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                         /* XXX: not ideal, as there may be more than one track involved in the selection */
4008                         _last_cut_copy_source_track = &mrv->get_time_axis_view();
4009                 }
4010         }
4011 }
4012
4013 struct lt_playlist {
4014     bool operator () (const PlaylistState& a, const PlaylistState& b) {
4015             return a.playlist < b.playlist;
4016     }
4017 };
4018
4019 struct PlaylistMapping {
4020     TimeAxisView* tv;
4021     boost::shared_ptr<Playlist> pl;
4022
4023     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4024 };
4025
4026 /** Remove `clicked_regionview' */
4027 void
4028 Editor::remove_clicked_region ()
4029 {
4030         if (clicked_routeview == 0 || clicked_regionview == 0) {
4031                 return;
4032         }
4033
4034         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4035
4036         playlist->clear_changes ();
4037         playlist->clear_owned_changes ();
4038         playlist->remove_region (clicked_regionview->region());
4039         if (Config->get_edit_mode() == Ripple)
4040                 playlist->ripple (clicked_regionview->region()->position(), -clicked_regionview->region()->length(), boost::shared_ptr<Region>());
4041
4042         /* We might have removed regions, which alters other regions' layering_index,
4043            so we need to do a recursive diff here.
4044         */
4045         vector<Command*> cmds;
4046         playlist->rdiff (cmds);
4047         _session->add_commands (cmds);
4048
4049         _session->add_command(new StatefulDiffCommand (playlist));
4050         commit_reversible_command ();
4051 }
4052
4053
4054 /** Remove the selected regions */
4055 void
4056 Editor::remove_selected_regions ()
4057 {
4058         RegionSelection rs = get_regions_from_selection_and_entered ();
4059
4060         if (!_session || rs.empty()) {
4061                 return;
4062         }
4063
4064         begin_reversible_command (_("remove region"));
4065
4066         list<boost::shared_ptr<Region> > regions_to_remove;
4067
4068         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4069                 // we can't just remove the region(s) in this loop because
4070                 // this removes them from the RegionSelection, and they thus
4071                 // disappear from underneath the iterator, and the ++i above
4072                 // SEGVs in a puzzling fashion.
4073
4074                 // so, first iterate over the regions to be removed from rs and
4075                 // add them to the regions_to_remove list, and then
4076                 // iterate over the list to actually remove them.
4077
4078                 regions_to_remove.push_back ((*i)->region());
4079         }
4080
4081         vector<boost::shared_ptr<Playlist> > playlists;
4082
4083         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4084
4085                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4086
4087                 if (!playlist) {
4088                         // is this check necessary?
4089                         continue;
4090                 }
4091
4092                 /* get_regions_from_selection_and_entered() guarantees that
4093                    the playlists involved are unique, so there is no need
4094                    to check here.
4095                 */
4096
4097                 playlists.push_back (playlist);
4098
4099                 playlist->clear_changes ();
4100                 playlist->clear_owned_changes ();
4101                 playlist->freeze ();
4102                 playlist->remove_region (*rl);
4103                 if (Config->get_edit_mode() == Ripple)
4104                         playlist->ripple ((*rl)->position(), -(*rl)->length(), boost::shared_ptr<Region>());
4105
4106         }
4107
4108         vector<boost::shared_ptr<Playlist> >::iterator pl;
4109
4110         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4111                 (*pl)->thaw ();
4112
4113                 /* We might have removed regions, which alters other regions' layering_index,
4114                    so we need to do a recursive diff here.
4115                 */
4116                 vector<Command*> cmds;
4117                 (*pl)->rdiff (cmds);
4118                 _session->add_commands (cmds);
4119
4120                 _session->add_command(new StatefulDiffCommand (*pl));
4121         }
4122
4123         commit_reversible_command ();
4124 }
4125
4126 /** Cut, copy or clear selected regions.
4127  * @param op Operation (Cut, Copy or Clear)
4128  */
4129 void
4130 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4131 {
4132         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4133            a map when we want ordered access to both elements. i think.
4134         */
4135
4136         vector<PlaylistMapping> pmap;
4137
4138         framepos_t first_position = max_framepos;
4139
4140         typedef set<boost::shared_ptr<Playlist> > FreezeList;
4141         FreezeList freezelist;
4142
4143         /* get ordering correct before we cut/copy */
4144
4145         rs.sort_by_position_and_track ();
4146
4147         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4148
4149                 first_position = min ((framepos_t) (*x)->region()->position(), first_position);
4150
4151                 if (op == Cut || op == Clear || op == Delete) {
4152                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4153
4154                         if (pl) {
4155                                 FreezeList::iterator fl;
4156
4157                                 // only take state if this is a new playlist.
4158                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4159                                         if ((*fl) == pl) {
4160                                                 break;
4161                                         }
4162                                 }
4163
4164                                 if (fl == freezelist.end()) {
4165                                         pl->clear_changes();
4166                                         pl->clear_owned_changes ();
4167                                         pl->freeze ();
4168                                         freezelist.insert (pl);
4169                                 }
4170                         }
4171                 }
4172
4173                 TimeAxisView* tv = &(*x)->get_time_axis_view();
4174                 vector<PlaylistMapping>::iterator z;
4175
4176                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4177                         if ((*z).tv == tv) {
4178                                 break;
4179                         }
4180                 }
4181
4182                 if (z == pmap.end()) {
4183                         pmap.push_back (PlaylistMapping (tv));
4184                 }
4185         }
4186
4187         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4188
4189                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4190
4191                 if (!pl) {
4192                         /* region not yet associated with a playlist (e.g. unfinished
4193                            capture pass.
4194                         */
4195                         ++x;
4196                         continue;
4197                 }
4198
4199                 TimeAxisView& tv = (*x)->get_time_axis_view();
4200                 boost::shared_ptr<Playlist> npl;
4201                 RegionSelection::iterator tmp;
4202
4203                 tmp = x;
4204                 ++tmp;
4205
4206                 if (op != Delete) {
4207
4208                         vector<PlaylistMapping>::iterator z;
4209
4210                         for (z = pmap.begin(); z != pmap.end(); ++z) {
4211                                 if ((*z).tv == &tv) {
4212                                         break;
4213                                 }
4214                         }
4215
4216                         assert (z != pmap.end());
4217
4218                         if (!(*z).pl) {
4219                                 npl = PlaylistFactory::create (pl->data_type(), *_session, "cutlist", true);
4220                                 npl->freeze();
4221                                 (*z).pl = npl;
4222                         } else {
4223                                 npl = (*z).pl;
4224                         }
4225                 }
4226
4227                 boost::shared_ptr<Region> r = (*x)->region();
4228                 boost::shared_ptr<Region> _xx;
4229
4230                 assert (r != 0);
4231
4232                 switch (op) {
4233                 case Delete:
4234                         pl->remove_region (r);
4235                         if (Config->get_edit_mode() == Ripple)
4236                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4237                         break;
4238
4239                 case Cut:
4240                         _xx = RegionFactory::create (r);
4241                         npl->add_region (_xx, r->position() - first_position);
4242                         pl->remove_region (r);
4243                         if (Config->get_edit_mode() == Ripple)
4244                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4245                         break;
4246
4247                 case Copy:
4248                         /* copy region before adding, so we're not putting same object into two different playlists */
4249                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4250                         break;
4251
4252                 case Clear:
4253                         pl->remove_region (r);
4254                         if (Config->get_edit_mode() == Ripple)
4255                                 pl->ripple (r->position(), -r->length(), boost::shared_ptr<Region>());
4256                         break;
4257                 }
4258
4259                 x = tmp;
4260         }
4261
4262         if (op != Delete) {
4263
4264                 list<boost::shared_ptr<Playlist> > foo;
4265
4266                 /* the pmap is in the same order as the tracks in which selected regions occured */
4267
4268                 for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4269                         if ((*i).pl) {
4270                                 (*i).pl->thaw();
4271                                 foo.push_back ((*i).pl);
4272                         }
4273                 }
4274
4275                 if (!foo.empty()) {
4276                         cut_buffer->set (foo);
4277                 }
4278
4279                 if (pmap.empty()) {
4280                         _last_cut_copy_source_track = 0;
4281                 } else {
4282                         _last_cut_copy_source_track = pmap.front().tv;
4283                 }
4284         }
4285
4286         for (FreezeList::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4287                 (*pl)->thaw ();
4288
4289                 /* We might have removed regions, which alters other regions' layering_index,
4290                    so we need to do a recursive diff here.
4291                 */
4292                 vector<Command*> cmds;
4293                 (*pl)->rdiff (cmds);
4294                 _session->add_commands (cmds);
4295
4296                 _session->add_command (new StatefulDiffCommand (*pl));
4297         }
4298 }
4299
4300 void
4301 Editor::cut_copy_ranges (CutCopyOp op)
4302 {
4303         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4304
4305         /* Sort the track selection now, so that it if is used, the playlists
4306            selected by the calls below to cut_copy_clear are in the order that
4307            their tracks appear in the editor.  This makes things like paste
4308            of ranges work properly.
4309         */
4310
4311         sort_track_selection (ts);
4312
4313         if (ts.empty()) {
4314                 if (!entered_track) {
4315                         return;
4316                 }
4317                 ts.push_back (entered_track);
4318         }
4319
4320         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4321                 (*i)->cut_copy_clear (*selection, op);
4322         }
4323 }
4324
4325 void
4326 Editor::paste (float times, bool from_context)
4327 {
4328         DEBUG_TRACE (DEBUG::CutNPaste, "paste to preferred edit pos\n");
4329
4330         paste_internal (get_preferred_edit_position (false, from_context), times);
4331 }
4332
4333 void
4334 Editor::mouse_paste ()
4335 {
4336         framepos_t where;
4337         bool ignored;
4338
4339         if (!mouse_frame (where, ignored)) {
4340                 return;
4341         }
4342
4343         snap_to (where);
4344         paste_internal (where, 1);
4345 }
4346
4347 void
4348 Editor::paste_internal (framepos_t position, float times)
4349 {
4350         DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("apparent paste position is %1\n", position));
4351
4352         if (internal_editing()) {
4353                 if (cut_buffer->midi_notes.empty()) {
4354                         return;
4355                 }
4356         } else {
4357                 if (cut_buffer->empty()) {
4358                         return;
4359                 }
4360         }
4361
4362         if (position == max_framepos) {
4363                 position = get_preferred_edit_position();
4364                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("preferred edit position is %1\n", position));
4365         }
4366
4367         if (position == last_paste_pos) {
4368                 /* repeated paste in the same position */
4369                 ++paste_count;
4370         } else {
4371                 /* paste in new location, reset repeated paste state */
4372                 paste_count = 0;
4373                 last_paste_pos = position;
4374         }
4375
4376         TrackViewList ts;
4377         TrackViewList::iterator i;
4378         size_t nth;
4379
4380         /* get everything in the correct order */
4381
4382         if (_edit_point == Editing::EditAtMouse && entered_track) {
4383                 /* With the mouse edit point, paste onto the track under the mouse */
4384                 ts.push_back (entered_track);
4385         } else if (_edit_point == Editing::EditAtMouse && entered_regionview) {
4386                 /* With the mouse edit point, paste onto the track of the region under the mouse */
4387                 ts.push_back (&entered_regionview->get_time_axis_view());
4388         } else if (!selection->tracks.empty()) {
4389                 /* Otherwise, if there are some selected tracks, paste to them */
4390                 ts = selection->tracks.filter_to_unique_playlists ();
4391                 sort_track_selection (ts);
4392         } else if (_last_cut_copy_source_track) {
4393                 /* Otherwise paste to the track that the cut/copy came from;
4394                    see discussion in mantis #3333.
4395                 */
4396                 ts.push_back (_last_cut_copy_source_track);
4397         }
4398
4399         if (internal_editing ()) {
4400
4401                 /* undo/redo is handled by individual tracks/regions */
4402
4403                 RegionSelection rs;
4404                 RegionSelection::iterator r;
4405                 MidiNoteSelection::iterator cb;
4406
4407                 get_regions_at (rs, position, ts);
4408
4409                 for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4410                      cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4411                         MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4412                         if (mrv) {
4413                                 mrv->paste (position, paste_count, times, **cb);
4414                                 ++cb;
4415                         }
4416                 }
4417
4418         } else {
4419
4420                 /* we do redo (do you do voodoo?) */
4421
4422                 begin_reversible_command (Operations::paste);
4423
4424                 for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4425                         (*i)->paste (position, paste_count, times, *cut_buffer, nth);
4426                 }
4427
4428                 commit_reversible_command ();
4429         }
4430 }
4431
4432 void
4433 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4434 {
4435         boost::shared_ptr<Playlist> playlist;
4436         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4437         RegionSelection foo;
4438
4439         framepos_t const start_frame = regions.start ();
4440         framepos_t const end_frame = regions.end_frame ();
4441
4442         begin_reversible_command (Operations::duplicate_region);
4443
4444         selection->clear_regions ();
4445
4446         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4447
4448                 boost::shared_ptr<Region> r ((*i)->region());
4449
4450                 TimeAxisView& tv = (*i)->get_time_axis_view();
4451                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4452                 latest_regionviews.clear ();
4453                 sigc::connection c = rtv->view()->RegionViewAdded.connect (sigc::mem_fun(*this, &Editor::collect_new_region_view));
4454
4455                 playlist = (*i)->region()->playlist();
4456                 playlist->clear_changes ();
4457                 playlist->duplicate (r, end_frame + (r->first_frame() - start_frame), times);
4458                 _session->add_command(new StatefulDiffCommand (playlist));
4459
4460                 c.disconnect ();
4461
4462                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4463         }
4464
4465         commit_reversible_command ();
4466
4467         if (!foo.empty()) {
4468                 selection->set (foo);
4469         }
4470 }
4471
4472 void
4473 Editor::duplicate_selection (float times)
4474 {
4475         if (selection->time.empty() || selection->tracks.empty()) {
4476                 return;
4477         }
4478
4479         boost::shared_ptr<Playlist> playlist;
4480         vector<boost::shared_ptr<Region> > new_regions;
4481         vector<boost::shared_ptr<Region> >::iterator ri;
4482
4483         create_region_from_selection (new_regions);
4484
4485         if (new_regions.empty()) {
4486                 return;
4487         }
4488
4489         begin_reversible_command (_("duplicate selection"));
4490
4491         ri = new_regions.begin();
4492
4493         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4494
4495         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4496                 if ((playlist = (*i)->playlist()) == 0) {
4497                         continue;
4498                 }
4499                 playlist->clear_changes ();
4500                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4501                 _session->add_command (new StatefulDiffCommand (playlist));
4502
4503                 ++ri;
4504                 if (ri == new_regions.end()) {
4505                         --ri;
4506                 }
4507         }
4508
4509         commit_reversible_command ();
4510 }
4511
4512 /** Reset all selected points to the relevant default value */
4513 void
4514 Editor::reset_point_selection ()
4515 {
4516         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4517                 ARDOUR::AutomationList::iterator j = (*i)->model ();
4518                 (*j)->value = (*i)->line().the_list()->default_value ();
4519         }
4520 }
4521
4522 void
4523 Editor::center_playhead ()
4524 {
4525         float const page = _visible_canvas_width * samples_per_pixel;
4526         center_screen_internal (playhead_cursor->current_frame (), page);
4527 }
4528
4529 void
4530 Editor::center_edit_point ()
4531 {
4532         float const page = _visible_canvas_width * samples_per_pixel;
4533         center_screen_internal (get_preferred_edit_position(), page);
4534 }
4535
4536 /** Caller must begin and commit a reversible command */
4537 void
4538 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4539 {
4540         playlist->clear_changes ();
4541         playlist->clear ();
4542         _session->add_command (new StatefulDiffCommand (playlist));
4543 }
4544
4545 void
4546 Editor::nudge_track (bool use_edit, bool forwards)
4547 {
4548         boost::shared_ptr<Playlist> playlist;
4549         framepos_t distance;
4550         framepos_t next_distance;
4551         framepos_t start;
4552
4553         if (use_edit) {
4554                 start = get_preferred_edit_position();
4555         } else {
4556                 start = 0;
4557         }
4558
4559         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4560                 return;
4561         }
4562
4563         if (selection->tracks.empty()) {
4564                 return;
4565         }
4566
4567         begin_reversible_command (_("nudge track"));
4568
4569         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
4570
4571         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
4572
4573                 if ((playlist = (*i)->playlist()) == 0) {
4574                         continue;
4575                 }
4576
4577                 playlist->clear_changes ();
4578                 playlist->clear_owned_changes ();
4579
4580                 playlist->nudge_after (start, distance, forwards);
4581
4582                 vector<Command*> cmds;
4583
4584                 playlist->rdiff (cmds);
4585                 _session->add_commands (cmds);
4586
4587                 _session->add_command (new StatefulDiffCommand (playlist));
4588         }
4589
4590         commit_reversible_command ();
4591 }
4592
4593 void
4594 Editor::remove_last_capture ()
4595 {
4596         vector<string> choices;
4597         string prompt;
4598
4599         if (!_session) {
4600                 return;
4601         }
4602
4603         if (Config->get_verify_remove_last_capture()) {
4604                 prompt  = _("Do you really want to destroy the last capture?"
4605                             "\n(This is destructive and cannot be undone)");
4606
4607                 choices.push_back (_("No, do nothing."));
4608                 choices.push_back (_("Yes, destroy it."));
4609
4610                 Gtkmm2ext::Choice prompter (_("Destroy last capture"), prompt, choices);
4611
4612                 if (prompter.run () == 1) {
4613                         _session->remove_last_capture ();
4614                         _regions->redisplay ();
4615                 }
4616
4617         } else {
4618                 _session->remove_last_capture();
4619                 _regions->redisplay ();
4620         }
4621 }
4622
4623 void
4624 Editor::normalize_region ()
4625 {
4626         if (!_session) {
4627                 return;
4628         }
4629
4630         RegionSelection rs = get_regions_from_selection_and_entered ();
4631
4632         if (rs.empty()) {
4633                 return;
4634         }
4635
4636         NormalizeDialog dialog (rs.size() > 1);
4637
4638         if (dialog.run () == RESPONSE_CANCEL) {
4639                 return;
4640         }
4641
4642         set_canvas_cursor (_cursors->wait);
4643         gdk_flush ();
4644
4645         /* XXX: should really only count audio regions here */
4646         int const regions = rs.size ();
4647
4648         /* Make a list of the selected audio regions' maximum amplitudes, and also
4649            obtain the maximum amplitude of them all.
4650         */
4651         list<double> max_amps;
4652         double max_amp = 0;
4653         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
4654                 AudioRegionView const * arv = dynamic_cast<AudioRegionView const *> (*i);
4655                 if (arv) {
4656                         dialog.descend (1.0 / regions);
4657                         double const a = arv->audio_region()->maximum_amplitude (&dialog);
4658
4659                         if (a == -1) {
4660                                 /* the user cancelled the operation */
4661                                 set_canvas_cursor (current_canvas_cursor);
4662                                 return;
4663                         }
4664
4665                         max_amps.push_back (a);
4666                         max_amp = max (max_amp, a);
4667                         dialog.ascend ();
4668                 }
4669         }
4670
4671         begin_reversible_command (_("normalize"));
4672
4673         list<double>::const_iterator a = max_amps.begin ();
4674
4675         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4676                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*r);
4677                 if (!arv) {
4678                         continue;
4679                 }
4680
4681                 arv->region()->clear_changes ();
4682
4683                 double const amp = dialog.normalize_individually() ? *a : max_amp;
4684
4685                 arv->audio_region()->normalize (amp, dialog.target ());
4686                 _session->add_command (new StatefulDiffCommand (arv->region()));
4687
4688                 ++a;
4689         }
4690
4691         commit_reversible_command ();
4692         set_canvas_cursor (current_canvas_cursor);
4693 }
4694
4695
4696 void
4697 Editor::reset_region_scale_amplitude ()
4698 {
4699         if (!_session) {
4700                 return;
4701         }
4702
4703         RegionSelection rs = get_regions_from_selection_and_entered ();
4704
4705         if (rs.empty()) {
4706                 return;
4707         }
4708
4709         begin_reversible_command ("reset gain");
4710
4711         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4712                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4713                 if (!arv)
4714                         continue;
4715                 arv->region()->clear_changes ();
4716                 arv->audio_region()->set_scale_amplitude (1.0f);
4717                 _session->add_command (new StatefulDiffCommand (arv->region()));
4718         }
4719
4720         commit_reversible_command ();
4721 }
4722
4723 void
4724 Editor::adjust_region_gain (bool up)
4725 {
4726         RegionSelection rs = get_regions_from_selection_and_entered ();
4727
4728         if (!_session || rs.empty()) {
4729                 return;
4730         }
4731
4732         begin_reversible_command ("adjust region gain");
4733
4734         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4735                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4736                 if (!arv) {
4737                         continue;
4738                 }
4739
4740                 arv->region()->clear_changes ();
4741
4742                 double dB = accurate_coefficient_to_dB (arv->audio_region()->scale_amplitude ());
4743
4744                 if (up) {
4745                         dB += 1;
4746                 } else {
4747                         dB -= 1;
4748                 }
4749
4750                 arv->audio_region()->set_scale_amplitude (dB_to_coefficient (dB));
4751                 _session->add_command (new StatefulDiffCommand (arv->region()));
4752         }
4753
4754         commit_reversible_command ();
4755 }
4756
4757
4758 void
4759 Editor::reverse_region ()
4760 {
4761         if (!_session) {
4762                 return;
4763         }
4764
4765         Reverse rev (*_session);
4766         apply_filter (rev, _("reverse regions"));
4767 }
4768
4769 void
4770 Editor::strip_region_silence ()
4771 {
4772         if (!_session) {
4773                 return;
4774         }
4775
4776         RegionSelection rs = get_regions_from_selection_and_entered ();
4777
4778         if (rs.empty()) {
4779                 return;
4780         }
4781
4782         std::list<RegionView*> audio_only;
4783
4784         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4785                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4786                 if (arv) {
4787                         audio_only.push_back (arv);
4788                 }
4789         }
4790
4791         StripSilenceDialog d (_session, audio_only);
4792         int const r = d.run ();
4793
4794         d.drop_rects ();
4795
4796         if (r == Gtk::RESPONSE_OK) {
4797                 ARDOUR::AudioIntervalMap silences;
4798                 d.silences (silences);
4799                 StripSilence s (*_session, silences, d.fade_length());
4800                 apply_filter (s, _("strip silence"), &d);
4801         }
4802 }
4803
4804 Command*
4805 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4806 {
4807         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4808         mrv.selection_as_notelist (selected, true);
4809
4810         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4811         v.push_back (selected);
4812
4813         framepos_t pos_frames = mrv.midi_region()->position() - mrv.midi_region()->start();
4814         double     pos_beats  = _session->tempo_map().framewalk_to_beats(0, pos_frames);
4815
4816         return op (mrv.midi_region()->model(), pos_beats, v);
4817 }
4818
4819 void
4820 Editor::apply_midi_note_edit_op (MidiOperator& op)
4821 {
4822         Command* cmd;
4823
4824         RegionSelection rs = get_regions_from_selection_and_entered ();
4825
4826         if (rs.empty()) {
4827                 return;
4828         }
4829
4830         begin_reversible_command (op.name ());
4831
4832         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4833                 RegionSelection::iterator tmp = r;
4834                 ++tmp;
4835
4836                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4837
4838                 if (mrv) {
4839                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4840                         if (cmd) {
4841                                 (*cmd)();
4842                                 _session->add_command (cmd);
4843                         }
4844                 }
4845
4846                 r = tmp;
4847         }
4848
4849         commit_reversible_command ();
4850 }
4851
4852 void
4853 Editor::fork_region ()
4854 {
4855         RegionSelection rs = get_regions_from_selection_and_entered ();
4856
4857         if (rs.empty()) {
4858                 return;
4859         }
4860
4861         begin_reversible_command (_("Fork Region(s)"));
4862
4863         set_canvas_cursor (_cursors->wait);
4864         gdk_flush ();
4865
4866         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4867                 RegionSelection::iterator tmp = r;
4868                 ++tmp;
4869
4870                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4871
4872                 if (mrv) {
4873                         try {
4874                                 boost::shared_ptr<Playlist> playlist = mrv->region()->playlist();
4875                                 boost::shared_ptr<MidiSource> new_source = _session->create_midi_source_by_stealing_name (mrv->midi_view()->track());
4876                                 boost::shared_ptr<MidiRegion> newregion = mrv->midi_region()->clone (new_source);
4877
4878                                 playlist->clear_changes ();
4879                                 playlist->replace_region (mrv->region(), newregion, mrv->region()->position());
4880                                 _session->add_command(new StatefulDiffCommand (playlist));
4881                         } catch (...) {
4882                                 error << string_compose (_("Could not unlink %1"), mrv->region()->name()) << endmsg;
4883                         }
4884                 }
4885
4886                 r = tmp;
4887         }
4888
4889         commit_reversible_command ();
4890
4891         set_canvas_cursor (current_canvas_cursor);
4892 }
4893
4894 void
4895 Editor::quantize_region ()
4896 {
4897         int selected_midi_region_cnt = 0;
4898
4899         if (!_session) {
4900                 return;
4901         }
4902
4903         RegionSelection rs = get_regions_from_selection_and_entered ();
4904
4905         if (rs.empty()) {
4906                 return;
4907         }
4908
4909         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4910                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4911                 if (mrv) {
4912                         selected_midi_region_cnt++;
4913                 }
4914         }
4915
4916         if (selected_midi_region_cnt == 0) {
4917                 return;
4918         }
4919
4920         QuantizeDialog* qd = new QuantizeDialog (*this);
4921
4922         qd->present ();
4923         const int r = qd->run ();
4924         qd->hide ();
4925
4926         if (r == Gtk::RESPONSE_OK) {
4927                 Quantize quant (*_session, qd->snap_start(), qd->snap_end(),
4928                                 qd->start_grid_size(), qd->end_grid_size(),
4929                                 qd->strength(), qd->swing(), qd->threshold());
4930
4931                 apply_midi_note_edit_op (quant);
4932         }
4933 }
4934
4935 void
4936 Editor::insert_patch_change (bool from_context)
4937 {
4938         RegionSelection rs = get_regions_from_selection_and_entered ();
4939
4940         if (rs.empty ()) {
4941                 return;
4942         }
4943
4944         const framepos_t p = get_preferred_edit_position (false, from_context);
4945
4946         /* XXX: bit of a hack; use the MIDNAM from the first selected region;
4947            there may be more than one, but the PatchChangeDialog can only offer
4948            one set of patch menus.
4949         */
4950         MidiRegionView* first = dynamic_cast<MidiRegionView*> (rs.front ());
4951
4952         Evoral::PatchChange<Evoral::MusicalTime> empty (0, 0, 0, 0);
4953         PatchChangeDialog d (0, _session, empty, first->instrument_info(), Gtk::Stock::ADD);
4954
4955         if (d.run() == RESPONSE_CANCEL) {
4956                 return;
4957         }
4958
4959         for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4960                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*i);
4961                 if (mrv) {
4962                         if (p >= mrv->region()->first_frame() && p <= mrv->region()->last_frame()) {
4963                                 mrv->add_patch_change (p - mrv->region()->position(), d.patch ());
4964                         }
4965                 }
4966         }
4967 }
4968
4969 void
4970 Editor::apply_filter (Filter& filter, string command, ProgressReporter* progress)
4971 {
4972         RegionSelection rs = get_regions_from_selection_and_entered ();
4973
4974         if (rs.empty()) {
4975                 return;
4976         }
4977
4978         begin_reversible_command (command);
4979
4980         set_canvas_cursor (_cursors->wait);
4981         gdk_flush ();
4982
4983         int n = 0;
4984         int const N = rs.size ();
4985
4986         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4987                 RegionSelection::iterator tmp = r;
4988                 ++tmp;
4989
4990                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4991                 if (arv) {
4992                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4993
4994                         if (progress) {
4995                                 progress->descend (1.0 / N);
4996                         }
4997
4998                         if (arv->audio_region()->apply (filter, progress) == 0) {
4999
5000                                 playlist->clear_changes ();
5001                                 playlist->clear_owned_changes ();
5002
5003                                 if (filter.results.empty ()) {
5004
5005                                         /* no regions returned; remove the old one */
5006                                         playlist->remove_region (arv->region ());
5007
5008                                 } else {
5009
5010                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
5011
5012                                         /* first region replaces the old one */
5013                                         playlist->replace_region (arv->region(), *res, (*res)->position());
5014                                         ++res;
5015
5016                                         /* add the rest */
5017                                         while (res != filter.results.end()) {
5018                                                 playlist->add_region (*res, (*res)->position());
5019                                                 ++res;
5020                                         }
5021
5022                                 }
5023
5024                                 /* We might have removed regions, which alters other regions' layering_index,
5025                                    so we need to do a recursive diff here.
5026                                 */
5027                                 vector<Command*> cmds;
5028                                 playlist->rdiff (cmds);
5029                                 _session->add_commands (cmds);
5030
5031                                 _session->add_command(new StatefulDiffCommand (playlist));
5032                         } else {
5033                                 goto out;
5034                         }
5035
5036                         if (progress) {
5037                                 progress->ascend ();
5038                         }
5039                 }
5040
5041                 r = tmp;
5042                 ++n;
5043         }
5044
5045         commit_reversible_command ();
5046
5047   out:
5048         set_canvas_cursor (current_canvas_cursor);
5049 }
5050
5051 void
5052 Editor::external_edit_region ()
5053 {
5054         /* more to come */
5055 }
5056
5057 void
5058 Editor::reset_region_gain_envelopes ()
5059 {
5060         RegionSelection rs = get_regions_from_selection_and_entered ();
5061
5062         if (!_session || rs.empty()) {
5063                 return;
5064         }
5065
5066         _session->begin_reversible_command (_("reset region gain"));
5067
5068         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5069                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5070                 if (arv) {
5071                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
5072                         XMLNode& before (alist->get_state());
5073
5074                         arv->audio_region()->set_default_envelope ();
5075                         _session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
5076                 }
5077         }
5078
5079         _session->commit_reversible_command ();
5080 }
5081
5082 void
5083 Editor::set_region_gain_visibility (RegionView* rv)
5084 {
5085         AudioRegionView* arv = dynamic_cast<AudioRegionView*> (rv);
5086         if (arv) {
5087                 arv->update_envelope_visibility();
5088         }
5089 }
5090
5091 void
5092 Editor::set_gain_envelope_visibility ()
5093 {
5094         if (!_session) {
5095                 return;
5096         }
5097
5098         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5099                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5100                 if (v) {
5101                         v->audio_view()->foreach_regionview (sigc::mem_fun (this, &Editor::set_region_gain_visibility));
5102                 }
5103         }
5104 }
5105
5106 void
5107 Editor::toggle_gain_envelope_active ()
5108 {
5109         if (_ignore_region_action) {
5110                 return;
5111         }
5112
5113         RegionSelection rs = get_regions_from_selection_and_entered ();
5114
5115         if (!_session || rs.empty()) {
5116                 return;
5117         }
5118
5119         _session->begin_reversible_command (_("region gain envelope active"));
5120
5121         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5122                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
5123                 if (arv) {
5124                         arv->region()->clear_changes ();
5125                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
5126                         _session->add_command (new StatefulDiffCommand (arv->region()));
5127                 }
5128         }
5129
5130         _session->commit_reversible_command ();
5131 }
5132
5133 void
5134 Editor::toggle_region_lock ()
5135 {
5136         if (_ignore_region_action) {
5137                 return;
5138         }
5139
5140         RegionSelection rs = get_regions_from_selection_and_entered ();
5141
5142         if (!_session || rs.empty()) {
5143                 return;
5144         }
5145
5146         _session->begin_reversible_command (_("toggle region lock"));
5147
5148         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5149                 (*i)->region()->clear_changes ();
5150                 (*i)->region()->set_locked (!(*i)->region()->locked());
5151                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5152         }
5153
5154         _session->commit_reversible_command ();
5155 }
5156
5157 void
5158 Editor::toggle_region_video_lock ()
5159 {
5160         if (_ignore_region_action) {
5161                 return;
5162         }
5163
5164         RegionSelection rs = get_regions_from_selection_and_entered ();
5165
5166         if (!_session || rs.empty()) {
5167                 return;
5168         }
5169
5170         _session->begin_reversible_command (_("Toggle Video Lock"));
5171
5172         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5173                 (*i)->region()->clear_changes ();
5174                 (*i)->region()->set_video_locked (!(*i)->region()->video_locked());
5175                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5176         }
5177
5178         _session->commit_reversible_command ();
5179 }
5180
5181 void
5182 Editor::toggle_region_lock_style ()
5183 {
5184         if (_ignore_region_action) {
5185                 return;
5186         }
5187
5188         RegionSelection rs = get_regions_from_selection_and_entered ();
5189
5190         if (!_session || rs.empty()) {
5191                 return;
5192         }
5193
5194         _session->begin_reversible_command (_("region lock style"));
5195
5196         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5197                 (*i)->region()->clear_changes ();
5198                 PositionLockStyle const ns = (*i)->region()->position_lock_style() == AudioTime ? MusicTime : AudioTime;
5199                 (*i)->region()->set_position_lock_style (ns);
5200                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5201         }
5202
5203         _session->commit_reversible_command ();
5204 }
5205
5206 void
5207 Editor::toggle_opaque_region ()
5208 {
5209         if (_ignore_region_action) {
5210                 return;
5211         }
5212
5213         RegionSelection rs = get_regions_from_selection_and_entered ();
5214
5215         if (!_session || rs.empty()) {
5216                 return;
5217         }
5218
5219         _session->begin_reversible_command (_("change region opacity"));
5220
5221         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5222                 (*i)->region()->clear_changes ();
5223                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5224                 _session->add_command (new StatefulDiffCommand ((*i)->region()));
5225         }
5226
5227         _session->commit_reversible_command ();
5228 }
5229
5230 void
5231 Editor::toggle_record_enable ()
5232 {
5233         bool new_state = false;
5234         bool first = true;
5235         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5236                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5237                 if (!rtav)
5238                         continue;
5239                 if (!rtav->is_track())
5240                         continue;
5241
5242                 if (first) {
5243                         new_state = !rtav->track()->record_enabled();
5244                         first = false;
5245                 }
5246
5247                 rtav->track()->set_record_enabled (new_state, this);
5248         }
5249 }
5250
5251 void
5252 Editor::toggle_solo ()
5253 {
5254         bool new_state = false;
5255         bool first = true;
5256         boost::shared_ptr<RouteList> rl (new RouteList);
5257
5258         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5259                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5260
5261                 if (!rtav) {
5262                         continue;
5263                 }
5264
5265                 if (first) {
5266                         new_state = !rtav->route()->soloed ();
5267                         first = false;
5268                 }
5269
5270                 rl->push_back (rtav->route());
5271         }
5272
5273         _session->set_solo (rl, new_state, Session::rt_cleanup, true);
5274 }
5275
5276 void
5277 Editor::toggle_mute ()
5278 {
5279         bool new_state = false;
5280         bool first = true;
5281         boost::shared_ptr<RouteList> rl (new RouteList);
5282
5283         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5284                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5285
5286                 if (!rtav) {
5287                         continue;
5288                 }
5289
5290                 if (first) {
5291                         new_state = !rtav->route()->muted();
5292                         first = false;
5293                 }
5294
5295                 rl->push_back (rtav->route());
5296         }
5297
5298         _session->set_mute (rl, new_state, Session::rt_cleanup, true);
5299 }
5300
5301 void
5302 Editor::toggle_solo_isolate ()
5303 {
5304 }
5305
5306
5307 void
5308 Editor::fade_range ()
5309 {
5310         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
5311
5312         begin_reversible_command (_("fade range"));
5313
5314         for (TrackViewList::iterator i = ts.begin(); i != ts.end(); ++i) {
5315                 (*i)->fade_range (selection->time);
5316         }
5317
5318         commit_reversible_command ();
5319 }
5320
5321
5322 void
5323 Editor::set_fade_length (bool in)
5324 {
5325         RegionSelection rs = get_regions_from_selection_and_entered ();
5326
5327         if (rs.empty()) {
5328                 return;
5329         }
5330
5331         /* we need a region to measure the offset from the start */
5332
5333         RegionView* rv = rs.front ();
5334
5335         framepos_t pos = get_preferred_edit_position();
5336         framepos_t len;
5337         char const * cmd;
5338
5339         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5340                 /* edit point is outside the relevant region */
5341                 return;
5342         }
5343
5344         if (in) {
5345                 if (pos <= rv->region()->position()) {
5346                         /* can't do it */
5347                         return;
5348                 }
5349                 len = pos - rv->region()->position();
5350                 cmd = _("set fade in length");
5351         } else {
5352                 if (pos >= rv->region()->last_frame()) {
5353                         /* can't do it */
5354                         return;
5355                 }
5356                 len = rv->region()->last_frame() - pos;
5357                 cmd = _("set fade out length");
5358         }
5359
5360         begin_reversible_command (cmd);
5361
5362         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5363                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5364
5365                 if (!tmp) {
5366                         return;
5367                 }
5368
5369                 boost::shared_ptr<AutomationList> alist;
5370                 if (in) {
5371                         alist = tmp->audio_region()->fade_in();
5372                 } else {
5373                         alist = tmp->audio_region()->fade_out();
5374                 }
5375
5376                 XMLNode &before = alist->get_state();
5377
5378                 if (in) {
5379                         tmp->audio_region()->set_fade_in_length (len);
5380                         tmp->audio_region()->set_fade_in_active (true);
5381                 } else {
5382                         tmp->audio_region()->set_fade_out_length (len);
5383                         tmp->audio_region()->set_fade_out_active (true);
5384                 }
5385
5386                 XMLNode &after = alist->get_state();
5387                 _session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5388         }
5389
5390         commit_reversible_command ();
5391 }
5392
5393 void
5394 Editor::set_fade_in_shape (FadeShape shape)
5395 {
5396         RegionSelection rs = get_regions_from_selection_and_entered ();
5397
5398         if (rs.empty()) {
5399                 return;
5400         }
5401
5402         begin_reversible_command (_("set fade in shape"));
5403
5404         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5405                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5406
5407                 if (!tmp) {
5408                         return;
5409                 }
5410
5411                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5412                 XMLNode &before = alist->get_state();
5413
5414                 tmp->audio_region()->set_fade_in_shape (shape);
5415
5416                 XMLNode &after = alist->get_state();
5417                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5418         }
5419
5420         commit_reversible_command ();
5421
5422 }
5423
5424 void
5425 Editor::set_fade_out_shape (FadeShape shape)
5426 {
5427         RegionSelection rs = get_regions_from_selection_and_entered ();
5428
5429         if (rs.empty()) {
5430                 return;
5431         }
5432
5433         begin_reversible_command (_("set fade out shape"));
5434
5435         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5436                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5437
5438                 if (!tmp) {
5439                         return;
5440                 }
5441
5442                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5443                 XMLNode &before = alist->get_state();
5444
5445                 tmp->audio_region()->set_fade_out_shape (shape);
5446
5447                 XMLNode &after = alist->get_state();
5448                 _session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5449         }
5450
5451         commit_reversible_command ();
5452 }
5453
5454 void
5455 Editor::set_fade_in_active (bool yn)
5456 {
5457         RegionSelection rs = get_regions_from_selection_and_entered ();
5458
5459         if (rs.empty()) {
5460                 return;
5461         }
5462
5463         begin_reversible_command (_("set fade in active"));
5464
5465         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5466                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5467
5468                 if (!tmp) {
5469                         return;
5470                 }
5471
5472
5473                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5474
5475                 ar->clear_changes ();
5476                 ar->set_fade_in_active (yn);
5477                 _session->add_command (new StatefulDiffCommand (ar));
5478         }
5479
5480         commit_reversible_command ();
5481 }
5482
5483 void
5484 Editor::set_fade_out_active (bool yn)
5485 {
5486         RegionSelection rs = get_regions_from_selection_and_entered ();
5487
5488         if (rs.empty()) {
5489                 return;
5490         }
5491
5492         begin_reversible_command (_("set fade out active"));
5493
5494         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5495                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5496
5497                 if (!tmp) {
5498                         return;
5499                 }
5500
5501                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5502
5503                 ar->clear_changes ();
5504                 ar->set_fade_out_active (yn);
5505                 _session->add_command(new StatefulDiffCommand (ar));
5506         }
5507
5508         commit_reversible_command ();
5509 }
5510
5511 void
5512 Editor::toggle_region_fades (int dir)
5513 {
5514         if (_ignore_region_action) {
5515                 return;
5516         }
5517
5518         boost::shared_ptr<AudioRegion> ar;
5519         bool yn = false;
5520
5521         RegionSelection rs = get_regions_from_selection_and_entered ();
5522
5523         if (rs.empty()) {
5524                 return;
5525         }
5526
5527         RegionSelection::iterator i;
5528         for (i = rs.begin(); i != rs.end(); ++i) {
5529                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5530                         if (dir == -1) {
5531                                 yn = ar->fade_out_active ();
5532                         } else {
5533                                 yn = ar->fade_in_active ();
5534                         }
5535                         break;
5536                 }
5537         }
5538
5539         if (i == rs.end()) {
5540                 return;
5541         }
5542
5543         /* XXX should this undo-able? */
5544
5545         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5546                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5547                         continue;
5548                 }
5549                 if (dir == 1 || dir == 0) {
5550                         ar->set_fade_in_active (!yn);
5551                 }
5552
5553                 if (dir == -1 || dir == 0) {
5554                         ar->set_fade_out_active (!yn);
5555                 }
5556         }
5557 }
5558
5559
5560 /** Update region fade visibility after its configuration has been changed */
5561 void
5562 Editor::update_region_fade_visibility ()
5563 {
5564         bool _fade_visibility = _session->config.get_show_region_fades ();
5565
5566         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5567                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5568                 if (v) {
5569                         if (_fade_visibility) {
5570                                 v->audio_view()->show_all_fades ();
5571                         } else {
5572                                 v->audio_view()->hide_all_fades ();
5573                         }
5574                 }
5575         }
5576 }
5577
5578 void
5579 Editor::set_edit_point ()
5580 {
5581         framepos_t where;
5582         bool ignored;
5583
5584         if (!mouse_frame (where, ignored)) {
5585                 return;
5586         }
5587
5588         snap_to (where);
5589
5590         if (selection->markers.empty()) {
5591
5592                 mouse_add_new_marker (where);
5593
5594         } else {
5595                 bool ignored;
5596
5597                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5598
5599                 if (loc) {
5600                         loc->move_to (where);
5601                 }
5602         }
5603 }
5604
5605 void
5606 Editor::set_playhead_cursor ()
5607 {
5608         if (entered_marker) {
5609                 _session->request_locate (entered_marker->position(), _session->transport_rolling());
5610         } else {
5611                 framepos_t where;
5612                 bool ignored;
5613
5614                 if (!mouse_frame (where, ignored)) {
5615                         return;
5616                 }
5617
5618                 snap_to (where);
5619
5620                 if (_session) {
5621                         _session->request_locate (where, _session->transport_rolling());
5622                 }
5623         }
5624
5625         if ( Config->get_follow_edits() )
5626                 cancel_time_selection();
5627 }
5628
5629 void
5630 Editor::split_region ()
5631 {
5632         if ( !selection->time.empty()) {
5633                 separate_regions_between (selection->time);
5634                 return;
5635         }
5636
5637         RegionSelection rs = get_regions_from_selection_and_edit_point ();
5638
5639         framepos_t where = get_preferred_edit_position ();
5640
5641         if (rs.empty()) {
5642                 return;
5643         }
5644
5645         split_regions_at (where, rs);
5646 }
5647
5648 struct EditorOrderRouteSorter {
5649     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5650             return a->order_key () < b->order_key ();
5651     }
5652 };
5653
5654 void
5655 Editor::select_next_route()
5656 {
5657         if (selection->tracks.empty()) {
5658                 selection->set (track_views.front());
5659                 return;
5660         }
5661
5662         TimeAxisView* current = selection->tracks.front();
5663
5664         RouteUI *rui;
5665         do {
5666                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5667                         if (*i == current) {
5668                                 ++i;
5669                                 if (i != track_views.end()) {
5670                                         current = (*i);
5671                                 } else {
5672                                         current = (*(track_views.begin()));
5673                                         //selection->set (*(track_views.begin()));
5674                                 }
5675                                 break;
5676                         }
5677                 }
5678                 rui = dynamic_cast<RouteUI *>(current);
5679         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5680
5681         selection->set(current);
5682
5683         ensure_time_axis_view_is_visible (*current, false);
5684 }
5685
5686 void
5687 Editor::select_prev_route()
5688 {
5689         if (selection->tracks.empty()) {
5690                 selection->set (track_views.front());
5691                 return;
5692         }
5693
5694         TimeAxisView* current = selection->tracks.front();
5695
5696         RouteUI *rui;
5697         do {
5698                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5699                         if (*i == current) {
5700                                 ++i;
5701                                 if (i != track_views.rend()) {
5702                                         current = (*i);
5703                                 } else {
5704                                         current = *(track_views.rbegin());
5705                                 }
5706                                 break;
5707                         }
5708                 }
5709                 rui = dynamic_cast<RouteUI *>(current);
5710         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5711
5712         selection->set (current);
5713
5714         ensure_time_axis_view_is_visible (*current, false);
5715 }
5716
5717 void
5718 Editor::set_loop_from_selection (bool play)
5719 {
5720         if (_session == 0 || selection->time.empty()) {
5721                 return;
5722         }
5723
5724         framepos_t start = selection->time[clicked_selection].start;
5725         framepos_t end = selection->time[clicked_selection].end;
5726
5727         set_loop_range (start, end,  _("set loop range from selection"));
5728
5729         if (play) {
5730                 _session->request_locate (start, true);
5731                 _session->request_play_loop (true);
5732         }
5733 }
5734
5735 void
5736 Editor::set_loop_from_edit_range (bool play)
5737 {
5738         if (_session == 0) {
5739                 return;
5740         }
5741
5742         framepos_t start;
5743         framepos_t end;
5744
5745         if (!get_edit_op_range (start, end)) {
5746                 return;
5747         }
5748
5749         set_loop_range (start, end,  _("set loop range from edit range"));
5750
5751         if (play) {
5752                 _session->request_locate (start, true);
5753                 _session->request_play_loop (true);
5754         }
5755 }
5756
5757 void
5758 Editor::set_loop_from_region (bool play)
5759 {
5760         framepos_t start = max_framepos;
5761         framepos_t end = 0;
5762
5763         RegionSelection rs = get_regions_from_selection_and_entered ();
5764
5765         if (rs.empty()) {
5766                 return;
5767         }
5768
5769         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5770                 if ((*i)->region()->position() < start) {
5771                         start = (*i)->region()->position();
5772                 }
5773                 if ((*i)->region()->last_frame() + 1 > end) {
5774                         end = (*i)->region()->last_frame() + 1;
5775                 }
5776         }
5777
5778         set_loop_range (start, end, _("set loop range from region"));
5779
5780         if (play) {
5781                 _session->request_locate (start, true);
5782                 _session->request_play_loop (true);
5783         }
5784 }
5785
5786 void
5787 Editor::set_punch_from_selection ()
5788 {
5789         if (_session == 0 || selection->time.empty()) {
5790                 return;
5791         }
5792
5793         framepos_t start = selection->time[clicked_selection].start;
5794         framepos_t end = selection->time[clicked_selection].end;
5795
5796         set_punch_range (start, end,  _("set punch range from selection"));
5797 }
5798
5799 void
5800 Editor::set_punch_from_edit_range ()
5801 {
5802         if (_session == 0) {
5803                 return;
5804         }
5805
5806         framepos_t start;
5807         framepos_t end;
5808
5809         if (!get_edit_op_range (start, end)) {
5810                 return;
5811         }
5812
5813         set_punch_range (start, end,  _("set punch range from edit range"));
5814 }
5815
5816 void
5817 Editor::set_punch_from_region ()
5818 {
5819         framepos_t start = max_framepos;
5820         framepos_t end = 0;
5821
5822         RegionSelection rs = get_regions_from_selection_and_entered ();
5823
5824         if (rs.empty()) {
5825                 return;
5826         }
5827
5828         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5829                 if ((*i)->region()->position() < start) {
5830                         start = (*i)->region()->position();
5831                 }
5832                 if ((*i)->region()->last_frame() + 1 > end) {
5833                         end = (*i)->region()->last_frame() + 1;
5834                 }
5835         }
5836
5837         set_punch_range (start, end, _("set punch range from region"));
5838 }
5839
5840 void
5841 Editor::pitch_shift_region ()
5842 {
5843         RegionSelection rs = get_regions_from_selection_and_entered ();
5844
5845         RegionSelection audio_rs;
5846         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5847                 if (dynamic_cast<AudioRegionView*> (*i)) {
5848                         audio_rs.push_back (*i);
5849                 }
5850         }
5851
5852         if (audio_rs.empty()) {
5853                 return;
5854         }
5855
5856         pitch_shift (audio_rs, 1.2);
5857 }
5858
5859 void
5860 Editor::transpose_region ()
5861 {
5862         RegionSelection rs = get_regions_from_selection_and_entered ();
5863
5864         list<MidiRegionView*> midi_region_views;
5865         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5866                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*i);
5867                 if (mrv) {
5868                         midi_region_views.push_back (mrv);
5869                 }
5870         }
5871
5872         TransposeDialog d;
5873         int const r = d.run ();
5874         if (r != RESPONSE_ACCEPT) {
5875                 return;
5876         }
5877
5878         for (list<MidiRegionView*>::iterator i = midi_region_views.begin(); i != midi_region_views.end(); ++i) {
5879                 (*i)->midi_region()->transpose (d.semitones ());
5880         }
5881 }
5882
5883 void
5884 Editor::set_tempo_from_region ()
5885 {
5886         RegionSelection rs = get_regions_from_selection_and_entered ();
5887
5888         if (!_session || rs.empty()) {
5889                 return;
5890         }
5891
5892         RegionView* rv = rs.front();
5893
5894         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5895 }
5896
5897 void
5898 Editor::use_range_as_bar ()
5899 {
5900         framepos_t start, end;
5901         if (get_edit_op_range (start, end)) {
5902                 define_one_bar (start, end);
5903         }
5904 }
5905
5906 void
5907 Editor::define_one_bar (framepos_t start, framepos_t end)
5908 {
5909         framepos_t length = end - start;
5910
5911         const Meter& m (_session->tempo_map().meter_at (start));
5912
5913         /* length = 1 bar */
5914
5915         /* now we want frames per beat.
5916            we have frames per bar, and beats per bar, so ...
5917         */
5918
5919         /* XXXX METER MATH */
5920
5921         double frames_per_beat = length / m.divisions_per_bar();
5922
5923         /* beats per minute = */
5924
5925         double beats_per_minute = (_session->frame_rate() * 60.0) / frames_per_beat;
5926
5927         /* now decide whether to:
5928
5929             (a) set global tempo
5930             (b) add a new tempo marker
5931
5932         */
5933
5934         const TempoSection& t (_session->tempo_map().tempo_section_at (start));
5935
5936         bool do_global = false;
5937
5938         if ((_session->tempo_map().n_tempos() == 1) && (_session->tempo_map().n_meters() == 1)) {
5939
5940                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5941                    at the start, or create a new marker
5942                 */
5943
5944                 vector<string> options;
5945                 options.push_back (_("Cancel"));
5946                 options.push_back (_("Add new marker"));
5947                 options.push_back (_("Set global tempo"));
5948
5949                 Choice c (
5950                         _("Define one bar"),
5951                         _("Do you want to set the global tempo or add a new tempo marker?"),
5952                         options
5953                         );
5954
5955                 c.set_default_response (2);
5956
5957                 switch (c.run()) {
5958                 case 0:
5959                         return;
5960
5961                 case 2:
5962                         do_global = true;
5963                         break;
5964
5965                 default:
5966                         do_global = false;
5967                 }
5968
5969         } else {
5970
5971                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5972                    if the marker is at the region starter, change it, otherwise add
5973                    a new tempo marker
5974                 */
5975         }
5976
5977         begin_reversible_command (_("set tempo from region"));
5978         XMLNode& before (_session->tempo_map().get_state());
5979
5980         if (do_global) {
5981                 _session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5982         } else if (t.frame() == start) {
5983                 _session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5984         } else {
5985                 Timecode::BBT_Time bbt;
5986                 _session->tempo_map().bbt_time (start, bbt);
5987                 _session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), bbt);
5988         }
5989
5990         XMLNode& after (_session->tempo_map().get_state());
5991
5992         _session->add_command (new MementoCommand<TempoMap>(_session->tempo_map(), &before, &after));
5993         commit_reversible_command ();
5994 }
5995
5996 void
5997 Editor::split_region_at_transients ()
5998 {
5999         AnalysisFeatureList positions;
6000
6001         RegionSelection rs = get_regions_from_selection_and_entered ();
6002
6003         if (!_session || rs.empty()) {
6004                 return;
6005         }
6006
6007         _session->begin_reversible_command (_("split regions"));
6008
6009         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
6010
6011                 RegionSelection::iterator tmp;
6012
6013                 tmp = i;
6014                 ++tmp;
6015
6016                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
6017
6018                 if (ar && (ar->get_transients (positions) == 0)) {
6019                         split_region_at_points ((*i)->region(), positions, true);
6020                         positions.clear ();
6021                 }
6022
6023                 i = tmp;
6024         }
6025
6026         _session->commit_reversible_command ();
6027
6028 }
6029
6030 void
6031 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret, bool select_new)
6032 {
6033         bool use_rhythmic_rodent = false;
6034
6035         boost::shared_ptr<Playlist> pl = r->playlist();
6036
6037         list<boost::shared_ptr<Region> > new_regions;
6038
6039         if (!pl) {
6040                 return;
6041         }
6042
6043         if (positions.empty()) {
6044                 return;
6045         }
6046
6047
6048         if (positions.size() > 20 && can_ferret) {
6049                 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);
6050                 MessageDialog msg (msgstr,
6051                                    false,
6052                                    Gtk::MESSAGE_INFO,
6053                                    Gtk::BUTTONS_OK_CANCEL);
6054
6055                 if (can_ferret) {
6056                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
6057                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
6058                 } else {
6059                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
6060                 }
6061
6062                 msg.set_title (_("Excessive split?"));
6063                 msg.present ();
6064
6065                 int response = msg.run();
6066                 msg.hide ();
6067
6068                 switch (response) {
6069                 case RESPONSE_OK:
6070                         break;
6071                 case RESPONSE_APPLY:
6072                         use_rhythmic_rodent = true;
6073                         break;
6074                 default:
6075                         return;
6076                 }
6077         }
6078
6079         if (use_rhythmic_rodent) {
6080                 show_rhythm_ferret ();
6081                 return;
6082         }
6083
6084         AnalysisFeatureList::const_iterator x;
6085
6086         pl->clear_changes ();
6087         pl->clear_owned_changes ();
6088
6089         x = positions.begin();
6090
6091         if (x == positions.end()) {
6092                 return;
6093         }
6094
6095         pl->freeze ();
6096         pl->remove_region (r);
6097
6098         framepos_t pos = 0;
6099
6100         while (x != positions.end()) {
6101
6102                 /* deal with positons that are out of scope of present region bounds */
6103                 if (*x <= 0 || *x > r->length()) {
6104                         ++x;
6105                         continue;
6106                 }
6107
6108                 /* file start = original start + how far we from the initial position ?
6109                  */
6110
6111                 framepos_t file_start = r->start() + pos;
6112
6113                 /* length = next position - current position
6114                  */
6115
6116                 framepos_t len = (*x) - pos;
6117
6118                 /* XXX we do we really want to allow even single-sample regions?
6119                    shouldn't we have some kind of lower limit on region size?
6120                 */
6121
6122                 if (len <= 0) {
6123                         break;
6124                 }
6125
6126                 string new_name;
6127
6128                 if (RegionFactory::region_name (new_name, r->name())) {
6129                         break;
6130                 }
6131
6132                 /* do NOT announce new regions 1 by one, just wait till they are all done */
6133
6134                 PropertyList plist;
6135
6136                 plist.add (ARDOUR::Properties::start, file_start);
6137                 plist.add (ARDOUR::Properties::length, len);
6138                 plist.add (ARDOUR::Properties::name, new_name);
6139                 plist.add (ARDOUR::Properties::layer, 0);
6140
6141                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
6142                 /* because we set annouce to false, manually add the new region to the
6143                    RegionFactory map
6144                 */
6145                 RegionFactory::map_add (nr);
6146
6147                 pl->add_region (nr, r->position() + pos);
6148
6149                 if (select_new) {
6150                         new_regions.push_front(nr);
6151                 }
6152
6153                 pos += len;
6154                 ++x;
6155         }
6156
6157         string new_name;
6158
6159         RegionFactory::region_name (new_name, r->name());
6160
6161         /* Add the final region */
6162         PropertyList plist;
6163
6164         plist.add (ARDOUR::Properties::start, r->start() + pos);
6165         plist.add (ARDOUR::Properties::length, r->last_frame() - (r->position() + pos) + 1);
6166         plist.add (ARDOUR::Properties::name, new_name);
6167         plist.add (ARDOUR::Properties::layer, 0);
6168
6169         boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), plist, false);
6170         /* because we set annouce to false, manually add the new region to the
6171            RegionFactory map
6172         */
6173         RegionFactory::map_add (nr);
6174         pl->add_region (nr, r->position() + pos);
6175
6176         if (select_new) {
6177                 new_regions.push_front(nr);
6178         }
6179
6180         pl->thaw ();
6181
6182         /* We might have removed regions, which alters other regions' layering_index,
6183            so we need to do a recursive diff here.
6184         */
6185         vector<Command*> cmds;
6186         pl->rdiff (cmds);
6187         _session->add_commands (cmds);
6188
6189         _session->add_command (new StatefulDiffCommand (pl));
6190
6191         if (select_new) {
6192
6193                 for (list<boost::shared_ptr<Region> >::iterator i = new_regions.begin(); i != new_regions.end(); ++i){
6194                         set_selected_regionview_from_region_list ((*i), Selection::Add);
6195                 }
6196         }
6197 }
6198
6199 void
6200 Editor::place_transient()
6201 {
6202         if (!_session) {
6203                 return;
6204         }
6205
6206         RegionSelection rs = get_regions_from_selection_and_edit_point ();
6207
6208         if (rs.empty()) {
6209                 return;
6210         }
6211
6212         framepos_t where = get_preferred_edit_position();
6213
6214         _session->begin_reversible_command (_("place transient"));
6215
6216         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6217                 framepos_t position = (*r)->region()->position();
6218                 (*r)->region()->add_transient(where - position);
6219         }
6220
6221         _session->commit_reversible_command ();
6222 }
6223
6224 void
6225 Editor::remove_transient(ArdourCanvas::Item* item)
6226 {
6227         if (!_session) {
6228                 return;
6229         }
6230
6231         ArdourCanvas::Line* _line = reinterpret_cast<ArdourCanvas::Line*> (item);
6232         assert (_line);
6233
6234         AudioRegionView* _arv = reinterpret_cast<AudioRegionView*> (item->get_data ("regionview"));
6235         _arv->remove_transient (*(float*) _line->get_data ("position"));
6236 }
6237
6238 void
6239 Editor::snap_regions_to_grid ()
6240 {
6241         list <boost::shared_ptr<Playlist > > used_playlists;
6242
6243         RegionSelection rs = get_regions_from_selection_and_entered ();
6244
6245         if (!_session || rs.empty()) {
6246                 return;
6247         }
6248
6249         _session->begin_reversible_command (_("snap regions to grid"));
6250
6251         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6252
6253                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
6254
6255                 if (!pl->frozen()) {
6256                         /* we haven't seen this playlist before */
6257
6258                         /* remember used playlists so we can thaw them later */
6259                         used_playlists.push_back(pl);
6260                         pl->freeze();
6261                 }
6262
6263                 framepos_t start_frame = (*r)->region()->first_frame ();
6264                 snap_to (start_frame);
6265                 (*r)->region()->set_position (start_frame);
6266         }
6267
6268         while (used_playlists.size() > 0) {
6269                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
6270                 (*i)->thaw();
6271                 used_playlists.pop_front();
6272         }
6273
6274         _session->commit_reversible_command ();
6275 }
6276
6277 void
6278 Editor::close_region_gaps ()
6279 {
6280         list <boost::shared_ptr<Playlist > > used_playlists;
6281
6282         RegionSelection rs = get_regions_from_selection_and_entered ();
6283
6284         if (!_session || rs.empty()) {
6285                 return;
6286         }
6287
6288         Dialog dialog (_("Close Region Gaps"));
6289
6290         Table table (2, 3);
6291         table.set_spacings (12);
6292         table.set_border_width (12);
6293         Label* l = manage (left_aligned_label (_("Crossfade length")));
6294         table.attach (*l, 0, 1, 0, 1);
6295
6296         SpinButton spin_crossfade (1, 0);
6297         spin_crossfade.set_range (0, 15);
6298         spin_crossfade.set_increments (1, 1);
6299         spin_crossfade.set_value (5);
6300         table.attach (spin_crossfade, 1, 2, 0, 1);
6301
6302         table.attach (*manage (new Label (_("ms"))), 2, 3, 0, 1);
6303
6304         l = manage (left_aligned_label (_("Pull-back length")));
6305         table.attach (*l, 0, 1, 1, 2);
6306
6307         SpinButton spin_pullback (1, 0);
6308         spin_pullback.set_range (0, 100);
6309         spin_pullback.set_increments (1, 1);
6310         spin_pullback.set_value(30);
6311         table.attach (spin_pullback, 1, 2, 1, 2);
6312
6313         table.attach (*manage (new Label (_("ms"))), 2, 3, 1, 2);
6314
6315         dialog.get_vbox()->pack_start (table);
6316         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
6317         dialog.add_button (_("Ok"), RESPONSE_ACCEPT);
6318         dialog.show_all ();
6319
6320         if (dialog.run () == RESPONSE_CANCEL) {
6321                 return;
6322         }
6323
6324         framepos_t crossfade_len = spin_crossfade.get_value();
6325         framepos_t pull_back_frames = spin_pullback.get_value();
6326
6327         crossfade_len = lrintf (crossfade_len * _session->frame_rate()/1000);
6328         pull_back_frames = lrintf (pull_back_frames * _session->frame_rate()/1000);
6329
6330         /* Iterate over the region list and make adjacent regions overlap by crossfade_len_ms */
6331
6332         _session->begin_reversible_command (_("close region gaps"));
6333
6334         int idx = 0;
6335         boost::shared_ptr<Region> last_region;
6336
6337         rs.sort_by_position_and_track();
6338
6339         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6340
6341                 boost::shared_ptr<Playlist> pl = (*r)->region()->playlist();
6342
6343                 if (!pl->frozen()) {
6344                         /* we haven't seen this playlist before */
6345
6346                         /* remember used playlists so we can thaw them later */
6347                         used_playlists.push_back(pl);
6348                         pl->freeze();
6349                 }
6350
6351                 framepos_t position = (*r)->region()->position();
6352
6353                 if (idx == 0 || position < last_region->position()){
6354                         last_region = (*r)->region();
6355                         idx++;
6356                         continue;
6357                 }
6358
6359                 (*r)->region()->trim_front( (position - pull_back_frames));
6360                 last_region->trim_end( (position - pull_back_frames + crossfade_len));
6361
6362                 last_region = (*r)->region();
6363
6364                 idx++;
6365         }
6366
6367         while (used_playlists.size() > 0) {
6368                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
6369                 (*i)->thaw();
6370                 used_playlists.pop_front();
6371         }
6372
6373         _session->commit_reversible_command ();
6374 }
6375
6376 void
6377 Editor::tab_to_transient (bool forward)
6378 {
6379         AnalysisFeatureList positions;
6380
6381         RegionSelection rs = get_regions_from_selection_and_entered ();
6382
6383         if (!_session) {
6384                 return;
6385         }
6386
6387         framepos_t pos = _session->audible_frame ();
6388
6389         if (!selection->tracks.empty()) {
6390
6391                 /* don't waste time searching for transients in duplicate playlists.
6392                  */
6393
6394                 TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6395
6396                 for (TrackViewList::iterator t = ts.begin(); t != ts.end(); ++t) {
6397
6398                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6399
6400                         if (rtv) {
6401                                 boost::shared_ptr<Track> tr = rtv->track();
6402                                 if (tr) {
6403                                         boost::shared_ptr<Playlist> pl = tr->playlist ();
6404                                         if (pl) {
6405                                                 framepos_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6406
6407                                                 if (result >= 0) {
6408                                                         positions.push_back (result);
6409                                                 }
6410                                         }
6411                                 }
6412                         }
6413                 }
6414
6415         } else {
6416
6417                 if (rs.empty()) {
6418                         return;
6419                 }
6420
6421                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6422                         (*r)->region()->get_transients (positions);
6423                 }
6424         }
6425
6426         TransientDetector::cleanup_transients (positions, _session->frame_rate(), 3.0);
6427
6428         if (forward) {
6429                 AnalysisFeatureList::iterator x;
6430
6431                 for (x = positions.begin(); x != positions.end(); ++x) {
6432                         if ((*x) > pos) {
6433                                 break;
6434                         }
6435                 }
6436
6437                 if (x != positions.end ()) {
6438                         _session->request_locate (*x);
6439                 }
6440
6441         } else {
6442                 AnalysisFeatureList::reverse_iterator x;
6443
6444                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6445                         if ((*x) < pos) {
6446                                 break;
6447                         }
6448                 }
6449
6450                 if (x != positions.rend ()) {
6451                         _session->request_locate (*x);
6452                 }
6453         }
6454 }
6455
6456 void
6457 Editor::playhead_forward_to_grid ()
6458 {
6459         if (!_session) {
6460                 return;
6461         }
6462
6463         framepos_t pos = playhead_cursor->current_frame ();
6464         if (pos < max_framepos - 1) {
6465                 pos += 2;
6466                 snap_to_internal (pos, RoundUpAlways, false);
6467                 _session->request_locate (pos);
6468         }
6469 }
6470
6471
6472 void
6473 Editor::playhead_backward_to_grid ()
6474 {
6475         if (!_session) {
6476                 return;
6477         }
6478
6479         framepos_t pos = playhead_cursor->current_frame ();
6480         if (pos > 2) {
6481                 pos -= 2;
6482                 snap_to_internal (pos, RoundDownAlways, false);
6483                 _session->request_locate (pos);
6484         }
6485 }
6486
6487 void
6488 Editor::set_track_height (Height h)
6489 {
6490         TrackSelection& ts (selection->tracks);
6491
6492         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6493                 (*x)->set_height_enum (h);
6494         }
6495 }
6496
6497 void
6498 Editor::toggle_tracks_active ()
6499 {
6500         TrackSelection& ts (selection->tracks);
6501         bool first = true;
6502         bool target = false;
6503
6504         if (ts.empty()) {
6505                 return;
6506         }
6507
6508         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6509                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6510
6511                 if (rtv) {
6512                         if (first) {
6513                                 target = !rtv->_route->active();
6514                                 first = false;
6515                         }
6516                         rtv->_route->set_active (target, this);
6517                 }
6518         }
6519 }
6520
6521 void
6522 Editor::remove_tracks ()
6523 {
6524         TrackSelection& ts (selection->tracks);
6525
6526         if (ts.empty()) {
6527                 return;
6528         }
6529
6530         vector<string> choices;
6531         string prompt;
6532         int ntracks = 0;
6533         int nbusses = 0;
6534         const char* trackstr;
6535         const char* busstr;
6536         vector<boost::shared_ptr<Route> > routes;
6537         bool special_bus = false;
6538
6539         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6540                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6541                 if (!rtv) {
6542                         continue;
6543                 }
6544                 if (rtv->is_track()) {
6545                         ntracks++;
6546                 } else {
6547                         nbusses++;
6548                 }
6549                 routes.push_back (rtv->_route);
6550
6551                 if (rtv->route()->is_master() || rtv->route()->is_monitor()) {
6552                         special_bus = true;
6553                 }
6554         }
6555
6556         if (special_bus && !Config->get_allow_special_bus_removal()) {
6557                 MessageDialog msg (_("That would be bad news ...."),
6558                                    false,
6559                                    Gtk::MESSAGE_INFO,
6560                                    Gtk::BUTTONS_OK);
6561                 msg.set_secondary_text (string_compose (_(
6562                                                                 "Removing the master or monitor bus is such a bad idea\n\
6563 that %1 is not going to allow it.\n\
6564 \n\
6565 If you really want to do this sort of thing\n\
6566 edit your ardour.rc file to set the\n\
6567 \"allow-special-bus-removal\" option to be \"yes\""), PROGRAM_NAME));
6568
6569                 msg.present ();
6570                 msg.run ();
6571                 return;
6572         }
6573
6574         if (ntracks + nbusses == 0) {
6575                 return;
6576         }
6577
6578         // XXX should be using gettext plural forms, maybe?
6579         if (ntracks > 1) {
6580                 trackstr = _("tracks");
6581         } else {
6582                 trackstr = _("track");
6583         }
6584
6585         if (nbusses > 1) {
6586                 busstr = _("busses");
6587         } else {
6588                 busstr = _("bus");
6589         }
6590
6591         if (ntracks) {
6592                 if (nbusses) {
6593                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6594                                                     "(You may also lose the playlists associated with the %2)\n\n"
6595                                                     "This action cannot be undone, and the session file will be overwritten!"),
6596                                                   ntracks, trackstr, nbusses, busstr);
6597                 } else {
6598                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6599                                                     "(You may also lose the playlists associated with the %2)\n\n"
6600                                                     "This action cannot be undone, and the session file will be overwritten!"),
6601                                                   ntracks, trackstr);
6602                 }
6603         } else if (nbusses) {
6604                 prompt  = string_compose (_("Do you really want to remove %1 %2?\n\n"
6605                                             "This action cannot be undone, and the session file will be overwritten"),
6606                                           nbusses, busstr);
6607         }
6608
6609         choices.push_back (_("No, do nothing."));
6610         if (ntracks + nbusses > 1) {
6611                 choices.push_back (_("Yes, remove them."));
6612         } else {
6613                 choices.push_back (_("Yes, remove it."));
6614         }
6615
6616         string title;
6617         if (ntracks) {
6618                 title = string_compose (_("Remove %1"), trackstr);
6619         } else {
6620                 title = string_compose (_("Remove %1"), busstr);
6621         }
6622
6623         Choice prompter (title, prompt, choices);
6624
6625         if (prompter.run () != 1) {
6626                 return;
6627         }
6628
6629         {
6630                 Session::StateProtector sp (_session);
6631                 DisplaySuspender ds;
6632                 for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6633                         _session->remove_route (*x);
6634                 }
6635         }
6636 }
6637
6638 void
6639 Editor::do_insert_time ()
6640 {
6641         if (selection->tracks.empty()) {
6642                 return;
6643         }
6644
6645         InsertTimeDialog d (*this);
6646         int response = d.run ();
6647
6648         if (response != RESPONSE_OK) {
6649                 return;
6650         }
6651
6652         if (d.distance() == 0) {
6653                 return;
6654         }
6655
6656         InsertTimeOption opt = d.intersected_region_action ();
6657
6658         insert_time (
6659                 get_preferred_edit_position(),
6660                 d.distance(),
6661                 opt,
6662                 d.all_playlists(),
6663                 d.move_glued(),
6664                 d.move_markers(),
6665                 d.move_glued_markers(),
6666                 d.move_locked_markers(),
6667                 d.move_tempos()
6668                 );
6669 }
6670
6671 void
6672 Editor::insert_time (
6673         framepos_t pos, framecnt_t frames, InsertTimeOption opt,
6674         bool all_playlists, bool ignore_music_glue, bool markers_too, bool glued_markers_too, bool locked_markers_too, bool tempo_too
6675         )
6676 {
6677         bool commit = false;
6678
6679         if (Config->get_edit_mode() == Lock) {
6680                 return;
6681         }
6682
6683         begin_reversible_command (_("insert time"));
6684
6685         TrackViewList ts = selection->tracks.filter_to_unique_playlists ();
6686
6687         for (TrackViewList::iterator x = ts.begin(); x != ts.end(); ++x) {
6688
6689                 /* regions */
6690
6691                 /* don't operate on any playlist more than once, which could
6692                  * happen if "all playlists" is enabled, but there is more
6693                  * than 1 track using playlists "from" a given track.
6694                  */
6695
6696                 set<boost::shared_ptr<Playlist> > pl;
6697
6698                 if (all_playlists) {
6699                         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6700                         if (rtav) {
6701                                 vector<boost::shared_ptr<Playlist> > all = _session->playlists->playlists_for_track (rtav->track ());
6702                                 for (vector<boost::shared_ptr<Playlist> >::iterator p = all.begin(); p != all.end(); ++p) {
6703                                         pl.insert (*p);
6704                                 }
6705                         }
6706                 } else {
6707                         if ((*x)->playlist ()) {
6708                                 pl.insert ((*x)->playlist ());
6709                         }
6710                 }
6711
6712                 for (set<boost::shared_ptr<Playlist> >::iterator i = pl.begin(); i != pl.end(); ++i) {
6713
6714                         (*i)->clear_changes ();
6715                         (*i)->clear_owned_changes ();
6716
6717                         if (opt == SplitIntersected) {
6718                                 (*i)->split (pos);
6719                         }
6720
6721                         (*i)->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6722
6723                         vector<Command*> cmds;
6724                         (*i)->rdiff (cmds);
6725                         _session->add_commands (cmds);
6726
6727                         _session->add_command (new StatefulDiffCommand (*i));
6728                         commit = true;
6729                 }
6730
6731                 /* automation */
6732                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6733                 if (rtav) {
6734                         rtav->route ()->shift (pos, frames);
6735                         commit = true;
6736                 }
6737         }
6738
6739         /* markers */
6740         if (markers_too) {
6741                 bool moved = false;
6742                 XMLNode& before (_session->locations()->get_state());
6743                 Locations::LocationList copy (_session->locations()->list());
6744
6745                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6746
6747                         Locations::LocationList::const_iterator tmp;
6748
6749                         bool const was_locked = (*i)->locked ();
6750                         if (locked_markers_too) {
6751                                 (*i)->unlock ();
6752                         }
6753
6754                         if ((*i)->position_lock_style() == AudioTime || glued_markers_too) {
6755
6756                                 if ((*i)->start() >= pos) {
6757                                         (*i)->set_start ((*i)->start() + frames);
6758                                         if (!(*i)->is_mark()) {
6759                                                 (*i)->set_end ((*i)->end() + frames);
6760                                         }
6761                                         moved = true;
6762                                 }
6763
6764                         }
6765
6766                         if (was_locked) {
6767                                 (*i)->lock ();
6768                         }
6769                 }
6770
6771                 if (moved) {
6772                         XMLNode& after (_session->locations()->get_state());
6773                         _session->add_command (new MementoCommand<Locations>(*_session->locations(), &before, &after));
6774                 }
6775         }
6776
6777         if (tempo_too) {
6778                 _session->tempo_map().insert_time (pos, frames);
6779         }
6780
6781         if (commit) {
6782                 commit_reversible_command ();
6783         }
6784 }
6785
6786 void
6787 Editor::fit_selected_tracks ()
6788 {
6789         if (!selection->tracks.empty()) {
6790                 fit_tracks (selection->tracks);
6791         } else {
6792                 TrackViewList tvl;
6793
6794                 /* no selected tracks - use tracks with selected regions */
6795
6796                 if (!selection->regions.empty()) {
6797                         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
6798                                 tvl.push_back (&(*r)->get_time_axis_view ());
6799                         }
6800
6801                         if (!tvl.empty()) {
6802                                 fit_tracks (tvl);
6803                         }
6804                 } else if (internal_editing()) {
6805                         /* no selected tracks, or regions, but in internal edit mode, so follow the mouse and use
6806                            the entered track
6807                         */
6808                         if (entered_track) {
6809                                 tvl.push_back (entered_track);
6810                                 fit_tracks (tvl);
6811                         }
6812                 }
6813         }
6814
6815 }
6816
6817 void
6818 Editor::fit_tracks (TrackViewList & tracks)
6819 {
6820         if (tracks.empty()) {
6821                 return;
6822         }
6823
6824         uint32_t child_heights = 0;
6825         int visible_tracks = 0;
6826
6827         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6828
6829                 if (!(*t)->marked_for_display()) {
6830                         continue;
6831                 }
6832
6833                 child_heights += (*t)->effective_height() - (*t)->current_height();
6834                 ++visible_tracks;
6835         }
6836
6837         /* compute the per-track height from:
6838
6839            total canvas visible height -
6840                  height that will be taken by visible children of selected
6841                  tracks - height of the ruler/hscroll area
6842         */
6843         uint32_t h = (uint32_t) floor ((trackviews_height() - child_heights) / visible_tracks);
6844         double first_y_pos = DBL_MAX;
6845
6846         if (h < TimeAxisView::preset_height (HeightSmall)) {
6847                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6848                 /* too small to be displayed */
6849                 return;
6850         }
6851
6852         undo_visual_stack.push_back (current_visual_state (true));
6853         no_save_visual = true;
6854
6855         /* build a list of all tracks, including children */
6856
6857         TrackViewList all;
6858         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
6859                 all.push_back (*i);
6860                 TimeAxisView::Children c = (*i)->get_child_list ();
6861                 for (TimeAxisView::Children::iterator j = c.begin(); j != c.end(); ++j) {
6862                         all.push_back (j->get());
6863                 }
6864         }
6865
6866         bool prev_was_selected = false;
6867         bool is_selected = tracks.contains (all.front());
6868         bool next_is_selected;
6869
6870         for (TrackViewList::iterator t = all.begin(); t != all.end(); ++t) {
6871
6872                 TrackViewList::iterator next;
6873
6874                 next = t;
6875                 ++next;
6876
6877                 if (next != all.end()) {
6878                         next_is_selected = tracks.contains (*next);
6879                 } else {
6880                         next_is_selected = false;
6881                 }
6882
6883                 if ((*t)->marked_for_display ()) {
6884                         if (is_selected) {
6885                                 (*t)->set_height (h);
6886                                 first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6887                         } else {
6888                                 if (prev_was_selected && next_is_selected) {
6889                                         hide_track_in_display (*t);
6890                                 }
6891                         }
6892                 }
6893
6894                 prev_was_selected = is_selected;
6895                 is_selected = next_is_selected;
6896         }
6897
6898         /*
6899            set the controls_layout height now, because waiting for its size
6900            request signal handler will cause the vertical adjustment setting to fail
6901         */
6902
6903         controls_layout.property_height () = _full_canvas_height;
6904         vertical_adjustment.set_value (first_y_pos);
6905
6906         redo_visual_stack.push_back (current_visual_state (true));
6907
6908         visible_tracks_selector.set_text (_("Sel"));
6909 }
6910
6911 void
6912 Editor::save_visual_state (uint32_t n)
6913 {
6914         while (visual_states.size() <= n) {
6915                 visual_states.push_back (0);
6916         }
6917
6918         if (visual_states[n] != 0) {
6919                 delete visual_states[n];
6920         }
6921
6922         visual_states[n] = current_visual_state (true);
6923         gdk_beep ();
6924 }
6925
6926 void
6927 Editor::goto_visual_state (uint32_t n)
6928 {
6929         if (visual_states.size() <= n) {
6930                 return;
6931         }
6932
6933         if (visual_states[n] == 0) {
6934                 return;
6935         }
6936
6937         use_visual_state (*visual_states[n]);
6938 }
6939
6940 void
6941 Editor::start_visual_state_op (uint32_t n)
6942 {
6943         save_visual_state (n);
6944
6945         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6946         char buf[32];
6947         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6948         pup->set_text (buf);
6949         pup->touch();
6950 }
6951
6952 void
6953 Editor::cancel_visual_state_op (uint32_t n)
6954 {
6955         goto_visual_state (n);
6956 }
6957
6958 void
6959 Editor::toggle_region_mute ()
6960 {
6961         if (_ignore_region_action) {
6962                 return;
6963         }
6964
6965         RegionSelection rs = get_regions_from_selection_and_entered ();
6966
6967         if (rs.empty ()) {
6968                 return;
6969         }
6970
6971         if (rs.size() > 1) {
6972                 begin_reversible_command (_("mute regions"));
6973         } else {
6974                 begin_reversible_command (_("mute region"));
6975         }
6976
6977         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
6978
6979                 (*i)->region()->playlist()->clear_changes ();
6980                 (*i)->region()->set_muted (!(*i)->region()->muted ());
6981                 _session->add_command (new StatefulDiffCommand ((*i)->region()->playlist()));
6982
6983         }
6984
6985         commit_reversible_command ();
6986 }
6987
6988 void
6989 Editor::combine_regions ()
6990 {
6991         /* foreach track with selected regions, take all selected regions
6992            and join them into a new region containing the subregions (as a
6993            playlist)
6994         */
6995
6996         typedef set<RouteTimeAxisView*> RTVS;
6997         RTVS tracks;
6998
6999         if (selection->regions.empty()) {
7000                 return;
7001         }
7002
7003         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
7004                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
7005
7006                 if (rtv) {
7007                         tracks.insert (rtv);
7008                 }
7009         }
7010
7011         begin_reversible_command (_("combine regions"));
7012
7013         vector<RegionView*> new_selection;
7014
7015         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
7016                 RegionView* rv;
7017
7018                 if ((rv = (*i)->combine_regions ()) != 0) {
7019                         new_selection.push_back (rv);
7020                 }
7021         }
7022
7023         selection->clear_regions ();
7024         for (vector<RegionView*>::iterator i = new_selection.begin(); i != new_selection.end(); ++i) {
7025                 selection->add (*i);
7026         }
7027
7028         commit_reversible_command ();
7029 }
7030
7031 void
7032 Editor::uncombine_regions ()
7033 {
7034         typedef set<RouteTimeAxisView*> RTVS;
7035         RTVS tracks;
7036
7037         if (selection->regions.empty()) {
7038                 return;
7039         }
7040
7041         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
7042                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
7043
7044                 if (rtv) {
7045                         tracks.insert (rtv);
7046                 }
7047         }
7048
7049         begin_reversible_command (_("uncombine regions"));
7050
7051         for (RTVS::iterator i = tracks.begin(); i != tracks.end(); ++i) {
7052                 (*i)->uncombine_regions ();
7053         }
7054
7055         commit_reversible_command ();
7056 }
7057
7058 void
7059 Editor::toggle_midi_input_active (bool flip_others)
7060 {
7061         bool onoff = false;
7062         boost::shared_ptr<RouteList> rl (new RouteList);
7063
7064         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
7065                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
7066
7067                 if (!rtav) {
7068                         continue;
7069                 }
7070
7071                 boost::shared_ptr<MidiTrack> mt = rtav->midi_track();
7072
7073                 if (mt) {
7074                         rl->push_back (rtav->route());
7075                         onoff = !mt->input_active();
7076                 }
7077         }
7078
7079         _session->set_exclusive_input_active (rl, onoff, flip_others);
7080 }
7081
7082 void
7083 Editor::lock ()
7084 {
7085         if (!lock_dialog) {
7086                 lock_dialog = new Gtk::Dialog (string_compose (_("%1: Locked"), PROGRAM_NAME), true);
7087
7088                 Gtk::Image* padlock = manage (new Gtk::Image (ARDOUR_UI_UTILS::get_icon ("padlock_closed")));
7089                 lock_dialog->get_vbox()->pack_start (*padlock);
7090
7091                 ArdourButton* b = manage (new ArdourButton);
7092                 b->set_name ("lock button");
7093                 b->set_text (_("Click to unlock"));
7094                 b->signal_clicked.connect (sigc::mem_fun (*this, &Editor::unlock));
7095                 lock_dialog->get_vbox()->pack_start (*b);
7096
7097                 lock_dialog->get_vbox()->show_all ();
7098                 lock_dialog->set_size_request (200, 200);
7099         }
7100
7101 #ifdef __APPLE__
7102         /* The global menu bar continues to be accessible to applications
7103            with modal dialogs, which means that we need to desensitize
7104            all items in the menu bar. Since those items are really just
7105            proxies for actions, that means disabling all actions.
7106         */
7107         ActionManager::disable_all_actions ();
7108 #endif
7109         lock_dialog->present ();
7110 }
7111
7112 void
7113 Editor::unlock ()
7114 {
7115         lock_dialog->hide ();
7116
7117 #ifdef __APPLE__
7118         ActionManager::pop_action_state ();
7119 #endif
7120
7121         if (ARDOUR_UI::config()->get_lock_gui_after_seconds()) {
7122                 start_lock_event_timing ();
7123         }
7124 }
7125
7126 void
7127 Editor::bring_in_callback (Gtk::Label* label, uint32_t n, uint32_t total, string name)
7128 {
7129         Gtkmm2ext::UI::instance()->call_slot (invalidator (*this), boost::bind (&Editor::update_bring_in_message, this, label, n, total, name));
7130 }
7131
7132 void
7133 Editor::update_bring_in_message (Gtk::Label* label, uint32_t n, uint32_t total, string name)
7134 {
7135         label->set_text (string_compose ("Copying %1, %2 of %3", name, n, total));
7136         Gtkmm2ext::UI::instance()->flush_pending ();
7137 }
7138
7139 void
7140 Editor::bring_all_sources_into_session ()
7141 {
7142         if (!_session) {
7143                 return;
7144         }
7145
7146         Gtk::Label msg;
7147         ArdourDialog w (_("Moving embedded files into session folder"));
7148         w.get_vbox()->pack_start (msg);
7149         w.present ();
7150
7151         /* flush all pending GUI events because we're about to start copying
7152          * files
7153          */
7154
7155         Gtkmm2ext::UI::instance()->flush_pending ();
7156
7157         cerr << " Do it\n";
7158
7159         _session->bring_all_sources_into_session (boost::bind (&Editor::bring_in_callback, this, &msg, _1, _2, _3));
7160 }