move the extreme to the next region boundary, false to move to
 257  *  the previous.
 258  */
 259 void
 260 Editor::move_range_selection_start_or_end_to_region_boundary (bool move_end, bool next)
 261 {
 262         if (selection->time.start() == selection->time.end_frame()) {
 263                 return;
 264         }
 265
 266         framepos_t start = selection->time.start ();
 267         framepos_t end = selection->time.end_frame ();
 268
 269         /* the position of the thing we may move */
 270         framepos_t pos = move_end ? end : start;
 271         int dir = next ? 1 : -1;
 272
 273         /* so we don't find the current region again */
 274         if (dir > 0 || pos > 0) {
 275                 pos += dir;
 276         }
 277
 278         framepos_t const target = get_region_boundary (pos, dir, true, false);
 279         if (target < 0) {
 280                 return;
 281         }
 282
 283         if (move_end) {
 284                 end = target;
 285         } else {
 286                 start = target;
 287         }
 288
 289         if (end < start) {
 290                 return;
 291         }
 292
 293         begin_reversible_command (_("alter selection"));
 294         selection->set_preserving_all_ranges (start, end);
 295         commit_reversible_command ();
 296 }
 297
 298 bool
 299 Editor::nudge_forward_release (GdkEventButton* ev)
 300 {
 301         if (ev->state & Keyboard::PrimaryModifier) {
 302                 nudge_forward (false, true);
 303         } else {
 304                 nudge_forward (false, false);
 305         }
 306         return false;
 307 }
 308
 309 bool
 310 Editor::nudge_backward_release (GdkEventButton* ev)
 311 {
 312         if (ev->state & Keyboard::PrimaryModifier) {
 313                 nudge_backward (false, true);
 314         } else {
 315                 nudge_backward (false, false);
 316         }
 317         return false;
 318 }
 319
 320
 321 void
 322 Editor::nudge_forward (bool next, bool force_playhead)
 323 {
 324         framepos_t distance;
 325         framepos_t next_distance;
 326
 327         if (!_session) {
 328                 return;
 329         }
 330
 331         RegionSelection rs = get_regions_from_selection_and_entered ();
 332
 333         if (!force_playhead && !rs.empty()) {
 334
 335                 begin_reversible_command (_("nudge regions forward"));
 336
 337                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 338                         boost::shared_ptr<Region> r ((*i)->region());
 339
 340                         distance = get_nudge_distance (r->position(), next_distance);
 341
 342                         if (next) {
 343                                 distance = next_distance;
 344                         }
 345
 346                         r->clear_changes ();
 347                         r->set_position (r->position() + distance);
 348                         _session->add_command (new StatefulDiffCommand (r));
 349                 }
 350
 351                 commit_reversible_command ();
 352
 353
 354         } else if (!force_playhead && !selection->markers.empty()) {
 355
 356                 bool is_start;
 357
 358                 begin_reversible_command (_("nudge location forward"));
 359
 360                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 361
 362                         Location* loc = find_location_from_marker ((*i), is_start);
 363
 364                         if (loc) {
 365
 366                                 XMLNode& before (loc->get_state());
 367
 368                                 if (is_start) {
 369                                         distance = get_nudge_distance (loc->start(), next_distance);
 370                                         if (next) {
 371                                                 distance = next_distance;
 372                                         }
 373                                         if (max_framepos - distance > loc->start() + loc->length()) {
 374                                                 loc->set_start (loc->start() + distance);
 375                                         } else {
 376                                                 loc->set_start (max_framepos - loc->length());
 377                                         }
 378                                 } else {
 379                                         distance = get_nudge_distance (loc->end(), next_distance);
 380                                         if (next) {
 381                                                 distance = next_distance;
 382                                         }
 383                                         if (max_framepos - distance > loc->end()) {
 384                                                 loc->set_end (loc->end() + distance);
 385                                         } else {
 386                                                 loc->set_end (max_framepos);
 387                                         }
 388                                 }
 389                                 XMLNode& after (loc->get_state());
 390                                 _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 391                         }
 392                 }
 393
 394                 commit_reversible_command ();
 395
 396         } else {
 397                 distance = get_nudge_distance (playhead_cursor->current_frame (), next_distance);
 398                 _session->request_locate (playhead_cursor->current_frame () + distance);
 399         }
 400 }
 401
 402 void
 403 Editor::nudge_backward (bool next, bool force_playhead)
 404 {
 405         framepos_t distance;
 406         framepos_t next_distance;
 407
 408         if (!_session) {
 409                 return;
 410         }
 411
 412         RegionSelection rs = get_regions_from_selection_and_entered ();
 413
 414         if (!force_playhead && !rs.empty()) {
 415
 416                 begin_reversible_command (_("nudge regions backward"));
 417
 418                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 419                         boost::shared_ptr<Region> r ((*i)->region());
 420
 421                         distance = get_nudge_distance (r->position(), next_distance);
 422
 423                         if (next) {
 424                                 distance = next_distance;
 425                         }
 426
 427                         r->clear_changes ();
 428
 429                         if (r->position() > distance) {
 430                                 r->set_position (r->position() - distance);
 431                         } else {
 432                                 r->set_position (0);
 433                         }
 434                         _session->add_command (new StatefulDiffCommand (r));
 435                 }
 436
 437                 commit_reversible_command ();
 438
 439         } else if (!force_playhead && !selection->markers.empty()) {
 440
 441                 bool is_start;
 442
 443                 begin_reversible_command (_("nudge location forward"));
 444
 445                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 446
 447                         Location* loc = find_location_from_marker ((*i), is_start);
 448
 449                         if (loc) {
 450
 451                                 XMLNode& before (loc->get_state());
 452
 453                                 if (is_start) {
 454                                         distance = get_nudge_distance (loc->start(), next_distance);
 455                                         if (next) {
 456                                                 distance = next_distance;
 457                                         }
 458                                         if (distance < loc->start()) {
 459                                                 loc->set_start (loc->start() - distance);
 460                                         } else {
 461                                                 loc->set_start (0);
 462                                         }
 463                                 } else {
 464                                         distance = get_nudge_distance (loc->end(), next_distance);
 465
 466                                         if (next) {
 467                                                 distance = next_distance;
 468                                         }
 469
 470                                         if (distance < loc->end() - loc->length()) {
 471                                                 loc->set_end (loc->end() - distance);
 472                                         } else {
 473                                                 loc->set_end (loc->length());
 474                                         }
 475                                 }
 476
 477                                 XMLNode& after (loc->get_state());
 478                                 _session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 479                         }
 480                 }
 481
 482                 commit_reversible_command ();
 483
 484         } else {
 485
 486                 distance = get_nudge_distance (playhead_cursor->current_frame (), next_distance);
 487
 488                 if (playhead_cursor->current_frame () > distance) {
 489                         _session->request_locate (playhead_cursor->current_frame () - distance);
 490                 } else {
 491                         _session->goto_start();
 492                 }
 493         }
 494 }
 495
 496 void
 497 Editor::nudge_forward_capture_offset ()
 498 {
 499         RegionSelection rs = get_regions_from_selection_and_entered ();
 500
 501         if (!_session || rs.empty()) {
 502                 return;
 503         }
 504
 505         begin_reversible_command (_("nudge forward"));
 506
 507         framepos_t const distance = _session->worst_output_latency();
 508
 509         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 510                 boost::shared_ptr<Region> r ((*i)->region());
 511
 512                 r->clear_changes ();
 513                 r->set_position (r->position() + distance);
 514                 _session->add_command(new StatefulDiffCommand (r));
 515         }
 516
 517         commit_reversible_command ();
 518 }
 519
 520 void
 521 Editor::nudge_backward_capture_offset ()
 522 {
 523         RegionSelection rs = get_regions_from_selection_and_entered ();
 524
 525         if (!_session || rs.empty()) {
 526                 return;
 527         }
 528
 529         begin_reversible_command (_("nudge backward"));
 530
 531         framepos_t const distance = _session->worst_output_latency();
 532
 533         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 534                 boost::shared_ptr<Region> r ((*i)->region());
 535
 536                 r->clear_changes ();
 537
 538                 if (r->position() > distance) {
 539                         r->set_position (r->position() - distance);
 540                 } else {
 541                         r->set_position (0);
 542                 }
 543                 _session->add_command(new StatefulDiffCommand (r));
 544         }
 545
 546         commit_reversible_command ();
 547 }
 548
 549 struct RegionSelectionPositionSorter {
 550         bool operator() (RegionView* a, RegionView* b) {
 551                 return a->region()->position() < b->region()->position();
 552         }
 553 };
 554
 555 void
 556 Editor::sequence_regions ()
 557 {
 558         framepos_t r_end;
 559         framepos_t r_end_prev;
 560
 561         int iCount=0;
 562
 563         if (!_session) {
 564                 return;
 565         }
 566
 567         RegionSelection rs = get_regions_from_selection_and_entered ();
 568         rs.sort(RegionSelectionPositionSorter());
 569
 570         if (!rs.empty()) {
 571
 572                 begin_reversible_command (_("sequence regions"));
 573                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 574                         boost::shared_ptr<Region> r ((*i)->region());
 575
 576                         r->clear_changes();
 577
 578                         if(r->locked())
 579                         {
 580                                 continue;
 581                         }
 582                         if(r->position_locked())
 583                         {
 584                                 continue;
 585                         }
 586                         if(iCount>0)
 587                         {
 588                                 r_end_prev=r_end;
 589                                 r->set_position(r_end_prev);
 590                         }
 591
 592                         _session->add_command (new StatefulDiffCommand (r));
 593
 594                         r_end=r->position() + r->length();
 595
 596                         iCount++;
 597                 }
 598                 commit_reversible_command ();
 599         }
 600 }
 601
 602
 603 /* DISPLAY MOTION */
 604
 605 void
 606 Editor::move_to_start ()
 607 {
 608         _session->goto_start ();
 609 }
 610
 611 void
 612 Editor::move_to_end ()
 613 {
 614
 615         _session->request_locate (_session->current_end_frame());
 616 }
 617
 618 void
 619 Editor::build_region_boundary_cache ()
 620 {
 621         framepos_t pos = 0;
 622         vector<RegionPoint> interesting_points;
 623         boost::shared_ptr<Region> r;
 624         TrackViewList tracks;
 625         bool at_end = false;
 626
 627         region_boundary_cache.clear ();
 628
 629         if (_session == 0) {
 630                 return;
 631         }
 632
 633         switch (_snap_type) {
 634         case SnapToRegionStart:
 635                 interesting_points.push_back (Start);
 636                 break;
 637         case SnapToRegionEnd:
 638                 interesting_points.push_back (End);
 639                 break;
 640         case SnapToRegionSync:
 641                 interesting_points.push_back (SyncPoint);
 642                 break;
 643         case SnapToRegionBoundary:
 644                 interesting_points.push_back (Start);
 645                 interesting_points.push_back (End);
 646                 break;
 647         default:
 648                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), _snap_type) << endmsg;
 649                 /*NOTREACHED*/
 650                 return;
 651         }
 652
 653         TimeAxisView *ontrack = 0;
 654         TrackViewList tlist;
 655
 656         if (!selection->tracks.empty()) {
 657                 tlist = selection->tracks.filter_to_unique_playlists ();
 658         } else {
 659                 tlist = track_views.filter_to_unique_playlists ();
 660         }
 661
 662         while (pos < _session->current_end_frame() && !at_end) {
 663
 664                 framepos_t rpos;
 665                 framepos_t lpos = max_framepos;
 666
 667                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 668
 669                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 670                                 if (*p == interesting_points.back()) {
 671                                         at_end = true;
 672                                 }
 673                                 /* move to next point type */
 674                                 continue;
 675                         }
 676
 677                         switch (*p) {
 678                         case Start:
 679                                 rpos = r->first_frame();
 680                                 break;
 681
 682                         case End:
 683                                 rpos = r->last_frame();
 684                                 break;
 685
 686                         case SyncPoint:
 687                                 rpos = r->sync_position ();
 688                                 break;
 689
 690                         default:
 691                                 break;
 692                         }
 693
 694                         float speed = 1.0f;
 695                         RouteTimeAxisView *rtav;
 696
 697                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 698                                 if (rtav->track() != 0) {
 699                                         speed = rtav->track()->speed();
 700                                 }
 701                         }
 702
 703                         rpos = track_frame_to_session_frame (rpos, speed);
 704
 705                         if (rpos < lpos) {
 706                                 lpos = rpos;
 707                         }
 708
 709                         /* prevent duplicates, but we don't use set<> because we want to be able
 710                            to sort later.
 711                         */
 712
 713                         vector<framepos_t>::iterator ri;
 714
 715                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 716                                 if (*ri == rpos) {
 717                                         break;
 718                                 }
 719                         }
 720
 721                         if (ri == region_boundary_cache.end()) {
 722                                 region_boundary_cache.push_back (rpos);
 723                         }
 724                 }
 725
 726                 pos = lpos + 1;
 727         }
 728
 729         /* finally sort to be sure that the order is correct */
 730
 731         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 732 }
 733
 734 boost::shared_ptr<Region>
 735 Editor::find_next_region (framepos_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 736 {
 737         TrackViewList::iterator i;
 738         framepos_t closest = max_framepos;
 739         boost::shared_ptr<Region> ret;
 740         framepos_t rpos = 0;
 741
 742         float track_speed;
 743         framepos_t track_frame;
 744         RouteTimeAxisView *rtav;
 745
 746         for (i = tracks.begin(); i != tracks.end(); ++i) {
 747
 748                 framecnt_t distance;
 749                 boost::shared_ptr<Region> r;
 750
 751                 track_speed = 1.0f;
 752                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 753                         if (rtav->track()!=0)
 754                                 track_speed = rtav->track()->speed();
 755                 }
 756
 757                 track_frame = session_frame_to_track_frame(frame, track_speed);
 758
 759                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 760                         continue;
 761                 }
 762
 763                 switch (point) {
 764                 case Start:
 765                         rpos = r->first_frame ();
 766                         break;
 767
 768                 case End:
 769                         rpos = r->last_frame ();
 770                         break;
 771
 772                 case SyncPoint:
 773                         rpos = r->sync_position ();
 774                         break;
 775                 }
 776
 777                 // rpos is a "track frame", converting it to "_session frame"
 778                 rpos = track_frame_to_session_frame(rpos, track_speed);
 779
 780                 if (rpos > frame) {
 781                         distance = rpos - frame;
 782                 } else {
 783                         distance = frame - rpos;
 784                 }
 785
 786                 if (distance < closest) {
 787                         closest = distance;
 788                         if (ontrack != 0)
 789                                 *ontrack = (*i);
 790                         ret = r;
 791                 }
 792         }
 793
 794         return ret;
 795 }
 796
 797 framepos_t
 798 Editor::find_next_region_boundary (framepos_t pos, int32_t dir, const TrackViewList& tracks)
 799 {
 800         framecnt_t distance = max_framepos;
 801         framepos_t current_nearest = -1;
 802
 803         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 804                 framepos_t contender;
 805                 framecnt_t d;
 806
 807                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 808
 809                 if (!rtv) {
 810                         continue;
 811                 }
 812
 813                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 814                         continue;
 815                 }
 816
 817                 d = ::llabs (pos - contender);
 818
 819                 if (d < distance) {
 820                         current_nearest = contender;
 821                         distance = d;
 822                 }
 823         }
 824
 825         return current_nearest;
 826 }
 827
 828 framepos_t
 829 Editor::get_region_boundary (framepos_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 830 {
 831         framepos_t target;
 832         TrackViewList tvl;
 833
 834         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 835
 836                 if (!selection->tracks.empty()) {
 837
 838                         target = find_next_region_boundary (pos, dir, selection->tracks);
 839
 840                 } else {
 841
 842                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 843                                 get_onscreen_tracks (tvl);
 844                                 target = find_next_region_boundary (pos, dir, tvl);
 845                         } else {
 846                                 target = find_next_region_boundary (pos, dir, track_views);
 847                         }
 848                 }
 849
 850         } else {
 851
 852                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 853                         get_onscreen_tracks (tvl);
 854                         target = find_next_region_boundary (pos, dir, tvl);
 855                 } else {
 856                         target = find_next_region_boundary (pos, dir, track_views);
 857                 }
 858         }
 859
 860         return target;
 861 }
 862
 863 void
 864 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 865 {
 866         framepos_t pos = playhead_cursor->current_frame ();
 867         framepos_t target;
 868
 869         if (!_session) {
 870                 return;
 871         }
 872
 873         // so we don't find the current region again..
 874         if (dir > 0 || pos > 0) {
 875                 pos += dir;
 876         }
 877
 878         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 879                 return;
 880         }
 881
 882         _session->request_locate (target);
 883 }
 884
 885 void
 886 Editor::cursor_to_next_region_boundary (bool with_selection)
 887 {
 888         cursor_to_region_boundary (with_selection, 1);
 889 }
 890
 891 void
 892 Editor::cursor_to_previous_region_boundary (bool with_selection)
 893 {
 894         cursor_to_region_boundary (with_selection, -1);
 895 }
 896
 897 void
 898 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 899 {
 900         boost::shared_ptr<Region> r;
 901         framepos_t pos = cursor->current_frame ();
 902
 903         if (!_session) {
 904                 return;
 905         }
 906
 907         TimeAxisView *ontrack = 0;
 908
 909         // so we don't find the current region again..
 910         if (dir>0 || pos>0)
 911                 pos+=dir;
 912
 913         if (!selection->tracks.empty()) {
 914
 915                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 916
 917         } else if (clicked_axisview) {
 918
 919                 TrackViewList t;
 920                 t.push_back (clicked_axisview);
 921
 922                 r = find_next_region (pos, point, dir, t, &ontrack);
 923
 924         } else {
 925
 926                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 927         }
 928
 929         if (r == 0) {
 930                 return;
 931         }
 932
 933         switch (point) {
 934         case Start:
 935                 pos = r->first_frame ();
 936                 break;
 937
 938         case End:
 939                 pos = r->last_frame ();
 940                 break;
 941
 942         case SyncPoint:
 943                 pos = r->sync_position ();
 944                 break;
 945         }
 946
 947         float speed = 1.0f;
 948         RouteTimeAxisView *rtav;
 949
 950         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 951                 if (rtav->track() != 0) {
 952                         speed = rtav->track()->speed();
 953                 }
 954         }
 955
 956         pos = track_frame_to_session_frame(pos, speed);
 957
 958         if (cursor == playhead_cursor) {
 959                 _session->request_locate (pos);
 960         } else {
 961                 cursor->set_position (pos);
 962         }
 963 }
 964
 965 void
 966 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 967 {
 968         cursor_to_region_point (cursor, point, 1);
 969 }
 970
 971 void
 972 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 973 {
 974         cursor_to_region_point (cursor, point, -1);
 975 }
 976
 977 void
 978 Editor::cursor_to_selection_start (EditorCursor *cursor)
 979 {
 980         framepos_t pos = 0;
 981
 982         switch (mouse_mode) {
 983         case MouseObject:
 984                 if (!selection->regions.empty()) {
 985                         pos = selection->regions.start();
 986                 }
 987                 break;
 988
 989         case MouseRange:
 990                 if (!selection->time.empty()) {
 991                         pos = selection->time.start ();
 992                 }
 993                 break;
 994
 995         default:
 996                 return;
 997         }
 998
 999         if (cursor == playhead_cursor) {
1000                 _session->request_locate (pos);
1001         } else {
1002                 cursor->set_position (pos);
1003         }
1004 }
1005
1006 void
1007 Editor::cursor_to_selection_end (EditorCursor *cursor)
1008 {
1009         framepos_t pos = 0;
1010
1011         switch (mouse_mode) {
1012         case MouseObject:
1013                 if (!selection->regions.empty()) {
1014                         pos = selection->regions.end_frame();
1015                 }
1016                 break;
1017
1018         case MouseRange:
1019                 if (!selection->time.empty()) {
1020                         pos = selection->time.end_frame ();
1021                 }
1022                 break;
1023
1024         default:
1025                 return;
1026         }
1027
1028         if (cursor == playhead_cursor) {
1029                 _session->request_locate (pos);
1030         } else {
1031                 cursor->set_position (pos);
1032         }
1033 }
1034
1035 void
1036 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
1037 {
1038         framepos_t target;
1039         Location* loc;
1040         bool ignored;
1041
1042         if (!_session) {
1043                 return;
1044         }
1045
1046         if (selection->markers.empty()) {
1047                 framepos_t mouse;
1048                 bool ignored;
1049
1050                 if (!mouse_frame (mouse, ignored)) {
1051                         return;
1052                 }
1053
1054                 add_location_mark (mouse);
1055         }
1056
1057         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1058                 return;
1059         }
1060
1061         framepos_t pos = loc->start();
1062
1063         // so we don't find the current region again..
1064         if (dir > 0 || pos > 0) {
1065                 pos += dir;
1066         }
1067
1068         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1069                 return;
1070         }
1071
1072         loc->move_to (target);
1073 }
1074
1075 void
1076 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1077 {
1078         selected_marker_to_region_boundary (with_selection, 1);
1079 }
1080
1081 void
1082 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1083 {
1084         selected_marker_to_region_boundary (with_selection, -1);
1085 }
1086
1087 void
1088 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1089 {
1090         boost::shared_ptr<Region> r;
1091         framepos_t pos;
1092         Location* loc;
1093         bool ignored;
1094
1095         if (!_session || selection->markers.empty()) {
1096                 return;
1097         }
1098
1099         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1100                 return;
1101         }
1102
1103         TimeAxisView *ontrack = 0;
1104
1105         pos = loc->start();
1106
1107         // so we don't find the current region again..
1108         if (dir>0 || pos>0)
1109                 pos+=dir;
1110
1111         if (!selection->tracks.empty()) {
1112
1113                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1114
1115         } else {
1116
1117                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1118         }
1119
1120         if (r == 0) {
1121                 return;
1122         }
1123
1124         switch (point) {
1125         case Start:
1126                 pos = r->first_frame ();
1127                 break;
1128
1129         case End:
1130                 pos = r->last_frame ();
1131                 break;
1132
1133         case SyncPoint:
1134                 pos = r->adjust_to_sync (r->first_frame());
1135                 break;
1136         }
1137
1138         float speed = 1.0f;
1139         RouteTimeAxisView *rtav;
1140
1141         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1142                 if (rtav->track() != 0) {
1143                         speed = rtav->track()->speed();
1144                 }
1145         }
1146
1147         pos = track_frame_to_session_frame(pos, speed);
1148
1149         loc->move_to (pos);
1150 }
1151
1152 void
1153 Editor::selected_marker_to_next_region_point (RegionPoint point)
1154 {
1155         selected_marker_to_region_point (point, 1);
1156 }
1157
1158 void
1159 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1160 {
1161         selected_marker_to_region_point (point, -1);
1162 }
1163
1164 void
1165 Editor::selected_marker_to_selection_start ()
1166 {
1167         framepos_t pos = 0;
1168         Location* loc;
1169         bool ignored;
1170
1171         if (!_session || selection->markers.empty()) {
1172                 return;
1173         }
1174
1175         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1176                 return;
1177         }
1178
1179         switch (mouse_mode) {
1180         case MouseObject:
1181                 if (!selection->regions.empty()) {
1182                         pos = selection->regions.start();
1183                 }
1184                 break;
1185
1186         case MouseRange:
1187                 if (!selection->time.empty()) {
1188                         pos = selection->time.start ();
1189                 }
1190                 break;
1191
1192         default:
1193                 return;
1194         }
1195
1196         loc->move_to (pos);
1197 }
1198
1199 void
1200 Editor::selected_marker_to_selection_end ()
1201 {
1202         framepos_t pos = 0;
1203         Location* loc;
1204         bool ignored;
1205
1206         if (!_session || selection->markers.empty()) {
1207                 return;
1208         }
1209
1210         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1211                 return;
1212         }
1213
1214         switch (mouse_mode) {
1215         case MouseObject:
1216                 if (!selection->regions.empty()) {
1217                         pos = selection->regions.end_frame();
1218                 }
1219                 break;
1220
1221         case MouseRange:
1222                 if (!selection->time.empty()) {
1223                         pos = selection->time.end_frame ();
1224                 }
1225                 break;
1226
1227         default:
1228                 return;
1229         }
1230
1231         loc->move_to (pos);
1232 }
1233
1234 void
1235 Editor::scroll_playhead (bool forward)
1236 {
1237         framepos_t pos = playhead_cursor->current_frame ();
1238         framecnt_t delta = (framecnt_t) floor (current_page_samples() / 0.8);
1239
1240         if (forward) {
1241                 if (pos == max_framepos) {
1242                         return;
1243                 }
1244
1245                 if (pos < max_framepos - delta) {
1246                         pos += delta ;
1247                 } else {
1248                         pos = max_framepos;
1249                 }
1250
1251         } else {
1252
1253                 if (pos == 0) {
1254                         return;
1255                 }
1256
1257                 if (pos > delta) {
1258                         pos -= delta;
1259                 } else {
1260                         pos = 0;
1261                 }
1262         }
1263
1264         _session->request_locate (pos);
1265 }
1266
1267 void
1268 Editor::cursor_align (bool playhead_to_edit)
1269 {
1270         if (!_session) {
1271                 return;
1272         }
1273
1274         if (playhead_to_edit) {
1275
1276                 if (selection->markers.empty()) {
1277                         return;
1278                 }
1279
1280                 _session->request_locate (selection->markers.front()->position(), _session->transport_rolling());
1281
1282         } else {
1283                 /* move selected markers to playhead */
1284
1285                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1286                         bool ignored;
1287
1288                         Location* loc = find_location_from_marker (*i, ignored);
1289
1290                         if (loc->is_mark()) {
1291                                 loc->set_start (playhead_cursor->current_frame ());
1292                         } else {
1293                                 loc->set (playhead_cursor->current_frame (),
1294                                           playhead_cursor->current_frame () + loc->length());
1295                         }
1296                 }
1297         }
1298 }
1299
1300 void
1301 Editor::scroll_backward (float pages)
1302 {
1303         framepos_t const one_page = (framepos_t) rint (_visible_canvas_width * samples_per_pixel);
1304         framepos_t const cnt = (framepos_t) floor (pages * one_page);
1305
1306         framepos_t frame;
1307         if (leftmost_frame < cnt) {
1308                 frame = 0;
1309         } else {
1310                 frame = leftmost_frame - cnt;
1311         }
1312
1313         reset_x_origin (frame);
1314 }
1315
1316 void
1317 Editor::scroll_forward (float pages)
1318 {
1319         framepos_t const one_page = (framepos_t) rint (_visible_canvas_width * samples_per_pixel);
1320         framepos_t const cnt = (framepos_t) floor (pages * one_page);
1321
1322         framepos_t frame;
1323         if (max_framepos - cnt < leftmost_frame) {
1324                 frame = max_framepos - cnt;
1325         } else {
1326                 frame = leftmost_frame + cnt;
1327         }
1328
1329         reset_x_origin (frame);
1330 }
1331
1332 void
1333 Editor::scroll_tracks_down ()
1334 {
1335         double vert_value = vertical_adjustment.get_value() + vertical_adjustment.get_page_size();
1336         if (vert_value > vertical_adjustment.get_upper() - _visible_canvas_height) {
1337                 vert_value = vertical_adjustment.get_upper() - _visible_canvas_height;
1338         }
1339
1340         vertical_adjustment.set_value (vert_value);
1341 }
1342
1343 void
1344 Editor::scroll_tracks_up ()
1345 {
1346         vertical_adjustment.set_value (vertical_adjustment.get_value() - vertical_adjustment.get_page_size());
1347 }
1348
1349 void
1350 Editor::scroll_tracks_down_line ()
1351 {
1352         double vert_value = vertical_adjustment.get_value() + 60;
1353
1354         if (vert_value > vertical_adjustment.get_upper() - _visible_canvas_height) {
1355                 vert_value = vertical_adjustment.get_upper() - _visible_canvas_height;
1356         }
1357
1358         vertical_adjustment.set_value (vert_value);
1359 }
1360
1361 void
1362 Editor::scroll_tracks_up_line ()
1363 {
1364         reset_y_origin (vertical_adjustment.get_value() - 60);
1365 }
1366
1367 bool
1368 Editor::scroll_down_one_track ()
1369 {
1370         TrackViewList::reverse_iterator next = track_views.rend();
1371         std::pair<TimeAxisView*,double> res;
1372         const double top_of_trackviews = vertical_adjustment.get_value();
1373
1374         for (TrackViewList::reverse_iterator t = track_views.rbegin(); t != track_views.rend(); ++t) {
1375                 if ((*t)->hidden()) {
1376                         continue;
1377                 }
1378
1379
1380                 /* If this is the upper-most visible trackview, we want to display
1381                    the one above it (next)
1382                 */
1383
1384                 res = (*t)->covers_y_position (top_of_trackviews);
1385
1386                 if (res.first) {
1387                         break;
1388                 }
1389                 next = t;
1390         }
1391
1392         /* move to the track below the first one that covers the */
1393
1394         if (next != track_views.rend()) {
1395                 ensure_time_axis_view_is_visible (**next, true);
1396                 return true;
1397         }
1398
1399         return false;
1400 }
1401
1402 bool
1403 Editor::scroll_up_one_track ()
1404 {
1405         TrackViewList::iterator prev = track_views.end();
1406         std::pair<TimeAxisView*,double> res;
1407         double top_of_trackviews = vertical_adjustment.get_value ();
1408
1409         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
1410
1411                 if ((*t)->hidden()) {
1412                         continue;
1413                 }
1414
1415                 /* find the trackview at the top of the trackview group */
1416                 res = (*t)->covers_y_position (top_of_trackviews);
1417
1418                 if (res.first) {
1419                         break;
1420                 }
1421
1422                 prev = t;
1423         }
1424
1425         if (prev != track_views.end()) {
1426                 ensure_time_axis_view_is_visible (**prev, true);
1427                 return true;
1428         }
1429
1430         return false;
1431 }
1432
1433 /* ZOOM */
1434
1435 void
1436 Editor::tav_zoom_step (bool coarser)
1437 {
1438         DisplaySuspender ds;
1439
1440         TrackViewList* ts;
1441
1442         if (selection->tracks.empty()) {
1443                 ts = &track_views;
1444         } else {
1445                 ts = &selection->tracks;
1446         }
1447
1448         for (TrackViewList::iterator i = ts->begin(); i != ts->end(); ++i) {
1449                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1450                         tv->step_height (coarser);
1451         }
1452 }
1453
1454 void
1455 Editor::tav_zoom_smooth (bool coarser, bool force_all)
1456 {
1457         DisplaySuspender ds;
1458
1459         TrackViewList* ts;
1460
1461         if (selection->tracks.empty() || force_all) {
1462                 ts = &track_views;
1463         } else {
1464                 ts = &selection->tracks;
1465         }
1466
1467         for (TrackViewList::iterator i = ts->begin(); i != ts->end(); ++i) {
1468                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1469                 uint32_t h = tv->current_height ();
1470
1471                 if (coarser) {
1472                         if (h > 5) {
1473                                 h -= 5; // pixels
1474                                 if (h >= TimeAxisView::preset_height (HeightSmall)) {
1475                                         tv->set_height (h);
1476                                 }
1477                         }
1478                 } else {
1479                         tv->set_height (h + 5);
1480                 }
1481         }
1482 }
1483
1484
1485 void
1486 Editor::temporal_zoom_step (bool coarser)
1487 {
1488         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, coarser)
1489
1490         framecnt_t nspp = samples_per_pixel;
1491
1492         if (coarser) {
1493                 nspp *= 2;
1494         } else {
1495                 nspp /= 2;
1496         }
1497
1498         temporal_zoom (nspp);
1499 }
1500
1501 void
1502 Editor::temporal_zoom (framecnt_t fpp)
1503 {
1504         if (!_session) {
1505                 return;
1506         }
1507
1508         framepos_t current_page = current_page_samples();
1509         framepos_t current_leftmost = leftmost_frame;
1510         framepos_t current_rightmost;
1511         framepos_t current_center;
1512         framepos_t new_page_size;
1513         framepos_t half_page_size;
1514         framepos_t leftmost_after_zoom = 0;
1515         framepos_t where;
1516         bool in_track_canvas;
1517         framecnt_t nfpp;
1518         double l;
1519
1520         if (fpp == samples_per_pixel) {
1521                 return;
1522         }
1523
1524         // Imposing an arbitrary limit to zoom out as too much zoom out produces
1525         // segfaults for lack of memory. If somebody decides this is not high enough I
1526         // believe it can be raisen to higher values but some limit must be in place.
1527         //
1528         // This constant represents 1 day @ 48kHz on a 1600 pixel wide display
1529         // all of which is used for the editor track displays. The whole day
1530         // would be 4147200000 samples, so 2592000 samples per pixel.
1531
1532         nfpp = min (fpp, (framecnt_t) 2592000);
1533         nfpp = max ((framecnt_t) 1, fpp);
1534
1535         new_page_size = (framepos_t) floor (_visible_canvas_width * nfpp);
1536         half_page_size = new_page_size / 2;
1537
1538         switch (zoom_focus) {
1539         case ZoomFocusLeft:
1540                 leftmost_after_zoom = current_leftmost;
1541                 break;
1542
1543         case ZoomFocusRight:
1544                 current_rightmost = leftmost_frame + current_page;
1545                 if (current_rightmost < new_page_size) {
1546                         leftmost_after_zoom = 0;
1547                 } else {
1548                         leftmost_after_zoom = current_rightmost - new_page_size;
1549                 }
1550                 break;
1551
1552         case ZoomFocusCenter:
1553                 current_center = current_leftmost + (current_page/2);
1554                 if (current_center < half_page_size) {
1555                         leftmost_after_zoom = 0;
1556                 } else {
1557                         leftmost_after_zoom = current_center - half_page_size;
1558                 }
1559                 break;
1560
1561         case ZoomFocusPlayhead:
1562                 /* centre playhead */
1563                 l = playhead_cursor->current_frame () - (new_page_size * 0.5);
1564
1565                 if (l < 0) {
1566                         leftmost_after_zoom = 0;
1567                 } else if (l > max_framepos) {
1568                         leftmost_after_zoom = max_framepos - new_page_size;
1569                 } else {
1570                         leftmost_after_zoom = (framepos_t) l;
1571                 }
1572                 break;
1573
1574         case ZoomFocusMouse:
1575                 /* try to keep the mouse over the same point in the display */
1576
1577                 if (!mouse_frame (where, in_track_canvas)) {
1578                         /* use playhead instead */
1579                         where = playhead_cursor->current_frame ();
1580
1581                         if (where < half_page_size) {
1582                                 leftmost_after_zoom = 0;
1583                         } else {
1584                                 leftmost_after_zoom = where - half_page_size;
1585                         }
1586
1587                 } else {
1588
1589                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1590
1591                         if (l < 0) {
1592                                 leftmost_after_zoom = 0;
1593                         } else if (l > max_framepos) {
1594                                 leftmost_after_zoom = max_framepos - new_page_size;
1595                         } else {
1596                                 leftmost_after_zoom = (framepos_t) l;
1597                         }
1598                 }
1599
1600                 break;
1601
1602         case ZoomFocusEdit:
1603                 /* try to keep the edit point in the same place */
1604                 where = get_preferred_edit_position ();
1605
1606                 if (where > 0) {
1607
1608                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1609
1610                         if (l < 0) {
1611                                 leftmost_after_zoom = 0;
1612                         } else if (l > max_framepos) {
1613                                 leftmost_after_zoom = max_framepos - new_page_size;
1614                         } else {
1615                                 leftmost_after_zoom = (framepos_t) l;
1616                         }
1617
1618                 } else {
1619                         /* edit point not defined */
1620                         return;
1621                 }
1622                 break;
1623
1624         }
1625
1626         // leftmost_after_zoom = min (leftmost_after_zoom, _session->current_end_frame());
1627
1628         reposition_and_zoom (leftmost_after_zoom, nfpp);
1629 }
1630
1631 void
1632 Editor::calc_extra_zoom_edges(framepos_t &start, framepos_t &end)
1633 {
1634         /* this func helps make sure we leave a little space
1635            at each end of the editor so that the zoom doesn't fit the region
1636            precisely to the screen.
1637         */
1638
1639         GdkScreen* screen = gdk_screen_get_default ();
1640         const gint pixwidth = gdk_screen_get_width (screen);
1641         const gint mmwidth = gdk_screen_get_width_mm (screen);
1642         const double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1643         const double one_centimeter_in_pixels = pix_per_mm * 10.0;
1644
1645         const framepos_t range = end - start;
1646         const framecnt_t new_fpp = (framecnt_t) ceil ((double) range / (double) _visible_canvas_width);
1647         const framepos_t extra_samples = (framepos_t) floor (one_centimeter_in_pixels * new_fpp);
1648
1649         if (start > extra_samples) {
1650                 start -= extra_samples;
1651         } else {
1652                 start = 0;
1653         }
1654
1655         if (max_framepos - extra_samples > end) {
1656                 end += extra_samples;
1657         } else {
1658                 end = max_framepos;
1659         }
1660 }
1661
1662 void
1663 Editor::temporal_zoom_region (bool both_axes)
1664 {
1665         framepos_t start = max_framepos;
1666         framepos_t end = 0;
1667         set<TimeAxisView*> tracks;
1668
1669         RegionSelection rs = get_regions_from_selection_and_entered ();
1670
1671         if (rs.empty()) {
1672                 return;
1673         }
1674
1675         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1676
1677                 if ((*i)->region()->position() < start) {
1678                         start = (*i)->region()->position();
1679                 }
1680
1681                 if ((*i)->region()->last_frame() + 1 > end) {
1682                         end = (*i)->region()->last_frame() + 1;
1683                 }
1684
1685                 tracks.insert (&((*i)->get_time_axis_view()));
1686         }
1687
1688         if ((start == 0 && end == 0) || end < start) {
1689                 return;
1690         }
1691
1692         calc_extra_zoom_edges (start, end);
1693
1694         /* if we're zooming on both axes we need to save track heights etc.
1695          */
1696
1697         undo_visual_stack.push_back (current_visual_state (both_axes));
1698
1699         PBD::Unwinder<bool> nsv (no_save_visual, true);
1700
1701         temporal_zoom_by_frame (start, end);
1702
1703         if (both_axes) {
1704                 uint32_t per_track_height = (uint32_t) floor ((_visible_canvas_height - 10.0) / tracks.size());
1705
1706                 /* set visible track heights appropriately */
1707
1708                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1709                         (*t)->set_height (per_track_height);
1710                 }
1711
1712                 /* hide irrelevant tracks */
1713
1714                 DisplaySuspender ds;
1715
1716                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1717                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1718                                 hide_track_in_display (*i);
1719                         }
1720                 }
1721
1722                 vertical_adjustment.set_value (0.0);
1723         }
1724
1725         redo_visual_stack.push_back (current_visual_state (both_axes));
1726 }
1727
1728 void
1729 Editor::zoom_to_region (bool both_axes)
1730 {
1731         temporal_zoom_region (both_axes);
1732 }
1733
1734 void
1735 Editor::temporal_zoom_selection (bool both_axes)
1736 {
1737         if (!selection) return;
1738
1739         //if a range is selected, zoom to that
1740         if (!selection->time.empty()) {
1741
1742                 framepos_t start = selection->time.start();
1743                 framepos_t end = selection->time.end_frame();
1744
1745                 calc_extra_zoom_edges(start, end);
1746
1747                 temporal_zoom_by_frame (start, end);
1748
1749                 if (both_axes)
1750                         fit_selected_tracks();
1751
1752         } else {
1753                 temporal_zoom_region (both_axes);
1754         }
1755
1756
1757 }
1758
1759 void
1760 Editor::temporal_zoom_session ()
1761 {
1762         ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_session)
1763
1764         if (_session) {
1765                 framecnt_t start = _session->current_start_frame();
1766                 framecnt_t end = _session->current_end_frame();
1767
1768                 if (_session->actively_recording () ) {
1769                         framepos_t cur = playhead_cursor->current_frame ();
1770                         if (cur > end) {
1771                                 /* recording beyond the end marker; zoom out
1772                                  * by 5 seconds more so that if 'follow
1773                                  * playhead' is active we don't immediately
1774                                  * scroll.
1775                                  */
1776                                 end = cur + _session->frame_rate() * 5;
1777                         }
1778                 }
1779
1780                 if ((start == 0 && end == 0) || end < start) {
1781                         return;
1782                 }
1783
1784                 calc_extra_zoom_edges(start, end);
1785
1786                 temporal_zoom_by_frame (start, end);
1787         }
1788 }
1789
1790 void
1791 Editor::temporal_zoom_by_frame (framepos_t start, framepos_t end)
1792 {
1793         if (!_session) return;
1794
1795         if ((start == 0 && end == 0) || end < start) {
1796                 return;
1797         }
1798
1799         framepos_t range = end - start;
1800
1801         const framecnt_t new_fpp = (framecnt_t) ceil ((double) range / (double) _visible_canvas_width);
1802
1803         framepos_t new_page = range;
1804         framepos_t middle = (framepos_t) floor ((double) start + ((double) range / 2.0f));
1805         framepos_t new_leftmost = (framepos_t) floor ((double) middle - ((double) new_page / 2.0f));
1806
1807         if (new_leftmost > middle) {
1808                 new_leftmost = 0;
1809         }
1810
1811         if (new_leftmost < 0) {
1812                 new_leftmost = 0;
1813         }
1814
1815         reposition_and_zoom (new_leftmost, new_fpp);
1816 }
1817
1818 void
1819 Editor::temporal_zoom_to_frame (bool coarser, framepos_t frame)
1820 {
1821         if (!_session) {
1822                 return;
1823         }
1824
1825         framecnt_t range_before = frame - leftmost_frame;
1826         framecnt_t new_spp;
1827
1828         if (coarser) {
1829                 if (samples_per_pixel <= 1) {
1830                         new_spp = 2;
1831                 } else {
1832                         new_spp = samples_per_pixel + (samples_per_pixel/2);
1833                 }
1834                 range_before += range_before/2;
1835         } else {
1836                 if (samples_per_pixel >= 1) {
1837                         new_spp = samples_per_pixel - (samples_per_pixel/2);
1838                 } else {
1839                         /* could bail out here since we cannot zoom any finer,
1840                            but leave that to the equality test below
1841                         */
1842                         new_spp = samples_per_pixel;
1843                 }
1844
1845                 range_before -= range_before/2;
1846         }
1847
1848         if (new_spp == samples_per_pixel)  {
1849                 return;
1850         }
1851
1852         /* zoom focus is automatically taken as @param frame when this
1853            method is used.
1854         */
1855
1856         framepos_t new_leftmost = frame - (framepos_t)range_before;
1857
1858         if (new_leftmost > frame) {
1859                 new_leftmost = 0;
1860         }
1861
1862         if (new_leftmost < 0) {
1863                 new_leftmost = 0;
1864         }
1865
1866         reposition_and_zoom (new_leftmost, new_spp);
1867 }
1868
1869
1870 bool
1871 Editor::choose_new_marker_name(string &name) {
1872
1873         if (!Config->get_name_new_markers()) {
1874                 /* don't prompt user for a new name */
1875                 return true;
1876         }
1877
1878         ArdourPrompter dialog (true);
1879
1880         dialog.set_prompt (_("New Name:"));
1881
1882         dialog.set_title (_("New Location Marker"));
1883
1884         dialog.set_name ("MarkNameWindow");
1885         dialog.set_size_request (250, -1);
1886         dialog.set_position (Gtk::WIN_POS_MOUSE);
1887
1888         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1889         dialog.set_initial_text (name);
1890
1891         dialog.show ();
1892
1893         switch (dialog.run ()) {
1894         case RESPONSE_ACCEPT:
1895                 break;
1896         default:
1897                 return false;
1898         }
1899
1900         dialog.get_result(name);
1901         return true;
1902
1903 }
1904
1905
1906 void
1907 Editor::add_location_from_selection ()
1908 {
1909         string rangename;
1910
1911         if (selection->time.empty()) {
1912                 return;
1913         }
1914
1915         if (_session == 0 || clicked_axisview == 0) {
1916                 return;
1917         }
1918
1919         framepos_t start = selection->time[clicked_selection].start;
1920         framepos_t end = selection->time[clicked_selection].end;
1921
1922         _session->locations()->next_available_name(rangename,"selection");
1923         Location *location = new Location (*_session, start, end, rangename, Location::IsRangeMarker);
1924
1925         _session->begin_reversible_command (_("add marker"));
1926         XMLNode &before = _session->locations()->get_state();
1927         _session->locations()->add (location, true);
1928         XMLNode &after = _session->locations()->get_state();
1929         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1930         _session->commit_reversible_command ();
1931 }
1932
1933 void
1934 Editor::add_location_mark (framepos_t where)
1935 {
1936         string markername;
1937
1938         select_new_marker = true;
1939
1940         _session->locations()->next_available_name(markername,"mark");
1941         if (!choose_new_marker_name(markername)) {
1942                 return;
1943         }
1944         Location *location = new Location (*_session, where, where, markername, Location::IsMark);
1945         _session->begin_reversible_command (_("add marker"));
1946         XMLNode &before = _session->locations()->get_state();
1947         _session->locations()->add (location, true);
1948         XMLNode &after = _session->locations()->get_state();
1949         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1950         _session->commit_reversible_command ();
1951 }
1952
1953 void
1954 Editor::add_location_from_playhead_cursor ()
1955 {
1956         add_location_mark (_session->audible_frame());
1957 }
1958
1959 void
1960 Editor::remove_location_at_playhead_cursor ()
1961 {
1962         if (_session) {
1963
1964                 //set up for undo
1965                 _session->begin_reversible_command (_("remove marker"));
1966                 XMLNode &before = _session->locations()->get_state();
1967                 bool removed = false;
1968
1969                 //find location(s) at this time
1970                 Locations::LocationList locs;
1971                 _session->locations()->find_all_between (_session->audible_frame(), _session->audible_frame()+1, locs, Location::Flags(0));
1972                 for (Locations::LocationList::iterator i = locs.begin(); i != locs.end(); ++i) {
1973                         if ((*i)->is_mark()) {
1974                                 _session->locations()->remove (*i);
1975                                 removed = true;
1976                         }
1977                 }
1978
1979                 //store undo
1980                 if (removed) {
1981                         XMLNode &after = _session->locations()->get_state();
1982                         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
1983                         _session->commit_reversible_command ();
1984                 }
1985         }
1986 }
1987
1988 /** Add a range marker around each selected region */
1989 void
1990 Editor::add_locations_from_region ()
1991 {
1992         RegionSelection rs = get_regions_from_selection_and_entered ();
1993
1994         if (rs.empty()) {
1995                 return;
1996         }
1997
1998         _session->begin_reversible_command (selection->regions.size () > 1 ? _("add markers") : _("add marker"));
1999         XMLNode &before = _session->locations()->get_state();
2000
2001         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
2002
2003                 boost::shared_ptr<Region> region = (*i)->region ();
2004
2005                 Location *location = new Location (*_session, region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
2006
2007                 _session->locations()->add (location, true);
2008         }
2009
2010         XMLNode &after = _session->locations()->get_state();
2011         _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2012         _session->commit_reversible_command ();
2013 }
2014
2015 /** Add a single range marker around all selected regions */
2016 void
2017 Editor::add_location_from_region ()
2018 {
2019         RegionSelection rs = get_regions_from_selection_and_entered ();
2020
2021         if (rs.empty()) {
2022                 return;
2023         }
2024
2025         _session->begin_reversible_command (_("add marker"));
2026         XMLNode &before = _session->locations()->get_state();
2027
2028         string markername;
2029
2030         if (rs.size() > 1) {
2031                 _session->locations()->next_available_name(markername, "regions");
2032         } else {
2033                 RegionView* rv = *(rs.begin());
2034                 boost::shared_ptr<Region> region = rv->region();
2035                 markername = region->name();
2036         }
2037
2038         if (!choose_new_marker_name(markername)) {
2039                 return;
2040         }
2041
2042         // single range spanning all selected
2043         Location *location = new Location (*_session, selection->regions.start(), selection->regions.end_frame(), markername, Location::IsRangeMarker);
2044         _session->locations()->add (location, true);
2045
2046         XMLNode &after = _session->locations()->get_state();
2047         _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2048         _session->commit_reversible_command ();
2049 }
2050
2051 /* MARKS */
2052
2053 void
2054 Editor::jump_forward_to_mark ()
2055 {
2056         if (!_session) {
2057                 return;
2058         }
2059
2060         framepos_t pos = _session->locations()->first_mark_after (playhead_cursor->current_frame());
2061
2062         if (pos < 0) {
2063                 return;
2064         }
2065
2066         _session->request_locate (pos, _session->transport_rolling());
2067 }
2068
2069 void
2070 Editor::jump_backward_to_mark ()
2071 {
2072         if (!_session) {
2073                 return;
2074         }
2075
2076         framepos_t pos = _session->locations()->first_mark_before (playhead_cursor->current_frame());
2077
2078         if (pos < 0) {
2079                 return;
2080         }
2081
2082         _session->request_locate (pos, _session->transport_rolling());
2083 }
2084
2085 void
2086 Editor::set_mark ()
2087 {
2088         framepos_t const pos = _session->audible_frame ();
2089
2090         string markername;
2091         _session->locations()->next_available_name (markername, "mark");
2092
2093         if (!choose_new_marker_name (markername)) {
2094                 return;
2095         }
2096
2097         _session->locations()->add (new Location (*_session, pos, 0, markername, Location::IsMark), true);
2098 }
2099
2100 void
2101 Editor::clear_markers ()
2102 {
2103         if (_session) {
2104                 _session->begin_reversible_command (_("clear markers"));
2105                 XMLNode &before = _session->locations()->get_state();
2106                 _session->locations()->clear_markers ();
2107                 XMLNode &after = _session->locations()->get_state();
2108                 _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2109                 _session->commit_reversible_command ();
2110         }
2111 }
2112
2113 void
2114 Editor::clear_ranges ()
2115 {
2116         if (_session) {
2117                 _session->begin_reversible_command (_("clear ranges"));
2118                 XMLNode &before = _session->locations()->get_state();
2119
2120                 _session->locations()->clear_ranges ();
2121
2122                 XMLNode &after = _session->locations()->get_state();
2123                 _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2124                 _session->commit_reversible_command ();
2125         }
2126 }
2127
2128 void
2129 Editor::clear_locations ()
2130 {
2131         _session->begin_reversible_command (_("clear locations"));
2132         XMLNode &before = _session->locations()->get_state();
2133         _session->locations()->clear ();
2134         XMLNode &after = _session->locations()->get_state();
2135         _session->add_command(new MementoCommand<Locations>(*(_session->locations()), &before, &after));
2136         _session->commit_reversible_command ();
2137         _session->locations()->clear ();
2138 }
2139
2140 void
2141 Editor::unhide_markers ()
2142 {
2143         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2144                 Location *l = (*i).first;
2145                 if (l->is_hidden() && l->is_mark()) {
2146                         l->set_hidden(false, this);
2147                 }
2148         }
2149 }
2150
2151 void
2152 Editor::unhide_ranges ()
2153 {
2154         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2155                 Location *l = (*i).first;
2156                 if (l->is_hidden() && l->is_range_marker()) {
2157                         l->set_hidden(false, this);
2158                 }
2159         }
2160 }
2161
2162 /* INSERT/REPLACE */
2163
2164 void
2165 Editor::insert_region_list_selection (float times)
2166 {
2167         RouteTimeAxisView *tv = 0;
2168         boost::shared_ptr<Playlist> playlist;
2169
2170         if (clicked_routeview != 0) {
2171                 tv = clicked_routeview;
2172         } else if (!selection->tracks.empty()) {
2173                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2174                         return;
2175                 }
2176         } else if (entered_track != 0) {
2177                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2178                         return;
2179                 }
2180         } else {
2181                 return;
2182         }
2183
2184         if ((playlist = tv->playlist()) == 0) {
2185                 return;
2186         }
2187
2188         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2189         if (region == 0) {
2190                 return;
2191         }
2192
2193         begin_reversible_command (_("insert region"));
2194         playlist->clear_changes ();
2195         playlist->add_region ((RegionFactory::create (region, true)), get_preferred_edit_position(), times);
2196         if (Config->get_edit_mode() == Ripple)
2197                 playlist->ripple (get_preferred_edit_position(), region->length() * times, boost::shared_ptr<Region>());
2198
2199         _session->add_command(new StatefulDiffCommand (playlist));
2200         commit_reversible_command ();
2201 }
2202
2203 /* BUILT-IN EFFECTS */
2204
2205 void
2206 Editor::reverse_selection ()
2207 {
2208
2209 }
2210
2211 /* GAIN ENVELOPE EDITING */
2212
2213 void
2214 Editor::edit_envelope ()
2215 {
2216 }
2217
2218 /* PLAYBACK */
2219
2220 void
2221 Editor::transition_to_rolling (bool fwd)
2222 {
2223         if (!_session) {
2224                 return;
2225         }
2226
2227         if (_session->config.get_external_sync()) {
2228                 switch (Config->get_sync_source()) {
2229                 case Engine:
2230                         break;
2231                 default:
2232                         /* transport controlled by the master */
2233                         return;
2234                 }
2235         }
2236
2237         if (_session->is_auditioning()) {
2238                 _session->cancel_audition ();
2239                 return;
2240         }
2241
2242         _session->request_transport_speed (fwd ? 1.0f : -1.0f);
2243 }
2244
2245 void
2246 Editor::play_from_start ()
2247 {
2248         _session->request_locate (_session->current_start_frame(), true);
2249 }
2250
2251 void
2252 Editor::play_from_edit_point ()
2253 {
2254         _session->request_locate (get_preferred_edit_position(), true);
2255 }
2256
2257 void
2258 Editor::play_from_edit_point_and_return ()
2259 {
2260         framepos_t start_frame;
2261         framepos_t return_frame;
2262
2263         start_frame = get_preferred_edit_position (true);
2264
2265         if (_session->transport_rolling()) {
2266                 _session->request_locate (start_frame, false);
2267                 return;
2268         }
2269
2270         /* don't reset the return frame if its already set */
2271
2272         if ((return_frame = _session->requested_return_frame()) < 0) {
2273                 return_frame = _session->audible_frame();
2274         }
2275
2276         if (start_frame >= 0) {
2277                 _session->request_roll_at_and_return (start_frame, return_frame);
2278         }
2279 }
2280
2281 void
2282 Editor::play_selection ()
2283 {
2284         if (selection->time.empty()) {
2285                 return;
2286         }
2287
2288         _session->request_play_range (&selection->time, true);
2289 }
2290
2291 framepos_t
2292 Editor::get_preroll ()
2293 {
2294         return 1.0 /*Config->get_edit_preroll_seconds()*/ * _session->frame_rate();
2295 }
2296
2297
2298 void
2299 Editor::maybe_locate_with_edit_preroll ( framepos_t location )
2300 {
2301         if ( _session->transport_rolling() || !Config->get_follow_edits() || _ignore_follow_edits )
2302                 return;
2303
2304         location -= get_preroll();
2305
2306         //don't try to locate before the beginning of time
2307         if ( location < 0 )
2308                 location = 0;
2309
2310         //if follow_playhead is on, keep the playhead on the screen
2311         if ( _follow_playhead )
2312                 if ( location < leftmost_frame )
2313                         location = leftmost_frame;
2314
2315         _session->request_locate( location );
2316 }
2317
2318 void
2319 Editor::play_with_preroll ()
2320 {
2321         if (selection->time.empty()) {
2322                 return;
2323         } else {
2324                 framepos_t preroll = get_preroll();
2325
2326                 framepos_t start = 0;
2327                 if (selection->time[clicked_selection].start > preroll)
2328                         start = selection->time[clicked_selection].start - preroll;
2329
2330                 framepos_t end = selection->time[clicked_selection].end + preroll;
2331
2332                 AudioRange ar (start, end, 0);
2333                 list<AudioRange> lar;
2334                 lar.push_back (ar);
2335
2336                 _session->request_play_range (&lar, true);
2337         }
2338 }
2339
2340 void
2341 Editor::play_location (Location& location)
2342 {
2343         if (location.start() <= location.end()) {
2344                 return;
2345         }
2346
2347         _session->request_bounded_roll (location.start(), location.end());
2348 }
2349
2350 void
2351 Editor::loop_location (Location& location)
2352 {
2353         if (location.start() <= location.end()) {
2354                 return;
2355         }
2356
2357         Location* tll;
2358
2359         if ((tll = transport_loop_location()) != 0) {
2360                 tll->set (location.start(), location.end());
2361
2362                 // enable looping, reposition and start rolling
2363                 _session->request_locate (tll->start(), true);
2364                 _session->request_play_loop (true);
2365         }
2366 }
2367
2368 void
2369 Editor::do_layer_operation (LayerOperation op)
2370 {
2371         if (selection->regions.empty ()) {
2372                 return;
2373         }
2374
2375         bool const multiple = selection->regions.size() > 1;
2376         switch (op) {
2377         case Raise:
2378                 if (multiple) {
2379                         begin_reversible_command (_("raise regions"));
2380                 } else {
2381                         begin_reversible_command (_("raise region"));
2382                 }
2383                 break;
2384
2385         case RaiseToTop:
2386                 if (multiple) {
2387                         begin_reversible_command (_("raise regions to top"));
2388                 } else {
2389                         begin_reversible_command (_("raise region to top"));
2390                 }
2391                 break;
2392
2393         case Lower:
2394                 if (multiple) {
2395                         begin_reversible_command (_("lower regions"));
2396                 } else {
2397                         begin_reversible_command (_("lower region"));
2398                 }
2399                 break;
2400
2401         case LowerToBottom:
2402                 if (multiple) {
2403                         begin_reversible_command (_("lower regions to bottom"));
2404                 } else {
2405                         begin_reversible_command (_("lower region"));
2406                 }
2407                 break;
2408         }
2409
2410         set<boost::shared_ptr<Playlist> > playlists = selection->regions.playlists ();
2411         for (set<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2412                 (*i)->clear_owned_changes ();
2413         }
2414
2415         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2416                 boost::shared_ptr<Region> r = (*i)->region ();
2417                 switch (op) {
2418                 case Raise:
2419                         r->raise ();
2420                         break;
2421                 case RaiseToTop:
2422                         r->raise_to_top ();
2423                         break;
2424                 case Lower:
2425                         r->lower ();
2426                         break;
2427                 case LowerToBottom:
2428                         r->lower_to_bottom ();
2429                 }
2430         }
2431
2432         for (set<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2433                 vector<Command*> cmds;
2434                 (*i)->rdiff (cmds);
2435                 _session->add_commands (cmds);
2436         }
2437
2438         commit_reversible_command ();
2439 }
2440
2441 void
2442 Editor::raise_region ()
2443 {
2444         do_layer_operation (Raise);
2445 }
2446
2447 void
2448 Editor::raise_region_to_top ()
2449 {
2450         do_layer_operation (RaiseToTop);
2451 }
2452
2453 void
2454 Editor::lower_region ()
2455 {
2456         do_layer_operation (Lower);
2457 }
2458
2459 void
2460 Editor::lower_region_to_bottom ()
2461 {
2462         do_layer_operation (LowerToBottom);
2463 }
2464
2465 /** Show the region editor for the selected regions */
2466 void
2467 Editor::show_region_properties ()
2468 {
2469         selection->foreach_regionview (&RegionView::show_region_editor);
2470 }
2471
2472 /** Show the midi list editor for the selected MIDI regions */
2473 void
2474 Editor::show_midi_list_editor ()
2475 {
2476         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2477 }
2478
2479 void
2480 Editor::rename_region ()
2481 {
2482         RegionSelection rs = get_regions_from_selection_and_entered ();
2483
2484         if (rs.empty()) {
2485                 return;
2486         }
2487
2488         ArdourDialog d (*this, _("Rename Region"), true, false);
2489         Entry entry;
2490         Label label (_("New name:"));
2491         HBox hbox;
2492
2493         hbox.set_spacing (6);
2494         hbox.pack_start (label, false, false);
2495         hbox.pack_start (entry, true, true);
2496
2497         d.get_vbox()->set_border_width (12);
2498         d.get_vbox()->pack_start (hbox, false, false);
2499
2500         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2501         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2502
2503         d.set_size_request (300, -1);
2504
2505         entry.set_text (rs.front()->region()->name());
2506         entry.select_region (0, -1);
2507
2508         entry.signal_activate().connect (sigc::bind (sigc::mem_fun (d, &Dialog::response), RESPONSE_OK));
2509
2510         d.show_all ();
2511
2512         entry.grab_focus();
2513
2514         int const ret = d.run();
2515
2516         d.hide ();
2517
2518         if (ret != RESPONSE_OK) {
2519                 return;
2520         }
2521
2522         std::string str = entry.get_text();
2523         strip_whitespace_edges (str);
2524         if (!str.empty()) {
2525                 rs.front()->region()->set_name (str);
2526                 _regions->redisplay ();
2527         }
2528 }
2529
2530 void
2531 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2532 {
2533         if (_session->is_auditioning()) {
2534                 _session->cancel_audition ();
2535         }
2536
2537         // note: some potential for creativity here, because region doesn't
2538         // have to belong to the playlist that Route is handling
2539
2540         // bool was_soloed = route.soloed();
2541
2542         route.set_solo (true, this);
2543
2544         _session->request_bounded_roll (region->position(), region->position() + region->length());
2545
2546         /* XXX how to unset the solo state ? */
2547 }
2548
2549 /** Start an audition of the first selected region */
2550 void
2551 Editor::play_edit_range ()
2552 {
2553         framepos_t start, end;
2554
2555         if (get_edit_op_range (start, end)) {
2556                 _session->request_bounded_roll (start, end);
2557         }
2558 }
2559
2560 void
2561 Editor::play_selected_region ()
2562 {
2563         framepos_t start = max_framepos;
2564         framepos_t end = 0;
2565
2566         RegionSelection rs = get_regions_from_selection_and_entered ();
2567
2568         if (rs.empty()) {
2569                 return;
2570         }
2571
2572         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2573                 if ((*i)->region()->position() < start) {
2574                         start = (*i)->region()->position();
2575                 }
2576                 if ((*i)->region()->last_frame() + 1 > end) {
2577                         end = (*i)->region()->last_frame() + 1;
2578                 }
2579         }
2580
2581         _session->request_bounded_roll (start, end);
2582 }
2583
2584 void
2585 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2586 {
2587         _session->audition_region (region);
2588 }
2589
2590 void
2591 Editor::region_from_selection ()
2592 {
2593         if (clicked_axisview == 0) {
2594                 return;
2595         }
2596
2597         if (selection->time.empty()) {
2598                 return;
2599         }
2600
2601         framepos_t start = selection->time[clicked_selection].start;
2602         framepos_t end = selection->time[clicked_selection].end;
2603
2604         TrackViewList tracks = get_tracks_for_range_action ();
2605
2606         framepos_t selection_cnt = end - start + 1;
2607
2608         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2609                 boost::shared_ptr<Region> current;
2610                 boost::shared_ptr<Playlist> pl;
2611                 framepos_t internal_start;
2612                 string new_name;
2613
2614                 if ((pl = (*i)->playlist()) == 0) {
2615                         continue;
2616                 }
2617
2618                 if ((current = pl->top_region_at (start)) == 0) {
2619                         continue;
2620                 }
2621
2622                 internal_start = start - current->position();
2623                 RegionFactory::region_name (new_name, current->name(), true);
2624
2625                 PropertyList plist;
2626
2627                 plist.add (ARDOUR::Properties::start, current->start() + internal_start);
2628                 plist.add (ARDOUR::Properties::length, selection_cnt);
2629                 plist.add (ARDOUR::Properties::name, new_name);
2630                 plist.add (ARDOUR::Properties::layer, 0);
2631
2632                 boost::shared_ptr<Region> region (RegionFactory::create (current, plist));
2633         }
2634 }
2635
2636 void
2637 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2638 {
2639         if (selection->time.empty() || selection->tracks.empty()) {
2640                 return;
2641         }
2642
2643         framepos_t start = selection->time[clicked_selection].start;
2644         framepos_t end = selection->time[clicked_selection].end;
2645
2646         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
2647         sort_track_selection (ts);
2648
2649         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
2650                 boost::shared_ptr<Region> current;
2651                 boost::shared_ptr<Playlist> playlist;
2652                 framepos_t internal_start;
2653                 string new_name;
2654
2655                 if ((playlist = (*i)->playlist()) == 0) {
2656                         continue;
2657                 }
2658
2659                 if ((current = playlist->top_region_at(start)) == 0) {
2660                         continue;
2661                 }
2662
2663                 internal_start = start - current->position();
2664                 RegionFactory::region_name (new_name, current->name(), true);
2665
2666                 PropertyList plist;
2667
2668                 plist.add (ARDOUR::Properties::start, current->start() + internal_start);
2669                 plist.add (ARDOUR::Properties::length, end - start + 1);
2670                 plist.add (ARDOUR::Properties::name, new_name);
2671
2672                 new_regions.push_back (RegionFactory::create (current, plist));
2673         }
2674 }
2675
2676 void
2677 Editor::split_multichannel_region ()
2678 {
2679         RegionSelection rs = get_regions_from_selection_and_entered ();
2680
2681         if (rs.empty()) {
2682                 return;
2683         }
2684
2685         vector< boost::shared_ptr<Region> > v;
2686
2687         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2688                 (*x)->region()->separate_by_channel (*_session, v);
2689         }
2690 }
2691
2692 void
2693 Editor::new_region_from_selection ()
2694 {
2695         region_from_selection ();
2696         cancel_selection ();
2697 }
2698
2699 static void
2700 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2701 {
2702         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2703         case Evoral::OverlapNone:
2704                 break;
2705         default:
2706                 rs->push_back (rv);
2707         }
2708 }
2709
2710 /** Return either:
2711  *    - selected tracks, or if there are none...
2712  *    - tracks containing selected regions, or if there are none...
2713  *    - all tracks
2714  * @return tracks.
2715  */
2716 TrackViewList
2717 Editor::get_tracks_for_range_action () const
2718 {
2719         TrackViewList t;
2720
2721         if (selection->tracks.empty()) {
2722
2723                 /* use tracks with selected regions */
2724
2725                 RegionSelection rs = selection->regions;
2726
2727                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2728                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2729
2730                         if (!t.contains (tv)) {
2731                                 t.push_back (tv);
2732                         }
2733                 }
2734
2735                 if (t.empty()) {
2736                         /* no regions and no tracks: use all tracks */
2737                         t = track_views;
2738                 }
2739
2740         } else {
2741
2742                 t = selection->tracks;
2743         }
2744
2745         return t.filter_to_unique_playlists();
2746 }
2747
2748 void
2749 Editor::separate_regions_between (const TimeSelection& ts)
2750 {
2751         bool in_command = false;
2752         boost::shared_ptr<Playlist> playlist;
2753         RegionSelection new_selection;
2754
2755         TrackViewList tmptracks = get_tracks_for_range_action ();
2756         sort_track_selection (tmptracks);
2757
2758         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2759
2760                 RouteTimeAxisView* rtv;
2761
2762                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2763
2764                         if (rtv->is_track()) {
2765
2766                                 /* no edits to destructive tracks */
2767
2768                                 if (rtv->track()->destructive()) {
2769                                         continue;
2770                                 }
2771
2772                                 if ((playlist = rtv->playlist()) != 0) {
2773
2774                                         playlist->clear_changes ();
2775
2776                                         /* XXX need to consider musical time selections here at some point */
2777
2778                                         double speed = rtv->track()->speed();
2779
2780
2781                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2782
2783                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2784                                                                 sigc::mem_fun(*this, &Editor::collect_new_region_view));
2785
2786                                                 latest_regionviews.clear ();
2787
2788                                                 playlist->partition ((framepos_t)((*t).start * speed),
2789                                                                 (framepos_t)((*t).end * speed), false);
2790
2791                                                 c.disconnect ();
2792
2793                                                 if (!latest_regionviews.empty()) {
2794
2795                                                         rtv->view()->foreach_regionview (sigc::bind (
2796                                                                                 sigc::ptr_fun (add_if_covered),
2797                                                                                 &(*t), &new_selection));
2798
2799                                                         if (!in_command) {
2800                                                                 begin_reversible_command (_("separate"));
2801                                                                 in_command = true;
2802                                                         }
2803
2804                                                         /* pick up changes to existing regions */
2805
2806                                                         vector<Command*> cmds;
2807                                                         playlist->rdiff (cmds);
2808                                                         _session->add_commands (cmds);
2809
2810                                                         /* pick up changes to the playlist itself (adds/removes)
2811                                                          */
2812
2813                                                         _session->add_command(new StatefulDiffCommand (playlist));
2814                                                 }
2815                                         }
2816                                 }
2817                         }
2818                 }
2819         }
2820
2821         if (in_command) {
2822 //              selection->set (new_selection);
2823
2824                 commit_reversible_command ();
2825         }
2826 }
2827
2828 struct PlaylistState {
2829     boost::shared_ptr<Playlist> playlist;
2830     XMLNode*  before;
2831 };
2832
2833 /** Take tracks from get_tracks_for_range_action and cut any regions
2834  *  on those tracks so that the tracks are empty over the time
2835  *  selection.
2836  */
2837 void
2838 Editor::separate_region_from_selection ()
2839 {
2840         /* preferentially use *all* ranges in the time selection if we're in range mode
2841            to allow discontiguous operation, since get_edit_op_range() currently
2842            returns a single range.
2843         */
2844
2845         if (!selection->time.empty()) {
2846
2847                 separate_regions_between (selection->time);
2848
2849         } else {
2850
2851                 framepos_t start;
2852                 framepos_t end;
2853
2854                 if (get_edit_op_range (start, end)) {
2855
2856                         AudioRange ar (start, end, 1);
2857                         TimeSelection ts;
2858                         ts.push_back (ar);
2859
2860                         separate_regions_between (ts);
2861                 }
2862         }
2863 }
2864
2865 void
2866 Editor::separate_region_from_punch ()
2867 {
2868         Location* loc  = _session->locations()->auto_punch_location();
2869         if (loc) {
2870                 separate_regions_using_location (*loc);
2871         }
2872 }
2873
2874 void
2875 Editor::separate_region_from_loop ()
2876 {
2877         Location* loc  = _session->locations()->auto_loop_location();
2878         if (loc) {
2879                 separate_regions_using_location (*loc);
2880         }
2881 }
2882
2883 void
2884 Editor::separate_regions_using_location (Location& loc)
2885 {
2886         if (loc.is_mark()) {
2887                 return;
2888         }
2889
2890         AudioRange ar (loc.start(), loc.end(), 1);
2891         TimeSelection ts;
2892
2893         ts.push_back (ar);
2894
2895         separate_regions_between (ts);
2896 }
2897
2898 /** Separate regions under the selected region */
2899 void
2900 Editor::separate_under_selected_regions ()
2901 {
2902         vector<PlaylistState> playlists;
2903
2904         RegionSelection rs;
2905
2906         rs = get_regions_from_selection_and_entered();
2907
2908         if (!_session || rs.empty()) {
2909                 return;
2910         }
2911
2912         begin_reversible_command (_("separate region under"));
2913
2914         list<boost::shared_ptr<Region> > regions_to_remove;
2915
2916         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2917                 // we can't just remove the region(s) in this loop because
2918                 // this removes them from the RegionSelection, and they thus
2919                 // disappear from underneath the iterator, and the ++i above
2920                 // SEGVs in a puzzling fashion.
2921
2922                 // so, first iterate over the regions to be removed from rs and
2923                 // add them to the regions_to_remove list, and then
2924                 // iterate over the list to actually remove them.
2925
2926                 regions_to_remove.push_back ((*i)->region());
2927         }
2928
2929         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
2930
2931                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
2932
2933                 if (!playlist) {
2934                         // is this check necessary?
2935                         continue;
2936                 }
2937
2938                 vector<PlaylistState>::iterator i;
2939
2940                 //only take state if this is a new playlist.
2941                 for (i = playlists.begin(); i != playlists.end(); ++i) {
2942                         if ((*i).playlist == playlist) {
2943                                 break;
2944                         }
2945                 }
2946
2947                 if (i == playlists.end()) {
2948
2949                         PlaylistState before;
2950                         before.playlist = playlist;
2951                         before.before = &playlist->get_state();
2952
2953                         playlist->freeze ();
2954                         playlists.push_back(before);
2955                 }
2956
2957                 //Partition on the region bounds
2958                 playlist->partition ((*rl)->first_frame() - 1, (*rl)->last_frame() + 1, true);
2959
2960                 //Re-add region that was just removed due to the partition operation
2961                 playlist->add_region( (*rl), (*rl)->first_frame() );
2962         }
2963
2964         vector<PlaylistState>::iterator pl;
2965
2966         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
2967                 (*pl).playlist->thaw ();
2968                 _session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
2969         }
2970
2971         commit_reversible_command ();
2972 }
2973
2974 void
2975 Editor::crop_region_to_selection ()
2976 {
2977         if (!selection->time.empty()) {
2978
2979                 crop_region_to (selection->time.start(), selection->time.end_frame());
2980
2981         } else {
2982
2983                 framepos_t start;
2984                 framepos_t end;
2985
2986                 if (get_edit_op_range (start, end)) {
2987                         crop_region_to (start, end);
2988                 }
2989         }
2990
2991 }
2992
2993 void
2994 Editor::crop_region_to (framepos_t start, framepos_t end)
2995 {
2996         vector<boost::shared_ptr<Playlist> > playlists;
2997         boost::shared_ptr<Playlist> playlist;
2998         TrackViewList ts;
2999
3000         if (selection->tracks.empty()) {
3001                 ts = track_views.filter_to_unique_playlists();
3002         } else {
3003                 ts = selection->tracks.filter_to_unique_playlists ();
3004         }
3005
3006         sort_track_selection (ts);
3007
3008         for (TrackSelection::iterator i = ts.begin(); i != ts.end(); ++i) {
3009
3010                 RouteTimeAxisView* rtv;
3011
3012                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
3013
3014                         boost::shared_ptr<Track> t = rtv->track();
3015
3016                         if (t != 0 && ! t->destructive()) {
3017
3018                                 if ((playlist = rtv->playlist()) != 0) {
3019                                         playlists.push_back (playlist);
3020                                 }
3021                         }
3022                 }
3023         }
3024
3025         if (playlists.empty()) {
3026                 return;
3027         }
3028
3029         framepos_t the_start;
3030         framepos_t the_end;
3031         framepos_t cnt;
3032
3033         begin_reversible_command (_("trim to selection"));
3034
3035         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3036
3037                 boost::shared_ptr<Region> region;
3038
3039                 the_start = start;
3040
3041                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3042                         continue;
3043                 }
3044
3045                 /* now adjust lengths to that we do the right thing
3046                    if the selection extends beyond the region
3047                 */
3048
3049                 the_start = max (the_start, (framepos_t) region->position());
3050                 if (max_framepos - the_start < region->length()) {
3051                         the_end = the_start + region->length() - 1;
3052                 } else {
3053                         the_end = max_framepos;
3054                 }
3055                 the_end = min (end, the_end);
3056                 cnt = the_end - the_start + 1;
3057
3058                 region->clear_changes ();
3059                 region->trim_to (the_start, cnt);
3060                 _session->add_command (new StatefulDiffCommand (region));
3061         }
3062
3063         commit_reversible_command ();
3064 }
3065
3066 void
3067 Editor::region_fill_track ()
3068 {
3069         RegionSelection rs = get_regions_from_selection_and_entered ();
3070
3071         if (!_session || rs.empty()) {
3072                 return;
3073         }
3074
3075         framepos_t const end = _session->current_end_frame ();
3076
3077         begin_reversible_command (Operations::region_fill);
3078
3079         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3080
3081                 boost::shared_ptr<Region> region ((*i)->region());
3082
3083                 boost::shared_ptr<Playlist> pl = region->playlist();
3084
3085                 if (end <= region->last_frame()) {
3086                         return;
3087                 }
3088
3089                 double times = (double) (end - region->last_frame()) / (double) region->length();
3090
3091                 if (times == 0) {
3092                         return;
3093                 }
3094
3095                 pl->clear_changes ();
3096                 pl->add_region (RegionFactory::create (region, true), region->last_frame(), times);
3097                 _session->add_command (new StatefulDiffCommand (pl));
3098         }
3099
3100         commit_reversible_command ();
3101 }
3102
3103 void
3104 Editor::region_fill_selection ()
3105 {
3106         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3107                 return;
3108         }
3109
3110         if (selection->time.empty()) {
3111                 return;
3112         }
3113
3114         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3115         if (region == 0) {
3116                 return;
3117         }
3118
3119         framepos_t start = selection->time[clicked_selection].start;
3120         framepos_t end = selection->time[clicked_selection].end;
3121
3122         boost::shared_ptr<Playlist> playlist;
3123
3124         if (selection->tracks.empty()) {
3125                 return;
3126         }
3127
3128         framepos_t selection_length = end - start;
3129         float times = (float)selection_length / region->length();
3130
3131         begin_reversible_command (Operations::fill_selection);
3132
3133         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
3134
3135         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
3136
3137                 if ((playlist = (*i)->playlist()) == 0) {
3138                         continue;
3139                 }
3140
3141                 playlist->clear_changes ();
3142                 playlist->add_region (RegionFactory::create (region, true), start, times);
3143                 _session->add_command (new StatefulDiffCommand (playlist));
3144         }
3145
3146         commit_reversible_command ();
3147 }
3148
3149 void
3150 Editor::set_region_sync_position ()
3151 {
3152         set_sync_point (get_preferred_edit_position (), get_regions_from_selection_and_edit_point ());
3153 }
3154
3155 void
3156 Editor::set_sync_point (framepos_t where, const RegionSelection& rs)
3157 {
3158         bool in_command = false;
3159
3160         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3161
3162                 if (!(*r)->region()->covers (where)) {
3163                         continue;
3164                 }
3165
3166                 boost::shared_ptr<Region> region ((*r)->region());
3167
3168                 if (!in_command) {
3169                         begin_reversible_command (_("set sync point"));
3170                         in_command = true;
3171                 }
3172
3173                 region->clear_changes ();
3174                 region->set_sync_position (where);
3175                 _session->add_command(new StatefulDiffCommand (region));
3176         }
3177
3178         if (in_command) {
3179                 commit_reversible_command ();
3180         }
3181 }
3182
3183 /** Remove the sync positions of the selection */
3184 void
3185 Editor::remove_region_sync ()
3186 {
3187         RegionSelection rs = get_regions_from_selection_and_entered ();
3188
3189         if (rs.empty()) {
3190                 return;
3191         }
3192
3193         begin_reversible_command (_("remove region sync"));
3194
3195         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3196
3197                 (*i)->region()->clear_changes ();
3198                 (*i)->region()->clear_sync_position ();
3199                 _session->add_command(new StatefulDiffCommand ((*i)->region()));
3200         }
3201
3202         commit_reversible_command ();
3203 }
3204
3205 void
3206 Editor::naturalize_region ()
3207 {
3208         RegionSelection rs = get_regions_from_selection_and_entered ();
3209
3210         if (rs.empty()) {
3211                 return;
3212         }
3213
3214         if (rs.size() > 1) {
3215                 begin_reversible_command (_("move regions to original position"));
3216         } else {
3217                 begin_reversible_command (_("move region to original position"));
3218         }
3219
3220         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3221                 (*i)->region()->clear_changes ();
3222                 (*i)->region()->move_to_natural_position ();
3223                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
3224         }
3225
3226         commit_reversible_command ();
3227 }
3228
3229 void
3230 Editor::align_regions (RegionPoint what)
3231 {
3232         RegionSelection const rs = get_regions_from_selection_and_edit_point ();
3233
3234         if (rs.empty()) {
3235                 return;
3236         }
3237
3238         begin_reversible_command (_("align selection"));
3239
3240         framepos_t const position = get_preferred_edit_position ();
3241
3242         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3243                 align_region_internal ((*i)->region(), what, position);
3244         }
3245
3246         commit_reversible_command ();
3247 }
3248
3249 struct RegionSortByTime {
3250     bool operator() (const RegionView* a, const RegionView* b) {
3251             return a->region()->position() < b->region()->position();
3252     }
3253 };
3254
3255 void
3256 Editor::align_regions_relative (RegionPoint point)
3257 {
3258         RegionSelection const rs = get_regions_from_selection_and_edit_point ();
3259
3260         if (rs.empty()) {
3261                 return;
3262         }
3263
3264         framepos_t const position = get_preferred_edit_position ();
3265
3266         framepos_t distance = 0;
3267         framepos_t pos = 0;
3268         int dir = 1;
3269
3270         list<RegionView*> sorted;
3271         rs.by_position (sorted);
3272
3273         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3274
3275         switch (point) {
3276         case Start:
3277                 pos = position;
3278                 if (position > r->position()) {
3279                         distance = position - r->position();
3280                 } else {
3281                         distance = r->position() - position;
3282                         dir = -1;
3283                 }
3284                 break;
3285
3286         case End:
3287                 if (position > r->last_frame()) {
3288                         distance = position - r->last_frame();
3289                         pos = r->position() + distance;
3290                 } else {
3291                         distance = r->last_frame() - position;
3292                         pos = r->position() - distance;
3293                         dir = -1;
3294                 }
3295                 break;
3296
3297         case SyncPoint:
3298                 pos = r->adjust_to_sync (position);
3299                 if (pos > r->position()) {
3300                         distance = pos - r->position();
3301                 } else {
3302                         distance = r->position() - pos;
3303                         dir = -1;
3304                 }
3305                 break;
3306         }
3307
3308         if (pos == r->position()) {
3309                 return;
3310         }
3311
3312         begin_reversible_command (_("align selection (relative)"));
3313
3314         /* move first one specially */
3315
3316         r->clear_changes ();
3317         r->set_position (pos);
3318         _session->add_command(new StatefulDiffCommand (r));
3319
3320         /* move rest by the same amount */
3321
3322         sorted.pop_front();
3323
3324         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3325
3326                 boost::shared_ptr<Region> region ((*i)->region());
3327
3328                 region->clear_changes ();
3329
3330                 if (dir > 0) {
3331                         region->set_position (region->position() + distance);
3332                 } else {
3333                         region->set_position (region->position() - distance);
3334                 }
3335
3336                 _session->add_command(new StatefulDiffCommand (region));
3337
3338         }
3339
3340         commit_reversible_command ();
3341 }
3342
3343 void
3344 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, framepos_t position)
3345 {
3346         begin_reversible_command (_("align region"));
3347         align_region_internal (region, point, position);
3348         commit_reversible_command ();
3349 }
3350
3351 void
3352 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, framepos_t position)
3353 {
3354         region->clear_changes ();
3355
3356         switch (point) {
3357         case SyncPoint:
3358                 region->set_position (region->adjust_to_sync (position));
3359                 break;
3360
3361         case End:
3362                 if (position > region->length()) {
3363                         region->set_position (position - region->length());
3364                 }
3365                 break;
3366
3367         case Start:
3368                 region->set_position (position);
3369                 break;
3370         }
3371
3372         _session->add_command(new StatefulDiffCommand (region));
3373 }
3374
3375 void
3376 Editor::trim_region_front ()
3377 {
3378         trim_region (true);
3379 }
3380
3381 void
3382 Editor::trim_region_back ()
3383 {
3384         trim_region (false);
3385 }
3386
3387 void
3388 Editor::trim_region (bool front)
3389 {
3390         framepos_t where = get_preferred_edit_position();
3391         RegionSelection rs = get_regions_from_selection_and_edit_point ();
3392
3393         if (rs.empty()) {
3394                 return;
3395         }
3396
3397         begin_reversible_command (front ? _("trim front") : _("trim back"));
3398
3399         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3400                 if (!(*i)->region()->locked()) {
3401
3402                         (*i)->region()->clear_changes ();
3403
3404                         if (front) {
3405                                 (*i)->region()->trim_front (where);
3406                                 maybe_locate_with_edit_preroll ( where );
3407                         } else {
3408                                 (*i)->region()->trim_end (where);
3409                                 maybe_locate_with_edit_preroll ( where );
3410                         }
3411
3412                         _session->add_command (new StatefulDiffCommand ((*i)->region()));
3413                 }
3414         }
3415
3416         commit_reversible_command ();
3417 }
3418
3419 /** Trim the end of the selected regions to the position of the edit cursor */
3420 void
3421 Editor::trim_region_to_loop ()
3422 {
3423         Location* loc = _session->locations()->auto_loop_location();
3424         if (!loc) {
3425                 return;
3426         }
3427         trim_region_to_location (*loc, _("trim to loop"));
3428 }
3429
3430 void
3431 Editor::trim_region_to_punch ()
3432 {
3433         Location* loc = _session->locations()->auto_punch_location();
3434         if (!loc) {
3435                 return;
3436         }
3437         trim_region_to_location (*loc, _("trim to punch"));
3438 }
3439
3440 void
3441 Editor::trim_region_to_location (const Location& loc, const char* str)
3442 {
3443         RegionSelection rs = get_regions_from_selection_and_entered ();
3444
3445         begin_reversible_command (str);
3446
3447         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3448                 RegionView* rv = (*x);
3449
3450                 /* require region to span proposed trim */
3451                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3452                 case Evoral::OverlapInternal:
3453                         break;
3454                 default:
3455                         continue;
3456                 }
3457
3458                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3459                 if (!tav) {
3460                         return;
3461                 }
3462
3463                 float speed = 1.0;
3464                 framepos_t start;
3465                 framepos_t end;
3466
3467                 if (tav->track() != 0) {
3468                         speed = tav->track()->speed();
3469                 }
3470
3471                 start = session_frame_to_track_frame (loc.start(), speed);
3472                 end = session_frame_to_track_frame (loc.end(), speed);
3473
3474                 rv->region()->clear_changes ();
3475                 rv->region()->trim_to (start, (end - start));
3476                 _session->add_command(new StatefulDiffCommand (rv->region()));
3477         }
3478
3479         commit_reversible_command ();
3480 }
3481
3482 void
3483 Editor::trim_region_to_previous_region_end ()
3484 {
3485         return trim_to_region(false);
3486 }
3487
3488 void
3489 Editor::trim_region_to_next_region_start ()
3490 {
3491         return trim_to_region(true);
3492 }
3493
3494 void
3495 Editor::trim_to_region(bool forward)
3496 {
3497         RegionSelection rs = get_regions_from_selection_and_entered ();
3498
3499         begin_reversible_command (_("trim to region"));
3500
3501         boost::shared_ptr<Region> next_region;
3502
3503         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3504
3505                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3506
3507                 if (!arv) {
3508                         continue;
3509                 }
3510
3511                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3512
3513                 if (!atav) {
3514                         return;
3515                 }
3516
3517                 float speed = 1.0;
3518
3519                 if (atav->track() != 0) {
3520                         speed = atav->track()->speed();
3521                 }
3522
3523
3524                 boost::shared_ptr<Region> region = arv->region();
3525                 boost::shared_ptr<Playlist> playlist (region->playlist());
3526
3527                 region->clear_changes ();
3528
3529                 if (forward) {
3530
3531                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3532
3533                     if (!next_region) {
3534                         continue;
3535                     }
3536
3537                     region->trim_end((framepos_t) ( (next_region->first_frame() - 1) * speed));
3538                     arv->region_changed (PropertyChange (ARDOUR::Properties::length));
3539                 }
3540                 else {
3541
3542                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3543
3544                     if(!next_region){
3545                         continue;
3546                     }
3547
3548                     region->trim_front((framepos_t) ((next_region->last_frame() + 1) * speed));
3549
3550                     arv->region_changed (ARDOUR::bounds_change);
3551                 }
3552
3553                 _session->add_command(new StatefulDiffCommand (region));
3554         }
3555
3556         commit_reversible_command ();
3557 }
3558
3559 void
3560 Editor::unfreeze_route ()
3561 {
3562         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3563                 return;
3564         }
3565
3566         clicked_routeview->track()->unfreeze ();
3567 }
3568
3569 void*
3570 Editor::_freeze_thread (void* arg)
3571 {
3572         return static_cast<Editor*>(arg)->freeze_thread ();
3573 }
3574
3575 void*
3576 Editor::freeze_thread ()
3577 {
3578         /* create event pool because we may need to talk to the session */
3579         SessionEvent::create_per_thread_pool ("freeze events", 64);
3580         /* create per-thread buffers for process() tree to use */
3581         clicked_routeview->audio_track()->freeze_me (*current_interthread_info);
3582         current_interthread_info->done = true;
3583         return 0;
3584 }
3585
3586 void
3587 Editor::freeze_route ()
3588 {
3589         if (!_session) {
3590                 return;
3591         }
3592
3593         /* stop transport before we start. this is important */
3594
3595         _session->request_transport_speed (0.0);
3596
3597         /* wait for just a little while, because the above call is asynchronous */
3598
3599         Glib::usleep (250000);
3600
3601         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3602                 return;
3603         }
3604
3605         if (!clicked_routeview->track()->bounceable (clicked_routeview->track()->main_outs(), true)) {
3606                 MessageDialog d (
3607                         _("This track/bus cannot be frozen because the signal adds or loses channels before reaching the outputs.\n"
3608                           "This is typically caused by plugins that generate stereo output from mono input or vice versa.")
3609                         );
3610                 d.set_title (_("Cannot freeze"));
3611                 d.run ();
3612                 return;
3613         }
3614
3615         if (clicked_routeview->track()->has_external_redirects()) {
3616                 MessageDialog d (string_compose (_("<b>%1</b>\n\nThis track has at least one send/insert/return as part of its signal flow.\n\n"
3617                                                    "Freezing will only process the signal as far as the first send/insert/return."),
3618                                                  clicked_routeview->track()->name()), true, MESSAGE_INFO, BUTTONS_NONE, true);
3619
3620                 d.add_button (_("Freeze anyway"), Gtk::RESPONSE_OK);
3621                 d.add_button (_("Don't freeze"), Gtk::RESPONSE_CANCEL);
3622                 d.set_title (_("Freeze Limits"));
3623
3624                 int response = d.run ();
3625
3626                 switch (response) {
3627                 case Gtk::RESPONSE_CANCEL:
3628                         return;
3629                 default:
3630                         break;
3631                 }
3632         }
3633
3634         InterThreadInfo itt;
3635         current_interthread_info = &itt;
3636
3637         InterthreadProgressWindow ipw (current_interthread_info, _("Freeze"), _("Cancel Freeze"));
3638
3639         pthread_create_and_store (X_("freezer"), &itt.thread, _freeze_thread, this);
3640
3641         set_canvas_cursor (_cursors->wait);
3642
3643         while (!itt.done && !itt.cancel) {
3644                 gtk_main_iteration ();
3645         }
3646
3647         current_interthread_info = 0;
3648         set_canvas_cursor (current_canvas_cursor);
3649 }
3650
3651 void
3652 Editor::bounce_range_selection (bool replace, bool enable_processing)
3653 {
3654         if (selection->time.empty()) {
3655                 return;
3656         }
3657
3658         TrackSelection views = selection->tracks;
3659
3660         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3661
3662                 if (enable_processing) {
3663
3664                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
3665
3666                         if (rtv && rtv->track() && replace && enable_processing && !rtv->track()->bounceable (rtv->track()->main_outs(), false)) {
3667                                 MessageDialog d (
3668                                         _("You can't perform this operation because the processing of the signal "
3669                                           "will cause one or more of the tracks to end up with a region with more channels than this track has inputs.\n\n"
3670                                           "You can do this without processing, which is a different operation.")
3671                                         );
3672                                 d.set_title (_("Cannot bounce"));
3673                                 d.run ();
3674                                 return;
3675                         }
3676                 }
3677         }
3678
3679         framepos_t start = selection->time[clicked_selection].start;
3680         framepos_t end = selection->time[clicked_selection].end;
3681         framepos_t cnt = end - start + 1;
3682
3683         begin_reversible_command (_("bounce range"));
3684
3685         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3686
3687                 RouteTimeAxisView* rtv;
3688
3689                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3690                         continue;
3691                 }
3692
3693                 boost::shared_ptr<Playlist> playlist;
3694
3695                 if ((playlist = rtv->playlist()) == 0) {
3696                         return;
3697                 }
3698
3699                 InterThreadInfo itt;
3700
3701                 playlist->clear_changes ();
3702                 playlist->clear_owned_changes ();
3703
3704                 boost::shared_ptr<Region> r;
3705
3706                 if (enable_processing) {
3707                         r = rtv->track()->bounce_range (start, start+cnt, itt, rtv->track()->main_outs(), false);
3708                 } else {
3709                         r = rtv->track()->bounce_range (start, start+cnt, itt, boost::shared_ptr<Processor>(), false);
3710                 }
3711
3712                 if (!r) {
3713                         continue;
3714                 }
3715
3716                 if (replace) {
3717                         list<AudioRange> ranges;
3718                         ranges.push_back (AudioRange (start, start+cnt, 0));
3719                         playlist->cut (ranges); // discard result
3720                         playlist->add_region (r, start);
3721                 }
3722
3723                 vector<Command*> cmds;
3724                 playlist->rdiff (cmds);
3725                 _session->add_commands (cmds);
3726
3727                 _session->add_command (new StatefulDiffCommand (playlist));
3728         }
3729
3730         commit_reversible_command ();
3731 }
3732
3733 /** Delete selected regions, automation points or a time range */
3734 void
3735 Editor::delete_ ()
3736 {
3737         //special case: if the user is pointing in the editor/mixer strip, they may be trying to delete a plugin.
3738         //we need this because the editor-mixer strip is in the editor window, so it doesn't get the bindings from the mix window
3739         bool deleted = false;
3740         if ( current_mixer_strip && current_mixer_strip == MixerStrip::entered_mixer_strip() )
3741                 deleted = current_mixer_strip->delete_processors ();
3742
3743         if (!deleted)
3744                 cut_copy (Delete);
3745 }
3746
3747 /** Cut selected regions, automation points or a time range */
3748 void
3749 Editor::cut ()
3750 {
3751         cut_copy (Cut);
3752 }
3753
3754 /** Copy selected regions, automation points or a time range */
3755 void
3756 Editor::copy ()
3757 {
3758         cut_copy (Copy);
3759 }
3760
3761
3762 /** @return true if a Cut, Copy or Clear is possible */
3763 bool
3764 Editor::can_cut_copy () const
3765 {
3766         if (!selection->time.empty() || !selection->regions.empty() || !selection->points.empty())
3767                 return true;
3768
3769         return false;
3770 }
3771
3772
3773 /** Cut, copy or clear selected regions, automation points or a time range.
3774  * @param op Operation (Delete, Cut, Copy or Clear)
3775  */
3776 void
3777 Editor::cut_copy (CutCopyOp op)
3778 {
3779         /* only cancel selection if cut/copy is successful.*/
3780
3781         string opname;
3782
3783         switch (op) {
3784         case Delete:
3785                 opname = _("delete");
3786                 break;
3787         case Cut:
3788                 opname = _("cut");
3789                 break;
3790         case Copy:
3791                 opname = _("copy");
3792                 break;
3793         case Clear:
3794                 opname = _("clear");
3795                 break;
3796         }
3797
3798         /* if we're deleting something, and the mouse is still pressed,
3799            the thing we started a drag for will be gone when we release
3800            the mouse button(s). avoid this. see part 2 at the end of
3801            this function.
3802         */
3803
3804         if (op == Delete || op == Cut || op == Clear) {
3805                 if (_drags->active ()) {
3806                         _drags->abort ();
3807                 }
3808         }
3809
3810         if ( op != Delete )  //"Delete" doesn't change copy/paste buf
3811                 cut_buffer->clear ();
3812
3813         if (entered_marker) {
3814
3815                 /* cut/delete op while pointing at a marker */
3816
3817                 bool ignored;
3818                 Location* loc = find_location_from_marker (entered_marker, ignored);
3819
3820                 if (_session && loc) {
3821                         Glib::signal_idle().connect (sigc::bind (sigc::mem_fun(*this, &Editor::really_remove_marker), loc));
3822                 }
3823
3824                 _drags->abort ();
3825                 return;
3826         }
3827
3828         if (internal_editing()) {
3829
3830                 switch (effective_mouse_mode()) {
3831                 case MouseObject:
3832                 case MouseRange:
3833                         begin_reversible_command (opname + ' ' + X_("MIDI"));
3834                         cut_copy_midi (op);
3835                         commit_reversible_command ();
3836                         break;
3837                 default:
3838                         break;
3839                 }
3840
3841                 return;
3842         }
3843
3844         bool did_edit = false;
3845
3846         if (!selection->points.empty()) {
3847                 begin_reversible_command (opname + _(" points"));
3848                 did_edit = true;
3849                 cut_copy_points (op);
3850                 if (op == Cut || op == Delete) {
3851                         selection->clear_points ();
3852                 }
3853         } else if (!selection->regions.empty() || !selection->points.empty()) {
3854
3855                 string thing_name;
3856
3857                 if (selection->regions.empty()) {
3858                         thing_name = _("points");
3859                 } else if (selection->points.empty()) {
3860                         thing_name = _("regions");
3861                 } else {
3862                         thing_name = _("objects");
3863                 }
3864
3865                 begin_reversible_command (opname + ' ' + thing_name);
3866                 did_edit = true;
3867
3868                 if (!selection->regions.empty()) {
3869                         cut_copy_regions (op, selection->regions);
3870
3871                         if (op == Cut || op == Delete) {
3872                                 selection->clear_regions ();
3873                         }
3874                 }
3875
3876                 if (!selection->points.empty()) {
3877                         cut_copy_points (op);
3878
3879                         if (op == Cut || op == Delete) {
3880                                 selection->clear_points ();
3881                         }
3882                 }
3883         } else if (selection->time.empty()) {
3884                 framepos_t start, end;
3885                 /* no time selection, see if we can get an edit range
3886                    and use that.
3887                 */
3888                 if (get_edit_op_range (start, end)) {
3889                         selection->set (start, end);
3890                 }
3891         } else if (!selection->time.empty()) {
3892                 begin_reversible_command (opname + _(" range"));
3893
3894                 did_edit = true;
3895                 cut_copy_ranges (op);
3896
3897                 if (op == Cut || op == Delete) {
3898                         selection->clear_time ();
3899                 }
3900         }
3901
3902         if (did_edit) {
3903                 commit_reversible_command ();
3904         }
3905
3906         if (op == Delete || op == Cut || op == Clear) {
3907                 _drags->abort ();
3908         }
3909 }
3910
3911 struct AutomationRecord {
3912         AutomationRecord () : state (0) {}
3913         AutomationRecord (XMLNode* s) : state (s) {}
3914
3915         XMLNode* state; ///< state before any operation
3916         boost::shared_ptr<Evoral::ControlList> copy; ///< copied events for the cut buffer
3917 };
3918
3919 /** Cut, copy or clear selected automation points.
3920  *  @param op Operation (Cut, Copy or Clear)
3921  */
3922 void
3923 Editor::cut_copy_points (CutCopyOp op)
3924 {
3925         if (selection->points.empty ()) {
3926                 return;
3927         }
3928
3929         /* XXX: not ideal, as there may be more than one track involved in the point selection */
3930         _last_cut_copy_source_track = &selection->points.front()->line().trackview;
3931
3932         /* Keep a record of the AutomationLists that we end up using in this operation */
3933         typedef std::map<boost::shared_ptr<AutomationList>, AutomationRecord> Lists;
3934         Lists lists;
3935
3936         /* Go through all selected points, making an AutomationRecord for each distinct AutomationList */
3937         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3938                 boost::shared_ptr<AutomationList> al = (*i)->line().the_list();
3939                 if (lists.find (al) == lists.end ()) {
3940                         /* We haven't seen this list yet, so make a record for it.  This includes
3941                            taking a copy of its current state, in case this is needed for undo later.
3942                         */
3943                         lists[al] = AutomationRecord (&al->get_state ());
3944                 }
3945         }
3946
3947         if (op == Cut || op == Copy) {
3948                 /* This operation will involve putting things in the cut buffer, so create an empty
3949                    ControlList for each of our source lists to put the cut buffer data in.
3950                 */
3951                 for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
3952                         i->second.copy = i->first->create (i->first->parameter ());
3953                 }
3954
3955                 /* Add all selected points to the relevant copy ControlLists */
3956                 for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3957                         boost::shared_ptr<AutomationList> al = (*i)->line().the_list();
3958                         AutomationList::const_iterator j = (*i)->model ();
3959                         lists[al].copy->add ((*j)->when, (*j)->value);
3960                 }
3961
3962                 for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
3963                         /* Correct this copy list so that it starts at time 0 */
3964                         double const start = i->second.copy->front()->when;
3965                         for (AutomationList::iterator j = i->second.copy->begin(); j != i->second.copy->end(); ++j) {
3966                                 (*j)->when -= start;
3967                         }
3968
3969                         /* And add it to the cut buffer */
3970                         cut_buffer->add (i->second.copy);
3971                 }
3972         }
3973
3974         if (op == Delete || op == Cut) {
3975                 /* This operation needs to remove things from the main AutomationList, so do that now */
3976
3977                 for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
3978                         i->first->freeze ();
3979                 }
3980
3981                 /* Remove each selected point from its AutomationList */
3982                 for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3983                         boost::shared_ptr<AutomationList> al = (*i)->line().the_list();
3984                         al->erase ((*i)->model ());
3985                 }
3986
3987                 /* Thaw the lists and add undo records for them */
3988                 for (Lists::iterator i = lists.begin(); i != lists.end(); ++i) {
3989                         boost::shared_ptr<AutomationList> al = i->first;
3990                         al->thaw ();
3991                         _session->add_command (new MementoCommand<AutomationList> (*al.get(), i->second.state, &(al->get_state ())));
3992                 }
3993         }
3994 }
3995
3996 /** Cut, copy or clear selected automation points.
3997  * @param op Operation (Cut, Copy or Clear)
3998  */
3999 void
4000 Editor::cut_copy_midi (CutCopyOp op)
4001 {
4002         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
4003                 MidiRegionView* mrv = *i;
4004                 mrv->cut_copy_clear (op);
4005         }
4006 }
4007
4008
4009
4010 struct lt_playlist {
4011     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4012             return a.playlist < b.playlist;
4013     }
4014 };
4015
4016 struct PlaylistMapping {
4017     TimeAxisView* tv;
4018     boost::shared_ptr<Playlist> pl;
4019
4020     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4021 };
4022
4023 /** Remove `clicked_regionview' */
4024 void
4025 Editor::remove_clicked_region ()
4026 {
4027         if (clicked_routeview == 0 || clicked_regionview == 0) {
4028                 return;
4029         }
4030
4031         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4032
4033         playlist->clear_changes ();
4034         playlist->clear_owned_changes ();
4035         playlist->remove_region (clicked_regionview->region());
4036         if (Config->get_edit_mode() == Ripple)
4037                 playlist->ripple (clicked_regionview->region()->position(), -clicked_regionview->region()->length(), boost::shared_ptr<Region>());
4038
4039         /* We might have removed regions, which alters other regions' layering_index,
4040            so we need to do a recursive diff here.
4041         */
4042         vector<Command*> cmds;
4043         playlist->rdiff (cmds);
4044         _session->add_commands (cmds);
4045
4046         _session->add_command(new StatefulDiffCommand (playlist));
4047         commit_reversible_command ();
4048 }
4049
4050
4051 /** Remove the selected regions */
4052 void
4053 Editor::remove_selected_regions ()
4054 {
4055         RegionSelection rs = get_regions_from_selection_and_entered ();
4056
4057         if (!_session || rs.empty()) {
4058                 return;
4059         }
4060
4061         begin_reversible_command (_("remove region"));
4062
4063         list<boost::shared_ptr<Region> > regions_to_remove;
4064
4065         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4066                 // we can't just remove the region(s) in this loop because
4067                 // this removes them from the RegionSelection, and they thus
4068                 // disappear from underneath the iterator, and the ++i above
4069                 // SEGVs in a puzzling fashion.
4070
4071                 // so, first iterate over the regions to be removed from rs and
4072                 // add them to the regions_to_remove list, and then
4073                 // iterate over the list to actually remove them.
4074
4075                 regions_to_remove.push_back ((*i)->region());
4076         }
4077
4078         vector<boost::shared_ptr<Playlist> > playlists;
4079
4080         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4081
4082                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4083
4084                 if (!playlist) {
4085                         // is this check necessary?
4086                         continue;
4087                 }
4088
4089                 /* get_regions_from_selection_and_entered() guarantees that
4090                    the playlists involved are unique, so there is no need
4091                    to check here.
4092                 */
4093
4094                 playlists.push_back (playlist);
4095
4096                 playlist->clear_changes ();
4097                 playlist->clear_owned_changes ();
4098                 playlist->freeze ();
4099                 playlist->remove_region (*rl);
4100                 if (Config->get_edit_mode() == Ripple)
4101                         playlist->ripple ((*rl)->position(), -(*rl)->length(), boost::shared_ptr<Region>());
4102
4103         }
4104
4105         vector<boost::shared_ptr<Playlist> >::iterator pl;
4106
4107         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4108                 (*pl)->thaw ();
4109
4110                 /* We might have removed regions, which alters other regions' layering_index,
4111                    so we need to do a recursive diff here.
4112                 */
4113                 vector<Command*> cmds;
4114                 (*pl)->rdiff (cmds);
4115                 _session->add_commands (cmds);
4116
4117                 _session->add_command(new StatefulDiffCommand (*pl));
4118         }
4119
4120         commit_reversible_command ();
4121 }
4122
4123 /** Cut, copy or clear selected regions.
4124  * @param op Operation (Cut, Copy or Clear)
4125  */
4126 void
4127 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4128 {
4129         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4130            a map when we want ordered access to both elements. i think.
4131         */
4132
4133         vector<PlaylistMapping> pmap;
4134
4135         framepos_t first_position = max_framepos;
4136
4137         typedef set<boost::shared_ptr<Playlist> > FreezeList;
4138         FreezeList freezelist;
4139
4140         /* get ordering correct before we cut/copy */
4141
4142         rs.sort_by_position_and_track ();
4143
4144         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4145
4146                 first_position = min ((framepos_t) (*x)->region()->position(), first_position);
4147
4148                 if (op == Cut || op == Clear || op == Delete) {
4149                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4150
4151                         if (pl) {
4152                                 FreezeList::iterator fl;
4153
4154                                 // only take state if this is a new playlist.
4155                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4156                                         if ((*fl) == pl) {
4157                                                 break;
4158                                         }
4159                                 }
4160
4161                                 if (fl == freezelist.end()) {
4162                                         pl->clear_changes();
4163                                         pl->clear_owned_changes ();
4164                                         pl->freeze ();
4165                                         freezelist.insert (pl);
4166                                 }
4167                         }
4168                 }
4169
4170                 TimeAxisView* tv = &(*x)->get_time_axis_view();
4171                 vector<PlaylistMapping>::iterator z;
4172
4173                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4174                         if ((*z).tv == tv) {
4175                                 break;
4176                         }
4177                 }
4178
4179                 if (z == pmap.end()) {
4180                         pmap.push_back (PlaylistMapping (tv));
4181                 }
4182         }
4183
4184         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4185
4186                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4187
4188                 if (!pl) {
4189                         /* region not yet associated with a playlist (e.g. unfinished
4190                            capture pass.
4191                         */
4192                         ++x;
4193                         continue;
4194                 }
4195
4196                 TimeAxisView& tv = (*x)->get_time_axis_view();
4197                 boost::shared_ptr<Playlist> npl;
4198                 RegionSelection::iterator tmp;
4199
4200                 tmp = x;
4201                 ++tmp;
4202
4203                 if (op != Delete) {
4204
4205                         vector<PlaylistMapping>::iterator z;
4206
4207                         for (z = pmap.begin(); z != pmap.end(); ++z) {
4208                                 if ((*z).tv == &tv) {
4209                                         break;
4210                                 }
4211                         }
4212
4213                         assert (z != pmap.end());
4214
4215                         if (!(*z).pl) {
4216                                 npl = PlaylistFactory::create (pl->data_type(), *_session, "cutlist", true);
4217                                 npl->freeze();
4218                                 (*z).pl = npl;
4219                         } else {
4220                                 npl = (*z).pl;
4221                         }
4222                 }
4223
4224                 boost::shared_ptr<Region> r = (*x)->region();
4225                 boost::shared_ptr<Region> _xx;
4226
4227                 assert (r != 0);
4228
4229                 switch (op) {
4230                 case Delete:
4231                         pl->remove_region (r);
4232                         if (Config->get_edit_mode() == Ripple)
4233                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4234                         break;
4235
4236                 case Cut:
4237                         _xx = RegionFactory::create (r);
4238                         npl->add_region (_xx, r->position() - first_position);
4239                         pl->remove_region (r);
4240                         if (Config->get_edit_mode() == Ripple)
4241                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4242                         break;
4243
4244                 case Copy:
4245                         /* copy region before adding, so we're not putting same object into two different playlists */
4246                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4247                         break;
4248
4249                 case Clear:
4250                         pl->remove_region (r);
4251                         if (Config->get_edit_mode() == Ripple)
4252                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4253                         break;
4254                 }
4255
4256                 x = tmp;
4257         }
4258
4259         if (op != Delete) {
4260
4261                 list<boost::shared_ptr<Playlist> > foo;
4262
4263                 /* the pmap is in the same order as the tracks in which selected regions occured */
4264
4265                 for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4266                         if ((*i).pl) {
4267                                 (*i).pl->thaw();
4268                                 foo.push_back ((*i).pl);
4269                         }
4270                 }
4271
4272                 if (!foo.empty()) {
4273                         cut_buffer->set (foo);
4274                 }
4275
4276                 if (pmap.empty()) {
4277                         _last_cut_copy_source_track = 0;
4278                 } else {
4279                         _last_cut_copy_source_track = pmap.front().tv;
4280                 }
4281         }
4282
4283         for (FreezeList::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4284                 (*pl)->thaw ();
4285
4286                 /* We might have removed regions, which alters other regions' layering_index,
4287                    so we need to do a recursive diff here.
4288                 */
4289                 vector<Command*> cmds;
4290                 (*pl)->rdiff (cmds);
4291                 _session->add_commands (cmds);
4292
4293                 _session->add_command (new StatefulDiffCommand (*pl));
4294         }
4295 }
4296
4297 void
4298 Editor::cut_copy_ranges (CutCopyOp op)
4299 {
4300         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4301
4302         /* Sort the track selection now, so that it if is used, the playlists
4303            selected by the calls below to cut_copy_clear are in the order that
4304            their tracks appear in the editor.  This makes things like paste
4305            of ranges work properly.
4306         */
4307
4308         sort_track_selection (ts);
4309
4310         if (ts.empty()) {
4311                 if (!entered_track) {
4312                         return;
4313                 }
4314                 ts.push_back (entered_track);
4315         }
4316
4317         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4318                 (*i)->cut_copy_clear (*selection, op);
4319         }
4320 }
4321
4322 void
4323 Editor::paste (float times, bool from_context)
4324 {
4325         DEBUG_TRACE (DEBUG::CutNPaste, "paste to preferred edit pos\n");
4326
4327         paste_internal (get_preferred_edit_position (false, from_context), times);
4328 }
4329
4330 void
4331 Editor::mouse_paste ()
4332 {
4333         framepos_t where;
4334         bool ignored;
4335
4336         if (!mouse_frame (where, ignored)) {
4337                 return;
4338         }
4339
4340         snap_to (where);
4341         paste_internal (where, 1);
4342 }
4343
4344 void
4345 Editor::paste_internal (framepos_t position, float times)
4346 {
4347         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("apparent paste position is %1\n", position));
4348
4349         if (internal_editing()) {
4350                 if (cut_buffer->midi_notes.empty()) {
4351                         return;
4352                 }
4353         } else {
4354                 if (cut_buffer->empty()) {
4355                         return;
4356                 }
4357         }
4358
4359         if (position == max_framepos) {
4360                 position = get_preferred_edit_position();
4361                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("preferred edit position is %1\n", position));
4362         }
4363
4364         TrackViewList ts;
4365         TrackViewList::iterator i;
4366         size_t nth;
4367
4368         /* get everything in the correct order */
4369
4370         if (_edit_point == Editing::EditAtMouse && entered_track) {
4371                 /* With the mouse edit point, paste onto the track under the mouse */
4372                 ts.push_back (entered_track);
4373         } else if (!selection->tracks.empty()) {
4374                 /* Otherwise, if there are some selected tracks, paste to them */
4375                 ts = selection->tracks.filter_to_unique_playlists ();
4376                 sort_track_selection (ts);
4377         } else if (_last_cut_copy_source_track) {
4378                 /* Otherwise paste to the track that the cut/copy came from;
4379                    see discussion in mantis #3333.
4380                 */
4381                 ts.push_back (_last_cut_copy_source_track);
4382         }
4383
4384         if (internal_editing ()) {
4385
4386                 /* undo/redo is handled by individual tracks/regions */
4387
4388                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4389
4390                         RegionSelection rs;
4391                         RegionSelection::iterator r;
4392                         MidiNoteSelection::iterator cb;
4393
4394                         get_regions_at (rs, position, ts);
4395
4396                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4397                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4398                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4399                                 if (mrv) {
4400                                         mrv->paste (position, times, **cb);
4401                                         ++cb;
4402                                 }
4403                         }
4404                 }
4405
4406         } else {
4407
4408                 /* we do redo (do you do voodoo?) */
4409
4410                 begin_reversible_command (Operations::paste);
4411
4412                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4413                         (*i)->paste (position, times, *cut_buffer, nth);
4414                 }
4415
4416                 commit_reversible_command ();
4417         }
4418 }
4419
4420 void
4421 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4422 {
4423         boost::shared_ptr<Playlist> playlist;
4424         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4425         RegionSelection foo;
4426
4427         framepos_t const start_frame = regions.start ();
4428         framepos_t const end_frame = regions.end_frame ();
4429
4430         begin_reversible_command (Operations::duplicate_region);
4431
4432         selection->clear_regions ();
4433
4434         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4435
4436                 boost::shared_ptr<Region> r ((*i)->region());
4437
4438                 TimeAxisView& tv = (*i)->get_time_axis_view();
4439                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4440                 latest_regionviews.clear ();
4441                 sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
4442
4443                 playlist = (*i)->region()->playlist();
4444                 playlist->clear_changes ();
4445                 playlist->duplicate (r, end_frame + (r->first_frame() - start_frame), times);
4446                 _session->add_command(new StatefulDiffCommand (playlist));
4447
4448                 c.disconnect ();
4449
4450                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4451         }
4452
4453         commit_reversible_command ();
4454
4455         if (!foo.empty()) {
4456                 selection->set (foo);
4457         }
4458 }
4459
4460 void
4461 Editor::duplicate_selection (float times)
4462 {
4463         if (selection->time.empty() || selection->tracks.empty()) {
4464                 return;
4465         }
4466
4467         boost::shared_ptr<Playlist> playlist;
4468         vector<boost::shared_ptr<Region> > new_regions;
4469         vector<boost::shared_ptr<Region> >::iterator ri;
4470
4471         create_region_from_selection (new_regions);
4472
4473         if (new_regions.empty()) {
4474                 return;
4475         }
4476
4477         begin_reversible_command (_("duplicate selection"));
4478
4479         ri = new_regions.begin();
4480
4481         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4482
4483         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4484                 if ((playlist = (*i)->playlist()) == 0) {
4485                         continue;
4486                 }
4487                 playlist->clear_changes ();
4488                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4489                 _session->add_command (new StatefulDiffCommand (playlist));
4490
4491                 ++ri;
4492                 if (ri == new_regions.end()) {
4493                         --ri;
4494                 }
4495         }
4496
4497         commit_reversible_command ();
4498 }
4499
4500 /** Reset all selected points to the relevant default value */
4501 void
4502 Editor::reset_point_selection ()
4503 {
4504         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4505                 ARDOUR::AutomationList::iterator j = (*i)->model ();
4506                 (*j)->value = (*i)->line().the_list()->default_value ();
4507         }
4508 }
4509
4510 void
4511 Editor::center_playhead ()
4512 {
4513         float const page = _visible_canvas_width * samples_per_pixel;
4514         center_screen_internal (playhead_cursor->current_frame (), page);
4515 }
4516
4517 void
4518 Editor::center_edit_point ()
4519 {
4520         float const page = _visible_canvas_width * samples_per_pixel;
4521         center_screen_internal (get_preferred_edit_position(), page);
4522 }
4523
4524 /** Caller must begin and commit a reversible command */
4525 void
4526 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4527 {
4528         playlist->clear_changes ();
4529         playlist->clear ();
4530         _session->add_command (new StatefulDiffCommand (playlist));
4531 }
4532
4533 void
4534 Editor::nudge_track (bool use_edit, bool forwards)
4535 {
4536         boost::shared_ptr<Playlist> playlist;
4537         framepos_t distance;
4538         framepos_t next_distance;
4539         framepos_t start;
4540
4541         if (use_edit) {
4542                 start = get_preferred_edit_position();
4543         } else {
4544                 start = 0;
4545         }
4546
4547         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4548                 return;
4549         }
4550
4551         if (selection->tracks.empty()) {
4552                 return;
4553         }
4554
4555         begin_reversible_command (_("nudge track"));
4556
4557         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4558
4559         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4560
4561                 if ((playlist = (*i)->playlist()) == 0) {
4562                         continue;
4563                 }
4564
4565                 playlist->clear_changes ();
4566                 playlist->clear_owned_changes ();
4567
4568                 playlist->nudge_after (start, distance, forwards);
4569
4570                 vector<Command*> cmds;
4571
4572                 playlist->rdiff (cmds);
4573                 _session->add_commands (cmds);
4574
4575                 _session->add_command (new StatefulDiffCommand (playlist));
4576         }
4577
4578         commit_reversible_command ();
4579 }
4580
4581 void
4582 Editor::remove_last_capture ()
4583 {
4584         vector<string> choices;
4585         string prompt;
4586
4587         if (!_session) {
4588                 return;
4589         }
4590
4591         if (Config->get_verify_remove_last_capture()) {
4592                 prompt  = _("Do you really want to destroy the last capture?"
4593                             "\n(This is destructive and cannot be undone)");
4594
4595                 choices.push_back (_("No, do nothing."));
4596                 choices.push_back (_("Yes, destroy it."));
4597
4598                 Gtkmm2ext::Choice prompter (_("Destroy last capture"), prompt, choices);
4599
4600                 if (prompter.run () == 1) {
4601                         _session->remove_last_capture ();
4602                         _regions->redisplay ();
4603                 }
4604
4605         } else {
4606                 _session->remove_last_capture();
4607                 _regions->redisplay ();
4608         }
4609 }
4610
4611 void
4612 Editor::normalize_region ()
4613 {
4614         if (!_session) {
4615                 return;
4616         }
4617
4618         RegionSelection rs = get_regions_from_selection_and_entered ();
4619
4620         if (rs.empty()) {
4621                 return;
4622         }
4623
4624         NormalizeDialog dialog (rs.size() > 1);
4625
4626         if (dialog.run () == RESPONSE_CANCEL) {
4627                 return;
4628         }
4629
4630         set_canvas_cursor (_cursors->wait);
4631         gdk_flush ();
4632
4633         /* XXX: should really only count audio regions here */
4634         int const regions = rs.size ();
4635
4636         /* Make a list of the selected audio regions' maximum amplitudes, and also
4637            obtain the maximum amplitude of them all.
4638         */
4639         list<double> max_amps;
4640         double max_amp = 0;
4641         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
4642                 AudioRegionView const * arv = dynamic_cast<AudioRegionView const *> (*i);
4643                 if (arv) {
4644                         dialog.descend (1.0 / regions);
4645                         double const a = arv->audio_region()->maximum_amplitude (&dialog);
4646
4647                         if (a == -1) {
4648                                 /* the user cancelled the operation */
4649                                 set_canvas_cursor (current_canvas_cursor);
4650                                 return;
4651                         }
4652
4653                         max_amps.push_back (a);
4654                         max_amp = max (max_amp, a);
4655                         dialog.ascend ();
4656                 }
4657         }
4658
4659         begin_reversible_command (_("normalize"));
4660
4661         list<double>::const_iterator a = max_amps.begin ();
4662
4663         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4664                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*r);
4665                 if (!arv) {
4666                         continue;
4667                 }
4668
4669                 arv->region()->clear_changes ();
4670
4671                 double const amp = dialog.normalize_individually() ? *a : max_amp;
4672
4673                 arv->audio_region()->normalize (amp, dialog.target ());
4674                 _session->add_command (new StatefulDiffCommand (arv->region()));
4675
4676                 ++a;
4677         }
4678
4679         commit_reversible_command ();
4680         set_canvas_cursor (current_canvas_cursor);
4681 }
4682
4683
4684 void
4685 Editor::reset_region_scale_amplitude ()
4686 {
4687         if (!_session) {
4688                 return;
4689         }
4690
4691         RegionSelection rs = get_regions_from_selection_and_entered ();
4692
4693         if (rs.empty()) {
4694                 return;
4695         }
4696
4697         begin_reversible_command ("reset gain");
4698
4699         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4700                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4701                 if (!arv)
4702                         continue;
4703                 arv->region()->clear_changes ();
4704                 arv->audio_region()->set_scale_amplitude (1.0f);
4705                 _session->add_command (new StatefulDiffCommand (arv->region()));
4706         }
4707
4708         commit_reversible_command ();
4709 }
4710
4711 void
4712 Editor::adjust_region_gain (bool up)
4713 {
4714         RegionSelection rs = get_regions_from_selection_and_entered ();
4715
4716         if (!_session || rs.empty()) {
4717                 return;
4718         }
4719
4720         begin_reversible_command ("adjust region gain");
4721
4722         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4723                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4724                 if (!arv) {
4725                         continue;
4726                 }
4727
4728                 arv->region()->clear_changes ();
4729
4730                 double dB = accurate_coefficient_to_dB (arv->audio_region()->scale_amplitude ());
4731
4732                 if (up) {
4733                         dB += 1;
4734                 } else {
4735                         dB -= 1;
4736                 }
4737
4738                 arv->audio_region()->set_scale_amplitude (dB_to_coefficient (dB));
4739                 _session->add_command (new StatefulDiffCommand (arv->region()));
4740         }
4741
4742         commit_reversible_command ();
4743 }
4744
4745
4746 void
4747 Editor::reverse_region ()
4748 {
4749         if (!_session) {
4750                 return;
4751         }
4752
4753         Reverse rev (*_session);
4754         apply_filter (rev, _("reverse regions"));
4755 }
4756
4757 void
4758 Editor::strip_region_silence ()
4759 {
4760         if (!_session) {
4761                 return;
4762         }
4763
4764         RegionSelection rs = get_regions_from_selection_and_entered ();
4765
4766         if (rs.empty()) {
4767                 return;
4768         }
4769
4770         std::list<RegionView*> audio_only;
4771
4772         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4773                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4774                 if (arv) {
4775                         audio_only.push_back (arv);
4776                 }
4777         }
4778
4779         StripSilenceDialog d (_session, audio_only);
4780         int const r = d.run ();
4781
4782         d.drop_rects ();
4783
4784         if (r == Gtk::RESPONSE_OK) {
4785                 ARDOUR::AudioIntervalMap silences;
4786                 d.silences (silences);
4787                 StripSilence s (*_session, silences, d.fade_length());
4788                 apply_filter (s, _("strip silence"), &d);
4789         }
4790 }
4791
4792 Command*
4793 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4794 {
4795         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4796         mrv.selection_as_notelist (selected, true);
4797
4798         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4799         v.push_back (selected);
4800
4801         framepos_t pos_frames = mrv.midi_region()->position() - mrv.midi_region()->start();
4802         double     pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
4803
4804         return op (mrv.midi_region()->model(), pos_beats, v);
4805 }
4806
4807 void
4808 Editor::apply_midi_note_edit_op (MidiOperator& op)
4809 {
4810         Command* cmd;
4811
4812         RegionSelection rs = get_regions_from_selection_and_entered ();
4813
4814         if (rs.empty()) {
4815                 return;
4816         }
4817
4818         begin_reversible_command (op.name ());
4819
4820         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4821                 RegionSelection::iterator tmp = r;
4822                 ++tmp;
4823
4824                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4825
4826                 if (mrv) {
4827                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4828                         if (cmd) {
4829                                 (*cmd)();
4830                                 _session->add_command (cmd);
4831                         }
4832                 }
4833
4834                 r = tmp;
4835         }
4836
4837         commit_reversible_command ();
4838 }
4839
4840 void
4841 Editor::fork_region ()
4842 {
4843         RegionSelection rs = get_regions_from_selection_and_entered ();
4844
4845         if (rs.empty()) {
4846                 return;
4847         }
4848
4849         begin_reversible_command (_("Fork Region(s)"));
4850
4851         set_canvas_cursor (_cursors->wait);
4852         gdk_flush ();
4853
4854         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4855                 RegionSelection::iterator tmp = r;
4856                 ++tmp;
4857
4858                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4859
4860                 if (mrv) {
4861                         try {
4862                                 boost::shared_ptr<Playlist> playlist = mrv->region()->playlist();
4863                                 boost::shared_ptr<MidiSource> new_source = _session->create_midi_source_by_stealing_name (mrv->midi_view()->track());
4864                                 boost::shared_ptr<MidiRegion> newregion = mrv->midi_region()->clone (new_source);
4865
4866                                 playlist->clear_changes ();
4867                                 playlist->replace_region (mrv->region(), newregion, mrv->region()->position());
4868                                 _session->add_command(new StatefulDiffCommand (playlist));
4869                         } catch (...) {
4870                                 error << string_compose (_("Could not unlink %1"), mrv->region()->name()) << endmsg;
4871                         }
4872                 }
4873
4874                 r = tmp;
4875         }
4876
4877         commit_reversible_command ();
4878
4879         set_canvas_cursor (current_canvas_cursor);
4880 }
4881
4882 void
4883 Editor::quantize_region ()
4884 {
4885         int selected_midi_region_cnt = 0;
4886
4887         if (!_session) {
4888                 return;
4889         }
4890
4891         RegionSelection rs = get_regions_from_selection_and_entered ();
4892
4893         if (rs.empty()) {
4894                 return;
4895         }
4896
4897         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4898                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4899                 if (mrv) {
4900                         selected_midi_region_cnt++;
4901                 }
4902         }
4903
4904         if (selected_midi_region_cnt == 0) {
4905                 return;
4906         }
4907
4908         QuantizeDialog* qd = new QuantizeDialog (*this);
4909
4910         qd->present ();
4911         const int r = qd->run ();
4912         qd->hide ();
4913
4914         if (r == Gtk::RESPONSE_OK) {
4915                 Quantize quant (*_session, qd->snap_start(), qd->snap_end(),
4916                                 qd->start_grid_size(), qd->end_grid_size(),
4917                                 qd->strength(), qd->swing(), qd->threshold());
4918
4919                 apply_midi_note_edit_op (quant);
4920         }
4921 }
4922
4923 void
4924 Editor::insert_patch_change (bool from_context)
4925 {
4926         RegionSelection rs = get_regions_from_selection_and_entered ();
4927
4928         if (rs.empty ()) {
4929                 return;
4930         }
4931
4932         const framepos_t p = get_preferred_edit_position (false, from_context);
4933
4934         /* XXX: bit of a hack; use the MIDNAM from the first selected region;
4935            there may be more than one, but the PatchChangeDialog can only offer
4936            one set of patch menus.
4937         */
4938         MidiRegionView* first = dynamic_cast<MidiRegionView*> (rs.front ());
4939
4940         Evoral::PatchChange<Evoral::MusicalTime> empty (0, 0, 0, 0);
4941         PatchChangeDialog d (0, _session, empty, first->instrument_info(), Gtk::Stock::ADD);
4942
4943         if (d.run() == RESPONSE_CANCEL) {
4944                 return;
4945         }
4946
4947         for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4948                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*i);
4949                 if (mrv) {
4950                         if (p >= mrv->region()->first_frame() && p <= mrv->region()->last_frame()) {
4951                                 mrv->add_patch_change (p - mrv->region()->position(), d.patch ());
4952                         }
4953                 }
4954         }
4955 }
4956
4957 void
4958 Editor::apply_filter (Filter& filter, string command, ProgressReporter* progress)
4959 {
4960         RegionSelection rs = get_regions_from_selection_and_entered ();
4961
4962         if (rs.empty()) {
4963                 return;
4964         }
4965
4966         begin_reversible_command (command);
4967
4968         set_canvas_cursor (_cursors->wait);
4969         gdk_flush ();
4970
4971         int n = 0;
4972         int const N = rs.size ();
4973
4974         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4975                 RegionSelection::iterator tmp = r;
4976                 ++tmp;
4977
4978                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4979                 if (arv) {
4980                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4981
4982                         if (progress) {
4983                                 progress->descend (1.0 / N);
4984                         }
4985
4986                         if (arv->audio_region()->apply (filter, progress) == 0) {
4987
4988                                 playlist->clear_changes ();
4989                                 playlist->clear_owned_changes ();
4990
4991                                 if (filter.results.empty ()) {
4992
4993                                         /* no regions returned; remove the old one */
4994                                         playlist->remove_region (arv->region ());
4995
4996                                 } else {
4997
4998                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4999
5000                                         /* first region replaces the old one */
5001                                         playlist->replace_region (arv->region(), *res, (*res)->position());
5002                                         ++res;
5003
5004                                         /* add the rest */
5005                                         while (res != filter.results.end()) {
5006                                                 playlist->add_region (*res, (*res)->position());
5007                                                 ++res;
5008                                         }
5009
5010                                 }
5011
5012                                 /* We might have removed regions, which alters other regions' layering_index,
5013                                    so we need to do a recursive diff here.
5014                                 */
5015                                 vector<Command*> cmds;
5016                                 playlist->rdiff (cmds);
5017                                 _session->add_commands (cmds);
5018
5019                                 _session->add_command(new StatefulDiffCommand (playlist));
5020                         } else {
5021                                 goto out;
5022                         }
5023
5024                         if (progress) {
5025                                 progress->ascend ();
5026                         }
5027                 }
5028
5029                 r = tmp;
5030                 ++n;
5031         }
5032
5033         commit_reversible_command ();
5034
5035   out:
5036         set_canvas_cursor (current_canvas_cursor);
5037 }
5038
5039 void
5040 Editor::external_edit_region ()
5041 {
5042         /* more to come */
5043 }
5044
5045 void
5046 Editor::reset_region_gain_envelopes ()
5047 {
5048         RegionSelection rs = get_regions_from_selection_and_entered ();
5049
5050         if (!_session || rs.empty()) {
5051                 return;
5052         }
5053
5054         _session->begin_reversible_command (_("reset region gain"));
5055
5056         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5057                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5058                 if (arv) {
5059                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
5060                         XMLNode& before (alist->get_state());
5061
5062                         arv->audio_region()->set_default_envelope ();
5063                         _session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
5064                 }
5065         }
5066
5067         _session->commit_reversible_command ();
5068 }
5069
5070 void
5071 Editor::set_region_gain_visibility (RegionView* rv)
5072 {
5073         AudioRegionView* arv = dynamic_cast<AudioRegionView*> (rv);
5074         if (arv) {
5075                 arv->update_envelope_visibility();
5076         }
5077 }
5078
5079 void
5080 Editor::set_gain_envelope_visibility ()
5081 {
5082         if (!_session) {
5083                 return;
5084         }
5085
5086         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5087                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5088                 if (v) {
5089                         v->audio_view()->foreach_regionview (sigc::mem_fun (this, &Editor::set_region_gain_visibility));
5090                 }
5091         }
5092 }
5093
5094 void
5095 Editor::toggle_gain_envelope_active ()
5096 {
5097         if (_ignore_region_action) {
5098                 return;
5099         }
5100
5101         RegionSelection rs = get_regions_from_selection_and_entered ();
5102
5103         if (!_session || rs.empty()) {
5104                 return;
5105         }
5106
5107         _session->begin_reversible_command (_("region gain envelope active"));
5108
5109         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5110                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5111                 if (arv) {
5112                         arv->region()->clear_changes ();
5113                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5114                         _session->add_command (new StatefulDiffCommand (arv->region()));
5115                 }
5116         }
5117
5118         _session->commit_reversible_command ();
5119 }
5120
5121 void
5122 Editor::toggle_region_lock ()
5123 {
5124         if (_ignore_region_action) {
5125                 return;
5126         }
5127
5128         RegionSelection rs = get_regions_from_selection_and_entered ();
5129
5130         if (!_session || rs.empty()) {
5131                 return;
5132         }
5133
5134         _session->begin_reversible_command (_("toggle region lock"));
5135
5136         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5137                 (*i)->region()->clear_changes ();
5138                 (*i)->region()->set_locked (!(*i)->region()->locked());
5139                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5140         }
5141
5142         _session->commit_reversible_command ();
5143 }
5144
5145 void
5146 Editor::toggle_region_video_lock ()
5147 {
5148         if (_ignore_region_action) {
5149                 return;
5150         }
5151
5152         RegionSelection rs = get_regions_from_selection_and_entered ();
5153
5154         if (!_session || rs.empty()) {
5155                 return;
5156         }
5157
5158         _session->begin_reversible_command (_("Toggle Video Lock"));
5159
5160         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5161                 (*i)->region()->clear_changes ();
5162                 (*i)->region()->set_video_locked (!(*i)->region()->video_locked());
5163                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5164         }
5165
5166         _session->commit_reversible_command ();
5167 }
5168
5169 void
5170 Editor::toggle_region_lock_style ()
5171 {
5172         if (_ignore_region_action) {
5173                 return;
5174         }
5175
5176         RegionSelection rs = get_regions_from_selection_and_entered ();
5177
5178         if (!_session || rs.empty()) {
5179                 return;
5180         }
5181
5182         _session->begin_reversible_command (_("region lock style"));
5183
5184         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5185                 (*i)->region()->clear_changes ();
5186                 PositionLockStyle const ns = (*i)->region()->position_lock_style() == AudioTime ? MusicTime : AudioTime;
5187                 (*i)->region()->set_position_lock_style (ns);
5188                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5189         }
5190
5191         _session->commit_reversible_command ();
5192 }
5193
5194 void
5195 Editor::toggle_opaque_region ()
5196 {
5197         if (_ignore_region_action) {
5198                 return;
5199         }
5200
5201         RegionSelection rs = get_regions_from_selection_and_entered ();
5202
5203         if (!_session || rs.empty()) {
5204                 return;
5205         }
5206
5207         _session->begin_reversible_command (_("change region opacity"));
5208
5209         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5210                 (*i)->region()->clear_changes ();
5211                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5212                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5213         }
5214
5215         _session->commit_reversible_command ();
5216 }
5217
5218 void
5219 Editor::toggle_record_enable ()
5220 {
5221         bool new_state = false;
5222         bool first = true;
5223         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5224                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5225                 if (!rtav)
5226                         continue;
5227                 if (!rtav->is_track())
5228                         continue;
5229
5230                 if (first) {
5231                         new_state = !rtav->track()->record_enabled();
5232                         first = false;
5233                 }
5234
5235                 rtav->track()->set_record_enabled (new_state, this);
5236         }
5237 }
5238
5239 void
5240 Editor::toggle_solo ()
5241 {
5242         bool new_state = false;
5243         bool first = true;
5244         boost::shared_ptr<RouteList> rl (new RouteList);
5245
5246         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5247                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5248
5249                 if (!rtav) {
5250                         continue;
5251                 }
5252
5253                 if (first) {
5254                         new_state = !rtav->route()->soloed ();
5255                         first = false;
5256                 }
5257
5258                 rl->push_back (rtav->route());
5259         }
5260
5261         _session->set_solo (rl, new_state, Session::rt_cleanup, true);
5262 }
5263
5264 void
5265 Editor::toggle_mute ()
5266 {
5267         bool new_state = false;
5268         bool first = true;
5269         boost::shared_ptr<RouteList> rl (new RouteList);
5270
5271         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5272                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5273
5274                 if (!rtav) {
5275                         continue;
5276                 }
5277
5278                 if (first) {
5279                         new_state = !rtav->route()->muted();
5280                         first = false;
5281                 }
5282
5283                 rl->push_back (rtav->route());
5284         }
5285
5286         _session->set_mute (rl, new_state, Session::rt_cleanup, true);
5287 }
5288
5289 void
5290 Editor::toggle_solo_isolate ()
5291 {
5292 }
5293
5294
5295 void
5296 Editor::fade_range ()
5297 {
5298         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
5299
5300         begin_reversible_command (_("fade range"));
5301
5302         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
5303                 (*i)->fade_range (selection->time);
5304         }
5305
5306         commit_reversible_command ();
5307 }
5308
5309
5310 void
5311 Editor::set_fade_length (bool in)
5312 {
5313         RegionSelection rs = get_regions_from_selection_and_entered ();
5314
5315         if (rs.empty()) {
5316                 return;
5317         }
5318
5319         /* we need a region to measure the offset from the start */
5320
5321         RegionView* rv = rs.front ();
5322
5323         framepos_t pos = get_preferred_edit_position();
5324         framepos_t len;
5325         char const * cmd;
5326
5327         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5328                 /* edit point is outside the relevant region */
5329                 return;
5330         }
5331
5332         if (in) {
5333                 if (pos <= rv->region()->position()) {
5334                         /* can't do it */
5335                         return;
5336                 }
5337                 len = pos - rv->region()->position();
5338                 cmd = _("set fade in length");
5339         } else {
5340                 if (pos >= rv->region()->last_frame()) {
5341                         /* can't do it */
5342                         return;
5343                 }
5344                 len = rv->region()->last_frame() - pos;
5345                 cmd = _("set fade out length");
5346         }
5347
5348         begin_reversible_command (cmd);
5349
5350         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5351                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5352
5353                 if (!tmp) {
5354                         return;
5355                 }
5356
5357                 boost::shared_ptr<AutomationList> alist;
5358                 if (in) {
5359                         alist = tmp->audio_region()->fade_in();
5360                 } else {
5361                         alist = tmp->audio_region()->fade_out();
5362                 }
5363
5364                 XMLNode &before = alist->get_state();
5365
5366                 if (in) {
5367                         tmp->audio_region()->set_fade_in_length (len);
5368                         tmp->audio_region()->set_fade_in_active (true);
5369                 } else {
5370                         tmp->audio_region()->set_fade_out_length (len);
5371                         tmp->audio_region()->set_fade_out_active (true);
5372                 }
5373
5374                 XMLNode &after = alist->get_state();
5375                 _session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5376         }
5377
5378         commit_reversible_command ();
5379 }
5380
5381 void
5382 Editor::set_fade_in_shape (FadeShape shape)
5383 {
5384         RegionSelection rs = get_regions_from_selection_and_entered ();
5385
5386         if (rs.empty()) {
5387                 return;
5388         }
5389
5390         begin_reversible_command (_("set fade in shape"));
5391
5392         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5393                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5394
5395                 if (!tmp) {
5396                         return;
5397                 }
5398
5399                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5400                 XMLNode &before = alist->get_state();
5401
5402                 tmp->audio_region()->set_fade_in_shape (shape);
5403
5404                 XMLNode &after = alist->get_state();
5405                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5406         }
5407
5408         commit_reversible_command ();
5409
5410 }
5411
5412 void
5413 Editor::set_fade_out_shape (FadeShape shape)
5414 {
5415         RegionSelection rs = get_regions_from_selection_and_entered ();
5416
5417         if (rs.empty()) {
5418                 return;
5419         }
5420
5421         begin_reversible_command (_("set fade out shape"));
5422
5423         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5424                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5425
5426                 if (!tmp) {
5427                         return;
5428                 }
5429
5430                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5431                 XMLNode &before = alist->get_state();
5432
5433                 tmp->audio_region()->set_fade_out_shape (shape);
5434
5435                 XMLNode &after = alist->get_state();
5436                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5437         }
5438
5439         commit_reversible_command ();
5440 }
5441
5442 void
5443 Editor::set_fade_in_active (bool yn)
5444 {
5445         RegionSelection rs = get_regions_from_selection_and_entered ();
5446
5447         if (rs.empty()) {
5448                 return;
5449         }
5450
5451         begin_reversible_command (_("set fade in active"));
5452
5453         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5454                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5455
5456                 if (!tmp) {
5457                         return;
5458                 }
5459
5460
5461                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5462
5463                 ar->clear_changes ();
5464                 ar->set_fade_in_active (yn);
5465                 _session->add_command (new StatefulDiffCommand (ar));
5466         }
5467
5468         commit_reversible_command ();
5469 }
5470
5471 void
5472 Editor::set_fade_out_active (bool yn)
5473 {
5474         RegionSelection rs = get_regions_from_selection_and_entered ();
5475
5476         if (rs.empty()) {
5477                 return;
5478         }
5479
5480         begin_reversible_command (_("set fade out active"));
5481
5482         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5483                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5484
5485                 if (!tmp) {
5486                         return;
5487                 }
5488
5489                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5490
5491                 ar->clear_changes ();
5492                 ar->set_fade_out_active (yn);
5493                 _session->add_command(new StatefulDiffCommand (ar));
5494         }
5495
5496         commit_reversible_command ();
5497 }
5498
5499 void
5500 Editor::toggle_region_fades (int dir)
5501 {
5502         if (_ignore_region_action) {
5503                 return;
5504         }
5505
5506         boost::shared_ptr<AudioRegion> ar;
5507         bool yn = false;
5508
5509         RegionSelection rs = get_regions_from_selection_and_entered ();
5510
5511         if (rs.empty()) {
5512                 return;
5513         }
5514
5515         RegionSelection::iterator i;
5516         for (i = rs.begin(); i != rs.end(); ++i) {
5517                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5518                         if (dir == -1) {
5519                                 yn = ar->fade_out_active ();
5520                         } else {
5521                                 yn = ar->fade_in_active ();
5522                         }
5523                         break;
5524                 }
5525         }
5526
5527         if (i == rs.end()) {
5528                 return;
5529         }
5530
5531         /* XXX should this undo-able? */
5532
5533         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5534                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5535                         continue;
5536                 }
5537                 if (dir == 1 || dir == 0) {
5538                         ar->set_fade_in_active (!yn);
5539                 }
5540
5541                 if (dir == -1 || dir == 0) {
5542                         ar->set_fade_out_active (!yn);
5543                 }
5544         }
5545 }
5546
5547
5548 /** Update region fade visibility after its configuration has been changed */
5549 void
5550 Editor::update_region_fade_visibility ()
5551 {
5552         bool _fade_visibility = _session->config.get_show_region_fades ();
5553
5554         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5555                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5556                 if (v) {
5557                         if (_fade_visibility) {
5558                                 v->audio_view()->show_all_fades ();
5559                         } else {
5560                                 v->audio_view()->hide_all_fades ();
5561                         }
5562                 }
5563         }
5564 }
5565
5566 void
5567 Editor::set_edit_point ()
5568 {
5569         framepos_t where;
5570         bool ignored;
5571
5572         if (!mouse_frame (where, ignored)) {
5573                 return;
5574         }
5575
5576         snap_to (where);
5577
5578         if (selection->markers.empty()) {
5579
5580                 mouse_add_new_marker (where);
5581
5582         } else {
5583                 bool ignored;
5584
5585                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5586
5587                 if (loc) {
5588                         loc->move_to (where);
5589                 }
5590         }
5591 }
5592
5593 void
5594 Editor::set_playhead_cursor ()
5595 {
5596         if (entered_marker) {
5597                 _session->request_locate (entered_marker->position(), _session->transport_rolling());
5598         } else {
5599                 framepos_t where;
5600                 bool ignored;
5601
5602                 if (!mouse_frame (where, ignored)) {
5603                         return;
5604                 }
5605
5606                 snap_to (where);
5607
5608                 if (_session) {
5609                         _session->request_locate (where, _session->transport_rolling());
5610                 }
5611         }
5612
5613         if ( Config->get_follow_edits() )
5614                 cancel_time_selection();
5615 }
5616
5617 void
5618 Editor::split_region ()
5619 {
5620         if ( !selection->time.empty()) {
5621                 separate_regions_between (selection->time);
5622                 return;
5623         }
5624
5625         RegionSelection rs = get_regions_from_selection_and_edit_point ();
5626
5627         framepos_t where = get_preferred_edit_position ();
5628
5629         if (rs.empty()) {
5630                 return;
5631         }
5632
5633         split_regions_at (where, rs);
5634 }
5635
5636 struct EditorOrderRouteSorter {
5637     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5638             return a->order_key () < b->order_key ();
5639     }
5640 };
5641
5642 void
5643 Editor::select_next_route()
5644 {
5645         if (selection->tracks.empty()) {
5646                 selection->set (track_views.front());
5647                 return;
5648         }
5649
5650         TimeAxisView* current = selection->tracks.front();
5651
5652         RouteUI *rui;
5653         do {
5654                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5655                         if (*i == current) {
5656                                 ++i;
5657                                 if (i != track_views.end()) {
5658                                         current = (*i);
5659                                 } else {
5660                                         current = (*(track_views.begin()));
5661                                         //selection->set (*(track_views.begin()));
5662                                 }
5663                                 break;
5664                         }
5665                 }
5666                 rui = dynamic_cast<RouteUI *>(current);
5667         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5668
5669         selection->set(current);
5670
5671         ensure_time_axis_view_is_visible (*current, false);
5672 }
5673
5674 void
5675 Editor::select_prev_route()
5676 {
5677         if (selection->tracks.empty()) {
5678                 selection->set (track_views.front());
5679                 return;
5680         }
5681
5682         TimeAxisView* current = selection->tracks.front();
5683
5684         RouteUI *rui;
5685         do {
5686                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5687                         if (*i == current) {
5688                                 ++i;
5689                                 if (i != track_views.rend()) {
5690                                         current = (*i);
5691                                 } else {
5692                                         current = *(track_views.rbegin());
5693                                 }
5694                                 break;
5695                         }
5696                 }
5697                 rui = dynamic_cast<RouteUI *>(current);
5698         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5699
5700         selection->set (current);
5701
5702         ensure_time_axis_view_is_visible (*current, false);
5703 }
5704
5705 void
5706 Editor::set_loop_from_selection (bool play)
5707 {
5708         if (_session == 0 || selection->time.empty()) {
5709                 return;
5710         }
5711
5712         framepos_t start = selection->time[clicked_selection].start;
5713         framepos_t end = selection->time[clicked_selection].end;
5714
5715         set_loop_range (start, end,  _("set loop range from selection"));
5716
5717         if (play) {
5718                 _session->request_locate (start, true);
5719                 _session->request_play_loop (true);
5720         }
5721 }
5722
5723 void
5724 Editor::set_loop_from_edit_range (bool play)
5725 {
5726         if (_session == 0) {
5727                 return;
5728         }
5729
5730         framepos_t start;
5731         framepos_t end;
5732
5733         if (!get_edit_op_range (start, end)) {
5734                 return;
5735         }
5736
5737         set_loop_range (start, end,  _("set loop range from edit range"));
5738
5739         if (play) {
5740                 _session->request_locate (start, true);
5741                 _session->request_play_loop (true);
5742         }
5743 }
5744
5745 void
5746 Editor::set_loop_from_region (bool play)
5747 {
5748         framepos_t start = max_framepos;
5749         framepos_t end = 0;
5750
5751         RegionSelection rs = get_regions_from_selection_and_entered ();
5752
5753         if (rs.empty()) {
5754                 return;
5755         }
5756
5757         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5758                 if ((*i)->region()->position() < start) {
5759                         start = (*i)->region()->position();
5760                 }
5761                 if ((*i)->region()->last_frame() + 1 > end) {
5762                         end = (*i)->region()->last_frame() + 1;
5763                 }
5764         }
5765
5766         set_loop_range (start, end, _("set loop range from region"));
5767
5768         if (play) {
5769                 _session->request_locate (start, true);
5770                 _session->request_play_loop (true);
5771         }
5772 }
5773
5774 void
5775 Editor::set_punch_from_selection ()
5776 {
5777         if (_session == 0 || selection->time.empty()) {
5778                 return;
5779         }
5780
5781         framepos_t start = selection->time[clicked_selection].start;
5782         framepos_t end = selection->time[clicked_selection].end;
5783
5784         set_punch_range (start, end,  _("set punch range from selection"));
5785 }
5786
5787 void
5788 Editor::set_punch_from_edit_range ()
5789 {
5790         if (_session == 0) {
5791                 return;
5792         }
5793
5794         framepos_t start;
5795         framepos_t end;
5796
5797         if (!get_edit_op_range (start, end)) {
5798                 return;
5799         }
5800
5801         set_punch_range (start, end,  _("set punch range from edit range"));
5802 }
5803
5804 void
5805 Editor::set_punch_from_region ()
5806 {
5807         framepos_t start = max_framepos;
5808         framepos_t end = 0;
5809
5810         RegionSelection rs = get_regions_from_selection_and_entered ();
5811
5812         if (rs.empty()) {
5813                 return;
5814         }
5815
5816         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5817                 if ((*i)->region()->position() < start) {
5818                         start = (*i)->region()->position();
5819                 }
5820                 if ((*i)->region()->last_frame() + 1 > end) {
5821                         end = (*i)->region()->last_frame() + 1;
5822                 }
5823         }
5824
5825         set_punch_range (start, end, _("set punch range from region"));
5826 }
5827
5828 void
5829 Editor::pitch_shift_region ()
5830 {
5831         RegionSelection rs = get_regions_from_selection_and_entered ();
5832
5833         RegionSelection audio_rs;
5834         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5835                 if (dynamic_cast<AudioRegionView*> (*i)) {
5836                         audio_rs.push_back (*i);
5837                 }
5838         }
5839
5840         if (audio_rs.empty()) {
5841                 return;
5842         }
5843
5844         pitch_shift (audio_rs, 1.2);
5845 }
5846
5847 void
5848 Editor::transpose_region ()
5849 {
5850         RegionSelection rs = get_regions_from_selection_and_entered ();
5851
5852         list<MidiRegionView*> midi_region_views;
5853         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5854                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
5855                 if (mrv) {
5856                         midi_region_views.push_back (mrv);
5857                 }
5858         }
5859
5860         TransposeDialog d;
5861         int const r = d.run ();
5862         if (r != RESPONSE_ACCEPT) {
5863                 return;
5864         }
5865
5866         for (list<MidiRegionView*>::iterator i = midi_region_views.begin(); i != midi_region_views.end(); ++i) {
5867                 (*i)->midi_region()->transpose (d.semitones ());
5868         }
5869 }
5870
5871 void
5872 Editor::set_tempo_from_region ()
5873 {
5874         RegionSelection rs = get_regions_from_selection_and_entered ();
5875
5876         if (!_session || rs.empty()) {
5877                 return;
5878         }
5879
5880         RegionView* rv = rs.front();
5881
5882         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5883 }
5884
5885 void
5886 Editor::use_range_as_bar ()
5887 {
5888         framepos_t start, end;
5889         if (get_edit_op_range (start, end)) {
5890                 define_one_bar (start, end);
5891         }
5892 }
5893
5894 void
5895 Editor::define_one_bar (framepos_t start, framepos_t end)
5896 {
5897         framepos_t length = end - start;
5898
5899         const Meter& m (_session->tempo_map().meter_at (start));
5900
5901         /* length = 1 bar */
5902
5903         /* now we want frames per beat.
5904            we have frames per bar, and beats per bar, so ...
5905         */
5906
5907         /* XXXX METER MATH */
5908
5909         double frames_per_beat = length / m.divisions_per_bar();
5910
5911         /* beats per minute = */
5912
5913         double beats_per_minute = (_session->frame_rate() * 60.0) / frames_per_beat;
5914
5915         /* now decide whether to:
5916
5917             (a) set global tempo
5918             (b) add a new tempo marker
5919
5920         */
5921
5922         const TempoSection& t (_session->tempo_map().tempo_section_at (start));
5923
5924         bool do_global = false;
5925
5926         if ((_session->tempo_map().n_tempos() == 1) && (_session->tempo_map().n_meters() == 1)) {
5927
5928                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5929                    at the start, or create a new marker
5930                 */
5931
5932                 vector<string> options;
5933                 options.push_back (_("Cancel"));
5934                 options.push_back (_("Add new marker"));
5935                 options.push_back (_("Set global tempo"));
5936
5937                 Choice c (
5938                         _("Define one bar"),
5939                         _("Do you want to set the global tempo or add a new tempo marker?"),
5940                         options
5941                         );
5942
5943                 c.set_default_response (2);
5944
5945                 switch (c.run()) {
5946                 case 0:
5947                         return;
5948
5949                 case 2:
5950                         do_global = true;
5951                         break;
5952
5953                 default:
5954                         do_global = false;
5955                 }
5956
5957         } else {
5958
5959                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5960                    if the marker is at the region starter, change it, otherwise add
5961                    a new tempo marker
5962                 */
5963         }
5964
5965         begin_reversible_command (_("set tempo from region"));
5966         XMLNode& before (_session->tempo_map().get_state());
5967
5968         if (do_global) {
5969                 _session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5970         } else if (t.frame() == start) {
5971                 _session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5972         } else {
5973                 Timecode::BBT_Time bbt;
5974                 _session->tempo_map().bbt_time (start, bbt);
5975                 _session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), bbt);
5976         }
5977
5978         XMLNode& after (_session->tempo_map().get_state());
5979
5980         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
5981         commit_reversible_command ();
5982 }
5983
5984 void
5985 Editor::split_region_at_transients ()
5986 {
5987         AnalysisFeatureList positions;
5988
5989         RegionSelection rs = get_regions_from_selection_and_entered ();
5990
5991         if (!_session || rs.empty()) {
5992                 return;
5993         }
5994
5995         _session->begin_reversible_command (_("split regions"));
5996
5997         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5998
5999                 RegionSelection::iterator tmp;
6000
6001                 tmp = i;
6002                 ++tmp;
6003
6004                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
6005
6006                 if (ar && (ar->get_transients (positions) == 0)) {
6007                         split_region_at_points ((*i)->region(), positions, true);
6008                         positions.clear ();
6009                 }
6010
6011                 i = tmp;
6012         }
6013
6014         _session->commit_reversible_command ();
6015
6016 }
6017
6018 void
6019 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret, bool select_new)
6020 {
6021         bool use_rhythmic_rodent = false;
6022
6023         boost::shared_ptr<Playlist> pl = r->playlist();
6024
6025         list<boost::shared_ptr<Region> > new_regions;
6026
6027         if (!pl) {
6028                 return;
6029         }
6030
6031         if (positions.empty()) {
6032                 return;
6033         }
6034
6035
6036         if (positions.size() > 20 && can_ferret) {
6037                 std::string msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
6038                 MessageDialog msg (msgstr,
6039                                    false,
6040                                    Gtk::MESSAGE_INFO,
6041                                    Gtk::BUTTONS_OK_CANCEL);
6042
6043                 if (can_ferret) {
6044                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
6045                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
6046                 } else {
6047                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
6048                 }
6049
6050                 msg.set_title (_("Excessive split?"));
6051                 msg.present ();
6052
6053                 int response = msg.run();
6054                 msg.hide ();
6055
6056                 switch (response) {
6057                 case RESPONSE_OK:
6058                         break;
6059                 case RESPONSE_APPLY:
6060                         use_rhythmic_rodent = true;
6061                         break;
6062                 default:
6063                         return;
6064                 }
6065         }
6066
6067         if (use_rhythmic_rodent) {
6068                 show_rhythm_ferret ();
6069                 return;
6070         }
6071
6072         AnalysisFeatureList::const_iterator x;
6073
6074         pl->clear_changes ();
6075         pl->clear_owned_changes ();
6076
6077         x = positions.begin();
6078
6079         if (x == positions.end()) {
6080                 return;
6081         }
6082
6083         pl->freeze ();
6084         pl->remove_region (r);
6085
6086         framepos_t pos = 0;
6087
6088         while (x != positions.end()) {
6089
6090                 /* deal with positons that are out of scope of present region bounds */
6091                 if (*x <= 0 || *x > r->length()) {
6092                         ++x;
6093                         continue;
6094                 }
6095
6096                 /* file start = original start + how far we from the initial position ?
6097                  */
6098
6099                 framepos_t file_start = r->start() + pos;
6100
6101                 /* length = next position - current position
6102                  */
6103
6104                 framepos_t len = (*x) - pos;
6105
6106                 /* XXX we do we really want to allow even single-sample regions?
6107                    shouldn't we have some kind of lower limit on region size?
6108                 */
6109
6110                 if (len <= 0) {
6111                         break;
6112                 }
6113
6114                 string new_name;
6115
6116                 if (RegionFactory::region_name (new_name, r->name())) {
6117                         break;
6118                 }
6119
6120                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6121
6122                 PropertyList plist;
6123
6124                 plist.add (ARDOUR::Properties::start, file_start);
6125                 plist.add (ARDOUR::Properties::length, len);
6126                 plist.add (ARDOUR::Properties::name, new_name);
6127                 plist.add (ARDOUR::Properties::layer, 0);
6128
6129                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
6130                 /* because we set annouce to false, manually add the new region to the
6131                    RegionFactory map
6132                 */
6133                 RegionFactory::map_add (nr);
6134
6135                 pl->add_region (nr, r->position() + pos);
6136
6137                 if (select_new) {
6138                         new_regions.push_front(nr);
6139                 }
6140
6141                 pos += len;
6142                 ++x;
6143         }
6144
6145         string new_name;
6146
6147         RegionFactory::region_name (new_name, r->name());
6148
6149         /* Add the final region */
6150         PropertyList plist;
6151
6152         plist.add (ARDOUR::Properties::start, r->start() + pos);
6153         plist.add (ARDOUR::Properties::length, r->last_frame() - (r->position() + pos) + 1);
6154         plist.add (ARDOUR::Properties::name, new_name);
6155         plist.add (ARDOUR::Properties::layer, 0);
6156
6157         boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
6158         /* because we set annouce to false, manually add the new region to the
6159            RegionFactory map
6160         */
6161         RegionFactory::map_add (nr);
6162         pl->add_region (nr, r->position() + pos);
6163
6164         if (select_new) {
6165                 new_regions.push_front(nr);
6166         }
6167
6168         pl->thaw ();
6169
6170         /* We might have removed regions, which alters other regions' layering_index,
6171            so we need to do a recursive diff here.
6172         */
6173         vector<Command*> cmds;
6174         pl->rdiff (cmds);
6175         _session->add_commands (cmds);
6176
6177         _session->add_command (new StatefulDiffCommand (pl));
6178
6179         if (select_new) {
6180
6181                 for (list<boost::shared_ptr<Region> >::iterator i = new_regions.begin(); i != new_regions.end(); ++i){
6182                         set_selected_regionview_from_region_list ((*i), Selection::Add);
6183                 }
6184         }
6185 }
6186
6187 void
6188 Editor::place_transient()
6189 {
6190         if (!_session) {
6191                 return;
6192         }
6193
6194         RegionSelection rs = get_regions_from_selection_and_edit_point ();
6195
6196         if (rs.empty()) {
6197                 return;
6198         }
6199
6200         framepos_t where = get_preferred_edit_position();
6201
6202         _session->begin_reversible_command (_("place transient"));
6203
6204         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6205                 framepos_t position = (*r)->region()->position();
6206                 (*r)->region()->add_transient(where - position);
6207         }
6208
6209         _session->commit_reversible_command ();
6210 }
6211
6212 void
6213 Editor::remove_transient(ArdourCanvas::Item* item)
6214 {
6215         if (!_session) {
6216                 return;
6217         }
6218
6219         ArdourCanvas::Line* _line = reinterpret_cast<ArdourCanvas::Line*> (item);
6220         assert (_line);
6221
6222         AudioRegionView* _arv = reinterpret_cast<AudioRegionView*> (item->get_data ("regionview"));
6223         _arv->remove_transient (*(float*) _line->get_data ("position"));
6224 }
6225
6226 void
6227 Editor::snap_regions_to_grid ()
6228 {
6229         list <boost::shared_ptr<Playlist > > used_playlists;
6230
6231         RegionSelection rs = get_regions_from_selection_and_entered ();
6232
6233         if (!_session || rs.empty()) {
6234                 return;
6235         }
6236
6237         _session->begin_reversible_command (_("snap regions to grid"));
6238
6239         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6240
6241                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
6242
6243                 if (!pl->frozen()) {
6244                         /* we haven't seen this playlist before */
6245
6246                         /* remember used playlists so we can thaw them later */
6247                         used_playlists.push_back(pl);
6248                         pl->freeze();
6249                 }
6250
6251                 framepos_t start_frame = (*r)->region()->first_frame ();
6252                 snap_to (start_frame);
6253                 (*r)->region()->set_position (start_frame);
6254         }
6255
6256         while (used_playlists.size() > 0) {
6257                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
6258                 (*i)->thaw();
6259                 used_playlists.pop_front();
6260         }
6261
6262         _session->commit_reversible_command ();
6263 }
6264
6265 void
6266 Editor::close_region_gaps ()
6267 {
6268         list <boost::shared_ptr<Playlist > > used_playlists;
6269
6270         RegionSelection rs = get_regions_from_selection_and_entered ();
6271
6272         if (!_session || rs.empty()) {
6273                 return;
6274         }
6275
6276         Dialog dialog (_("Close Region Gaps"));
6277
6278         Table table (2, 3);
6279         table.set_spacings (12);
6280         table.set_border_width (12);
6281         Label* l = manage (left_aligned_label (_("Crossfade length")));
6282         table.attach (*l, 0, 1, 0, 1);
6283
6284         SpinButton spin_crossfade (1, 0);
6285         spin_crossfade.set_range (0, 15);
6286         spin_crossfade.set_increments (1, 1);
6287         spin_crossfade.set_value (5);
6288         table.attach (spin_crossfade, 1, 2, 0, 1);
6289
6290         table.attach (*manage (new Label (_("ms"))), 2, 3, 0, 1);
6291
6292         l = manage (left_aligned_label (_("Pull-back length")));
6293         table.attach (*l, 0, 1, 1, 2);
6294
6295         SpinButton spin_pullback (1, 0);
6296         spin_pullback.set_range (0, 100);
6297         spin_pullback.set_increments (1, 1);
6298         spin_pullback.set_value(30);
6299         table.attach (spin_pullback, 1, 2, 1, 2);
6300
6301         table.attach (*manage (new Label (_("ms"))), 2, 3, 1, 2);
6302
6303         dialog.get_vbox()->pack_start (table);
6304         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
6305         dialog.add_button (_("Ok"), RESPONSE_ACCEPT);
6306         dialog.show_all ();
6307
6308         if (dialog.run () == RESPONSE_CANCEL) {
6309                 return;
6310         }
6311
6312         framepos_t crossfade_len = spin_crossfade.get_value();
6313         framepos_t pull_back_frames = spin_pullback.get_value();
6314
6315         crossfade_len = lrintf (crossfade_len * _session->frame_rate()/1000);
6316         pull_back_frames = lrintf (pull_back_frames * _session->frame_rate()/1000);
6317
6318         /* Iterate over the region list and make adjacent regions overlap by crossfade_len_ms */
6319
6320         _session->begin_reversible_command (_("close region gaps"));
6321
6322         int idx = 0;
6323         boost::shared_ptr<Region> last_region;
6324
6325         rs.sort_by_position_and_track();
6326
6327         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6328
6329                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
6330
6331                 if (!pl->frozen()) {
6332                         /* we haven't seen this playlist before */
6333
6334                         /* remember used playlists so we can thaw them later */
6335                         used_playlists.push_back(pl);
6336                         pl->freeze();
6337                 }
6338
6339                 framepos_t position = (*r)->region()->position();
6340
6341                 if (idx == 0 || position < last_region->position()){
6342                         last_region = (*r)->region();
6343                         idx++;
6344                         continue;
6345                 }
6346
6347                 (*r)->region()->trim_front( (position - pull_back_frames));
6348                 last_region->trim_end( (position - pull_back_frames + crossfade_len));
6349
6350                 last_region = (*r)->region();
6351
6352                 idx++;
6353         }
6354
6355         while (used_playlists.size() > 0) {
6356                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
6357                 (*i)->thaw();
6358                 used_playlists.pop_front();
6359         }
6360
6361         _session->commit_reversible_command ();
6362 }
6363
6364 void
6365 Editor::tab_to_transient (bool forward)
6366 {
6367         AnalysisFeatureList positions;
6368
6369         RegionSelection rs = get_regions_from_selection_and_entered ();
6370
6371         if (!_session) {
6372                 return;
6373         }
6374
6375         framepos_t pos = _session->audible_frame ();
6376
6377         if (!selection->tracks.empty()) {
6378
6379                 /* don't waste time searching for transients in duplicate playlists.
6380                  */
6381
6382                 TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6383
6384                 for (TrackViewList::iterator t = ts.begin(); t != ts.end(); ++t) {
6385
6386                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6387
6388                         if (rtv) {
6389                                 boost::shared_ptr<Track> tr = rtv->track();
6390                                 if (tr) {
6391                                         boost::shared_ptr<Playlist> pl = tr->playlist ();
6392                                         if (pl) {
6393                                                 framepos_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6394
6395                                                 if (result >= 0) {
6396                                                         positions.push_back (result);
6397                                                 }
6398                                         }
6399                                 }
6400                         }
6401                 }
6402
6403         } else {
6404
6405                 if (rs.empty()) {
6406                         return;
6407                 }
6408
6409                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6410                         (*r)->region()->get_transients (positions);
6411                 }
6412         }
6413
6414         TransientDetector::cleanup_transients (positions, _session->frame_rate(), 3.0);
6415
6416         if (forward) {
6417                 AnalysisFeatureList::iterator x;
6418
6419                 for (x = positions.begin(); x != positions.end(); ++x) {
6420                         if ((*x) > pos) {
6421                                 break;
6422                         }
6423                 }
6424
6425                 if (x != positions.end ()) {
6426                         _session->request_locate (*x);
6427                 }
6428
6429         } else {
6430                 AnalysisFeatureList::reverse_iterator x;
6431
6432                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6433                         if ((*x) < pos) {
6434                                 break;
6435                         }
6436                 }
6437
6438                 if (x != positions.rend ()) {
6439                         _session->request_locate (*x);
6440                 }
6441         }
6442 }
6443
6444 void
6445 Editor::playhead_forward_to_grid ()
6446 {
6447         if (!_session) {
6448                 return;
6449         }
6450
6451         framepos_t pos = playhead_cursor->current_frame ();
6452         if (pos < max_framepos - 1) {
6453                 pos += 2;
6454                 snap_to_internal (pos, 1, false);
6455                 _session->request_locate (pos);
6456         }
6457 }
6458
6459
6460 void
6461 Editor::playhead_backward_to_grid ()
6462 {
6463         if (!_session) {
6464                 return;
6465         }
6466
6467         framepos_t pos = playhead_cursor->current_frame ();
6468         if (pos > 2) {
6469                 pos -= 2;
6470                 snap_to_internal (pos, -1, false);
6471                 _session->request_locate (pos);
6472         }
6473 }
6474
6475 void
6476 Editor::set_track_height (Height h)
6477 {
6478         TrackSelection& ts (selection->tracks);
6479
6480         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6481                 (*x)->set_height_enum (h);
6482         }
6483 }
6484
6485 void
6486 Editor::toggle_tracks_active ()
6487 {
6488         TrackSelection& ts (selection->tracks);
6489         bool first = true;
6490         bool target = false;
6491
6492         if (ts.empty()) {
6493                 return;
6494         }
6495
6496         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6497                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6498
6499                 if (rtv) {
6500                         if (first) {
6501                                 target = !rtv->_route->active();
6502                                 first = false;
6503                         }
6504                         rtv->_route->set_active (target, this);
6505                 }
6506         }
6507 }
6508
6509 void
6510 Editor::remove_tracks ()
6511 {
6512         TrackSelection& ts (selection->tracks);
6513
6514         if (ts.empty()) {
6515                 return;
6516         }
6517
6518         vector<string> choices;
6519         string prompt;
6520         int ntracks = 0;
6521         int nbusses = 0;
6522         const char* trackstr;
6523         const char* busstr;
6524         vector<boost::shared_ptr<Route> > routes;
6525         bool special_bus = false;
6526
6527         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6528                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6529                 if (!rtv) {
6530                         continue;
6531                 }
6532                 if (rtv->is_track()) {
6533                         ntracks++;
6534                 } else {
6535                         nbusses++;
6536                 }
6537                 routes.push_back (rtv->_route);
6538
6539                 if (rtv->route()->is_master() || rtv->route()->is_monitor()) {
6540                         special_bus = true;
6541                 }
6542         }
6543
6544         if (special_bus && !Config->get_allow_special_bus_removal()) {
6545                 MessageDialog msg (_("That would be bad news ...."),
6546                                    false,
6547                                    Gtk::MESSAGE_INFO,
6548                                    Gtk::BUTTONS_OK);
6549                 msg.set_secondary_text (string_compose (_(
6550                                                                 "Removing the master or monitor bus is such a bad idea\n\
6551 that %1 is not going to allow it.\n\
6552 \n\
6553 If you really want to do this sort of thing\n\
6554 edit your ardour.rc file to set the\n\
6555 \"allow-special-bus-removal\" option to be \"yes\""), PROGRAM_NAME));
6556
6557                 msg.present ();
6558                 msg.run ();
6559                 return;
6560         }
6561
6562         if (ntracks + nbusses == 0) {
6563                 return;
6564         }
6565
6566         // XXX should be using gettext plural forms, maybe?
6567         if (ntracks > 1) {
6568                 trackstr = _("tracks");
6569         } else {
6570                 trackstr = _("track");
6571         }
6572
6573         if (nbusses > 1) {
6574                 busstr = _("busses");
6575         } else {
6576                 busstr = _("bus");
6577         }
6578
6579         if (ntracks) {
6580                 if (nbusses) {
6581                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6582                                                     "(You may also lose the playlists associated with the %2)\n\n"
6583                                                     "This action cannot be undone, and the session file will be overwritten!"),
6584                                                   ntracks, trackstr, nbusses, busstr);
6585                 } else {
6586                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6587                                                     "(You may also lose the playlists associated with the %2)\n\n"
6588                                                     "This action cannot be undone, and the session file will be overwritten!"),
6589                                                   ntracks, trackstr);
6590                 }
6591         } else if (nbusses) {
6592                 prompt  = string_compose (_("Do you really want to remove %1 %2?\n\n"
6593                                             "This action cannot be undone, and the session file will be overwritten"),
6594                                           nbusses, busstr);
6595         }
6596
6597         choices.push_back (_("No, do nothing."));
6598         if (ntracks + nbusses > 1) {
6599                 choices.push_back (_("Yes, remove them."));
6600         } else {
6601                 choices.push_back (_("Yes, remove it."));
6602         }
6603
6604         string title;
6605         if (ntracks) {
6606                 title = string_compose (_("Remove %1"), trackstr);
6607         } else {
6608                 title = string_compose (_("Remove %1"), busstr);
6609         }
6610
6611         Choice prompter (title, prompt, choices);
6612
6613         if (prompter.run () != 1) {
6614                 return;
6615         }
6616
6617         {
6618                 Session::StateProtector sp (_session);
6619                 DisplaySuspender ds;
6620                 for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6621                         _session->remove_route (*x);
6622                 }
6623         }
6624 }
6625
6626 void
6627 Editor::do_insert_time ()
6628 {
6629         if (selection->tracks.empty()) {
6630                 return;
6631         }
6632
6633         InsertTimeDialog d (*this);
6634         int response = d.run ();
6635
6636         if (response != RESPONSE_OK) {
6637                 return;
6638         }
6639
6640         if (d.distance() == 0) {
6641                 return;
6642         }
6643
6644         InsertTimeOption opt = d.intersected_region_action ();
6645
6646         insert_time (
6647                 get_preferred_edit_position(),
6648                 d.distance(),
6649                 opt,
6650                 d.all_playlists(),
6651                 d.move_glued(),
6652                 d.move_markers(),
6653                 d.move_glued_markers(),
6654                 d.move_locked_markers(),
6655                 d.move_tempos()
6656                 );
6657 }
6658
6659 void
6660 Editor::insert_time (
6661         framepos_t pos, framecnt_t frames, InsertTimeOption opt,
6662         bool all_playlists, bool ignore_music_glue, bool markers_too, bool glued_markers_too, bool locked_markers_too, bool tempo_too
6663         )
6664 {
6665         bool commit = false;
6666
6667         if (Config->get_edit_mode() == Lock) {
6668                 return;
6669         }
6670
6671         begin_reversible_command (_("insert time"));
6672
6673         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6674
6675         for (TrackViewList::iterator x = ts.begin(); x != ts.end(); ++x) {
6676
6677                 /* regions */
6678
6679                 /* don't operate on any playlist more than once, which could
6680                  * happen if "all playlists" is enabled, but there is more
6681                  * than 1 track using playlists "from" a given track.
6682                  */
6683
6684                 set<boost::shared_ptr<Playlist> > pl;
6685
6686                 if (all_playlists) {
6687                         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6688                         if (rtav) {
6689                                 vector<boost::shared_ptr<Playlist> > all = _session->playlists->playlists_for_track (rtav->track ());
6690                                 for (vector<boost::shared_ptr<Playlist> >::iterator p = all.begin(); p != all.end(); ++p) {
6691                                         pl.insert (*p);
6692                                 }
6693                         }
6694                 } else {
6695                         if ((*x)->playlist ()) {
6696                                 pl.insert ((*x)->playlist ());
6697                         }
6698                 }
6699
6700                 for (set<boost::shared_ptr<Playlist> >::iterator i = pl.begin(); i != pl.end(); ++i) {
6701
6702                         (*i)->clear_changes ();
6703                         (*i)->clear_owned_changes ();
6704
6705                         if (opt == SplitIntersected) {
6706                                 (*i)->split (pos);
6707                         }
6708
6709                         (*i)->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6710
6711                         vector<Command*> cmds;
6712                         (*i)->rdiff (cmds);
6713                         _session->add_commands (cmds);
6714
6715                         _session->add_command (new StatefulDiffCommand (*i));
6716                         commit = true;
6717                 }
6718
6719                 /* automation */
6720                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6721                 if (rtav) {
6722                         rtav->route ()->shift (pos, frames);
6723                         commit = true;
6724                 }
6725         }
6726
6727         /* markers */
6728         if (markers_too) {
6729                 bool moved = false;
6730                 XMLNode& before (_session->locations()->get_state());
6731                 Locations::LocationList copy (_session->locations()->list());
6732
6733                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6734
6735                         Locations::LocationList::const_iterator tmp;
6736
6737                         bool const was_locked = (*i)->locked ();
6738                         if (locked_markers_too) {
6739                                 (*i)->unlock ();
6740                         }
6741
6742                         if ((*i)->position_lock_style() == AudioTime || glued_markers_too) {
6743
6744                                 if ((*i)->start() >= pos) {
6745                                         (*i)->set_start ((*i)->start() + frames);
6746                                         if (!(*i)->is_mark()) {
6747                                                 (*i)->set_end ((*i)->end() + frames);
6748                                         }
6749                                         moved = true;
6750                                 }
6751
6752                         }
6753
6754                         if (was_locked) {
6755                                 (*i)->lock ();
6756                         }
6757                 }
6758
6759                 if (moved) {
6760                         XMLNode& after (_session->locations()->get_state());
6761                         _session->add_command (new MementoCommand<Locations>(*_session->locations(), &before, &after));
6762                 }
6763         }
6764
6765         if (tempo_too) {
6766                 _session->tempo_map().insert_time (pos, frames);
6767         }
6768
6769         if (commit) {
6770                 commit_reversible_command ();
6771         }
6772 }
6773
6774 void
6775 Editor::fit_selected_tracks ()
6776 {
6777         if (!selection->tracks.empty()) {
6778                 fit_tracks (selection->tracks);
6779         } else {
6780                 TrackViewList tvl;
6781
6782                 /* no selected tracks - use tracks with selected regions */
6783
6784                 if (!selection->regions.empty()) {
6785                         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
6786                                 tvl.push_back (&(*r)->get_time_axis_view ());
6787                         }
6788
6789                         if (!tvl.empty()) {
6790                                 fit_tracks (tvl);
6791                         }
6792                 } else if (internal_editing()) {
6793                         /* no selected tracks, or regions, but in internal edit mode, so follow the mouse and use
6794                            the entered track
6795                         */
6796                         if (entered_track) {
6797                                 tvl.push_back (entered_track);
6798                                 fit_tracks (tvl);
6799                         }
6800                 }
6801         }
6802
6803 }
6804
6805 void
6806 Editor::fit_tracks (TrackViewList & tracks)
6807 {
6808         if (tracks.empty()) {
6809                 return;
6810         }
6811
6812         uint32_t child_heights = 0;
6813         int visible_tracks = 0;
6814
6815         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6816
6817                 if (!(*t)->marked_for_display()) {
6818                         continue;
6819                 }
6820
6821                 child_heights += (*t)->effective_height() - (*t)->current_height();
6822                 ++visible_tracks;
6823         }
6824
6825         /* compute the per-track height from:
6826
6827            total canvas visible height -
6828                  height that will be taken by visible children of selected
6829                  tracks - height of the ruler/hscroll area
6830         */
6831         uint32_t h = (uint32_t) floor ((trackviews_height() - child_heights) / visible_tracks);
6832         double first_y_pos = DBL_MAX;
6833
6834         if (h < TimeAxisView::preset_height (HeightSmall)) {
6835                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6836                 /* too small to be displayed */
6837                 return;
6838         }
6839
6840         undo_visual_stack.push_back (current_visual_state (true));
6841         no_save_visual = true;
6842
6843         /* build a list of all tracks, including children */
6844
6845         TrackViewList all;
6846         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
6847                 all.push_back (*i);
6848                 TimeAxisView::Children c = (*i)->get_child_list ();
6849                 for (TimeAxisView::Children::iterator j = c.begin(); j != c.end(); ++j) {
6850                         all.push_back (j->get());
6851                 }
6852         }
6853
6854         bool prev_was_selected = false;
6855         bool is_selected = tracks.contains (all.front());
6856         bool next_is_selected;
6857
6858         for (TrackViewList::iterator t = all.begin(); t != all.end(); ++t) {
6859
6860                 TrackViewList::iterator next;
6861
6862                 next = t;
6863                 ++next;
6864
6865                 if (next != all.end()) {
6866                         next_is_selected = tracks.contains (*next);
6867                 } else {
6868                         next_is_selected = false;
6869                 }
6870
6871                 if ((*t)->marked_for_display ()) {
6872                         if (is_selected) {
6873                                 (*t)->set_height (h);
6874                                 first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6875                         } else {
6876                                 if (prev_was_selected && next_is_selected) {
6877                                         hide_track_in_display (*t);
6878                                 }
6879                         }
6880                 }
6881
6882                 prev_was_selected = is_selected;
6883                 is_selected = next_is_selected;
6884         }
6885
6886         /*
6887            set the controls_layout height now, because waiting for its size
6888            request signal handler will cause the vertical adjustment setting to fail
6889         */
6890
6891         controls_layout.property_height () = _full_canvas_height;
6892         vertical_adjustment.set_value (first_y_pos);
6893
6894         redo_visual_stack.push_back (current_visual_state (true));
6895
6896         visible_tracks_selector.set_text (_("Sel"));
6897 }
6898
6899 void
6900 Editor::save_visual_state (uint32_t n)
6901 {
6902         while (visual_states.size() <= n) {
6903                 visual_states.push_back (0);
6904         }
6905
6906         if (visual_states[n] != 0) {
6907                 delete visual_states[n];
6908         }
6909
6910         visual_states[n] = current_visual_state (true);
6911         gdk_beep ();
6912 }
6913
6914 void
6915 Editor::goto_visual_state (uint32_t n)
6916 {
6917         if (visual_states.size() <= n) {
6918                 return;
6919         }
6920
6921         if (visual_states[n] == 0) {
6922                 return;
6923         }
6924
6925         use_visual_state (*visual_states[n]);
6926 }
6927
6928 void
6929 Editor::start_visual_state_op (uint32_t n)
6930 {
6931         save_visual_state (n);
6932
6933         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6934         char buf[32];
6935         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6936         pup->set_text (buf);
6937         pup->touch();
6938 }
6939
6940 void
6941 Editor::cancel_visual_state_op (uint32_t n)
6942 {
6943         goto_visual_state (n);
6944 }
6945
6946 void
6947 Editor::toggle_region_mute ()
6948 {
6949         if (_ignore_region_action) {
6950                 return;
6951         }
6952
6953         RegionSelection rs = get_regions_from_selection_and_entered ();
6954
6955         if (rs.empty ()) {
6956                 return;
6957         }
6958
6959         if (rs.size() > 1) {
6960                 begin_reversible_command (_("mute regions"));
6961         } else {
6962                 begin_reversible_command (_("mute region"));
6963         }
6964
6965         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
6966
6967                 (*i)->region()->playlist()->clear_changes ();
6968                 (*i)->region()->set_muted (!(*i)->region()->muted ());
6969                 _session->add_command (new StatefulDiffCommand ((*i)->region()->playlist()));
6970
6971         }
6972
6973         commit_reversible_command ();
6974 }
6975
6976 void
6977 Editor::combine_regions ()
6978 {
6979         /* foreach track with selected regions, take all selected regions
6980            and join them into a new region containing the subregions (as a
6981            playlist)
6982         */
6983
6984         typedef set<RouteTimeAxisView*> RTVS;
6985         RTVS tracks;
6986
6987         if (selection->regions.empty()) {
6988                 return;
6989         }
6990
6991         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
6992                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
6993
6994                 if (rtv) {
6995                         tracks.insert (rtv);
6996                 }
6997         }
6998
6999         begin_reversible_command (_("combine regions"));
7000
7001         vector<RegionView*> new_selection;
7002
7003         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
7004                 RegionView* rv;
7005
7006                 if ((rv = (*i)->combine_regions ()) != 0) {
7007                         new_selection.push_back (rv);
7008                 }
7009         }
7010
7011         selection->clear_regions ();
7012         for (vector<RegionView*>::iterator i = new_selection.begin(); i != new_selection.end(); ++i) {
7013                 selection->add (*i);
7014         }
7015
7016         commit_reversible_command ();
7017 }
7018
7019 void
7020 Editor::uncombine_regions ()
7021 {
7022         typedef set<RouteTimeAxisView*> RTVS;
7023         RTVS tracks;
7024
7025         if (selection->regions.empty()) {
7026                 return;
7027         }
7028
7029         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
7030                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
7031
7032                 if (rtv) {
7033                         tracks.insert (rtv);
7034                 }
7035         }
7036
7037         begin_reversible_command (_("uncombine regions"));
7038
7039         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
7040                 (*i)->uncombine_regions ();
7041         }
7042
7043         commit_reversible_command ();
7044 }
7045
7046 void
7047 Editor::toggle_midi_input_active (bool flip_others)
7048 {
7049         bool onoff = false;
7050         boost::shared_ptr<RouteList> rl (new RouteList);
7051
7052         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
7053                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
7054
7055                 if (!rtav) {
7056                         continue;
7057                 }
7058
7059                 boost::shared_ptr<MidiTrack> mt = rtav->midi_track();
7060
7061                 if (mt) {
7062                         rl->push_back (rtav->route());
7063                         onoff = !mt->input_active();
7064                 }
7065         }
7066
7067         _session->set_exclusive_input_active (rl, onoff, flip_others);
7068 }
7069
7070 void
7071 Editor::lock ()
7072 {
7073         if (!lock_dialog) {
7074                 lock_dialog = new Gtk::Dialog (string_compose (_("%1: Locked"), PROGRAM_NAME), true);
7075
7076                 Gtk::Image* padlock = manage (new Gtk::Image (ARDOUR_UI_UTILS::get_icon ("padlock_closed")));
7077                 lock_dialog->get_vbox()->pack_start (*padlock);
7078
7079                 ArdourButton* b = manage (new ArdourButton);
7080                 b->set_name ("lock button");
7081                 b->set_text (_("Click to unlock"));
7082                 b->signal_clicked.connect (sigc::mem_fun (*this, &Editor::unlock));
7083                 lock_dialog->get_vbox()->pack_start (*b);
7084
7085                 lock_dialog->get_vbox()->show_all ();
7086                 lock_dialog->set_size_request (200, 200);
7087         }
7088
7089 #ifdef __APPLE__
7090         /* The global menu bar continues to be accessible to applications
7091            with modal dialogs, which means that we need to desensitize
7092            all items in the menu bar. Since those items are really just
7093            proxies for actions, that means disabling all actions.
7094         */
7095         ActionManager::disable_all_actions ();
7096 #endif
7097         lock_dialog->present ();
7098 }
7099
7100 void
7101 Editor::unlock ()
7102 {
7103         lock_dialog->hide ();
7104
7105 #ifdef __APPLE__
7106         ActionManager::pop_action_state ();
7107 #endif
7108
7109         if (ARDOUR_UI::config()->get_lock_gui_after_seconds()) {
7110                 start_lock_event_timing ();
7111         }
7112 }
7113
7114 void
7115 Editor::bring_in_callback (Gtk::Label* label, uint32_t n, uint32_t total, string name)
7116 {
7117         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&Editor::update_bring_in_message, this, label, n, total, name));
7118 }
7119
7120 void
7121 Editor::update_bring_in_message (Gtk::Label* label, uint32_t n, uint32_t total, string name)
7122 {
7123         label->set_text (string_compose ("Copying %1, %2 of %3", name, n, total));
7124         Gtkmm2ext::UI::instance()->flush_pending ();
7125 }
7126
7127 void
7128 Editor::bring_all_sources_into_session ()
7129 {
7130         if (!_session) {
7131                 return;
7132         }
7133
7134         Gtk::Label msg;
7135         ArdourDialog w (_("Moving embedded files into session folder"));
7136         w.get_vbox()->pack_start (msg);
7137         w.present ();
7138
7139         /* flush all pending GUI events because we're about to start copying
7140          * files
7141          */
7142
7143         Gtkmm2ext::UI::instance()->flush_pending ();
7144
7145         cerr << " Do it\n";
7146
7147         _session->bring_all_sources_into_session (boost::bind (&Editor::bring_in_callback, this, &msg, _1, _2, _3));
7148 }