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