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                 abort(); /*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 = dynamic_cast<MidiRegionView*>(*i);
4004                 if (mrv) {
4005                         mrv->cut_copy_clear (op);
4006                 }
4007         }
4008 }
4009
4010
4011
4012 struct lt_playlist {
4013     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4014             return a.playlist < b.playlist;
4015     }
4016 };
4017
4018 struct PlaylistMapping {
4019     TimeAxisView* tv;
4020     boost::shared_ptr<Playlist> pl;
4021
4022     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4023 };
4024
4025 /** Remove `clicked_regionview' */
4026 void
4027 Editor::remove_clicked_region ()
4028 {
4029         if (clicked_routeview == 0 || clicked_regionview == 0) {
4030                 return;
4031         }
4032
4033         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4034
4035         playlist->clear_changes ();
4036         playlist->clear_owned_changes ();
4037         playlist->remove_region (clicked_regionview->region());
4038         if (Config->get_edit_mode() == Ripple)
4039                 playlist->ripple (clicked_regionview->region()->position(), -clicked_regionview->region()->length(), boost::shared_ptr<Region>());
4040
4041         /* We might have removed regions, which alters other regions' layering_index,
4042            so we need to do a recursive diff here.
4043         */
4044         vector<Command*> cmds;
4045         playlist->rdiff (cmds);
4046         _session->add_commands (cmds);
4047
4048         _session->add_command(new StatefulDiffCommand (playlist));
4049         commit_reversible_command ();
4050 }
4051
4052
4053 /** Remove the selected regions */
4054 void
4055 Editor::remove_selected_regions ()
4056 {
4057         RegionSelection rs = get_regions_from_selection_and_entered ();
4058
4059         if (!_session || rs.empty()) {
4060                 return;
4061         }
4062
4063         begin_reversible_command (_("remove region"));
4064
4065         list<boost::shared_ptr<Region> > regions_to_remove;
4066
4067         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4068                 // we can't just remove the region(s) in this loop because
4069                 // this removes them from the RegionSelection, and they thus
4070                 // disappear from underneath the iterator, and the ++i above
4071                 // SEGVs in a puzzling fashion.
4072
4073                 // so, first iterate over the regions to be removed from rs and
4074                 // add them to the regions_to_remove list, and then
4075                 // iterate over the list to actually remove them.
4076
4077                 regions_to_remove.push_back ((*i)->region());
4078         }
4079
4080         vector<boost::shared_ptr<Playlist> > playlists;
4081
4082         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4083
4084                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4085
4086                 if (!playlist) {
4087                         // is this check necessary?
4088                         continue;
4089                 }
4090
4091                 /* get_regions_from_selection_and_entered() guarantees that
4092                    the playlists involved are unique, so there is no need
4093                    to check here.
4094                 */
4095
4096                 playlists.push_back (playlist);
4097
4098                 playlist->clear_changes ();
4099                 playlist->clear_owned_changes ();
4100                 playlist->freeze ();
4101                 playlist->remove_region (*rl);
4102                 if (Config->get_edit_mode() == Ripple)
4103                         playlist->ripple ((*rl)->position(), -(*rl)->length(), boost::shared_ptr<Region>());
4104
4105         }
4106
4107         vector<boost::shared_ptr<Playlist> >::iterator pl;
4108
4109         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4110                 (*pl)->thaw ();
4111
4112                 /* We might have removed regions, which alters other regions' layering_index,
4113                    so we need to do a recursive diff here.
4114                 */
4115                 vector<Command*> cmds;
4116                 (*pl)->rdiff (cmds);
4117                 _session->add_commands (cmds);
4118
4119                 _session->add_command(new StatefulDiffCommand (*pl));
4120         }
4121
4122         commit_reversible_command ();
4123 }
4124
4125 /** Cut, copy or clear selected regions.
4126  * @param op Operation (Cut, Copy or Clear)
4127  */
4128 void
4129 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4130 {
4131         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4132            a map when we want ordered access to both elements. i think.
4133         */
4134
4135         vector<PlaylistMapping> pmap;
4136
4137         framepos_t first_position = max_framepos;
4138
4139         typedef set<boost::shared_ptr<Playlist> > FreezeList;
4140         FreezeList freezelist;
4141
4142         /* get ordering correct before we cut/copy */
4143
4144         rs.sort_by_position_and_track ();
4145
4146         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4147
4148                 first_position = min ((framepos_t) (*x)->region()->position(), first_position);
4149
4150                 if (op == Cut || op == Clear || op == Delete) {
4151                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4152
4153                         if (pl) {
4154                                 FreezeList::iterator fl;
4155
4156                                 // only take state if this is a new playlist.
4157                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4158                                         if ((*fl) == pl) {
4159                                                 break;
4160                                         }
4161                                 }
4162
4163                                 if (fl == freezelist.end()) {
4164                                         pl->clear_changes();
4165                                         pl->clear_owned_changes ();
4166                                         pl->freeze ();
4167                                         freezelist.insert (pl);
4168                                 }
4169                         }
4170                 }
4171
4172                 TimeAxisView* tv = &(*x)->get_time_axis_view();
4173                 vector<PlaylistMapping>::iterator z;
4174
4175                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4176                         if ((*z).tv == tv) {
4177                                 break;
4178                         }
4179                 }
4180
4181                 if (z == pmap.end()) {
4182                         pmap.push_back (PlaylistMapping (tv));
4183                 }
4184         }
4185
4186         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4187
4188                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4189
4190                 if (!pl) {
4191                         /* region not yet associated with a playlist (e.g. unfinished
4192                            capture pass.
4193                         */
4194                         ++x;
4195                         continue;
4196                 }
4197
4198                 TimeAxisView& tv = (*x)->get_time_axis_view();
4199                 boost::shared_ptr<Playlist> npl;
4200                 RegionSelection::iterator tmp;
4201
4202                 tmp = x;
4203                 ++tmp;
4204
4205                 if (op != Delete) {
4206
4207                         vector<PlaylistMapping>::iterator z;
4208
4209                         for (z = pmap.begin(); z != pmap.end(); ++z) {
4210                                 if ((*z).tv == &tv) {
4211                                         break;
4212                                 }
4213                         }
4214
4215                         assert (z != pmap.end());
4216
4217                         if (!(*z).pl) {
4218                                 npl = PlaylistFactory::create (pl->data_type(), *_session, "cutlist", true);
4219                                 npl->freeze();
4220                                 (*z).pl = npl;
4221                         } else {
4222                                 npl = (*z).pl;
4223                         }
4224                 }
4225
4226                 boost::shared_ptr<Region> r = (*x)->region();
4227                 boost::shared_ptr<Region> _xx;
4228
4229                 assert (r != 0);
4230
4231                 switch (op) {
4232                 case Delete:
4233                         pl->remove_region (r);
4234                         if (Config->get_edit_mode() == Ripple)
4235                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4236                         break;
4237
4238                 case Cut:
4239                         _xx = RegionFactory::create (r);
4240                         npl->add_region (_xx, r->position() - first_position);
4241                         pl->remove_region (r);
4242                         if (Config->get_edit_mode() == Ripple)
4243                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4244                         break;
4245
4246                 case Copy:
4247                         /* copy region before adding, so we're not putting same object into two different playlists */
4248                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4249                         break;
4250
4251                 case Clear:
4252                         pl->remove_region (r);
4253                         if (Config->get_edit_mode() == Ripple)
4254                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4255                         break;
4256                 }
4257
4258                 x = tmp;
4259         }
4260
4261         if (op != Delete) {
4262
4263                 list<boost::shared_ptr<Playlist> > foo;
4264
4265                 /* the pmap is in the same order as the tracks in which selected regions occured */
4266
4267                 for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4268                         if ((*i).pl) {
4269                                 (*i).pl->thaw();
4270                                 foo.push_back ((*i).pl);
4271                         }
4272                 }
4273
4274                 if (!foo.empty()) {
4275                         cut_buffer->set (foo);
4276                 }
4277
4278                 if (pmap.empty()) {
4279                         _last_cut_copy_source_track = 0;
4280                 } else {
4281                         _last_cut_copy_source_track = pmap.front().tv;
4282                 }
4283         }
4284
4285         for (FreezeList::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4286                 (*pl)->thaw ();
4287
4288                 /* We might have removed regions, which alters other regions' layering_index,
4289                    so we need to do a recursive diff here.
4290                 */
4291                 vector<Command*> cmds;
4292                 (*pl)->rdiff (cmds);
4293                 _session->add_commands (cmds);
4294
4295                 _session->add_command (new StatefulDiffCommand (*pl));
4296         }
4297 }
4298
4299 void
4300 Editor::cut_copy_ranges (CutCopyOp op)
4301 {
4302         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4303
4304         /* Sort the track selection now, so that it if is used, the playlists
4305            selected by the calls below to cut_copy_clear are in the order that
4306            their tracks appear in the editor.  This makes things like paste
4307            of ranges work properly.
4308         */
4309
4310         sort_track_selection (ts);
4311
4312         if (ts.empty()) {
4313                 if (!entered_track) {
4314                         return;
4315                 }
4316                 ts.push_back (entered_track);
4317         }
4318
4319         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4320                 (*i)->cut_copy_clear (*selection, op);
4321         }
4322 }
4323
4324 void
4325 Editor::paste (float times, bool from_context)
4326 {
4327         DEBUG_TRACE (DEBUG::CutNPaste, "paste to preferred edit pos\n");
4328
4329         paste_internal (get_preferred_edit_position (false, from_context), times);
4330 }
4331
4332 void
4333 Editor::mouse_paste ()
4334 {
4335         framepos_t where;
4336         bool ignored;
4337
4338         if (!mouse_frame (where, ignored)) {
4339                 return;
4340         }
4341
4342         snap_to (where);
4343         paste_internal (where, 1);
4344 }
4345
4346 void
4347 Editor::paste_internal (framepos_t position, float times)
4348 {
4349         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("apparent paste position is %1\n", position));
4350
4351         if (internal_editing()) {
4352                 if (cut_buffer->midi_notes.empty()) {
4353                         return;
4354                 }
4355         } else {
4356                 if (cut_buffer->empty()) {
4357                         return;
4358                 }
4359         }
4360
4361         if (position == max_framepos) {
4362                 position = get_preferred_edit_position();
4363                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("preferred edit position is %1\n", position));
4364         }
4365
4366         TrackViewList ts;
4367         TrackViewList::iterator i;
4368         size_t nth;
4369
4370         /* get everything in the correct order */
4371
4372         if (_edit_point == Editing::EditAtMouse && entered_track) {
4373                 /* With the mouse edit point, paste onto the track under the mouse */
4374                 ts.push_back (entered_track);
4375         } else if (!selection->tracks.empty()) {
4376                 /* Otherwise, if there are some selected tracks, paste to them */
4377                 ts = selection->tracks.filter_to_unique_playlists ();
4378                 sort_track_selection (ts);
4379         } else if (_last_cut_copy_source_track) {
4380                 /* Otherwise paste to the track that the cut/copy came from;
4381                    see discussion in mantis #3333.
4382                 */
4383                 ts.push_back (_last_cut_copy_source_track);
4384         }
4385
4386         if (internal_editing ()) {
4387
4388                 /* undo/redo is handled by individual tracks/regions */
4389
4390                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4391
4392                         RegionSelection rs;
4393                         RegionSelection::iterator r;
4394                         MidiNoteSelection::iterator cb;
4395
4396                         get_regions_at (rs, position, ts);
4397
4398                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4399                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4400                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4401                                 if (mrv) {
4402                                         mrv->paste (position, times, **cb);
4403                                         ++cb;
4404                                 }
4405                         }
4406                 }
4407
4408         } else {
4409
4410                 /* we do redo (do you do voodoo?) */
4411
4412                 begin_reversible_command (Operations::paste);
4413
4414                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4415                         (*i)->paste (position, times, *cut_buffer, nth);
4416                 }
4417
4418                 commit_reversible_command ();
4419         }
4420 }
4421
4422 void
4423 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4424 {
4425         boost::shared_ptr<Playlist> playlist;
4426         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4427         RegionSelection foo;
4428
4429         framepos_t const start_frame = regions.start ();
4430         framepos_t const end_frame = regions.end_frame ();
4431
4432         begin_reversible_command (Operations::duplicate_region);
4433
4434         selection->clear_regions ();
4435
4436         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4437
4438                 boost::shared_ptr<Region> r ((*i)->region());
4439
4440                 TimeAxisView& tv = (*i)->get_time_axis_view();
4441                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4442                 latest_regionviews.clear ();
4443                 sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
4444
4445                 playlist = (*i)->region()->playlist();
4446                 playlist->clear_changes ();
4447                 playlist->duplicate (r, end_frame + (r->first_frame() - start_frame), times);
4448                 _session->add_command(new StatefulDiffCommand (playlist));
4449
4450                 c.disconnect ();
4451
4452                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4453         }
4454
4455         commit_reversible_command ();
4456
4457         if (!foo.empty()) {
4458                 selection->set (foo);
4459         }
4460 }
4461
4462 void
4463 Editor::duplicate_selection (float times)
4464 {
4465         if (selection->time.empty() || selection->tracks.empty()) {
4466                 return;
4467         }
4468
4469         boost::shared_ptr<Playlist> playlist;
4470         vector<boost::shared_ptr<Region> > new_regions;
4471         vector<boost::shared_ptr<Region> >::iterator ri;
4472
4473         create_region_from_selection (new_regions);
4474
4475         if (new_regions.empty()) {
4476                 return;
4477         }
4478
4479         begin_reversible_command (_("duplicate selection"));
4480
4481         ri = new_regions.begin();
4482
4483         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4484
4485         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4486                 if ((playlist = (*i)->playlist()) == 0) {
4487                         continue;
4488                 }
4489                 playlist->clear_changes ();
4490                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4491                 _session->add_command (new StatefulDiffCommand (playlist));
4492
4493                 ++ri;
4494                 if (ri == new_regions.end()) {
4495                         --ri;
4496                 }
4497         }
4498
4499         commit_reversible_command ();
4500 }
4501
4502 /** Reset all selected points to the relevant default value */
4503 void
4504 Editor::reset_point_selection ()
4505 {
4506         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4507                 ARDOUR::AutomationList::iterator j = (*i)->model ();
4508                 (*j)->value = (*i)->line().the_list()->default_value ();
4509         }
4510 }
4511
4512 void
4513 Editor::center_playhead ()
4514 {
4515         float const page = _visible_canvas_width * samples_per_pixel;
4516         center_screen_internal (playhead_cursor->current_frame (), page);
4517 }
4518
4519 void
4520 Editor::center_edit_point ()
4521 {
4522         float const page = _visible_canvas_width * samples_per_pixel;
4523         center_screen_internal (get_preferred_edit_position(), page);
4524 }
4525
4526 /** Caller must begin and commit a reversible command */
4527 void
4528 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4529 {
4530         playlist->clear_changes ();
4531         playlist->clear ();
4532         _session->add_command (new StatefulDiffCommand (playlist));
4533 }
4534
4535 void
4536 Editor::nudge_track (bool use_edit, bool forwards)
4537 {
4538         boost::shared_ptr<Playlist> playlist;
4539         framepos_t distance;
4540         framepos_t next_distance;
4541         framepos_t start;
4542
4543         if (use_edit) {
4544                 start = get_preferred_edit_position();
4545         } else {
4546                 start = 0;
4547         }
4548
4549         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4550                 return;
4551         }
4552
4553         if (selection->tracks.empty()) {
4554                 return;
4555         }
4556
4557         begin_reversible_command (_("nudge track"));
4558
4559         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4560
4561         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4562
4563                 if ((playlist = (*i)->playlist()) == 0) {
4564                         continue;
4565                 }
4566
4567                 playlist->clear_changes ();
4568                 playlist->clear_owned_changes ();
4569
4570                 playlist->nudge_after (start, distance, forwards);
4571
4572                 vector<Command*> cmds;
4573
4574                 playlist->rdiff (cmds);
4575                 _session->add_commands (cmds);
4576
4577                 _session->add_command (new StatefulDiffCommand (playlist));
4578         }
4579
4580         commit_reversible_command ();
4581 }
4582
4583 void
4584 Editor::remove_last_capture ()
4585 {
4586         vector<string> choices;
4587         string prompt;
4588
4589         if (!_session) {
4590                 return;
4591         }
4592
4593         if (Config->get_verify_remove_last_capture()) {
4594                 prompt  = _("Do you really want to destroy the last capture?"
4595                             "\n(This is destructive and cannot be undone)");
4596
4597                 choices.push_back (_("No, do nothing."));
4598                 choices.push_back (_("Yes, destroy it."));
4599
4600                 Gtkmm2ext::Choice prompter (_("Destroy last capture"), prompt, choices);
4601
4602                 if (prompter.run () == 1) {
4603                         _session->remove_last_capture ();
4604                         _regions->redisplay ();
4605                 }
4606
4607         } else {
4608                 _session->remove_last_capture();
4609                 _regions->redisplay ();
4610         }
4611 }
4612
4613 void
4614 Editor::normalize_region ()
4615 {
4616         if (!_session) {
4617                 return;
4618         }
4619
4620         RegionSelection rs = get_regions_from_selection_and_entered ();
4621
4622         if (rs.empty()) {
4623                 return;
4624         }
4625
4626         NormalizeDialog dialog (rs.size() > 1);
4627
4628         if (dialog.run () == RESPONSE_CANCEL) {
4629                 return;
4630         }
4631
4632         set_canvas_cursor (_cursors->wait);
4633         gdk_flush ();
4634
4635         /* XXX: should really only count audio regions here */
4636         int const regions = rs.size ();
4637
4638         /* Make a list of the selected audio regions' maximum amplitudes, and also
4639            obtain the maximum amplitude of them all.
4640         */
4641         list<double> max_amps;
4642         double max_amp = 0;
4643         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
4644                 AudioRegionView const * arv = dynamic_cast<AudioRegionView const *> (*i);
4645                 if (arv) {
4646                         dialog.descend (1.0 / regions);
4647                         double const a = arv->audio_region()->maximum_amplitude (&dialog);
4648
4649                         if (a == -1) {
4650                                 /* the user cancelled the operation */
4651                                 set_canvas_cursor (current_canvas_cursor);
4652                                 return;
4653                         }
4654
4655                         max_amps.push_back (a);
4656                         max_amp = max (max_amp, a);
4657                         dialog.ascend ();
4658                 }
4659         }
4660
4661         begin_reversible_command (_("normalize"));
4662
4663         list<double>::const_iterator a = max_amps.begin ();
4664
4665         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4666                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*r);
4667                 if (!arv) {
4668                         continue;
4669                 }
4670
4671                 arv->region()->clear_changes ();
4672
4673                 double const amp = dialog.normalize_individually() ? *a : max_amp;
4674
4675                 arv->audio_region()->normalize (amp, dialog.target ());
4676                 _session->add_command (new StatefulDiffCommand (arv->region()));
4677
4678                 ++a;
4679         }
4680
4681         commit_reversible_command ();
4682         set_canvas_cursor (current_canvas_cursor);
4683 }
4684
4685
4686 void
4687 Editor::reset_region_scale_amplitude ()
4688 {
4689         if (!_session) {
4690                 return;
4691         }
4692
4693         RegionSelection rs = get_regions_from_selection_and_entered ();
4694
4695         if (rs.empty()) {
4696                 return;
4697         }
4698
4699         begin_reversible_command ("reset gain");
4700
4701         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4702                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4703                 if (!arv)
4704                         continue;
4705                 arv->region()->clear_changes ();
4706                 arv->audio_region()->set_scale_amplitude (1.0f);
4707                 _session->add_command (new StatefulDiffCommand (arv->region()));
4708         }
4709
4710         commit_reversible_command ();
4711 }
4712
4713 void
4714 Editor::adjust_region_gain (bool up)
4715 {
4716         RegionSelection rs = get_regions_from_selection_and_entered ();
4717
4718         if (!_session || rs.empty()) {
4719                 return;
4720         }
4721
4722         begin_reversible_command ("adjust region gain");
4723
4724         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4725                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4726                 if (!arv) {
4727                         continue;
4728                 }
4729
4730                 arv->region()->clear_changes ();
4731
4732                 double dB = accurate_coefficient_to_dB (arv->audio_region()->scale_amplitude ());
4733
4734                 if (up) {
4735                         dB += 1;
4736                 } else {
4737                         dB -= 1;
4738                 }
4739
4740                 arv->audio_region()->set_scale_amplitude (dB_to_coefficient (dB));
4741                 _session->add_command (new StatefulDiffCommand (arv->region()));
4742         }
4743
4744         commit_reversible_command ();
4745 }
4746
4747
4748 void
4749 Editor::reverse_region ()
4750 {
4751         if (!_session) {
4752                 return;
4753         }
4754
4755         Reverse rev (*_session);
4756         apply_filter (rev, _("reverse regions"));
4757 }
4758
4759 void
4760 Editor::strip_region_silence ()
4761 {
4762         if (!_session) {
4763                 return;
4764         }
4765
4766         RegionSelection rs = get_regions_from_selection_and_entered ();
4767
4768         if (rs.empty()) {
4769                 return;
4770         }
4771
4772         std::list<RegionView*> audio_only;
4773
4774         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4775                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4776                 if (arv) {
4777                         audio_only.push_back (arv);
4778                 }
4779         }
4780
4781         StripSilenceDialog d (_session, audio_only);
4782         int const r = d.run ();
4783
4784         d.drop_rects ();
4785
4786         if (r == Gtk::RESPONSE_OK) {
4787                 ARDOUR::AudioIntervalMap silences;
4788                 d.silences (silences);
4789                 StripSilence s (*_session, silences, d.fade_length());
4790                 apply_filter (s, _("strip silence"), &d);
4791         }
4792 }
4793
4794 Command*
4795 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4796 {
4797         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4798         mrv.selection_as_notelist (selected, true);
4799
4800         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4801         v.push_back (selected);
4802
4803         framepos_t pos_frames = mrv.midi_region()->position() - mrv.midi_region()->start();
4804         double     pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
4805
4806         return op (mrv.midi_region()->model(), pos_beats, v);
4807 }
4808
4809 void
4810 Editor::apply_midi_note_edit_op (MidiOperator& op)
4811 {
4812         Command* cmd;
4813
4814         RegionSelection rs = get_regions_from_selection_and_entered ();
4815
4816         if (rs.empty()) {
4817                 return;
4818         }
4819
4820         begin_reversible_command (op.name ());
4821
4822         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4823                 RegionSelection::iterator tmp = r;
4824                 ++tmp;
4825
4826                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4827
4828                 if (mrv) {
4829                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4830                         if (cmd) {
4831                                 (*cmd)();
4832                                 _session->add_command (cmd);
4833                         }
4834                 }
4835
4836                 r = tmp;
4837         }
4838
4839         commit_reversible_command ();
4840 }
4841
4842 void
4843 Editor::fork_region ()
4844 {
4845         RegionSelection rs = get_regions_from_selection_and_entered ();
4846
4847         if (rs.empty()) {
4848                 return;
4849         }
4850
4851         begin_reversible_command (_("Fork Region(s)"));
4852
4853         set_canvas_cursor (_cursors->wait);
4854         gdk_flush ();
4855
4856         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4857                 RegionSelection::iterator tmp = r;
4858                 ++tmp;
4859
4860                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4861
4862                 if (mrv) {
4863                         try {
4864                                 boost::shared_ptr<Playlist> playlist = mrv->region()->playlist();
4865                                 boost::shared_ptr<MidiSource> new_source = _session->create_midi_source_by_stealing_name (mrv->midi_view()->track());
4866                                 boost::shared_ptr<MidiRegion> newregion = mrv->midi_region()->clone (new_source);
4867
4868                                 playlist->clear_changes ();
4869                                 playlist->replace_region (mrv->region(), newregion, mrv->region()->position());
4870                                 _session->add_command(new StatefulDiffCommand (playlist));
4871                         } catch (...) {
4872                                 error << string_compose (_("Could not unlink %1"), mrv->region()->name()) << endmsg;
4873                         }
4874                 }
4875
4876                 r = tmp;
4877         }
4878
4879         commit_reversible_command ();
4880
4881         set_canvas_cursor (current_canvas_cursor);
4882 }
4883
4884 void
4885 Editor::quantize_region ()
4886 {
4887         int selected_midi_region_cnt = 0;
4888
4889         if (!_session) {
4890                 return;
4891         }
4892
4893         RegionSelection rs = get_regions_from_selection_and_entered ();
4894
4895         if (rs.empty()) {
4896                 return;
4897         }
4898
4899         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4900                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4901                 if (mrv) {
4902                         selected_midi_region_cnt++;
4903                 }
4904         }
4905
4906         if (selected_midi_region_cnt == 0) {
4907                 return;
4908         }
4909
4910         QuantizeDialog* qd = new QuantizeDialog (*this);
4911
4912         qd->present ();
4913         const int r = qd->run ();
4914         qd->hide ();
4915
4916         if (r == Gtk::RESPONSE_OK) {
4917                 Quantize quant (*_session, qd->snap_start(), qd->snap_end(),
4918                                 qd->start_grid_size(), qd->end_grid_size(),
4919                                 qd->strength(), qd->swing(), qd->threshold());
4920
4921                 apply_midi_note_edit_op (quant);
4922         }
4923 }
4924
4925 void
4926 Editor::insert_patch_change (bool from_context)
4927 {
4928         RegionSelection rs = get_regions_from_selection_and_entered ();
4929
4930         if (rs.empty ()) {
4931                 return;
4932         }
4933
4934         const framepos_t p = get_preferred_edit_position (false, from_context);
4935
4936         /* XXX: bit of a hack; use the MIDNAM from the first selected region;
4937            there may be more than one, but the PatchChangeDialog can only offer
4938            one set of patch menus.
4939         */
4940         MidiRegionView* first = dynamic_cast<MidiRegionView*> (rs.front ());
4941
4942         Evoral::PatchChange<Evoral::MusicalTime> empty (0, 0, 0, 0);
4943         PatchChangeDialog d (0, _session, empty, first->instrument_info(), Gtk::Stock::ADD);
4944
4945         if (d.run() == RESPONSE_CANCEL) {
4946                 return;
4947         }
4948
4949         for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4950                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*i);
4951                 if (mrv) {
4952                         if (p >= mrv->region()->first_frame() && p <= mrv->region()->last_frame()) {
4953                                 mrv->add_patch_change (p - mrv->region()->position(), d.patch ());
4954                         }
4955                 }
4956         }
4957 }
4958
4959 void
4960 Editor::apply_filter (Filter& filter, string command, ProgressReporter* progress)
4961 {
4962         RegionSelection rs = get_regions_from_selection_and_entered ();
4963
4964         if (rs.empty()) {
4965                 return;
4966         }
4967
4968         begin_reversible_command (command);
4969
4970         set_canvas_cursor (_cursors->wait);
4971         gdk_flush ();
4972
4973         int n = 0;
4974         int const N = rs.size ();
4975
4976         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4977                 RegionSelection::iterator tmp = r;
4978                 ++tmp;
4979
4980                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4981                 if (arv) {
4982                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4983
4984                         if (progress) {
4985                                 progress->descend (1.0 / N);
4986                         }
4987
4988                         if (arv->audio_region()->apply (filter, progress) == 0) {
4989
4990                                 playlist->clear_changes ();
4991                                 playlist->clear_owned_changes ();
4992
4993                                 if (filter.results.empty ()) {
4994
4995                                         /* no regions returned; remove the old one */
4996                                         playlist->remove_region (arv->region ());
4997
4998                                 } else {
4999
5000                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
5001
5002                                         /* first region replaces the old one */
5003                                         playlist->replace_region (arv->region(), *res, (*res)->position());
5004                                         ++res;
5005
5006                                         /* add the rest */
5007                                         while (res != filter.results.end()) {
5008                                                 playlist->add_region (*res, (*res)->position());
5009                                                 ++res;
5010                                         }
5011
5012                                 }
5013
5014                                 /* We might have removed regions, which alters other regions' layering_index,
5015                                    so we need to do a recursive diff here.
5016                                 */
5017                                 vector<Command*> cmds;
5018                                 playlist->rdiff (cmds);
5019                                 _session->add_commands (cmds);
5020
5021                                 _session->add_command(new StatefulDiffCommand (playlist));
5022                         } else {
5023                                 goto out;
5024                         }
5025
5026                         if (progress) {
5027                                 progress->ascend ();
5028                         }
5029                 }
5030
5031                 r = tmp;
5032                 ++n;
5033         }
5034
5035         commit_reversible_command ();
5036
5037   out:
5038         set_canvas_cursor (current_canvas_cursor);
5039 }
5040
5041 void
5042 Editor::external_edit_region ()
5043 {
5044         /* more to come */
5045 }
5046
5047 void
5048 Editor::reset_region_gain_envelopes ()
5049 {
5050         RegionSelection rs = get_regions_from_selection_and_entered ();
5051
5052         if (!_session || rs.empty()) {
5053                 return;
5054         }
5055
5056         _session->begin_reversible_command (_("reset region gain"));
5057
5058         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5059                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5060                 if (arv) {
5061                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
5062                         XMLNode& before (alist->get_state());
5063
5064                         arv->audio_region()->set_default_envelope ();
5065                         _session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
5066                 }
5067         }
5068
5069         _session->commit_reversible_command ();
5070 }
5071
5072 void
5073 Editor::set_region_gain_visibility (RegionView* rv)
5074 {
5075         AudioRegionView* arv = dynamic_cast<AudioRegionView*> (rv);
5076         if (arv) {
5077                 arv->update_envelope_visibility();
5078         }
5079 }
5080
5081 void
5082 Editor::set_gain_envelope_visibility ()
5083 {
5084         if (!_session) {
5085                 return;
5086         }
5087
5088         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5089                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5090                 if (v) {
5091                         v->audio_view()->foreach_regionview (sigc::mem_fun (this, &Editor::set_region_gain_visibility));
5092                 }
5093         }
5094 }
5095
5096 void
5097 Editor::toggle_gain_envelope_active ()
5098 {
5099         if (_ignore_region_action) {
5100                 return;
5101         }
5102
5103         RegionSelection rs = get_regions_from_selection_and_entered ();
5104
5105         if (!_session || rs.empty()) {
5106                 return;
5107         }
5108
5109         _session->begin_reversible_command (_("region gain envelope active"));
5110
5111         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5112                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5113                 if (arv) {
5114                         arv->region()->clear_changes ();
5115                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5116                         _session->add_command (new StatefulDiffCommand (arv->region()));
5117                 }
5118         }
5119
5120         _session->commit_reversible_command ();
5121 }
5122
5123 void
5124 Editor::toggle_region_lock ()
5125 {
5126         if (_ignore_region_action) {
5127                 return;
5128         }
5129
5130         RegionSelection rs = get_regions_from_selection_and_entered ();
5131
5132         if (!_session || rs.empty()) {
5133                 return;
5134         }
5135
5136         _session->begin_reversible_command (_("toggle region lock"));
5137
5138         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5139                 (*i)->region()->clear_changes ();
5140                 (*i)->region()->set_locked (!(*i)->region()->locked());
5141                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5142         }
5143
5144         _session->commit_reversible_command ();
5145 }
5146
5147 void
5148 Editor::toggle_region_video_lock ()
5149 {
5150         if (_ignore_region_action) {
5151                 return;
5152         }
5153
5154         RegionSelection rs = get_regions_from_selection_and_entered ();
5155
5156         if (!_session || rs.empty()) {
5157                 return;
5158         }
5159
5160         _session->begin_reversible_command (_("Toggle Video Lock"));
5161
5162         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5163                 (*i)->region()->clear_changes ();
5164                 (*i)->region()->set_video_locked (!(*i)->region()->video_locked());
5165                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5166         }
5167
5168         _session->commit_reversible_command ();
5169 }
5170
5171 void
5172 Editor::toggle_region_lock_style ()
5173 {
5174         if (_ignore_region_action) {
5175                 return;
5176         }
5177
5178         RegionSelection rs = get_regions_from_selection_and_entered ();
5179
5180         if (!_session || rs.empty()) {
5181                 return;
5182         }
5183
5184         _session->begin_reversible_command (_("region lock style"));
5185
5186         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5187                 (*i)->region()->clear_changes ();
5188                 PositionLockStyle const ns = (*i)->region()->position_lock_style() == AudioTime ? MusicTime : AudioTime;
5189                 (*i)->region()->set_position_lock_style (ns);
5190                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5191         }
5192
5193         _session->commit_reversible_command ();
5194 }
5195
5196 void
5197 Editor::toggle_opaque_region ()
5198 {
5199         if (_ignore_region_action) {
5200                 return;
5201         }
5202
5203         RegionSelection rs = get_regions_from_selection_and_entered ();
5204
5205         if (!_session || rs.empty()) {
5206                 return;
5207         }
5208
5209         _session->begin_reversible_command (_("change region opacity"));
5210
5211         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5212                 (*i)->region()->clear_changes ();
5213                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5214                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5215         }
5216
5217         _session->commit_reversible_command ();
5218 }
5219
5220 void
5221 Editor::toggle_record_enable ()
5222 {
5223         bool new_state = false;
5224         bool first = true;
5225         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5226                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5227                 if (!rtav)
5228                         continue;
5229                 if (!rtav->is_track())
5230                         continue;
5231
5232                 if (first) {
5233                         new_state = !rtav->track()->record_enabled();
5234                         first = false;
5235                 }
5236
5237                 rtav->track()->set_record_enabled (new_state, this);
5238         }
5239 }
5240
5241 void
5242 Editor::toggle_solo ()
5243 {
5244         bool new_state = false;
5245         bool first = true;
5246         boost::shared_ptr<RouteList> rl (new RouteList);
5247
5248         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5249                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5250
5251                 if (!rtav) {
5252                         continue;
5253                 }
5254
5255                 if (first) {
5256                         new_state = !rtav->route()->soloed ();
5257                         first = false;
5258                 }
5259
5260                 rl->push_back (rtav->route());
5261         }
5262
5263         _session->set_solo (rl, new_state, Session::rt_cleanup, true);
5264 }
5265
5266 void
5267 Editor::toggle_mute ()
5268 {
5269         bool new_state = false;
5270         bool first = true;
5271         boost::shared_ptr<RouteList> rl (new RouteList);
5272
5273         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5274                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5275
5276                 if (!rtav) {
5277                         continue;
5278                 }
5279
5280                 if (first) {
5281                         new_state = !rtav->route()->muted();
5282                         first = false;
5283                 }
5284
5285                 rl->push_back (rtav->route());
5286         }
5287
5288         _session->set_mute (rl, new_state, Session::rt_cleanup, true);
5289 }
5290
5291 void
5292 Editor::toggle_solo_isolate ()
5293 {
5294 }
5295
5296
5297 void
5298 Editor::fade_range ()
5299 {
5300         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
5301
5302         begin_reversible_command (_("fade range"));
5303
5304         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
5305                 (*i)->fade_range (selection->time);
5306         }
5307
5308         commit_reversible_command ();
5309 }
5310
5311
5312 void
5313 Editor::set_fade_length (bool in)
5314 {
5315         RegionSelection rs = get_regions_from_selection_and_entered ();
5316
5317         if (rs.empty()) {
5318                 return;
5319         }
5320
5321         /* we need a region to measure the offset from the start */
5322
5323         RegionView* rv = rs.front ();
5324
5325         framepos_t pos = get_preferred_edit_position();
5326         framepos_t len;
5327         char const * cmd;
5328
5329         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5330                 /* edit point is outside the relevant region */
5331                 return;
5332         }
5333
5334         if (in) {
5335                 if (pos <= rv->region()->position()) {
5336                         /* can't do it */
5337                         return;
5338                 }
5339                 len = pos - rv->region()->position();
5340                 cmd = _("set fade in length");
5341         } else {
5342                 if (pos >= rv->region()->last_frame()) {
5343                         /* can't do it */
5344                         return;
5345                 }
5346                 len = rv->region()->last_frame() - pos;
5347                 cmd = _("set fade out length");
5348         }
5349
5350         begin_reversible_command (cmd);
5351
5352         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5353                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5354
5355                 if (!tmp) {
5356                         return;
5357                 }
5358
5359                 boost::shared_ptr<AutomationList> alist;
5360                 if (in) {
5361                         alist = tmp->audio_region()->fade_in();
5362                 } else {
5363                         alist = tmp->audio_region()->fade_out();
5364                 }
5365
5366                 XMLNode &before = alist->get_state();
5367
5368                 if (in) {
5369                         tmp->audio_region()->set_fade_in_length (len);
5370                         tmp->audio_region()->set_fade_in_active (true);
5371                 } else {
5372                         tmp->audio_region()->set_fade_out_length (len);
5373                         tmp->audio_region()->set_fade_out_active (true);
5374                 }
5375
5376                 XMLNode &after = alist->get_state();
5377                 _session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5378         }
5379
5380         commit_reversible_command ();
5381 }
5382
5383 void
5384 Editor::set_fade_in_shape (FadeShape shape)
5385 {
5386         RegionSelection rs = get_regions_from_selection_and_entered ();
5387
5388         if (rs.empty()) {
5389                 return;
5390         }
5391
5392         begin_reversible_command (_("set fade in shape"));
5393
5394         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5395                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5396
5397                 if (!tmp) {
5398                         return;
5399                 }
5400
5401                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5402                 XMLNode &before = alist->get_state();
5403
5404                 tmp->audio_region()->set_fade_in_shape (shape);
5405
5406                 XMLNode &after = alist->get_state();
5407                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5408         }
5409
5410         commit_reversible_command ();
5411
5412 }
5413
5414 void
5415 Editor::set_fade_out_shape (FadeShape shape)
5416 {
5417         RegionSelection rs = get_regions_from_selection_and_entered ();
5418
5419         if (rs.empty()) {
5420                 return;
5421         }
5422
5423         begin_reversible_command (_("set fade out shape"));
5424
5425         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5426                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5427
5428                 if (!tmp) {
5429                         return;
5430                 }
5431
5432                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5433                 XMLNode &before = alist->get_state();
5434
5435                 tmp->audio_region()->set_fade_out_shape (shape);
5436
5437                 XMLNode &after = alist->get_state();
5438                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5439         }
5440
5441         commit_reversible_command ();
5442 }
5443
5444 void
5445 Editor::set_fade_in_active (bool yn)
5446 {
5447         RegionSelection rs = get_regions_from_selection_and_entered ();
5448
5449         if (rs.empty()) {
5450                 return;
5451         }
5452
5453         begin_reversible_command (_("set fade in active"));
5454
5455         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5456                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5457
5458                 if (!tmp) {
5459                         return;
5460                 }
5461
5462
5463                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5464
5465                 ar->clear_changes ();
5466                 ar->set_fade_in_active (yn);
5467                 _session->add_command (new StatefulDiffCommand (ar));
5468         }
5469
5470         commit_reversible_command ();
5471 }
5472
5473 void
5474 Editor::set_fade_out_active (bool yn)
5475 {
5476         RegionSelection rs = get_regions_from_selection_and_entered ();
5477
5478         if (rs.empty()) {
5479                 return;
5480         }
5481
5482         begin_reversible_command (_("set fade out active"));
5483
5484         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5485                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5486
5487                 if (!tmp) {
5488                         return;
5489                 }
5490
5491                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5492
5493                 ar->clear_changes ();
5494                 ar->set_fade_out_active (yn);
5495                 _session->add_command(new StatefulDiffCommand (ar));
5496         }
5497
5498         commit_reversible_command ();
5499 }
5500
5501 void
5502 Editor::toggle_region_fades (int dir)
5503 {
5504         if (_ignore_region_action) {
5505                 return;
5506         }
5507
5508         boost::shared_ptr<AudioRegion> ar;
5509         bool yn = false;
5510
5511         RegionSelection rs = get_regions_from_selection_and_entered ();
5512
5513         if (rs.empty()) {
5514                 return;
5515         }
5516
5517         RegionSelection::iterator i;
5518         for (i = rs.begin(); i != rs.end(); ++i) {
5519                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5520                         if (dir == -1) {
5521                                 yn = ar->fade_out_active ();
5522                         } else {
5523                                 yn = ar->fade_in_active ();
5524                         }
5525                         break;
5526                 }
5527         }
5528
5529         if (i == rs.end()) {
5530                 return;
5531         }
5532
5533         /* XXX should this undo-able? */
5534
5535         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5536                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5537                         continue;
5538                 }
5539                 if (dir == 1 || dir == 0) {
5540                         ar->set_fade_in_active (!yn);
5541                 }
5542
5543                 if (dir == -1 || dir == 0) {
5544                         ar->set_fade_out_active (!yn);
5545                 }
5546         }
5547 }
5548
5549
5550 /** Update region fade visibility after its configuration has been changed */
5551 void
5552 Editor::update_region_fade_visibility ()
5553 {
5554         bool _fade_visibility = _session->config.get_show_region_fades ();
5555
5556         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5557                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5558                 if (v) {
5559                         if (_fade_visibility) {
5560                                 v->audio_view()->show_all_fades ();
5561                         } else {
5562                                 v->audio_view()->hide_all_fades ();
5563                         }
5564                 }
5565         }
5566 }
5567
5568 void
5569 Editor::set_edit_point ()
5570 {
5571         framepos_t where;
5572         bool ignored;
5573
5574         if (!mouse_frame (where, ignored)) {
5575                 return;
5576         }
5577
5578         snap_to (where);
5579
5580         if (selection->markers.empty()) {
5581
5582                 mouse_add_new_marker (where);
5583
5584         } else {
5585                 bool ignored;
5586
5587                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5588
5589                 if (loc) {
5590                         loc->move_to (where);
5591                 }
5592         }
5593 }
5594
5595 void
5596 Editor::set_playhead_cursor ()
5597 {
5598         if (entered_marker) {
5599                 _session->request_locate (entered_marker->position(), _session->transport_rolling());
5600         } else {
5601                 framepos_t where;
5602                 bool ignored;
5603
5604                 if (!mouse_frame (where, ignored)) {
5605                         return;
5606                 }
5607
5608                 snap_to (where);
5609
5610                 if (_session) {
5611                         _session->request_locate (where, _session->transport_rolling());
5612                 }
5613         }
5614
5615         if ( Config->get_follow_edits() )
5616                 cancel_time_selection();
5617 }
5618
5619 void
5620 Editor::split_region ()
5621 {
5622         if ( !selection->time.empty()) {
5623                 separate_regions_between (selection->time);
5624                 return;
5625         }
5626
5627         RegionSelection rs = get_regions_from_selection_and_edit_point ();
5628
5629         framepos_t where = get_preferred_edit_position ();
5630
5631         if (rs.empty()) {
5632                 return;
5633         }
5634
5635         split_regions_at (where, rs);
5636 }
5637
5638 struct EditorOrderRouteSorter {
5639     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5640             return a->order_key () < b->order_key ();
5641     }
5642 };
5643
5644 void
5645 Editor::select_next_route()
5646 {
5647         if (selection->tracks.empty()) {
5648                 selection->set (track_views.front());
5649                 return;
5650         }
5651
5652         TimeAxisView* current = selection->tracks.front();
5653
5654         RouteUI *rui;
5655         do {
5656                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5657                         if (*i == current) {
5658                                 ++i;
5659                                 if (i != track_views.end()) {
5660                                         current = (*i);
5661                                 } else {
5662                                         current = (*(track_views.begin()));
5663                                         //selection->set (*(track_views.begin()));
5664                                 }
5665                                 break;
5666                         }
5667                 }
5668                 rui = dynamic_cast<RouteUI *>(current);
5669         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5670
5671         selection->set(current);
5672
5673         ensure_time_axis_view_is_visible (*current, false);
5674 }
5675
5676 void
5677 Editor::select_prev_route()
5678 {
5679         if (selection->tracks.empty()) {
5680                 selection->set (track_views.front());
5681                 return;
5682         }
5683
5684         TimeAxisView* current = selection->tracks.front();
5685
5686         RouteUI *rui;
5687         do {
5688                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5689                         if (*i == current) {
5690                                 ++i;
5691                                 if (i != track_views.rend()) {
5692                                         current = (*i);
5693                                 } else {
5694                                         current = *(track_views.rbegin());
5695                                 }
5696                                 break;
5697                         }
5698                 }
5699                 rui = dynamic_cast<RouteUI *>(current);
5700         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5701
5702         selection->set (current);
5703
5704         ensure_time_axis_view_is_visible (*current, false);
5705 }
5706
5707 void
5708 Editor::set_loop_from_selection (bool play)
5709 {
5710         if (_session == 0 || selection->time.empty()) {
5711                 return;
5712         }
5713
5714         framepos_t start = selection->time[clicked_selection].start;
5715         framepos_t end = selection->time[clicked_selection].end;
5716
5717         set_loop_range (start, end,  _("set loop range from selection"));
5718
5719         if (play) {
5720                 _session->request_locate (start, true);
5721                 _session->request_play_loop (true);
5722         }
5723 }
5724
5725 void
5726 Editor::set_loop_from_edit_range (bool play)
5727 {
5728         if (_session == 0) {
5729                 return;
5730         }
5731
5732         framepos_t start;
5733         framepos_t end;
5734
5735         if (!get_edit_op_range (start, end)) {
5736                 return;
5737         }
5738
5739         set_loop_range (start, end,  _("set loop range from edit range"));
5740
5741         if (play) {
5742                 _session->request_locate (start, true);
5743                 _session->request_play_loop (true);
5744         }
5745 }
5746
5747 void
5748 Editor::set_loop_from_region (bool play)
5749 {
5750         framepos_t start = max_framepos;
5751         framepos_t end = 0;
5752
5753         RegionSelection rs = get_regions_from_selection_and_entered ();
5754
5755         if (rs.empty()) {
5756                 return;
5757         }
5758
5759         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5760                 if ((*i)->region()->position() < start) {
5761                         start = (*i)->region()->position();
5762                 }
5763                 if ((*i)->region()->last_frame() + 1 > end) {
5764                         end = (*i)->region()->last_frame() + 1;
5765                 }
5766         }
5767
5768         set_loop_range (start, end, _("set loop range from region"));
5769
5770         if (play) {
5771                 _session->request_locate (start, true);
5772                 _session->request_play_loop (true);
5773         }
5774 }
5775
5776 void
5777 Editor::set_punch_from_selection ()
5778 {
5779         if (_session == 0 || selection->time.empty()) {
5780                 return;
5781         }
5782
5783         framepos_t start = selection->time[clicked_selection].start;
5784         framepos_t end = selection->time[clicked_selection].end;
5785
5786         set_punch_range (start, end,  _("set punch range from selection"));
5787 }
5788
5789 void
5790 Editor::set_punch_from_edit_range ()
5791 {
5792         if (_session == 0) {
5793                 return;
5794         }
5795
5796         framepos_t start;
5797         framepos_t end;
5798
5799         if (!get_edit_op_range (start, end)) {
5800                 return;
5801         }
5802
5803         set_punch_range (start, end,  _("set punch range from edit range"));
5804 }
5805
5806 void
5807 Editor::set_punch_from_region ()
5808 {
5809         framepos_t start = max_framepos;
5810         framepos_t end = 0;
5811
5812         RegionSelection rs = get_regions_from_selection_and_entered ();
5813
5814         if (rs.empty()) {
5815                 return;
5816         }
5817
5818         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5819                 if ((*i)->region()->position() < start) {
5820                         start = (*i)->region()->position();
5821                 }
5822                 if ((*i)->region()->last_frame() + 1 > end) {
5823                         end = (*i)->region()->last_frame() + 1;
5824                 }
5825         }
5826
5827         set_punch_range (start, end, _("set punch range from region"));
5828 }
5829
5830 void
5831 Editor::pitch_shift_region ()
5832 {
5833         RegionSelection rs = get_regions_from_selection_and_entered ();
5834
5835         RegionSelection audio_rs;
5836         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5837                 if (dynamic_cast<AudioRegionView*> (*i)) {
5838                         audio_rs.push_back (*i);
5839                 }
5840         }
5841
5842         if (audio_rs.empty()) {
5843                 return;
5844         }
5845
5846         pitch_shift (audio_rs, 1.2);
5847 }
5848
5849 void
5850 Editor::transpose_region ()
5851 {
5852         RegionSelection rs = get_regions_from_selection_and_entered ();
5853
5854         list<MidiRegionView*> midi_region_views;
5855         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5856                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
5857                 if (mrv) {
5858                         midi_region_views.push_back (mrv);
5859                 }
5860         }
5861
5862         TransposeDialog d;
5863         int const r = d.run ();
5864         if (r != RESPONSE_ACCEPT) {
5865                 return;
5866         }
5867
5868         for (list<MidiRegionView*>::iterator i = midi_region_views.begin(); i != midi_region_views.end(); ++i) {
5869                 (*i)->midi_region()->transpose (d.semitones ());
5870         }
5871 }
5872
5873 void
5874 Editor::set_tempo_from_region ()
5875 {
5876         RegionSelection rs = get_regions_from_selection_and_entered ();
5877
5878         if (!_session || rs.empty()) {
5879                 return;
5880         }
5881
5882         RegionView* rv = rs.front();
5883
5884         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5885 }
5886
5887 void
5888 Editor::use_range_as_bar ()
5889 {
5890         framepos_t start, end;
5891         if (get_edit_op_range (start, end)) {
5892                 define_one_bar (start, end);
5893         }
5894 }
5895
5896 void
5897 Editor::define_one_bar (framepos_t start, framepos_t end)
5898 {
5899         framepos_t length = end - start;
5900
5901         const Meter& m (_session->tempo_map().meter_at (start));
5902
5903         /* length = 1 bar */
5904
5905         /* now we want frames per beat.
5906            we have frames per bar, and beats per bar, so ...
5907         */
5908
5909         /* XXXX METER MATH */
5910
5911         double frames_per_beat = length / m.divisions_per_bar();
5912
5913         /* beats per minute = */
5914
5915         double beats_per_minute = (_session->frame_rate() * 60.0) / frames_per_beat;
5916
5917         /* now decide whether to:
5918
5919             (a) set global tempo
5920             (b) add a new tempo marker
5921
5922         */
5923
5924         const TempoSection& t (_session->tempo_map().tempo_section_at (start));
5925
5926         bool do_global = false;
5927
5928         if ((_session->tempo_map().n_tempos() == 1) && (_session->tempo_map().n_meters() == 1)) {
5929
5930                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5931                    at the start, or create a new marker
5932                 */
5933
5934                 vector<string> options;
5935                 options.push_back (_("Cancel"));
5936                 options.push_back (_("Add new marker"));
5937                 options.push_back (_("Set global tempo"));
5938
5939                 Choice c (
5940                         _("Define one bar"),
5941                         _("Do you want to set the global tempo or add a new tempo marker?"),
5942                         options
5943                         );
5944
5945                 c.set_default_response (2);
5946
5947                 switch (c.run()) {
5948                 case 0:
5949                         return;
5950
5951                 case 2:
5952                         do_global = true;
5953                         break;
5954
5955                 default:
5956                         do_global = false;
5957                 }
5958
5959         } else {
5960
5961                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5962                    if the marker is at the region starter, change it, otherwise add
5963                    a new tempo marker
5964                 */
5965         }
5966
5967         begin_reversible_command (_("set tempo from region"));
5968         XMLNode& before (_session->tempo_map().get_state());
5969
5970         if (do_global) {
5971                 _session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5972         } else if (t.frame() == start) {
5973                 _session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5974         } else {
5975                 Timecode::BBT_Time bbt;
5976                 _session->tempo_map().bbt_time (start, bbt);
5977                 _session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), bbt);
5978         }
5979
5980         XMLNode& after (_session->tempo_map().get_state());
5981
5982         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
5983         commit_reversible_command ();
5984 }
5985
5986 void
5987 Editor::split_region_at_transients ()
5988 {
5989         AnalysisFeatureList positions;
5990
5991         RegionSelection rs = get_regions_from_selection_and_entered ();
5992
5993         if (!_session || rs.empty()) {
5994                 return;
5995         }
5996
5997         _session->begin_reversible_command (_("split regions"));
5998
5999         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
6000
6001                 RegionSelection::iterator tmp;
6002
6003                 tmp = i;
6004                 ++tmp;
6005
6006                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
6007
6008                 if (ar && (ar->get_transients (positions) == 0)) {
6009                         split_region_at_points ((*i)->region(), positions, true);
6010                         positions.clear ();
6011                 }
6012
6013                 i = tmp;
6014         }
6015
6016         _session->commit_reversible_command ();
6017
6018 }
6019
6020 void
6021 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret, bool select_new)
6022 {
6023         bool use_rhythmic_rodent = false;
6024
6025         boost::shared_ptr<Playlist> pl = r->playlist();
6026
6027         list<boost::shared_ptr<Region> > new_regions;
6028
6029         if (!pl) {
6030                 return;
6031         }
6032
6033         if (positions.empty()) {
6034                 return;
6035         }
6036
6037
6038         if (positions.size() > 20 && can_ferret) {
6039                 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);
6040                 MessageDialog msg (msgstr,
6041                                    false,
6042                                    Gtk::MESSAGE_INFO,
6043                                    Gtk::BUTTONS_OK_CANCEL);
6044
6045                 if (can_ferret) {
6046                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
6047                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
6048                 } else {
6049                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
6050                 }
6051
6052                 msg.set_title (_("Excessive split?"));
6053                 msg.present ();
6054
6055                 int response = msg.run();
6056                 msg.hide ();
6057
6058                 switch (response) {
6059                 case RESPONSE_OK:
6060                         break;
6061                 case RESPONSE_APPLY:
6062                         use_rhythmic_rodent = true;
6063                         break;
6064                 default:
6065                         return;
6066                 }
6067         }
6068
6069         if (use_rhythmic_rodent) {
6070                 show_rhythm_ferret ();
6071                 return;
6072         }
6073
6074         AnalysisFeatureList::const_iterator x;
6075
6076         pl->clear_changes ();
6077         pl->clear_owned_changes ();
6078
6079         x = positions.begin();
6080
6081         if (x == positions.end()) {
6082                 return;
6083         }
6084
6085         pl->freeze ();
6086         pl->remove_region (r);
6087
6088         framepos_t pos = 0;
6089
6090         while (x != positions.end()) {
6091
6092                 /* deal with positons that are out of scope of present region bounds */
6093                 if (*x <= 0 || *x > r->length()) {
6094                         ++x;
6095                         continue;
6096                 }
6097
6098                 /* file start = original start + how far we from the initial position ?
6099                  */
6100
6101                 framepos_t file_start = r->start() + pos;
6102
6103                 /* length = next position - current position
6104                  */
6105
6106                 framepos_t len = (*x) - pos;
6107
6108                 /* XXX we do we really want to allow even single-sample regions?
6109                    shouldn't we have some kind of lower limit on region size?
6110                 */
6111
6112                 if (len <= 0) {
6113                         break;
6114                 }
6115
6116                 string new_name;
6117
6118                 if (RegionFactory::region_name (new_name, r->name())) {
6119                         break;
6120                 }
6121
6122                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6123
6124                 PropertyList plist;
6125
6126                 plist.add (ARDOUR::Properties::start, file_start);
6127                 plist.add (ARDOUR::Properties::length, len);
6128                 plist.add (ARDOUR::Properties::name, new_name);
6129                 plist.add (ARDOUR::Properties::layer, 0);
6130
6131                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
6132                 /* because we set annouce to false, manually add the new region to the
6133                    RegionFactory map
6134                 */
6135                 RegionFactory::map_add (nr);
6136
6137                 pl->add_region (nr, r->position() + pos);
6138
6139                 if (select_new) {
6140                         new_regions.push_front(nr);
6141                 }
6142
6143                 pos += len;
6144                 ++x;
6145         }
6146
6147         string new_name;
6148
6149         RegionFactory::region_name (new_name, r->name());
6150
6151         /* Add the final region */
6152         PropertyList plist;
6153
6154         plist.add (ARDOUR::Properties::start, r->start() + pos);
6155         plist.add (ARDOUR::Properties::length, r->last_frame() - (r->position() + pos) + 1);
6156         plist.add (ARDOUR::Properties::name, new_name);
6157         plist.add (ARDOUR::Properties::layer, 0);
6158
6159         boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
6160         /* because we set annouce to false, manually add the new region to the
6161            RegionFactory map
6162         */
6163         RegionFactory::map_add (nr);
6164         pl->add_region (nr, r->position() + pos);
6165
6166         if (select_new) {
6167                 new_regions.push_front(nr);
6168         }
6169
6170         pl->thaw ();
6171
6172         /* We might have removed regions, which alters other regions' layering_index,
6173            so we need to do a recursive diff here.
6174         */
6175         vector<Command*> cmds;
6176         pl->rdiff (cmds);
6177         _session->add_commands (cmds);
6178
6179         _session->add_command (new StatefulDiffCommand (pl));
6180
6181         if (select_new) {
6182
6183                 for (list<boost::shared_ptr<Region> >::iterator i = new_regions.begin(); i != new_regions.end(); ++i){
6184                         set_selected_regionview_from_region_list ((*i), Selection::Add);
6185                 }
6186         }
6187 }
6188
6189 void
6190 Editor::place_transient()
6191 {
6192         if (!_session) {
6193                 return;
6194         }
6195
6196         RegionSelection rs = get_regions_from_selection_and_edit_point ();
6197
6198         if (rs.empty()) {
6199                 return;
6200         }
6201
6202         framepos_t where = get_preferred_edit_position();
6203
6204         _session->begin_reversible_command (_("place transient"));
6205
6206         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6207                 framepos_t position = (*r)->region()->position();
6208                 (*r)->region()->add_transient(where - position);
6209         }
6210
6211         _session->commit_reversible_command ();
6212 }
6213
6214 void
6215 Editor::remove_transient(ArdourCanvas::Item* item)
6216 {
6217         if (!_session) {
6218                 return;
6219         }
6220
6221         ArdourCanvas::Line* _line = reinterpret_cast<ArdourCanvas::Line*> (item);
6222         assert (_line);
6223
6224         AudioRegionView* _arv = reinterpret_cast<AudioRegionView*> (item->get_data ("regionview"));
6225         _arv->remove_transient (*(float*) _line->get_data ("position"));
6226 }
6227
6228 void
6229 Editor::snap_regions_to_grid ()
6230 {
6231         list <boost::shared_ptr<Playlist > > used_playlists;
6232
6233         RegionSelection rs = get_regions_from_selection_and_entered ();
6234
6235         if (!_session || rs.empty()) {
6236                 return;
6237         }
6238
6239         _session->begin_reversible_command (_("snap regions to grid"));
6240
6241         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6242
6243                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
6244
6245                 if (!pl->frozen()) {
6246                         /* we haven't seen this playlist before */
6247
6248                         /* remember used playlists so we can thaw them later */
6249                         used_playlists.push_back(pl);
6250                         pl->freeze();
6251                 }
6252
6253                 framepos_t start_frame = (*r)->region()->first_frame ();
6254                 snap_to (start_frame);
6255                 (*r)->region()->set_position (start_frame);
6256         }
6257
6258         while (used_playlists.size() > 0) {
6259                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
6260                 (*i)->thaw();
6261                 used_playlists.pop_front();
6262         }
6263
6264         _session->commit_reversible_command ();
6265 }
6266
6267 void
6268 Editor::close_region_gaps ()
6269 {
6270         list <boost::shared_ptr<Playlist > > used_playlists;
6271
6272         RegionSelection rs = get_regions_from_selection_and_entered ();
6273
6274         if (!_session || rs.empty()) {
6275                 return;
6276         }
6277
6278         Dialog dialog (_("Close Region Gaps"));
6279
6280         Table table (2, 3);
6281         table.set_spacings (12);
6282         table.set_border_width (12);
6283         Label* l = manage (left_aligned_label (_("Crossfade length")));
6284         table.attach (*l, 0, 1, 0, 1);
6285
6286         SpinButton spin_crossfade (1, 0);
6287         spin_crossfade.set_range (0, 15);
6288         spin_crossfade.set_increments (1, 1);
6289         spin_crossfade.set_value (5);
6290         table.attach (spin_crossfade, 1, 2, 0, 1);
6291
6292         table.attach (*manage (new Label (_("ms"))), 2, 3, 0, 1);
6293
6294         l = manage (left_aligned_label (_("Pull-back length")));
6295         table.attach (*l, 0, 1, 1, 2);
6296
6297         SpinButton spin_pullback (1, 0);
6298         spin_pullback.set_range (0, 100);
6299         spin_pullback.set_increments (1, 1);
6300         spin_pullback.set_value(30);
6301         table.attach (spin_pullback, 1, 2, 1, 2);
6302
6303         table.attach (*manage (new Label (_("ms"))), 2, 3, 1, 2);
6304
6305         dialog.get_vbox()->pack_start (table);
6306         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
6307         dialog.add_button (_("Ok"), RESPONSE_ACCEPT);
6308         dialog.show_all ();
6309
6310         if (dialog.run () == RESPONSE_CANCEL) {
6311                 return;
6312         }
6313
6314         framepos_t crossfade_len = spin_crossfade.get_value();
6315         framepos_t pull_back_frames = spin_pullback.get_value();
6316
6317         crossfade_len = lrintf (crossfade_len * _session->frame_rate()/1000);
6318         pull_back_frames = lrintf (pull_back_frames * _session->frame_rate()/1000);
6319
6320         /* Iterate over the region list and make adjacent regions overlap by crossfade_len_ms */
6321
6322         _session->begin_reversible_command (_("close region gaps"));
6323
6324         int idx = 0;
6325         boost::shared_ptr<Region> last_region;
6326
6327         rs.sort_by_position_and_track();
6328
6329         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6330
6331                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
6332
6333                 if (!pl->frozen()) {
6334                         /* we haven't seen this playlist before */
6335
6336                         /* remember used playlists so we can thaw them later */
6337                         used_playlists.push_back(pl);
6338                         pl->freeze();
6339                 }
6340
6341                 framepos_t position = (*r)->region()->position();
6342
6343                 if (idx == 0 || position < last_region->position()){
6344                         last_region = (*r)->region();
6345                         idx++;
6346                         continue;
6347                 }
6348
6349                 (*r)->region()->trim_front( (position - pull_back_frames));
6350                 last_region->trim_end( (position - pull_back_frames + crossfade_len));
6351
6352                 last_region = (*r)->region();
6353
6354                 idx++;
6355         }
6356
6357         while (used_playlists.size() > 0) {
6358                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
6359                 (*i)->thaw();
6360                 used_playlists.pop_front();
6361         }
6362
6363         _session->commit_reversible_command ();
6364 }
6365
6366 void
6367 Editor::tab_to_transient (bool forward)
6368 {
6369         AnalysisFeatureList positions;
6370
6371         RegionSelection rs = get_regions_from_selection_and_entered ();
6372
6373         if (!_session) {
6374                 return;
6375         }
6376
6377         framepos_t pos = _session->audible_frame ();
6378
6379         if (!selection->tracks.empty()) {
6380
6381                 /* don't waste time searching for transients in duplicate playlists.
6382                  */
6383
6384                 TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6385
6386                 for (TrackViewList::iterator t = ts.begin(); t != ts.end(); ++t) {
6387
6388                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6389
6390                         if (rtv) {
6391                                 boost::shared_ptr<Track> tr = rtv->track();
6392                                 if (tr) {
6393                                         boost::shared_ptr<Playlist> pl = tr->playlist ();
6394                                         if (pl) {
6395                                                 framepos_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6396
6397                                                 if (result >= 0) {
6398                                                         positions.push_back (result);
6399                                                 }
6400                                         }
6401                                 }
6402                         }
6403                 }
6404
6405         } else {
6406
6407                 if (rs.empty()) {
6408                         return;
6409                 }
6410
6411                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6412                         (*r)->region()->get_transients (positions);
6413                 }
6414         }
6415
6416         TransientDetector::cleanup_transients (positions, _session->frame_rate(), 3.0);
6417
6418         if (forward) {
6419                 AnalysisFeatureList::iterator x;
6420
6421                 for (x = positions.begin(); x != positions.end(); ++x) {
6422                         if ((*x) > pos) {
6423                                 break;
6424                         }
6425                 }
6426
6427                 if (x != positions.end ()) {
6428                         _session->request_locate (*x);
6429                 }
6430
6431         } else {
6432                 AnalysisFeatureList::reverse_iterator x;
6433
6434                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6435                         if ((*x) < pos) {
6436                                 break;
6437                         }
6438                 }
6439
6440                 if (x != positions.rend ()) {
6441                         _session->request_locate (*x);
6442                 }
6443         }
6444 }
6445
6446 void
6447 Editor::playhead_forward_to_grid ()
6448 {
6449         if (!_session) {
6450                 return;
6451         }
6452
6453         framepos_t pos = playhead_cursor->current_frame ();
6454         if (pos < max_framepos - 1) {
6455                 pos += 2;
6456                 snap_to_internal (pos, 1, false);
6457                 _session->request_locate (pos);
6458         }
6459 }
6460
6461
6462 void
6463 Editor::playhead_backward_to_grid ()
6464 {
6465         if (!_session) {
6466                 return;
6467         }
6468
6469         framepos_t pos = playhead_cursor->current_frame ();
6470         if (pos > 2) {
6471                 pos -= 2;
6472                 snap_to_internal (pos, -1, false);
6473                 _session->request_locate (pos);
6474         }
6475 }
6476
6477 void
6478 Editor::set_track_height (Height h)
6479 {
6480         TrackSelection& ts (selection->tracks);
6481
6482         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6483                 (*x)->set_height_enum (h);
6484         }
6485 }
6486
6487 void
6488 Editor::toggle_tracks_active ()
6489 {
6490         TrackSelection& ts (selection->tracks);
6491         bool first = true;
6492         bool target = false;
6493
6494         if (ts.empty()) {
6495                 return;
6496         }
6497
6498         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6499                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6500
6501                 if (rtv) {
6502                         if (first) {
6503                                 target = !rtv->_route->active();
6504                                 first = false;
6505                         }
6506                         rtv->_route->set_active (target, this);
6507                 }
6508         }
6509 }
6510
6511 void
6512 Editor::remove_tracks ()
6513 {
6514         TrackSelection& ts (selection->tracks);
6515
6516         if (ts.empty()) {
6517                 return;
6518         }
6519
6520         vector<string> choices;
6521         string prompt;
6522         int ntracks = 0;
6523         int nbusses = 0;
6524         const char* trackstr;
6525         const char* busstr;
6526         vector<boost::shared_ptr<Route> > routes;
6527         bool special_bus = false;
6528
6529         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6530                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6531                 if (!rtv) {
6532                         continue;
6533                 }
6534                 if (rtv->is_track()) {
6535                         ntracks++;
6536                 } else {
6537                         nbusses++;
6538                 }
6539                 routes.push_back (rtv->_route);
6540
6541                 if (rtv->route()->is_master() || rtv->route()->is_monitor()) {
6542                         special_bus = true;
6543                 }
6544         }
6545
6546         if (special_bus && !Config->get_allow_special_bus_removal()) {
6547                 MessageDialog msg (_("That would be bad news ...."),
6548                                    false,
6549                                    Gtk::MESSAGE_INFO,
6550                                    Gtk::BUTTONS_OK);
6551                 msg.set_secondary_text (string_compose (_(
6552                                                                 "Removing the master or monitor bus is such a bad idea\n\
6553 that %1 is not going to allow it.\n\
6554 \n\
6555 If you really want to do this sort of thing\n\
6556 edit your ardour.rc file to set the\n\
6557 \"allow-special-bus-removal\" option to be \"yes\""), PROGRAM_NAME));
6558
6559                 msg.present ();
6560                 msg.run ();
6561                 return;
6562         }
6563
6564         if (ntracks + nbusses == 0) {
6565                 return;
6566         }
6567
6568         // XXX should be using gettext plural forms, maybe?
6569         if (ntracks > 1) {
6570                 trackstr = _("tracks");
6571         } else {
6572                 trackstr = _("track");
6573         }
6574
6575         if (nbusses > 1) {
6576                 busstr = _("busses");
6577         } else {
6578                 busstr = _("bus");
6579         }
6580
6581         if (ntracks) {
6582                 if (nbusses) {
6583                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6584                                                     "(You may also lose the playlists associated with the %2)\n\n"
6585                                                     "This action cannot be undone, and the session file will be overwritten!"),
6586                                                   ntracks, trackstr, nbusses, busstr);
6587                 } else {
6588                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6589                                                     "(You may also lose the playlists associated with the %2)\n\n"
6590                                                     "This action cannot be undone, and the session file will be overwritten!"),
6591                                                   ntracks, trackstr);
6592                 }
6593         } else if (nbusses) {
6594                 prompt  = string_compose (_("Do you really want to remove %1 %2?\n\n"
6595                                             "This action cannot be undone, and the session file will be overwritten"),
6596                                           nbusses, busstr);
6597         }
6598
6599         choices.push_back (_("No, do nothing."));
6600         if (ntracks + nbusses > 1) {
6601                 choices.push_back (_("Yes, remove them."));
6602         } else {
6603                 choices.push_back (_("Yes, remove it."));
6604         }
6605
6606         string title;
6607         if (ntracks) {
6608                 title = string_compose (_("Remove %1"), trackstr);
6609         } else {
6610                 title = string_compose (_("Remove %1"), busstr);
6611         }
6612
6613         Choice prompter (title, prompt, choices);
6614
6615         if (prompter.run () != 1) {
6616                 return;
6617         }
6618
6619         {
6620                 Session::StateProtector sp (_session);
6621                 DisplaySuspender ds;
6622                 for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6623                         _session->remove_route (*x);
6624                 }
6625         }
6626 }
6627
6628 void
6629 Editor::do_insert_time ()
6630 {
6631         if (selection->tracks.empty()) {
6632                 return;
6633         }
6634
6635         InsertTimeDialog d (*this);
6636         int response = d.run ();
6637
6638         if (response != RESPONSE_OK) {
6639                 return;
6640         }
6641
6642         if (d.distance() == 0) {
6643                 return;
6644         }
6645
6646         InsertTimeOption opt = d.intersected_region_action ();
6647
6648         insert_time (
6649                 get_preferred_edit_position(),
6650                 d.distance(),
6651                 opt,
6652                 d.all_playlists(),
6653                 d.move_glued(),
6654                 d.move_markers(),
6655                 d.move_glued_markers(),
6656                 d.move_locked_markers(),
6657                 d.move_tempos()
6658                 );
6659 }
6660
6661 void
6662 Editor::insert_time (
6663         framepos_t pos, framecnt_t frames, InsertTimeOption opt,
6664         bool all_playlists, bool ignore_music_glue, bool markers_too, bool glued_markers_too, bool locked_markers_too, bool tempo_too
6665         )
6666 {
6667         bool commit = false;
6668
6669         if (Config->get_edit_mode() == Lock) {
6670                 return;
6671         }
6672
6673         begin_reversible_command (_("insert time"));
6674
6675         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6676
6677         for (TrackViewList::iterator x = ts.begin(); x != ts.end(); ++x) {
6678
6679                 /* regions */
6680
6681                 /* don't operate on any playlist more than once, which could
6682                  * happen if "all playlists" is enabled, but there is more
6683                  * than 1 track using playlists "from" a given track.
6684                  */
6685
6686                 set<boost::shared_ptr<Playlist> > pl;
6687
6688                 if (all_playlists) {
6689                         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6690                         if (rtav) {
6691                                 vector<boost::shared_ptr<Playlist> > all = _session->playlists->playlists_for_track (rtav->track ());
6692                                 for (vector<boost::shared_ptr<Playlist> >::iterator p = all.begin(); p != all.end(); ++p) {
6693                                         pl.insert (*p);
6694                                 }
6695                         }
6696                 } else {
6697                         if ((*x)->playlist ()) {
6698                                 pl.insert ((*x)->playlist ());
6699                         }
6700                 }
6701
6702                 for (set<boost::shared_ptr<Playlist> >::iterator i = pl.begin(); i != pl.end(); ++i) {
6703
6704                         (*i)->clear_changes ();
6705                         (*i)->clear_owned_changes ();
6706
6707                         if (opt == SplitIntersected) {
6708                                 (*i)->split (pos);
6709                         }
6710
6711                         (*i)->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6712
6713                         vector<Command*> cmds;
6714                         (*i)->rdiff (cmds);
6715                         _session->add_commands (cmds);
6716
6717                         _session->add_command (new StatefulDiffCommand (*i));
6718                         commit = true;
6719                 }
6720
6721                 /* automation */
6722                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6723                 if (rtav) {
6724                         rtav->route ()->shift (pos, frames);
6725                         commit = true;
6726                 }
6727         }
6728
6729         /* markers */
6730         if (markers_too) {
6731                 bool moved = false;
6732                 XMLNode& before (_session->locations()->get_state());
6733                 Locations::LocationList copy (_session->locations()->list());
6734
6735                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6736
6737                         Locations::LocationList::const_iterator tmp;
6738
6739                         bool const was_locked = (*i)->locked ();
6740                         if (locked_markers_too) {
6741                                 (*i)->unlock ();
6742                         }
6743
6744                         if ((*i)->position_lock_style() == AudioTime || glued_markers_too) {
6745
6746                                 if ((*i)->start() >= pos) {
6747                                         (*i)->set_start ((*i)->start() + frames);
6748                                         if (!(*i)->is_mark()) {
6749                                                 (*i)->set_end ((*i)->end() + frames);
6750                                         }
6751                                         moved = true;
6752                                 }
6753
6754                         }
6755
6756                         if (was_locked) {
6757                                 (*i)->lock ();
6758                         }
6759                 }
6760
6761                 if (moved) {
6762                         XMLNode& after (_session->locations()->get_state());
6763                         _session->add_command (new MementoCommand<Locations>(*_session->locations(), &before, &after));
6764                 }
6765         }
6766
6767         if (tempo_too) {
6768                 _session->tempo_map().insert_time (pos, frames);
6769         }
6770
6771         if (commit) {
6772                 commit_reversible_command ();
6773         }
6774 }
6775
6776 void
6777 Editor::fit_selected_tracks ()
6778 {
6779         if (!selection->tracks.empty()) {
6780                 fit_tracks (selection->tracks);
6781         } else {
6782                 TrackViewList tvl;
6783
6784                 /* no selected tracks - use tracks with selected regions */
6785
6786                 if (!selection->regions.empty()) {
6787                         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
6788                                 tvl.push_back (&(*r)->get_time_axis_view ());
6789                         }
6790
6791                         if (!tvl.empty()) {
6792                                 fit_tracks (tvl);
6793                         }
6794                 } else if (internal_editing()) {
6795                         /* no selected tracks, or regions, but in internal edit mode, so follow the mouse and use
6796                            the entered track
6797                         */
6798                         if (entered_track) {
6799                                 tvl.push_back (entered_track);
6800                                 fit_tracks (tvl);
6801                         }
6802                 }
6803         }
6804
6805 }
6806
6807 void
6808 Editor::fit_tracks (TrackViewList & tracks)
6809 {
6810         if (tracks.empty()) {
6811                 return;
6812         }
6813
6814         uint32_t child_heights = 0;
6815         int visible_tracks = 0;
6816
6817         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6818
6819                 if (!(*t)->marked_for_display()) {
6820                         continue;
6821                 }
6822
6823                 child_heights += (*t)->effective_height() - (*t)->current_height();
6824                 ++visible_tracks;
6825         }
6826
6827         /* compute the per-track height from:
6828
6829            total canvas visible height -
6830                  height that will be taken by visible children of selected
6831                  tracks - height of the ruler/hscroll area
6832         */
6833         uint32_t h = (uint32_t) floor ((trackviews_height() - child_heights) / visible_tracks);
6834         double first_y_pos = DBL_MAX;
6835
6836         if (h < TimeAxisView::preset_height (HeightSmall)) {
6837                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6838                 /* too small to be displayed */
6839                 return;
6840         }
6841
6842         undo_visual_stack.push_back (current_visual_state (true));
6843         no_save_visual = true;
6844
6845         /* build a list of all tracks, including children */
6846
6847         TrackViewList all;
6848         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
6849                 all.push_back (*i);
6850                 TimeAxisView::Children c = (*i)->get_child_list ();
6851                 for (TimeAxisView::Children::iterator j = c.begin(); j != c.end(); ++j) {
6852                         all.push_back (j->get());
6853                 }
6854         }
6855
6856         bool prev_was_selected = false;
6857         bool is_selected = tracks.contains (all.front());
6858         bool next_is_selected;
6859
6860         for (TrackViewList::iterator t = all.begin(); t != all.end(); ++t) {
6861
6862                 TrackViewList::iterator next;
6863
6864                 next = t;
6865                 ++next;
6866
6867                 if (next != all.end()) {
6868                         next_is_selected = tracks.contains (*next);
6869                 } else {
6870                         next_is_selected = false;
6871                 }
6872
6873                 if ((*t)->marked_for_display ()) {
6874                         if (is_selected) {
6875                                 (*t)->set_height (h);
6876                                 first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6877                         } else {
6878                                 if (prev_was_selected && next_is_selected) {
6879                                         hide_track_in_display (*t);
6880                                 }
6881                         }
6882                 }
6883
6884                 prev_was_selected = is_selected;
6885                 is_selected = next_is_selected;
6886         }
6887
6888         /*
6889            set the controls_layout height now, because waiting for its size
6890            request signal handler will cause the vertical adjustment setting to fail
6891         */
6892
6893         controls_layout.property_height () = _full_canvas_height;
6894         vertical_adjustment.set_value (first_y_pos);
6895
6896         redo_visual_stack.push_back (current_visual_state (true));
6897
6898         visible_tracks_selector.set_text (_("Sel"));
6899 }
6900
6901 void
6902 Editor::save_visual_state (uint32_t n)
6903 {
6904         while (visual_states.size() <= n) {
6905                 visual_states.push_back (0);
6906         }
6907
6908         if (visual_states[n] != 0) {
6909                 delete visual_states[n];
6910         }
6911
6912         visual_states[n] = current_visual_state (true);
6913         gdk_beep ();
6914 }
6915
6916 void
6917 Editor::goto_visual_state (uint32_t n)
6918 {
6919         if (visual_states.size() <= n) {
6920                 return;
6921         }
6922
6923         if (visual_states[n] == 0) {
6924                 return;
6925         }
6926
6927         use_visual_state (*visual_states[n]);
6928 }
6929
6930 void
6931 Editor::start_visual_state_op (uint32_t n)
6932 {
6933         save_visual_state (n);
6934
6935         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6936         char buf[32];
6937         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6938         pup->set_text (buf);
6939         pup->touch();
6940 }
6941
6942 void
6943 Editor::cancel_visual_state_op (uint32_t n)
6944 {
6945         goto_visual_state (n);
6946 }
6947
6948 void
6949 Editor::toggle_region_mute ()
6950 {
6951         if (_ignore_region_action) {
6952                 return;
6953         }
6954
6955         RegionSelection rs = get_regions_from_selection_and_entered ();
6956
6957         if (rs.empty ()) {
6958                 return;
6959         }
6960
6961         if (rs.size() > 1) {
6962                 begin_reversible_command (_("mute regions"));
6963         } else {
6964                 begin_reversible_command (_("mute region"));
6965         }
6966
6967         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
6968
6969                 (*i)->region()->playlist()->clear_changes ();
6970                 (*i)->region()->set_muted (!(*i)->region()->muted ());
6971                 _session->add_command (new StatefulDiffCommand ((*i)->region()->playlist()));
6972
6973         }
6974
6975         commit_reversible_command ();
6976 }
6977
6978 void
6979 Editor::combine_regions ()
6980 {
6981         /* foreach track with selected regions, take all selected regions
6982            and join them into a new region containing the subregions (as a
6983            playlist)
6984         */
6985
6986         typedef set<RouteTimeAxisView*> RTVS;
6987         RTVS tracks;
6988
6989         if (selection->regions.empty()) {
6990                 return;
6991         }
6992
6993         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
6994                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
6995
6996                 if (rtv) {
6997                         tracks.insert (rtv);
6998                 }
6999         }
7000
7001         begin_reversible_command (_("combine regions"));
7002
7003         vector<RegionView*> new_selection;
7004
7005         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
7006                 RegionView* rv;
7007
7008                 if ((rv = (*i)->combine_regions ()) != 0) {
7009                         new_selection.push_back (rv);
7010                 }
7011         }
7012
7013         selection->clear_regions ();
7014         for (vector<RegionView*>::iterator i = new_selection.begin(); i != new_selection.end(); ++i) {
7015                 selection->add (*i);
7016         }
7017
7018         commit_reversible_command ();
7019 }
7020
7021 void
7022 Editor::uncombine_regions ()
7023 {
7024         typedef set<RouteTimeAxisView*> RTVS;
7025         RTVS tracks;
7026
7027         if (selection->regions.empty()) {
7028                 return;
7029         }
7030
7031         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
7032                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
7033
7034                 if (rtv) {
7035                         tracks.insert (rtv);
7036                 }
7037         }
7038
7039         begin_reversible_command (_("uncombine regions"));
7040
7041         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
7042                 (*i)->uncombine_regions ();
7043         }
7044
7045         commit_reversible_command ();
7046 }
7047
7048 void
7049 Editor::toggle_midi_input_active (bool flip_others)
7050 {
7051         bool onoff = false;
7052         boost::shared_ptr<RouteList> rl (new RouteList);
7053
7054         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
7055                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
7056
7057                 if (!rtav) {
7058                         continue;
7059                 }
7060
7061                 boost::shared_ptr<MidiTrack> mt = rtav->midi_track();
7062
7063                 if (mt) {
7064                         rl->push_back (rtav->route());
7065                         onoff = !mt->input_active();
7066                 }
7067         }
7068
7069         _session->set_exclusive_input_active (rl, onoff, flip_others);
7070 }
7071
7072 void
7073 Editor::lock ()
7074 {
7075         if (!lock_dialog) {
7076                 lock_dialog = new Gtk::Dialog (string_compose (_("%1: Locked"), PROGRAM_NAME), true);
7077
7078                 Gtk::Image* padlock = manage (new Gtk::Image (ARDOUR_UI_UTILS::get_icon ("padlock_closed")));
7079                 lock_dialog->get_vbox()->pack_start (*padlock);
7080
7081                 ArdourButton* b = manage (new ArdourButton);
7082                 b->set_name ("lock button");
7083                 b->set_text (_("Click to unlock"));
7084                 b->signal_clicked.connect (sigc::mem_fun (*this, &Editor::unlock));
7085                 lock_dialog->get_vbox()->pack_start (*b);
7086
7087                 lock_dialog->get_vbox()->show_all ();
7088                 lock_dialog->set_size_request (200, 200);
7089         }
7090
7091 #ifdef __APPLE__
7092         /* The global menu bar continues to be accessible to applications
7093            with modal dialogs, which means that we need to desensitize
7094            all items in the menu bar. Since those items are really just
7095            proxies for actions, that means disabling all actions.
7096         */
7097         ActionManager::disable_all_actions ();
7098 #endif
7099         lock_dialog->present ();
7100 }
7101
7102 void
7103 Editor::unlock ()
7104 {
7105         lock_dialog->hide ();
7106
7107 #ifdef __APPLE__
7108         ActionManager::pop_action_state ();
7109 #endif
7110
7111         if (ARDOUR_UI::config()->get_lock_gui_after_seconds()) {
7112                 start_lock_event_timing ();
7113         }
7114 }
7115
7116 void
7117 Editor::bring_in_callback (Gtk::Label* label, uint32_t n, uint32_t total, string name)
7118 {
7119         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&Editor::update_bring_in_message, this, label, n, total, name));
7120 }
7121
7122 void
7123 Editor::update_bring_in_message (Gtk::Label* label, uint32_t n, uint32_t total, string name)
7124 {
7125         label->set_text (string_compose ("Copying %1, %2 of %3", name, n, total));
7126         Gtkmm2ext::UI::instance()->flush_pending ();
7127 }
7128
7129 void
7130 Editor::bring_all_sources_into_session ()
7131 {
7132         if (!_session) {
7133                 return;
7134         }
7135
7136         Gtk::Label msg;
7137         ArdourDialog w (_("Moving embedded files into session folder"));
7138         w.get_vbox()->pack_start (msg);
7139         w.present ();
7140
7141         /* flush all pending GUI events because we're about to start copying
7142          * files
7143          */
7144
7145         Gtkmm2ext::UI::instance()->flush_pending ();
7146
7147         cerr << " Do it\n";
7148
7149         _session->bring_all_sources_into_session (boost::bind (&Editor::bring_in_callback, this, &msg, _1, _2, _3));
7150 }