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/whitespace.h"
  35
  36 #include <gtkmm2ext/utils.h>
  37 #include <gtkmm2ext/choice.h>
  38 #include <gtkmm2ext/popup.h>
  39
  40 #include "ardour/audioengine.h"
  41 #include "ardour/session.h"
  42 #include "ardour/audioplaylist.h"
  43 #include "ardour/audioregion.h"
  44 #include "ardour/audio_diskstream.h"
  45 #include "ardour/utils.h"
  46 #include "ardour/location.h"
  47 #include "ardour/audio_track.h"
  48 #include "ardour/audioplaylist.h"
  49 #include "ardour/region_factory.h"
  50 #include "ardour/playlist_factory.h"
  51 #include "ardour/reverse.h"
  52 #include "ardour/transient_detector.h"
  53 #include "ardour/dB.h"
  54 #include "ardour/quantize.h"
  55 #include "ardour/strip_silence.h"
  56 #include "ardour/route_group.h"
  57
  58 #include "ardour_ui.h"
  59 #include "editor.h"
  60 #include "time_axis_view.h"
  61 #include "route_time_axis.h"
  62 #include "audio_time_axis.h"
  63 #include "automation_time_axis.h"
  64 #include "streamview.h"
  65 #include "audio_streamview.h"
  66 #include "audio_region_view.h"
  67 #include "midi_region_view.h"
  68 #include "rgb_macros.h"
  69 #include "selection_templates.h"
  70 #include "selection.h"
  71 #include "editing.h"
  72 #include "gtk-custom-hruler.h"
  73 #include "gui_thread.h"
  74 #include "keyboard.h"
  75 #include "utils.h"
  76 #include "editor_drag.h"
  77 #include "strip_silence_dialog.h"
  78 #include "editor_routes.h"
  79 #include "editor_regions.h"
  80 #include "quantize_dialog.h"
  81
  82 #include "i18n.h"
  83
  84 using namespace std;
  85 using namespace ARDOUR;
  86 using namespace PBD;
  87 using namespace sigc;
  88 using namespace Gtk;
  89 using namespace Gtkmm2ext;
  90 using namespace Editing;
  91
  92 /***********************************************************************
  93   Editor operations
  94  ***********************************************************************/
  95
  96 void
  97 Editor::undo (uint32_t n)
  98 {
  99         if (session) {
 100                 session->undo (n);
 101         }
 102 }
 103
 104 void
 105 Editor::redo (uint32_t n)
 106 {
 107         if (session) {
 108                 session->redo (n);
 109         }
 110 }
 111
 112 void
 113 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 114 {
 115         list <boost::shared_ptr<Playlist > > used_playlists;
 116
 117         if (regions.empty()) {
 118                 return;
 119         }
 120
 121         begin_reversible_command (_("split"));
 122
 123         // if splitting a single region, and snap-to is using
 124         // region boundaries, don't pay attention to them
 125
 126         if (regions.size() == 1) {
 127                 switch (_snap_type) {
 128                 case SnapToRegionStart:
 129                 case SnapToRegionSync:
 130                 case SnapToRegionEnd:
 131                         break;
 132                 default:
 133                         snap_to (where);
 134                 }
 135         } else {
 136                 snap_to (where);
 137         }
 138
 139         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 140
 141                 RegionSelection::iterator tmp;
 142
 143                 /* XXX this test needs to be more complicated, to make sure we really
 144                    have something to split.
 145                 */
 146
 147                 if (!(*a)->region()->covers (where)) {
 148                         ++a;
 149                         continue;
 150                 }
 151
 152                 tmp = a;
 153                 ++tmp;
 154
 155                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 156
 157                 if (! pl->frozen()) {
 158                         /* we haven't seen this playlist before */
 159
 160                         /* remember used playlists so we can thaw them later */
 161                         used_playlists.push_back(pl);
 162                         pl->freeze();
 163                 }
 164
 165                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 166                 if (arv) {
 167                         _new_regionviews_show_envelope = arv->envelope_visible();
 168                 }
 169
 170                 if (pl) {
 171                         XMLNode &before = pl->get_state();
 172                         pl->split_region ((*a)->region(), where);
 173                         XMLNode &after = pl->get_state();
 174                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 175                 }
 176
 177                 a = tmp;
 178         }
 179
 180         while (used_playlists.size() > 0) {
 181                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 182                 (*i)->thaw();
 183                 used_playlists.pop_front();
 184         }
 185
 186         commit_reversible_command ();
 187         _new_regionviews_show_envelope = false;
 188 }
 189
 190 boost::shared_ptr<Region>
 191 Editor::select_region_for_operation (int /*dir*/, TimeAxisView **tv)
 192 {
 193         RegionView* rv;
 194         boost::shared_ptr<Region> region;
 195         nframes64_t start = 0;
 196
 197         if (selection->time.start () == selection->time.end_frame ()) {
 198
 199                 /* no current selection-> is there a selected regionview? */
 200
 201                 if (selection->regions.empty()) {
 202                         return region;
 203                 }
 204
 205         }
 206
 207         if (!selection->regions.empty()) {
 208
 209                 rv = *(selection->regions.begin());
 210                 (*tv) = &rv->get_time_axis_view();
 211                 region = rv->region();
 212
 213         } else if (!selection->tracks.empty()) {
 214
 215                 (*tv) = selection->tracks.front();
 216
 217                 RouteTimeAxisView* rtv;
 218
 219                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 220                         boost::shared_ptr<Playlist> pl;
 221
 222                         if ((pl = rtv->playlist()) == 0) {
 223                                 return region;
 224                         }
 225
 226                         region = pl->top_region_at (start);
 227                 }
 228         }
 229
 230         return region;
 231 }
 232
 233 void
 234 Editor::extend_selection_to_end_of_region (bool next)
 235 {
 236         TimeAxisView *tv;
 237         boost::shared_ptr<Region> region;
 238         nframes64_t start;
 239
 240         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 241                 return;
 242         }
 243
 244         if (region && selection->time.start () == selection->time.end_frame ()) {
 245                 start = region->position();
 246         } else {
 247                 start = selection->time.start ();
 248         }
 249
 250         /* Try to leave the selection with the same route if possible */
 251
 252         if ((tv = selection->time.track) == 0) {
 253                 return;
 254         }
 255
 256         begin_reversible_command (_("extend selection"));
 257         selection->set (tv, start, region->position() + region->length());
 258         commit_reversible_command ();
 259 }
 260
 261 void
 262 Editor::extend_selection_to_start_of_region (bool previous)
 263 {
 264         TimeAxisView *tv;
 265         boost::shared_ptr<Region> region;
 266         nframes64_t end;
 267
 268         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 269                 return;
 270         }
 271
 272         if (region && selection->time.start () == selection->time.end_frame ()) {
 273                 end = region->position() + region->length();
 274         } else {
 275                 end = selection->time.end_frame ();
 276         }
 277
 278         /* Try to leave the selection with the same route if possible */
 279
 280         if ((tv = selection->time.track) == 0) {
 281                 return;
 282         }
 283
 284         begin_reversible_command (_("extend selection"));
 285         selection->set (tv, region->position(), end);
 286         commit_reversible_command ();
 287 }
 288
 289 bool
 290 Editor::nudge_forward_release (GdkEventButton* ev)
 291 {
 292         if (ev->state & Keyboard::PrimaryModifier) {
 293                 nudge_forward (false, true);
 294         } else {
 295                 nudge_forward (false, false);
 296         }
 297         return false;
 298 }
 299
 300 bool
 301 Editor::nudge_backward_release (GdkEventButton* ev)
 302 {
 303         if (ev->state & Keyboard::PrimaryModifier) {
 304                 nudge_backward (false, true);
 305         } else {
 306                 nudge_backward (false, false);
 307         }
 308         return false;
 309 }
 310
 311
 312 void
 313 Editor::nudge_forward (bool next, bool force_playhead)
 314 {
 315         nframes64_t distance;
 316         nframes64_t next_distance;
 317         RegionSelection rs;
 318
 319         get_regions_for_action (rs);
 320
 321         if (!session) return;
 322
 323         if (!force_playhead && !rs.empty()) {
 324
 325                 begin_reversible_command (_("nudge regions forward"));
 326
 327                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 328                         boost::shared_ptr<Region> r ((*i)->region());
 329
 330                         distance = get_nudge_distance (r->position(), next_distance);
 331
 332                         if (next) {
 333                                 distance = next_distance;
 334                         }
 335
 336                         XMLNode &before = r->playlist()->get_state();
 337                         r->set_position (r->position() + distance, this);
 338                         XMLNode &after = r->playlist()->get_state();
 339                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 340                 }
 341
 342                 commit_reversible_command ();
 343
 344
 345         } else if (!force_playhead && !selection->markers.empty()) {
 346
 347                 bool is_start;
 348
 349                 begin_reversible_command (_("nudge location forward"));
 350
 351                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 352
 353                         Location* loc = find_location_from_marker ((*i), is_start);
 354
 355                         if (loc) {
 356
 357                                 XMLNode& before (loc->get_state());
 358
 359                                 if (is_start) {
 360                                         distance = get_nudge_distance (loc->start(), next_distance);
 361                                         if (next) {
 362                                                 distance = next_distance;
 363                                         }
 364                                         if (max_frames - distance > loc->start() + loc->length()) {
 365                                                 loc->set_start (loc->start() + distance);
 366                                         } else {
 367                                                 loc->set_start (max_frames - loc->length());
 368                                         }
 369                                 } else {
 370                                         distance = get_nudge_distance (loc->end(), next_distance);
 371                                         if (next) {
 372                                                 distance = next_distance;
 373                                         }
 374                                         if (max_frames - distance > loc->end()) {
 375                                                 loc->set_end (loc->end() + distance);
 376                                         } else {
 377                                                 loc->set_end (max_frames);
 378                                         }
 379                                 }
 380                                 XMLNode& after (loc->get_state());
 381                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 382                         }
 383                 }
 384
 385                 commit_reversible_command ();
 386
 387         } else {
 388                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 389                 session->request_locate (playhead_cursor->current_frame + distance);
 390         }
 391 }
 392
 393 void
 394 Editor::nudge_backward (bool next, bool force_playhead)
 395 {
 396         nframes64_t distance;
 397         nframes64_t next_distance;
 398         RegionSelection rs;
 399
 400         get_regions_for_action (rs);
 401
 402         if (!session) return;
 403
 404         if (!force_playhead && !rs.empty()) {
 405
 406                 begin_reversible_command (_("nudge regions backward"));
 407
 408                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 409                         boost::shared_ptr<Region> r ((*i)->region());
 410
 411                         distance = get_nudge_distance (r->position(), next_distance);
 412
 413                         if (next) {
 414                                 distance = next_distance;
 415                         }
 416
 417                         XMLNode &before = r->playlist()->get_state();
 418
 419                         if (r->position() > distance) {
 420                                 r->set_position (r->position() - distance, this);
 421                         } else {
 422                                 r->set_position (0, this);
 423                         }
 424                         XMLNode &after = r->playlist()->get_state();
 425                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 426                 }
 427
 428                 commit_reversible_command ();
 429
 430         } else if (!force_playhead && !selection->markers.empty()) {
 431
 432                 bool is_start;
 433
 434                 begin_reversible_command (_("nudge location forward"));
 435
 436                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 437
 438                         Location* loc = find_location_from_marker ((*i), is_start);
 439
 440                         if (loc) {
 441
 442                                 XMLNode& before (loc->get_state());
 443
 444                                 if (is_start) {
 445                                         distance = get_nudge_distance (loc->start(), next_distance);
 446                                         if (next) {
 447                                                 distance = next_distance;
 448                                         }
 449                                         if (distance < loc->start()) {
 450                                                 loc->set_start (loc->start() - distance);
 451                                         } else {
 452                                                 loc->set_start (0);
 453                                         }
 454                                 } else {
 455                                         distance = get_nudge_distance (loc->end(), next_distance);
 456
 457                                         if (next) {
 458                                                 distance = next_distance;
 459                                         }
 460
 461                                         if (distance < loc->end() - loc->length()) {
 462                                                 loc->set_end (loc->end() - distance);
 463                                         } else {
 464                                                 loc->set_end (loc->length());
 465                                         }
 466                                 }
 467
 468                                 XMLNode& after (loc->get_state());
 469                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 470                         }
 471                 }
 472
 473                 commit_reversible_command ();
 474
 475         } else {
 476
 477                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 478
 479                 if (playhead_cursor->current_frame > distance) {
 480                         session->request_locate (playhead_cursor->current_frame - distance);
 481                 } else {
 482                         session->goto_start();
 483                 }
 484         }
 485 }
 486
 487 void
 488 Editor::nudge_forward_capture_offset ()
 489 {
 490         nframes64_t distance;
 491         RegionSelection rs;
 492
 493         get_regions_for_action (rs);
 494
 495         if (!session) return;
 496
 497         if (!rs.empty()) {
 498
 499                 begin_reversible_command (_("nudge forward"));
 500
 501                 distance = session->worst_output_latency();
 502
 503                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 504                         boost::shared_ptr<Region> r ((*i)->region());
 505
 506                         XMLNode &before = r->playlist()->get_state();
 507                         r->set_position (r->position() + distance, this);
 508                         XMLNode &after = r->playlist()->get_state();
 509                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 510                 }
 511
 512                 commit_reversible_command ();
 513
 514         }
 515 }
 516
 517 void
 518 Editor::nudge_backward_capture_offset ()
 519 {
 520         nframes64_t distance;
 521         RegionSelection rs;
 522
 523         get_regions_for_action (rs);
 524
 525         if (!session) return;
 526
 527         if (!rs.empty()) {
 528
 529                 begin_reversible_command (_("nudge forward"));
 530
 531                 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                         XMLNode &before = r->playlist()->get_state();
 537
 538                         if (r->position() > distance) {
 539                                 r->set_position (r->position() - distance, this);
 540                         } else {
 541                                 r->set_position (0, this);
 542                         }
 543                         XMLNode &after = r->playlist()->get_state();
 544                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 545                 }
 546
 547                 commit_reversible_command ();
 548         }
 549 }
 550
 551 /* DISPLAY MOTION */
 552
 553 void
 554 Editor::move_to_start ()
 555 {
 556         session->goto_start ();
 557 }
 558
 559 void
 560 Editor::move_to_end ()
 561 {
 562
 563         session->request_locate (session->current_end_frame());
 564 }
 565
 566 void
 567 Editor::build_region_boundary_cache ()
 568 {
 569         nframes64_t pos = 0;
 570         vector<RegionPoint> interesting_points;
 571         boost::shared_ptr<Region> r;
 572         TrackViewList tracks;
 573         bool at_end = false;
 574
 575         region_boundary_cache.clear ();
 576
 577         if (session == 0) {
 578                 return;
 579         }
 580
 581         switch (_snap_type) {
 582         case SnapToRegionStart:
 583                 interesting_points.push_back (Start);
 584                 break;
 585         case SnapToRegionEnd:
 586                 interesting_points.push_back (End);
 587                 break;
 588         case SnapToRegionSync:
 589                 interesting_points.push_back (SyncPoint);
 590                 break;
 591         case SnapToRegionBoundary:
 592                 interesting_points.push_back (Start);
 593                 interesting_points.push_back (End);
 594                 break;
 595         default:
 596                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), _snap_type) << endmsg;
 597                 /*NOTREACHED*/
 598                 return;
 599         }
 600
 601         TimeAxisView *ontrack = 0;
 602         TrackViewList tlist;
 603
 604         if (!selection->tracks.empty()) {
 605                 tlist = selection->tracks;
 606         } else {
 607                 tlist = track_views;
 608         }
 609
 610         while (pos < session->current_end_frame() && !at_end) {
 611
 612                 nframes64_t rpos;
 613                 nframes64_t lpos = max_frames;
 614
 615                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 616
 617                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 618                                 if (*p == interesting_points.back()) {
 619                                         at_end = true;
 620                                 }
 621                                 /* move to next point type */
 622                                 continue;
 623                         }
 624
 625                         switch (*p) {
 626                         case Start:
 627                                 rpos = r->first_frame();
 628                                 break;
 629
 630                         case End:
 631                                 rpos = r->last_frame();
 632                                 break;
 633
 634                         case SyncPoint:
 635                                 rpos = r->sync_position ();
 636                                 //r->adjust_to_sync (r->first_frame());
 637                                 break;
 638
 639                         default:
 640                                 break;
 641                         }
 642
 643                         float speed = 1.0f;
 644                         RouteTimeAxisView *rtav;
 645
 646                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 647                                 if (rtav->get_diskstream() != 0) {
 648                                         speed = rtav->get_diskstream()->speed();
 649                                 }
 650                         }
 651
 652                         rpos = track_frame_to_session_frame (rpos, speed);
 653
 654                         if (rpos < lpos) {
 655                                 lpos = rpos;
 656                         }
 657
 658                         /* prevent duplicates, but we don't use set<> because we want to be able
 659                            to sort later.
 660                         */
 661
 662                         vector<nframes64_t>::iterator ri;
 663
 664                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 665                                 if (*ri == rpos) {
 666                                         break;
 667                                 }
 668                         }
 669
 670                         if (ri == region_boundary_cache.end()) {
 671                                 region_boundary_cache.push_back (rpos);
 672                         }
 673                 }
 674
 675                 pos = lpos + 1;
 676         }
 677
 678         /* finally sort to be sure that the order is correct */
 679
 680         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 681 }
 682
 683 boost::shared_ptr<Region>
 684 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 685 {
 686         TrackViewList::iterator i;
 687         nframes64_t closest = max_frames;
 688         boost::shared_ptr<Region> ret;
 689         nframes64_t rpos = 0;
 690
 691         float track_speed;
 692         nframes64_t track_frame;
 693         RouteTimeAxisView *rtav;
 694
 695         for (i = tracks.begin(); i != tracks.end(); ++i) {
 696
 697                 nframes64_t distance;
 698                 boost::shared_ptr<Region> r;
 699
 700                 track_speed = 1.0f;
 701                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 702                         if (rtav->get_diskstream()!=0)
 703                                 track_speed = rtav->get_diskstream()->speed();
 704                 }
 705
 706                 track_frame = session_frame_to_track_frame(frame, track_speed);
 707
 708                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 709                         continue;
 710                 }
 711
 712                 switch (point) {
 713                 case Start:
 714                         rpos = r->first_frame ();
 715                         break;
 716
 717                 case End:
 718                         rpos = r->last_frame ();
 719                         break;
 720
 721                 case SyncPoint:
 722                         rpos = r->sync_position ();
 723                         // r->adjust_to_sync (r->first_frame());
 724                         break;
 725                 }
 726
 727                 // rpos is a "track frame", converting it to "session frame"
 728                 rpos = track_frame_to_session_frame(rpos, track_speed);
 729
 730                 if (rpos > frame) {
 731                         distance = rpos - frame;
 732                 } else {
 733                         distance = frame - rpos;
 734                 }
 735
 736                 if (distance < closest) {
 737                         closest = distance;
 738                         if (ontrack != 0)
 739                                 *ontrack = (*i);
 740                         ret = r;
 741                 }
 742         }
 743
 744         return ret;
 745 }
 746
 747 nframes64_t
 748 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 749 {
 750         nframes64_t distance = max_frames;
 751         nframes64_t current_nearest = -1;
 752
 753
 754         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 755                 nframes64_t contender;
 756                 nframes64_t d;
 757
 758                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 759
 760                 if (!rtv) {
 761                         continue;
 762                 }
 763
 764                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 765                         continue;
 766                 }
 767
 768                 d = ::llabs (pos - contender);
 769
 770                 if (d < distance) {
 771                         current_nearest = contender;
 772                         distance = d;
 773                 }
 774         }
 775
 776         return current_nearest;
 777 }
 778
 779 nframes64_t
 780 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 781 {
 782         nframes64_t target;
 783         TrackViewList tvl;
 784
 785         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 786
 787                 if (!selection->tracks.empty()) {
 788
 789                         target = find_next_region_boundary (pos, dir, selection->tracks);
 790
 791                 } else {
 792
 793                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 794                                 get_onscreen_tracks (tvl);
 795                                 target = find_next_region_boundary (pos, dir, tvl);
 796                         } else {
 797                                 target = find_next_region_boundary (pos, dir, track_views);
 798                         }
 799                 }
 800
 801         } else {
 802
 803                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 804                         get_onscreen_tracks (tvl);
 805                         target = find_next_region_boundary (pos, dir, tvl);
 806                 } else {
 807                         target = find_next_region_boundary (pos, dir, track_views);
 808                 }
 809         }
 810
 811         return target;
 812 }
 813
 814 void
 815 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 816 {
 817         nframes64_t pos = playhead_cursor->current_frame;
 818         nframes64_t target;
 819
 820         if (!session) {
 821                 return;
 822         }
 823
 824         // so we don't find the current region again..
 825         if (dir > 0 || pos > 0) {
 826                 pos += dir;
 827         }
 828
 829         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 830                 return;
 831         }
 832
 833
 834         session->request_locate (target);
 835 }
 836
 837 void
 838 Editor::cursor_to_next_region_boundary (bool with_selection)
 839 {
 840         cursor_to_region_boundary (with_selection, 1);
 841 }
 842
 843 void
 844 Editor::cursor_to_previous_region_boundary (bool with_selection)
 845 {
 846         cursor_to_region_boundary (with_selection, -1);
 847 }
 848
 849 void
 850 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 851 {
 852         boost::shared_ptr<Region> r;
 853         nframes64_t pos = cursor->current_frame;
 854
 855         if (!session) {
 856                 return;
 857         }
 858
 859         TimeAxisView *ontrack = 0;
 860
 861         // so we don't find the current region again..
 862         if (dir>0 || pos>0)
 863                 pos+=dir;
 864
 865         if (!selection->tracks.empty()) {
 866
 867                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 868
 869         } else if (clicked_axisview) {
 870
 871                 TrackViewList t;
 872                 t.push_back (clicked_axisview);
 873
 874                 r = find_next_region (pos, point, dir, t, &ontrack);
 875
 876         } else {
 877
 878                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 879         }
 880
 881         if (r == 0) {
 882                 return;
 883         }
 884
 885         switch (point){
 886         case Start:
 887                 pos = r->first_frame ();
 888                 break;
 889
 890         case End:
 891                 pos = r->last_frame ();
 892                 break;
 893
 894         case SyncPoint:
 895                 pos = r->sync_position ();
 896                 // r->adjust_to_sync (r->first_frame());
 897                 break;
 898         }
 899
 900         float speed = 1.0f;
 901         RouteTimeAxisView *rtav;
 902
 903         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 904                 if (rtav->get_diskstream() != 0) {
 905                         speed = rtav->get_diskstream()->speed();
 906                 }
 907         }
 908
 909         pos = track_frame_to_session_frame(pos, speed);
 910
 911         if (cursor == playhead_cursor) {
 912                 session->request_locate (pos);
 913         } else {
 914                 cursor->set_position (pos);
 915         }
 916 }
 917
 918 void
 919 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 920 {
 921         cursor_to_region_point (cursor, point, 1);
 922 }
 923
 924 void
 925 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 926 {
 927         cursor_to_region_point (cursor, point, -1);
 928 }
 929
 930 void
 931 Editor::cursor_to_selection_start (EditorCursor *cursor)
 932 {
 933         nframes64_t pos = 0;
 934         RegionSelection rs;
 935
 936         get_regions_for_action (rs);
 937
 938         switch (mouse_mode) {
 939         case MouseObject:
 940                 if (!rs.empty()) {
 941                         pos = rs.start();
 942                 }
 943                 break;
 944
 945         case MouseRange:
 946                 if (!selection->time.empty()) {
 947                         pos = selection->time.start ();
 948                 }
 949                 break;
 950
 951         default:
 952                 return;
 953         }
 954
 955         if (cursor == playhead_cursor) {
 956                 session->request_locate (pos);
 957         } else {
 958                 cursor->set_position (pos);
 959         }
 960 }
 961
 962 void
 963 Editor::cursor_to_selection_end (EditorCursor *cursor)
 964 {
 965         nframes64_t pos = 0;
 966         RegionSelection rs;
 967
 968         get_regions_for_action (rs);
 969
 970         switch (mouse_mode) {
 971         case MouseObject:
 972                 if (!rs.empty()) {
 973                         pos = rs.end_frame();
 974                 }
 975                 break;
 976
 977         case MouseRange:
 978                 if (!selection->time.empty()) {
 979                         pos = selection->time.end_frame ();
 980                 }
 981                 break;
 982
 983         default:
 984                 return;
 985         }
 986
 987         if (cursor == playhead_cursor) {
 988                 session->request_locate (pos);
 989         } else {
 990                 cursor->set_position (pos);
 991         }
 992 }
 993
 994 void
 995 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
 996 {
 997         nframes64_t target;
 998         Location* loc;
 999         bool ignored;
1000
1001         if (!session) {
1002                 return;
1003         }
1004
1005         if (selection->markers.empty()) {
1006                 nframes64_t mouse;
1007                 bool ignored;
1008
1009                 if (!mouse_frame (mouse, ignored)) {
1010                         return;
1011                 }
1012
1013                 add_location_mark (mouse);
1014         }
1015
1016         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1017                 return;
1018         }
1019
1020         nframes64_t pos = loc->start();
1021
1022         // so we don't find the current region again..
1023         if (dir > 0 || pos > 0) {
1024                 pos += dir;
1025         }
1026
1027         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1028                 return;
1029         }
1030
1031         loc->move_to (target);
1032 }
1033
1034 void
1035 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1036 {
1037         selected_marker_to_region_boundary (with_selection, 1);
1038 }
1039
1040 void
1041 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1042 {
1043         selected_marker_to_region_boundary (with_selection, -1);
1044 }
1045
1046 void
1047 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1048 {
1049         boost::shared_ptr<Region> r;
1050         nframes64_t pos;
1051         Location* loc;
1052         bool ignored;
1053
1054         if (!session || selection->markers.empty()) {
1055                 return;
1056         }
1057
1058         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1059                 return;
1060         }
1061
1062         TimeAxisView *ontrack = 0;
1063
1064         pos = loc->start();
1065
1066         // so we don't find the current region again..
1067         if (dir>0 || pos>0)
1068                 pos+=dir;
1069
1070         if (!selection->tracks.empty()) {
1071
1072                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1073
1074         } else {
1075
1076                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1077         }
1078
1079         if (r == 0) {
1080                 return;
1081         }
1082
1083         switch (point){
1084         case Start:
1085                 pos = r->first_frame ();
1086                 break;
1087
1088         case End:
1089                 pos = r->last_frame ();
1090                 break;
1091
1092         case SyncPoint:
1093                 pos = r->adjust_to_sync (r->first_frame());
1094                 break;
1095         }
1096
1097         float speed = 1.0f;
1098         RouteTimeAxisView *rtav;
1099
1100         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1101                 if (rtav->get_diskstream() != 0) {
1102                         speed = rtav->get_diskstream()->speed();
1103                 }
1104         }
1105
1106         pos = track_frame_to_session_frame(pos, speed);
1107
1108         loc->move_to (pos);
1109 }
1110
1111 void
1112 Editor::selected_marker_to_next_region_point (RegionPoint point)
1113 {
1114         selected_marker_to_region_point (point, 1);
1115 }
1116
1117 void
1118 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1119 {
1120         selected_marker_to_region_point (point, -1);
1121 }
1122
1123 void
1124 Editor::selected_marker_to_selection_start ()
1125 {
1126         nframes64_t pos = 0;
1127         Location* loc;
1128         bool ignored;
1129
1130         if (!session || selection->markers.empty()) {
1131                 return;
1132         }
1133
1134         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1135                 return;
1136         }
1137
1138         RegionSelection rs;
1139
1140         get_regions_for_action (rs);
1141
1142         switch (mouse_mode) {
1143         case MouseObject:
1144                 if (!rs.empty()) {
1145                         pos = rs.start();
1146                 }
1147                 break;
1148
1149         case MouseRange:
1150                 if (!selection->time.empty()) {
1151                         pos = selection->time.start ();
1152                 }
1153                 break;
1154
1155         default:
1156                 return;
1157         }
1158
1159         loc->move_to (pos);
1160 }
1161
1162 void
1163 Editor::selected_marker_to_selection_end ()
1164 {
1165         nframes64_t pos = 0;
1166         Location* loc;
1167         bool ignored;
1168
1169         if (!session || selection->markers.empty()) {
1170                 return;
1171         }
1172
1173         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1174                 return;
1175         }
1176
1177         RegionSelection rs;
1178
1179         get_regions_for_action (rs);
1180
1181         switch (mouse_mode) {
1182         case MouseObject:
1183                 if (!rs.empty()) {
1184                         pos = rs.end_frame();
1185                 }
1186                 break;
1187
1188         case MouseRange:
1189                 if (!selection->time.empty()) {
1190                         pos = selection->time.end_frame ();
1191                 }
1192                 break;
1193
1194         default:
1195                 return;
1196         }
1197
1198         loc->move_to (pos);
1199 }
1200
1201 void
1202 Editor::scroll_playhead (bool forward)
1203 {
1204         nframes64_t pos = playhead_cursor->current_frame;
1205         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1206
1207         if (forward) {
1208                 if (pos == max_frames) {
1209                         return;
1210                 }
1211
1212                 if (pos < max_frames - delta) {
1213                         pos += delta ;
1214                 } else {
1215                         pos = max_frames;
1216                 }
1217
1218         } else {
1219
1220                 if (pos == 0) {
1221                         return;
1222                 }
1223
1224                 if (pos > delta) {
1225                         pos -= delta;
1226                 } else {
1227                         pos = 0;
1228                 }
1229         }
1230
1231         session->request_locate (pos);
1232 }
1233
1234 void
1235 Editor::playhead_backward ()
1236 {
1237         nframes64_t pos;
1238         nframes64_t cnt;
1239         float prefix;
1240         bool was_floating;
1241
1242         if (get_prefix (prefix, was_floating)) {
1243                 cnt = 1;
1244         } else {
1245                 if (was_floating) {
1246                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1247                 } else {
1248                         cnt = (nframes64_t) prefix;
1249                 }
1250         }
1251
1252         pos = playhead_cursor->current_frame;
1253
1254         if ((nframes64_t) pos < cnt) {
1255                 pos = 0;
1256         } else {
1257                 pos -= cnt;
1258         }
1259
1260         /* XXX this is completely insane. with the current buffering
1261            design, we'll force a complete track buffer flush and
1262            reload, just to move 1 sample !!!
1263         */
1264
1265         session->request_locate (pos);
1266 }
1267
1268 void
1269 Editor::playhead_forward ()
1270 {
1271         nframes64_t pos;
1272         nframes64_t cnt;
1273         bool was_floating;
1274         float prefix;
1275
1276         if (get_prefix (prefix, was_floating)) {
1277                 cnt = 1;
1278         } else {
1279                 if (was_floating) {
1280                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1281                 } else {
1282                         cnt = (nframes64_t) floor (prefix);
1283                 }
1284         }
1285
1286         pos = playhead_cursor->current_frame;
1287
1288         /* XXX this is completely insane. with the current buffering
1289            design, we'll force a complete track buffer flush and
1290            reload, just to move 1 sample !!!
1291         */
1292
1293         session->request_locate (pos+cnt);
1294 }
1295
1296 void
1297 Editor::cursor_align (bool playhead_to_edit)
1298 {
1299         if (!session) {
1300                 return;
1301         }
1302
1303         if (playhead_to_edit) {
1304
1305                 if (selection->markers.empty()) {
1306                         return;
1307                 }
1308
1309                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1310
1311         } else {
1312                 /* move selected markers to playhead */
1313
1314                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1315                         bool ignored;
1316
1317                         Location* loc = find_location_from_marker (*i, ignored);
1318
1319                         if (loc->is_mark()) {
1320                                 loc->set_start (playhead_cursor->current_frame);
1321                         } else {
1322                                 loc->set (playhead_cursor->current_frame,
1323                                           playhead_cursor->current_frame + loc->length());
1324                         }
1325                 }
1326         }
1327 }
1328
1329 void
1330 Editor::edit_cursor_backward ()
1331 {
1332         nframes64_t pos;
1333         nframes64_t cnt;
1334         float prefix;
1335         bool was_floating;
1336
1337         if (get_prefix (prefix, was_floating)) {
1338                 cnt = 1;
1339         } else {
1340                 if (was_floating) {
1341                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1342                 } else {
1343                         cnt = (nframes64_t) prefix;
1344                 }
1345         }
1346
1347         if ((pos = get_preferred_edit_position()) < 0) {
1348                 return;
1349         }
1350
1351         if (pos < cnt) {
1352                 pos = 0;
1353         } else {
1354                 pos -= cnt;
1355         }
1356
1357         // EDIT CURSOR edit_cursor->set_position (pos);
1358 }
1359
1360 void
1361 Editor::edit_cursor_forward ()
1362 {
1363         //nframes64_t pos;
1364         nframes64_t cnt;
1365         bool was_floating;
1366         float prefix;
1367
1368         if (get_prefix (prefix, was_floating)) {
1369                 cnt = 1;
1370         } else {
1371                 if (was_floating) {
1372                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1373                 } else {
1374                         cnt = (nframes64_t) floor (prefix);
1375                 }
1376         }
1377
1378         // pos = edit_cursor->current_frame;
1379         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1380 }
1381
1382 void
1383 Editor::goto_frame ()
1384 {
1385         float prefix;
1386         bool was_floating;
1387         nframes64_t frame;
1388
1389         if (get_prefix (prefix, was_floating)) {
1390                 return;
1391         }
1392
1393         if (was_floating) {
1394                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1395         } else {
1396                 frame = (nframes64_t) floor (prefix);
1397         }
1398
1399         session->request_locate (frame);
1400 }
1401
1402 void
1403 Editor::scroll_backward (float pages)
1404 {
1405         nframes64_t frame;
1406         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1407         bool was_floating;
1408         float prefix;
1409         nframes64_t cnt;
1410
1411         if (get_prefix (prefix, was_floating)) {
1412                 cnt = (nframes64_t) floor (pages * one_page);
1413         } else {
1414                 if (was_floating) {
1415                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1416                 } else {
1417                         cnt = (nframes64_t) floor (prefix * one_page);
1418                 }
1419         }
1420
1421         if (leftmost_frame < cnt) {
1422                 frame = 0;
1423         } else {
1424                 frame = leftmost_frame - cnt;
1425         }
1426
1427         reset_x_origin (frame);
1428 }
1429
1430 void
1431 Editor::scroll_forward (float pages)
1432 {
1433         nframes64_t frame;
1434         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1435         bool was_floating;
1436         float prefix;
1437         nframes64_t cnt;
1438
1439         if (get_prefix (prefix, was_floating)) {
1440                 cnt = (nframes64_t) floor (pages * one_page);
1441         } else {
1442                 if (was_floating) {
1443                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1444                 } else {
1445                         cnt = (nframes64_t) floor (prefix * one_page);
1446                 }
1447         }
1448
1449         if (max_frames - cnt < leftmost_frame) {
1450                 frame = max_frames - cnt;
1451         } else {
1452                 frame = leftmost_frame + cnt;
1453         }
1454
1455         reset_x_origin (frame);
1456 }
1457
1458 void
1459 Editor::scroll_tracks_down ()
1460 {
1461         float prefix;
1462         bool was_floating;
1463         int cnt;
1464
1465         if (get_prefix (prefix, was_floating)) {
1466                 cnt = 1;
1467         } else {
1468                 cnt = (int) floor (prefix);
1469         }
1470
1471         double vert_value = vertical_adjustment.get_value() + (cnt *
1472                 vertical_adjustment.get_page_size());
1473         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1474                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1475         }
1476         vertical_adjustment.set_value (vert_value);
1477 }
1478
1479 void
1480 Editor::scroll_tracks_up ()
1481 {
1482         float prefix;
1483         bool was_floating;
1484         int cnt;
1485
1486         if (get_prefix (prefix, was_floating)) {
1487                 cnt = 1;
1488         } else {
1489                 cnt = (int) floor (prefix);
1490         }
1491
1492         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1493 }
1494
1495 void
1496 Editor::scroll_tracks_down_line ()
1497 {
1498         double vert_value = vertical_adjustment.get_value() + 60;
1499
1500         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1501                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1502         }
1503
1504         vertical_adjustment.set_value (vert_value);
1505 }
1506
1507 void
1508 Editor::scroll_tracks_up_line ()
1509 {
1510         reset_y_origin (vertical_adjustment.get_value() - 60);
1511 }
1512
1513 /* ZOOM */
1514
1515 void
1516 Editor::tav_zoom_step (bool coarser)
1517 {
1518         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1519
1520         _routes->suspend_redisplay ();
1521
1522         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1523                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1524                         tv->step_height (coarser);
1525         }
1526
1527         _routes->resume_redisplay ();
1528 }
1529
1530 void
1531 Editor::temporal_zoom_step (bool coarser)
1532 {
1533         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1534
1535         double nfpu;
1536
1537         nfpu = frames_per_unit;
1538
1539         if (coarser) {
1540                 nfpu *= 1.61803399;
1541         } else {
1542                 nfpu = max(1.0,(nfpu/1.61803399));
1543         }
1544
1545         temporal_zoom (nfpu);
1546 }
1547
1548 void
1549 Editor::temporal_zoom (gdouble fpu)
1550 {
1551         if (!session) return;
1552
1553         nframes64_t current_page = current_page_frames();
1554         nframes64_t current_leftmost = leftmost_frame;
1555         nframes64_t current_rightmost;
1556         nframes64_t current_center;
1557         nframes64_t new_page_size;
1558         nframes64_t half_page_size;
1559         nframes64_t leftmost_after_zoom = 0;
1560         nframes64_t where;
1561         bool in_track_canvas;
1562         double nfpu;
1563         double l;
1564
1565         /* XXX this limit is also in ::set_frames_per_unit() */
1566
1567         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1568                 return;
1569         }
1570
1571         nfpu = fpu;
1572
1573         new_page_size = (nframes64_t) floor (_canvas_width * nfpu);
1574         half_page_size = new_page_size / 2;
1575
1576         switch (zoom_focus) {
1577         case ZoomFocusLeft:
1578                 leftmost_after_zoom = current_leftmost;
1579                 break;
1580
1581         case ZoomFocusRight:
1582                 current_rightmost = leftmost_frame + current_page;
1583                 if (current_rightmost < new_page_size) {
1584                         leftmost_after_zoom = 0;
1585                 } else {
1586                         leftmost_after_zoom = current_rightmost - new_page_size;
1587                 }
1588                 break;
1589
1590         case ZoomFocusCenter:
1591                 current_center = current_leftmost + (current_page/2);
1592                 if (current_center < half_page_size) {
1593                         leftmost_after_zoom = 0;
1594                 } else {
1595                         leftmost_after_zoom = current_center - half_page_size;
1596                 }
1597                 break;
1598
1599         case ZoomFocusPlayhead:
1600                 /* try to keep the playhead in the same place */
1601
1602                 where = playhead_cursor->current_frame;
1603
1604                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1605
1606                 if (l < 0) {
1607                         leftmost_after_zoom = 0;
1608                 } else if (l > max_frames) {
1609                         leftmost_after_zoom = max_frames - new_page_size;
1610                 } else {
1611                         leftmost_after_zoom = (nframes64_t) l;
1612                 }
1613                 break;
1614
1615         case ZoomFocusMouse:
1616                 /* try to keep the mouse over the same point in the display */
1617
1618                 if (!mouse_frame (where, in_track_canvas)) {
1619                         /* use playhead instead */
1620                         where = playhead_cursor->current_frame;
1621
1622                         if (where < half_page_size) {
1623                                 leftmost_after_zoom = 0;
1624                         } else {
1625                                 leftmost_after_zoom = where - half_page_size;
1626                         }
1627
1628                 } else {
1629
1630                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1631
1632                         if (l < 0) {
1633                                 leftmost_after_zoom = 0;
1634                         } else if (l > max_frames) {
1635                                 leftmost_after_zoom = max_frames - new_page_size;
1636                         } else {
1637                                 leftmost_after_zoom = (nframes64_t) l;
1638                         }
1639                 }
1640
1641                 break;
1642
1643         case ZoomFocusEdit:
1644                 /* try to keep the edit point in the same place */
1645                 where = get_preferred_edit_position ();
1646
1647                 if (where > 0) {
1648
1649                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1650
1651                         if (l < 0) {
1652                                 leftmost_after_zoom = 0;
1653                         } else if (l > max_frames) {
1654                                 leftmost_after_zoom = max_frames - new_page_size;
1655                         } else {
1656                                 leftmost_after_zoom = (nframes64_t) l;
1657                         }
1658
1659                 } else {
1660                         /* edit point not defined */
1661                         return;
1662                 }
1663                 break;
1664
1665         }
1666
1667         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1668
1669         reposition_and_zoom (leftmost_after_zoom, nfpu);
1670 }
1671
1672 void
1673 Editor::temporal_zoom_region (bool both_axes)
1674 {
1675
1676         nframes64_t start = max_frames;
1677         nframes64_t end = 0;
1678         RegionSelection rs;
1679         set<TimeAxisView*> tracks;
1680
1681         get_regions_for_action (rs);
1682
1683         if (rs.empty()) {
1684                 return;
1685         }
1686
1687         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1688
1689                 if ((*i)->region()->position() < start) {
1690                         start = (*i)->region()->position();
1691                 }
1692
1693                 if ((*i)->region()->last_frame() + 1 > end) {
1694                         end = (*i)->region()->last_frame() + 1;
1695                 }
1696
1697                 tracks.insert (&((*i)->get_time_axis_view()));
1698         }
1699
1700         /* now comes an "interesting" hack ... make sure we leave a little space
1701            at each end of the editor so that the zoom doesn't fit the region
1702            precisely to the screen.
1703         */
1704
1705         GdkScreen* screen = gdk_screen_get_default ();
1706         gint pixwidth = gdk_screen_get_width (screen);
1707         gint mmwidth = gdk_screen_get_width_mm (screen);
1708         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1709         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1710
1711         if ((start == 0 && end == 0) || end < start) {
1712                 return;
1713         }
1714
1715         nframes64_t range = end - start;
1716         double new_fpu = (double)range / (double)_canvas_width;
1717         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1718
1719         if (start > extra_samples) {
1720                 start -= extra_samples;
1721         } else {
1722                 start = 0;
1723         }
1724
1725         if (max_frames - extra_samples > end) {
1726                 end += extra_samples;
1727         } else {
1728                 end = max_frames;
1729         }
1730
1731         if (both_axes) {
1732                 /* save visual state with track states included, and prevent
1733                    set_frames_per_unit() from doing it again.
1734                 */
1735                 undo_visual_stack.push_back (current_visual_state(true));
1736                 no_save_visual = true;
1737         }
1738
1739         temporal_zoom_by_frame (start, end, "zoom to region");
1740
1741         if (both_axes) {
1742                 uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1743
1744                 /* set visible track heights appropriately */
1745
1746                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1747                         (*t)->set_height (per_track_height);
1748                 }
1749
1750                 /* hide irrelevant tracks */
1751
1752                 _routes->suspend_redisplay ();
1753
1754                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1755                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1756                                 hide_track_in_display (**i, true);
1757                         }
1758                 }
1759
1760                 _routes->resume_redisplay ();
1761
1762                 vertical_adjustment.set_value (0.0);
1763                 no_save_visual = false;
1764         }
1765
1766         redo_visual_stack.push_back (current_visual_state());
1767 }
1768
1769 void
1770 Editor::zoom_to_region (bool both_axes)
1771 {
1772         temporal_zoom_region (both_axes);
1773 }
1774
1775 void
1776 Editor::temporal_zoom_selection ()
1777 {
1778         if (!selection) return;
1779
1780         if (selection->time.empty()) {
1781                 return;
1782         }
1783
1784         nframes64_t start = selection->time[clicked_selection].start;
1785         nframes64_t end = selection->time[clicked_selection].end;
1786
1787         temporal_zoom_by_frame (start, end, "zoom to selection");
1788 }
1789
1790 void
1791 Editor::temporal_zoom_session ()
1792 {
1793         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1794
1795         if (session) {
1796                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1797         }
1798 }
1799
1800 void
1801 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & /*op*/)
1802 {
1803         if (!session) return;
1804
1805         if ((start == 0 && end == 0) || end < start) {
1806                 return;
1807         }
1808
1809         nframes64_t range = end - start;
1810
1811         double new_fpu = (double)range / (double)_canvas_width;
1812
1813         nframes64_t new_page = (nframes64_t) floor (_canvas_width * new_fpu);
1814         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1815         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1816
1817         if (new_leftmost > middle) {
1818                 new_leftmost = 0;
1819         }
1820
1821         reposition_and_zoom (new_leftmost, new_fpu);
1822 }
1823
1824 void
1825 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1826 {
1827         if (!session) {
1828                 return;
1829         }
1830         double range_before = frame - leftmost_frame;
1831         double new_fpu;
1832
1833         new_fpu = frames_per_unit;
1834
1835         if (coarser) {
1836                 new_fpu *= 1.61803399;
1837                 range_before *= 1.61803399;
1838         } else {
1839                 new_fpu = max(1.0,(new_fpu/1.61803399));
1840                 range_before /= 1.61803399;
1841         }
1842
1843         if (new_fpu == frames_per_unit)  {
1844                 return;
1845         }
1846
1847         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1848
1849         if (new_leftmost > frame) {
1850                 new_leftmost = 0;
1851         }
1852 //      begin_reversible_command (_("zoom to frame"));
1853 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1854 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1855 //      commit_reversible_command ();
1856
1857         reposition_and_zoom (new_leftmost, new_fpu);
1858 }
1859
1860
1861 bool
1862 Editor::choose_new_marker_name(string &name) {
1863
1864         if (!Config->get_name_new_markers()) {
1865                 /* don't prompt user for a new name */
1866                 return true;
1867         }
1868
1869         ArdourPrompter dialog (true);
1870
1871         dialog.set_prompt (_("New Name:"));
1872
1873         dialog.set_title (_("New Location Marker"));
1874
1875         dialog.set_name ("MarkNameWindow");
1876         dialog.set_size_request (250, -1);
1877         dialog.set_position (Gtk::WIN_POS_MOUSE);
1878
1879         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1880         dialog.set_initial_text (name);
1881
1882         dialog.show ();
1883
1884         switch (dialog.run ()) {
1885         case RESPONSE_ACCEPT:
1886                 break;
1887         default:
1888                 return false;
1889         }
1890
1891         dialog.get_result(name);
1892         return true;
1893
1894 }
1895
1896
1897 void
1898 Editor::add_location_from_selection ()
1899 {
1900         string rangename;
1901
1902         if (selection->time.empty()) {
1903                 return;
1904         }
1905
1906         if (session == 0 || clicked_axisview == 0) {
1907                 return;
1908         }
1909
1910         nframes64_t start = selection->time[clicked_selection].start;
1911         nframes64_t end = selection->time[clicked_selection].end;
1912
1913         session->locations()->next_available_name(rangename,"selection");
1914         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1915
1916         session->begin_reversible_command (_("add marker"));
1917         XMLNode &before = session->locations()->get_state();
1918         session->locations()->add (location, true);
1919         XMLNode &after = session->locations()->get_state();
1920         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1921         session->commit_reversible_command ();
1922 }
1923
1924 void
1925 Editor::add_location_mark (nframes64_t where)
1926 {
1927         string markername;
1928
1929         select_new_marker = true;
1930
1931         session->locations()->next_available_name(markername,"mark");
1932         if (!choose_new_marker_name(markername)) {
1933                 return;
1934         }
1935         Location *location = new Location (where, where, markername, Location::IsMark);
1936         session->begin_reversible_command (_("add marker"));
1937         XMLNode &before = session->locations()->get_state();
1938         session->locations()->add (location, true);
1939         XMLNode &after = session->locations()->get_state();
1940         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1941         session->commit_reversible_command ();
1942 }
1943
1944 void
1945 Editor::add_location_from_playhead_cursor ()
1946 {
1947         add_location_mark (session->audible_frame());
1948 }
1949
1950 void
1951 Editor::add_locations_from_audio_region ()
1952 {
1953         RegionSelection rs;
1954
1955         get_regions_for_action (rs);
1956
1957         if (rs.empty()) {
1958                 return;
1959         }
1960
1961         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
1962         XMLNode &before = session->locations()->get_state();
1963
1964         cerr << "Add locations\n";
1965
1966         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1967
1968                 boost::shared_ptr<Region> region = (*i)->region ();
1969
1970                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1971
1972                 session->locations()->add (location, true);
1973         }
1974
1975         XMLNode &after = session->locations()->get_state();
1976         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
1977         session->commit_reversible_command ();
1978 }
1979
1980 void
1981 Editor::add_location_from_audio_region ()
1982 {
1983         RegionSelection rs;
1984
1985         get_regions_for_action (rs);
1986
1987         if (rs.empty()) {
1988                 return;
1989         }
1990
1991         session->begin_reversible_command (_("add marker"));
1992         XMLNode &before = session->locations()->get_state();
1993
1994         string markername;
1995
1996         if (rs.size() > 1) {            // more than one region selected
1997                 session->locations()->next_available_name(markername, "regions");
1998         } else {
1999                 RegionView* rv = *(rs.begin());
2000                 boost::shared_ptr<Region> region = rv->region();
2001                 markername = region->name();
2002         }
2003
2004         if (!choose_new_marker_name(markername)) {
2005                 return;
2006         }
2007
2008         cerr << "Add location\n";
2009
2010         // single range spanning all selected
2011         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2012         session->locations()->add (location, true);
2013
2014         XMLNode &after = session->locations()->get_state();
2015         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2016         session->commit_reversible_command ();
2017 }
2018
2019 void
2020 Editor::amplitude_zoom_step (bool in)
2021 {
2022         gdouble zoom = 1.0;
2023
2024         if (in) {
2025                 zoom *= 2.0;
2026         } else {
2027                 if (zoom > 2.0) {
2028                         zoom /= 2.0;
2029                 } else {
2030                         zoom = 1.0;
2031                 }
2032         }
2033
2034 #ifdef FIX_FOR_CANVAS
2035         /* XXX DO SOMETHING */
2036 #endif
2037 }
2038
2039
2040 /* DELETION */
2041
2042
2043 void
2044 Editor::delete_sample_forward ()
2045 {
2046 }
2047
2048 void
2049 Editor::delete_sample_backward ()
2050 {
2051 }
2052
2053 void
2054 Editor::delete_screen ()
2055 {
2056 }
2057
2058 /* SEARCH */
2059
2060 void
2061 Editor::search_backwards ()
2062 {
2063         /* what ? */
2064 }
2065
2066 void
2067 Editor::search_forwards ()
2068 {
2069         /* what ? */
2070 }
2071
2072 /* MARKS */
2073
2074 void
2075 Editor::jump_forward_to_mark ()
2076 {
2077         if (!session) {
2078                 return;
2079         }
2080
2081         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2082
2083         if (location) {
2084                 session->request_locate (location->start(), session->transport_rolling());
2085         } else {
2086                 session->request_locate (session->current_end_frame());
2087         }
2088 }
2089
2090 void
2091 Editor::jump_backward_to_mark ()
2092 {
2093         if (!session) {
2094                 return;
2095         }
2096
2097         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2098
2099         if (location) {
2100                 session->request_locate (location->start(), session->transport_rolling());
2101         } else {
2102                 session->goto_start ();
2103         }
2104 }
2105
2106 void
2107 Editor::set_mark ()
2108 {
2109         nframes64_t pos;
2110         float prefix;
2111         bool was_floating;
2112         string markername;
2113
2114         if (get_prefix (prefix, was_floating)) {
2115                 pos = session->audible_frame ();
2116         } else {
2117                 if (was_floating) {
2118                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2119                 } else {
2120                         pos = (nframes64_t) floor (prefix);
2121                 }
2122         }
2123
2124         session->locations()->next_available_name(markername,"mark");
2125         if (!choose_new_marker_name(markername)) {
2126                 return;
2127         }
2128         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2129 }
2130
2131 void
2132 Editor::clear_markers ()
2133 {
2134         if (session) {
2135                 session->begin_reversible_command (_("clear markers"));
2136                 XMLNode &before = session->locations()->get_state();
2137                 session->locations()->clear_markers ();
2138                 XMLNode &after = session->locations()->get_state();
2139                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2140                 session->commit_reversible_command ();
2141         }
2142 }
2143
2144 void
2145 Editor::clear_ranges ()
2146 {
2147         if (session) {
2148                 session->begin_reversible_command (_("clear ranges"));
2149                 XMLNode &before = session->locations()->get_state();
2150
2151                 Location * looploc = session->locations()->auto_loop_location();
2152                 Location * punchloc = session->locations()->auto_punch_location();
2153
2154                 session->locations()->clear_ranges ();
2155                 // re-add these
2156                 if (looploc) session->locations()->add (looploc);
2157                 if (punchloc) session->locations()->add (punchloc);
2158
2159                 XMLNode &after = session->locations()->get_state();
2160                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2161                 session->commit_reversible_command ();
2162         }
2163 }
2164
2165 void
2166 Editor::clear_locations ()
2167 {
2168         session->begin_reversible_command (_("clear locations"));
2169         XMLNode &before = session->locations()->get_state();
2170         session->locations()->clear ();
2171         XMLNode &after = session->locations()->get_state();
2172         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2173         session->commit_reversible_command ();
2174         session->locations()->clear ();
2175 }
2176
2177 void
2178 Editor::unhide_markers ()
2179 {
2180         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2181                 Location *l = (*i).first;
2182                 if (l->is_hidden() && l->is_mark()) {
2183                         l->set_hidden(false, this);
2184                 }
2185         }
2186 }
2187
2188 void
2189 Editor::unhide_ranges ()
2190 {
2191         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2192                 Location *l = (*i).first;
2193                 if (l->is_hidden() && l->is_range_marker()) {
2194                         l->set_hidden(false, this);
2195                 }
2196         }
2197 }
2198
2199 /* INSERT/REPLACE */
2200
2201 void
2202 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2203 {
2204         double wx, wy;
2205         double cx, cy;
2206         nframes64_t where;
2207         RouteTimeAxisView *rtv = 0;
2208         boost::shared_ptr<Playlist> playlist;
2209
2210         track_canvas->window_to_world (x, y, wx, wy);
2211         //wx += horizontal_adjustment.get_value();
2212         //wy += vertical_adjustment.get_value();
2213
2214         GdkEvent event;
2215         event.type = GDK_BUTTON_RELEASE;
2216         event.button.x = wx;
2217         event.button.y = wy;
2218
2219         where = event_frame (&event, &cx, &cy);
2220
2221         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2222                 /* clearly outside canvas area */
2223                 return;
2224         }
2225
2226         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
2227         if (tv.first == 0) {
2228                 return;
2229         }
2230
2231         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2232                 return;
2233         }
2234
2235         if ((playlist = rtv->playlist()) == 0) {
2236                 return;
2237         }
2238
2239         snap_to (where);
2240
2241         begin_reversible_command (_("insert dragged region"));
2242         XMLNode &before = playlist->get_state();
2243         playlist->add_region (RegionFactory::create (region), where, 1.0);
2244         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2245         commit_reversible_command ();
2246 }
2247
2248 void
2249 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y) {
2250         double wx, wy;
2251         double cx, cy;
2252         nframes_t where;
2253         RouteTimeAxisView *dest_rtv = 0;
2254         RouteTimeAxisView *source_rtv = 0;
2255
2256         track_canvas->window_to_world (x, y, wx, wy);
2257         wx += horizontal_adjustment.get_value();
2258         wy += vertical_adjustment.get_value();
2259
2260         GdkEvent event;
2261         event.type = GDK_BUTTON_RELEASE;
2262         event.button.x = wx;
2263         event.button.y = wy;
2264
2265         where = event_frame (&event, &cx, &cy);
2266
2267         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
2268         if (tv.first == 0) {
2269                 return;
2270         }
2271
2272         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2273                 return;
2274         }
2275
2276         /* use this drag source to add underlay to a track. But we really don't care
2277            about the Route, only the view of the route, so find it first */
2278         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2279                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2280                         continue;
2281                 }
2282
2283                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2284                         dest_rtv->add_underlay(source_rtv->view());
2285                         break;
2286                 }
2287         }
2288 }
2289
2290 void
2291 Editor::insert_region_list_selection (float times)
2292 {
2293         RouteTimeAxisView *tv = 0;
2294         boost::shared_ptr<Playlist> playlist;
2295
2296         if (clicked_routeview != 0) {
2297                 tv = clicked_routeview;
2298         } else if (!selection->tracks.empty()) {
2299                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2300                         return;
2301                 }
2302         } else if (entered_track != 0) {
2303                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2304                         return;
2305                 }
2306         } else {
2307                 return;
2308         }
2309
2310         if ((playlist = tv->playlist()) == 0) {
2311                 return;
2312         }
2313
2314         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2315         if (region == 0) {
2316                 return;
2317         }
2318
2319         begin_reversible_command (_("insert region"));
2320         XMLNode &before = playlist->get_state();
2321         playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2322         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2323         commit_reversible_command ();
2324 }
2325
2326 /* BUILT-IN EFFECTS */
2327
2328 void
2329 Editor::reverse_selection ()
2330 {
2331
2332 }
2333
2334 /* GAIN ENVELOPE EDITING */
2335
2336 void
2337 Editor::edit_envelope ()
2338 {
2339 }
2340
2341 /* PLAYBACK */
2342
2343 void
2344 Editor::transition_to_rolling (bool fwd)
2345 {
2346         if (!session) {
2347                 return;
2348         }
2349
2350         if (session->config.get_external_sync()) {
2351                 switch (session->config.get_sync_source()) {
2352                 case JACK:
2353                         break;
2354                 default:
2355                         /* transport controlled by the master */
2356                         return;
2357                 }
2358         }
2359
2360         if (session->is_auditioning()) {
2361                 session->cancel_audition ();
2362                 return;
2363         }
2364
2365         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2366 }
2367
2368 void
2369 Editor::play_from_start ()
2370 {
2371         session->request_locate (session->current_start_frame(), true);
2372 }
2373
2374 void
2375 Editor::play_from_edit_point ()
2376 {
2377         session->request_locate (get_preferred_edit_position(), true);
2378 }
2379
2380 void
2381 Editor::play_from_edit_point_and_return ()
2382 {
2383         nframes64_t start_frame;
2384         nframes64_t return_frame;
2385
2386         start_frame = get_preferred_edit_position (true);
2387
2388         if (session->transport_rolling()) {
2389                 session->request_locate (start_frame, false);
2390                 return;
2391         }
2392
2393         /* don't reset the return frame if its already set */
2394
2395         if ((return_frame = session->requested_return_frame()) < 0) {
2396                 return_frame = session->audible_frame();
2397         }
2398
2399         if (start_frame >= 0) {
2400                 session->request_roll_at_and_return (start_frame, return_frame);
2401         }
2402 }
2403
2404 void
2405 Editor::play_selection ()
2406 {
2407         if (selection->time.empty()) {
2408                 return;
2409         }
2410
2411         session->request_play_range (&selection->time, true);
2412 }
2413
2414 void
2415 Editor::loop_selected_region ()
2416 {
2417         RegionSelection rs;
2418
2419         get_regions_for_action (rs);
2420
2421         if (!rs.empty()) {
2422                 RegionView *rv = *(rs.begin());
2423                 Location* tll;
2424
2425                 if ((tll = transport_loop_location()) != 0)  {
2426
2427                         tll->set (rv->region()->position(), rv->region()->last_frame());
2428
2429                         // enable looping, reposition and start rolling
2430
2431                         session->request_play_loop (true);
2432                         session->request_locate (tll->start(), false);
2433                         session->request_transport_speed (1.0f);
2434                 }
2435         }
2436 }
2437
2438 void
2439 Editor::play_location (Location& location)
2440 {
2441         if (location.start() <= location.end()) {
2442                 return;
2443         }
2444
2445         session->request_bounded_roll (location.start(), location.end());
2446 }
2447
2448 void
2449 Editor::loop_location (Location& location)
2450 {
2451         if (location.start() <= location.end()) {
2452                 return;
2453         }
2454
2455         Location* tll;
2456
2457         if ((tll = transport_loop_location()) != 0) {
2458                 tll->set (location.start(), location.end());
2459
2460                 // enable looping, reposition and start rolling
2461                 session->request_play_loop (true);
2462                 session->request_locate (tll->start(), true);
2463         }
2464 }
2465
2466 void
2467 Editor::raise_region ()
2468 {
2469         selection->foreach_region (&Region::raise);
2470 }
2471
2472 void
2473 Editor::raise_region_to_top ()
2474 {
2475         selection->foreach_region (&Region::raise_to_top);
2476 }
2477
2478 void
2479 Editor::lower_region ()
2480 {
2481         selection->foreach_region (&Region::lower);
2482 }
2483
2484 void
2485 Editor::lower_region_to_bottom ()
2486 {
2487         selection->foreach_region (&Region::lower_to_bottom);
2488 }
2489
2490 /** Show the region editor for the selected regions */
2491 void
2492 Editor::edit_region ()
2493 {
2494         selection->foreach_regionview (&RegionView::show_region_editor);
2495 }
2496
2497 /** Show the midi list editor for the selected MIDI regions */
2498 void
2499 Editor::show_midi_list_editor ()
2500 {
2501         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2502 }
2503
2504 void
2505 Editor::rename_region()
2506 {
2507         RegionSelection rs;
2508
2509         get_regions_for_action (rs);
2510
2511         if (rs.empty()) {
2512                 return;
2513         }
2514
2515         ArdourDialog d (*this, _("Rename Region"), true, false);
2516         Entry entry;
2517         Label label (_("New name:"));
2518         HBox hbox;
2519
2520         hbox.set_spacing (6);
2521         hbox.pack_start (label, false, false);
2522         hbox.pack_start (entry, true, true);
2523
2524         d.get_vbox()->set_border_width (12);
2525         d.get_vbox()->pack_start (hbox, false, false);
2526
2527         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2528         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2529
2530         d.set_size_request (300, -1);
2531         d.set_position (Gtk::WIN_POS_MOUSE);
2532
2533         entry.set_text (rs.front()->region()->name());
2534         entry.select_region (0, -1);
2535
2536         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2537
2538         d.show_all ();
2539
2540         entry.grab_focus();
2541
2542         int ret = d.run();
2543
2544         d.hide ();
2545
2546         if (ret == RESPONSE_OK) {
2547                 std::string str = entry.get_text();
2548                 strip_whitespace_edges (str);
2549                 if (!str.empty()) {
2550                         rs.front()->region()->set_name (str);
2551                         _regions->redisplay ();
2552                 }
2553         }
2554 }
2555
2556 void
2557 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2558 {
2559         if (session->is_auditioning()) {
2560                 session->cancel_audition ();
2561         }
2562
2563         // note: some potential for creativity here, because region doesn't
2564         // have to belong to the playlist that Route is handling
2565
2566         // bool was_soloed = route.soloed();
2567
2568         route.set_solo (true, this);
2569
2570         session->request_bounded_roll (region->position(), region->position() + region->length());
2571
2572         /* XXX how to unset the solo state ? */
2573 }
2574
2575 /** Start an audition of the first selected region */
2576 void
2577 Editor::play_edit_range ()
2578 {
2579         nframes64_t start, end;
2580
2581         if (get_edit_op_range (start, end)) {
2582                 session->request_bounded_roll (start, end);
2583         }
2584 }
2585
2586 void
2587 Editor::play_selected_region ()
2588 {
2589         nframes64_t start = max_frames;
2590         nframes64_t end = 0;
2591         RegionSelection rs;
2592
2593         get_regions_for_action (rs);
2594
2595         if (rs.empty()) {
2596                 return;
2597         }
2598
2599         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2600                 if ((*i)->region()->position() < start) {
2601                         start = (*i)->region()->position();
2602                 }
2603                 if ((*i)->region()->last_frame() + 1 > end) {
2604                         end = (*i)->region()->last_frame() + 1;
2605                 }
2606         }
2607
2608         session->request_bounded_roll (start, end);
2609 }
2610
2611 void
2612 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2613 {
2614         session->audition_region (region);
2615 }
2616
2617 void
2618 Editor::build_interthread_progress_window ()
2619 {
2620         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2621
2622         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2623
2624         interthread_progress_window->set_border_width (12);
2625         interthread_progress_window->get_vbox()->set_spacing (6);
2626
2627         interthread_progress_label.set_alignment (0.5, 0.5);
2628
2629         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2630         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2631
2632         // GTK2FIX: this button needs a modifiable label
2633
2634         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2635         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2636
2637         interthread_cancel_button.add (interthread_cancel_label);
2638
2639         interthread_progress_window->set_default_size (200, 100);
2640 }
2641
2642 void
2643 Editor::interthread_cancel_clicked ()
2644 {
2645         if (current_interthread_info) {
2646                 current_interthread_info->cancel = true;
2647         }
2648 }
2649
2650 void
2651 Editor::region_from_selection ()
2652 {
2653         if (clicked_axisview == 0) {
2654                 return;
2655         }
2656
2657         if (selection->time.empty()) {
2658                 return;
2659         }
2660
2661         nframes64_t start = selection->time[clicked_selection].start;
2662         nframes64_t end = selection->time[clicked_selection].end;
2663
2664         TrackSelection tracks = get_tracks_for_range_action ();
2665
2666         nframes64_t selection_cnt = end - start + 1;
2667
2668         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2669                 boost::shared_ptr<Region> current;
2670                 boost::shared_ptr<Playlist> pl;
2671                 nframes64_t internal_start;
2672                 string new_name;
2673
2674                 if ((pl = (*i)->playlist()) == 0) {
2675                         continue;
2676                 }
2677
2678                 if ((current = pl->top_region_at (start)) == 0) {
2679                         continue;
2680                 }
2681
2682                 internal_start = start - current->position();
2683                 session->region_name (new_name, current->name(), true);
2684                 boost::shared_ptr<Region> region (RegionFactory::create (current,
2685                                 internal_start, selection_cnt, new_name));
2686         }
2687 }
2688
2689 void
2690 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2691 {
2692         if (selection->time.empty() || selection->tracks.empty()) {
2693                 return;
2694         }
2695
2696         nframes64_t start = selection->time[clicked_selection].start;
2697         nframes64_t end = selection->time[clicked_selection].end;
2698
2699         sort_track_selection ();
2700
2701         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2702                 boost::shared_ptr<Region> current;
2703                 boost::shared_ptr<Playlist> playlist;
2704                 nframes64_t internal_start;
2705                 string new_name;
2706
2707                 if ((playlist = (*i)->playlist()) == 0) {
2708                         continue;
2709                 }
2710
2711                 if ((current = playlist->top_region_at(start)) == 0) {
2712                         continue;
2713                 }
2714
2715                 internal_start = start - current->position();
2716                 session->region_name (new_name, current->name(), true);
2717
2718                 new_regions.push_back (RegionFactory::create (current,
2719                                         internal_start, end - start + 1, new_name));
2720         }
2721 }
2722
2723 void
2724 Editor::split_multichannel_region ()
2725 {
2726         RegionSelection rs;
2727
2728         get_regions_for_action (rs);
2729
2730         if (rs.empty()) {
2731                 return;
2732         }
2733
2734         vector< boost::shared_ptr<Region> > v;
2735
2736         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2737                 (*x)->region()->separate_by_channel (*session, v);
2738         }
2739 }
2740
2741 void
2742 Editor::new_region_from_selection ()
2743 {
2744         region_from_selection ();
2745         cancel_selection ();
2746 }
2747
2748 static void
2749 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2750 {
2751         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2752         case OverlapNone:
2753                 break;
2754         default:
2755                 rs->push_back (rv);
2756         }
2757 }
2758
2759 /** Return either:
2760  *    - selected tracks, or if there are none...
2761  *    - tracks containing selected regions, or if there are none...
2762  *    - all tracks
2763  * @return tracks.
2764  */
2765 TrackSelection
2766 Editor::get_tracks_for_range_action () const
2767 {
2768         TrackSelection t;
2769
2770         if (selection->tracks.empty()) {
2771
2772                 /* use tracks with selected regions */
2773
2774                 RegionSelection rs = selection->regions;
2775
2776                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2777                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2778
2779                         if (!t.contains (tv)) {
2780                                 t.push_back (tv);
2781                         }
2782                 }
2783
2784                 if (t.empty()) {
2785                         /* no regions and no tracks: use all tracks */
2786                         t = track_views;
2787                 }
2788
2789         } else {
2790
2791                 t = selection->tracks;
2792         }
2793
2794         return t;
2795 }
2796
2797 void
2798 Editor::separate_regions_between (const TimeSelection& ts)
2799 {
2800         bool in_command = false;
2801         boost::shared_ptr<Playlist> playlist;
2802         RegionSelection new_selection;
2803
2804         TrackSelection tmptracks = get_tracks_for_range_action ();
2805         sort_track_selection (&tmptracks);
2806
2807         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2808
2809                 RouteTimeAxisView* rtv;
2810
2811                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2812
2813                         if (rtv->is_track()) {
2814
2815                                 /* no edits to destructive tracks */
2816
2817                                 if (rtv->track()->diskstream()->destructive()) {
2818                                         continue;
2819                                 }
2820
2821                                 if ((playlist = rtv->playlist()) != 0) {
2822
2823                                         XMLNode *before;
2824                                         bool got_some;
2825
2826                                         before = &(playlist->get_state());
2827                                         got_some = false;
2828
2829                                         /* XXX need to consider musical time selections here at some point */
2830
2831                                         double speed = rtv->get_diskstream()->speed();
2832
2833
2834                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2835
2836                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2837                                                                 mem_fun(*this, &Editor::collect_new_region_view));
2838                                                 latest_regionviews.clear ();
2839
2840                                                 playlist->partition ((nframes64_t)((*t).start * speed),
2841                                                                 (nframes64_t)((*t).end * speed), true);
2842
2843                                                 c.disconnect ();
2844
2845                                                 if (!latest_regionviews.empty()) {
2846
2847                                                         got_some = true;
2848
2849                                                         rtv->view()->foreach_regionview (bind (
2850                                                                                 sigc::ptr_fun (add_if_covered),
2851                                                                                 &(*t), &new_selection));
2852
2853                                                         if (!in_command) {
2854                                                                 begin_reversible_command (_("separate"));
2855                                                                 in_command = true;
2856                                                         }
2857
2858                                                         session->add_command(new MementoCommand<Playlist>(
2859                                                                         *playlist, before, &playlist->get_state()));
2860                                                 }
2861                                         }
2862
2863                                         if (!got_some) {
2864                                                 delete before;
2865                                         }
2866                                 }
2867                         }
2868                 }
2869         }
2870
2871         if (in_command) {
2872                 selection->set (new_selection);
2873                 set_mouse_mode (MouseObject);
2874
2875                 commit_reversible_command ();
2876         }
2877 }
2878
2879 /** Take tracks from get_tracks_for_range_action and cut any regions
2880  *  on those tracks so that the tracks are empty over the time
2881  *  selection.
2882  */
2883 void
2884 Editor::separate_region_from_selection ()
2885 {
2886         /* preferentially use *all* ranges in the time selection if we're in range mode
2887            to allow discontiguous operation, since get_edit_op_range() currently
2888            returns a single range.
2889         */
2890
2891         if (mouse_mode == MouseRange && !selection->time.empty()) {
2892
2893                 separate_regions_between (selection->time);
2894
2895         } else {
2896
2897                 nframes64_t start;
2898                 nframes64_t end;
2899
2900                 if (get_edit_op_range (start, end)) {
2901
2902                         AudioRange ar (start, end, 1);
2903                         TimeSelection ts;
2904                         ts.push_back (ar);
2905
2906                         separate_regions_between (ts);
2907                 }
2908         }
2909 }
2910
2911 void
2912 Editor::separate_region_from_punch ()
2913 {
2914         Location* loc  = session->locations()->auto_punch_location();
2915         if (loc) {
2916                 separate_regions_using_location (*loc);
2917         }
2918 }
2919
2920 void
2921 Editor::separate_region_from_loop ()
2922 {
2923         Location* loc  = session->locations()->auto_loop_location();
2924         if (loc) {
2925                 separate_regions_using_location (*loc);
2926         }
2927 }
2928
2929 void
2930 Editor::separate_regions_using_location (Location& loc)
2931 {
2932         if (loc.is_mark()) {
2933                 return;
2934         }
2935
2936         AudioRange ar (loc.start(), loc.end(), 1);
2937         TimeSelection ts;
2938
2939         ts.push_back (ar);
2940
2941         separate_regions_between (ts);
2942 }
2943
2944 void
2945 Editor::crop_region_to_selection ()
2946 {
2947         if (!selection->time.empty()) {
2948
2949                 crop_region_to (selection->time.start(), selection->time.end_frame());
2950
2951         } else {
2952
2953                 nframes64_t start;
2954                 nframes64_t end;
2955
2956                 if (get_edit_op_range (start, end)) {
2957                         crop_region_to (start, end);
2958                 }
2959         }
2960
2961 }
2962
2963 void
2964 Editor::crop_region_to (nframes64_t start, nframes64_t end)
2965 {
2966         vector<boost::shared_ptr<Playlist> > playlists;
2967         boost::shared_ptr<Playlist> playlist;
2968         TrackSelection* ts;
2969
2970         if (selection->tracks.empty()) {
2971                 ts = &track_views;
2972         } else {
2973                 sort_track_selection ();
2974                 ts = &selection->tracks;
2975         }
2976
2977         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2978
2979                 RouteTimeAxisView* rtv;
2980
2981                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2982
2983                         boost::shared_ptr<Track> t = rtv->track();
2984
2985                         if (t != 0 && ! t->diskstream()->destructive()) {
2986
2987                                 if ((playlist = rtv->playlist()) != 0) {
2988                                         playlists.push_back (playlist);
2989                                 }
2990                         }
2991                 }
2992         }
2993
2994         if (playlists.empty()) {
2995                 return;
2996         }
2997
2998         nframes64_t the_start;
2999         nframes64_t the_end;
3000         nframes64_t cnt;
3001
3002         begin_reversible_command (_("trim to selection"));
3003
3004         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3005
3006                 boost::shared_ptr<Region> region;
3007
3008                 the_start = start;
3009
3010                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3011                         continue;
3012                 }
3013
3014                 /* now adjust lengths to that we do the right thing
3015                    if the selection extends beyond the region
3016                 */
3017
3018                 the_start = max (the_start, (nframes64_t) region->position());
3019                 if (max_frames - the_start < region->length()) {
3020                         the_end = the_start + region->length() - 1;
3021                 } else {
3022                         the_end = max_frames;
3023                 }
3024                 the_end = min (end, the_end);
3025                 cnt = the_end - the_start + 1;
3026
3027                 XMLNode &before = (*i)->get_state();
3028                 region->trim_to (the_start, cnt, this);
3029                 XMLNode &after = (*i)->get_state();
3030                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3031         }
3032
3033         commit_reversible_command ();
3034 }
3035
3036 void
3037 Editor::region_fill_track ()
3038 {
3039         nframes64_t end;
3040         RegionSelection rs;
3041
3042         get_regions_for_action (rs);
3043
3044         if (!session || rs.empty()) {
3045                 return;
3046         }
3047
3048         end = session->current_end_frame ();
3049
3050         begin_reversible_command (_("region fill"));
3051
3052         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3053
3054                 boost::shared_ptr<Region> region ((*i)->region());
3055
3056                 boost::shared_ptr<Playlist> pl = region->playlist();
3057
3058                 if (end <= region->last_frame()) {
3059                         return;
3060                 }
3061
3062                 double times = (double) (end - region->last_frame()) / (double) region->length();
3063
3064                 if (times == 0) {
3065                         return;
3066                 }
3067
3068                 XMLNode &before = pl->get_state();
3069                 pl->add_region (RegionFactory::create (region), region->last_frame(), times);
3070                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3071         }
3072
3073         commit_reversible_command ();
3074 }
3075
3076 void
3077 Editor::region_fill_selection ()
3078 {
3079         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3080                 return;
3081         }
3082
3083         if (selection->time.empty()) {
3084                 return;
3085         }
3086
3087         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3088         if (region == 0) {
3089                 return;
3090         }
3091
3092         nframes64_t start = selection->time[clicked_selection].start;
3093         nframes64_t end = selection->time[clicked_selection].end;
3094
3095         boost::shared_ptr<Playlist> playlist;
3096
3097         if (selection->tracks.empty()) {
3098                 return;
3099         }
3100
3101         nframes64_t selection_length = end - start;
3102         float times = (float)selection_length / region->length();
3103
3104         begin_reversible_command (_("fill selection"));
3105
3106         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3107
3108                 if ((playlist = (*i)->playlist()) == 0) {
3109                         continue;
3110                 }
3111
3112                 XMLNode &before = playlist->get_state();
3113                 playlist->add_region (RegionFactory::create (region), start, times);
3114                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3115         }
3116
3117         commit_reversible_command ();
3118 }
3119
3120 void
3121 Editor::set_region_sync_from_edit_point ()
3122 {
3123         nframes64_t where = get_preferred_edit_position ();
3124         RegionSelection rs;
3125         get_regions_for_action (rs);
3126         set_sync_point (where, rs);
3127 }
3128
3129 void
3130 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3131 {
3132         bool in_command = false;
3133
3134         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3135
3136                 if (!(*r)->region()->covers (where)) {
3137                         continue;
3138                 }
3139
3140                 boost::shared_ptr<Region> region ((*r)->region());
3141
3142                 if (!in_command) {
3143                         begin_reversible_command (_("set sync point"));
3144                         in_command = true;
3145                 }
3146
3147                 XMLNode &before = region->playlist()->get_state();
3148                 region->set_sync_position (where);
3149                 XMLNode &after = region->playlist()->get_state();
3150                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3151         }
3152
3153         if (in_command) {
3154                 commit_reversible_command ();
3155         }
3156 }
3157
3158 /** Remove the sync positions of the selection */
3159 void
3160 Editor::remove_region_sync ()
3161 {
3162         RegionSelection rs;
3163
3164         get_regions_for_action (rs);
3165
3166         if (rs.empty()) {
3167                 return;
3168         }
3169
3170         begin_reversible_command (_("remove sync"));
3171         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3172
3173                 XMLNode &before = (*i)->region()->playlist()->get_state();
3174                 (*i)->region()->clear_sync_position ();
3175                 XMLNode &after = (*i)->region()->playlist()->get_state();
3176                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3177         }
3178         commit_reversible_command ();
3179 }
3180
3181 void
3182 Editor::naturalize ()
3183 {
3184         RegionSelection rs;
3185
3186         get_regions_for_action (rs);
3187
3188         if (rs.empty()) {
3189                 return;
3190         }
3191
3192         begin_reversible_command (_("naturalize"));
3193         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3194                 XMLNode &before = (*i)->region()->get_state();
3195                 (*i)->region()->move_to_natural_position (this);
3196                 XMLNode &after = (*i)->region()->get_state();
3197                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3198         }
3199         commit_reversible_command ();
3200 }
3201
3202 void
3203 Editor::align (RegionPoint what)
3204 {
3205         RegionSelection rs;
3206
3207         get_regions_for_action (rs);
3208         nframes64_t where = get_preferred_edit_position();
3209
3210         if (!rs.empty()) {
3211                 align_selection (what, where, rs);
3212         } else {
3213
3214                 RegionSelection rs;
3215                 get_regions_at (rs, where, selection->tracks);
3216                 align_selection (what, where, rs);
3217         }
3218 }
3219
3220 void
3221 Editor::align_relative (RegionPoint what)
3222 {
3223         nframes64_t where = get_preferred_edit_position();
3224         RegionSelection rs;
3225
3226         get_regions_for_action (rs);
3227
3228         if (!rs.empty()) {
3229                 align_selection_relative (what, where, rs);
3230         }
3231 }
3232
3233 struct RegionSortByTime {
3234     bool operator() (const RegionView* a, const RegionView* b) {
3235             return a->region()->position() < b->region()->position();
3236     }
3237 };
3238
3239 void
3240 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3241 {
3242         if (rs.empty()) {
3243                 return;
3244         }
3245
3246         nframes64_t distance = 0;
3247         nframes64_t pos = 0;
3248         int dir = 1;
3249
3250         list<RegionView*> sorted;
3251         rs.by_position (sorted);
3252
3253         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3254
3255         switch (point) {
3256         case Start:
3257                 pos = position;
3258                 if (position > r->position()) {
3259                         distance = position - r->position();
3260                 } else {
3261                         distance = r->position() - position;
3262                         dir = -1;
3263                 }
3264                 break;
3265
3266         case End:
3267                 if (position > r->last_frame()) {
3268                         distance = position - r->last_frame();
3269                         pos = r->position() + distance;
3270                 } else {
3271                         distance = r->last_frame() - position;
3272                         pos = r->position() - distance;
3273                         dir = -1;
3274                 }
3275                 break;
3276
3277         case SyncPoint:
3278                 pos = r->adjust_to_sync (position);
3279                 if (pos > r->position()) {
3280                         distance = pos - r->position();
3281                 } else {
3282                         distance = r->position() - pos;
3283                         dir = -1;
3284                 }
3285                 break;
3286         }
3287
3288         if (pos == r->position()) {
3289                 return;
3290         }
3291
3292         begin_reversible_command (_("align selection (relative)"));
3293
3294         /* move first one specially */
3295
3296         XMLNode &before = r->playlist()->get_state();
3297         r->set_position (pos, this);
3298         XMLNode &after = r->playlist()->get_state();
3299         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3300
3301         /* move rest by the same amount */
3302
3303         sorted.pop_front();
3304
3305         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3306
3307                 boost::shared_ptr<Region> region ((*i)->region());
3308
3309                 XMLNode &before = region->playlist()->get_state();
3310
3311                 if (dir > 0) {
3312                         region->set_position (region->position() + distance, this);
3313                 } else {
3314                         region->set_position (region->position() - distance, this);
3315                 }
3316
3317                 XMLNode &after = region->playlist()->get_state();
3318                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3319
3320         }
3321
3322         commit_reversible_command ();
3323 }
3324
3325 void
3326 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3327 {
3328         if (rs.empty()) {
3329                 return;
3330         }
3331
3332         begin_reversible_command (_("align selection"));
3333
3334         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3335                 align_region_internal ((*i)->region(), point, position);
3336         }
3337
3338         commit_reversible_command ();
3339 }
3340
3341 void
3342 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3343 {
3344         begin_reversible_command (_("align region"));
3345         align_region_internal (region, point, position);
3346         commit_reversible_command ();
3347 }
3348
3349 void
3350 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3351 {
3352         XMLNode &before = region->playlist()->get_state();
3353
3354         switch (point) {
3355         case SyncPoint:
3356                 region->set_position (region->adjust_to_sync (position), this);
3357                 break;
3358
3359         case End:
3360                 if (position > region->length()) {
3361                         region->set_position (position - region->length(), this);
3362                 }
3363                 break;
3364
3365         case Start:
3366                 region->set_position (position, this);
3367                 break;
3368         }
3369
3370         XMLNode &after = region->playlist()->get_state();
3371         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3372 }
3373
3374 void
3375 Editor::trim_region_front ()
3376 {
3377         trim_region (true);
3378 }
3379
3380 void
3381 Editor::trim_region_back ()
3382 {
3383         trim_region (false);
3384 }
3385
3386 void
3387 Editor::trim_region (bool front)
3388 {
3389         nframes64_t where = get_preferred_edit_position();
3390         RegionSelection rs;
3391
3392         get_regions_for_action (rs);
3393
3394         if (rs.empty()) {
3395                 return;
3396         }
3397
3398         begin_reversible_command (front ? _("trim front") : _("trim back"));
3399
3400         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3401                 if (!(*i)->region()->locked()) {
3402                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
3403                         XMLNode &before = pl->get_state();
3404                         if (front) {
3405                                 (*i)->region()->trim_front (where, this);
3406                         } else {
3407                                 (*i)->region()->trim_end (where, this);
3408                         }
3409                         XMLNode &after = pl->get_state();
3410                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
3411                 }
3412         }
3413
3414         commit_reversible_command ();
3415 }
3416
3417 /** Trim the end of the selected regions to the position of the edit cursor */
3418 void
3419 Editor::trim_region_to_loop ()
3420 {
3421         Location* loc = session->locations()->auto_loop_location();
3422         if (!loc) {
3423                 return;
3424         }
3425         trim_region_to_location (*loc, _("trim to loop"));
3426 }
3427
3428 void
3429 Editor::trim_region_to_punch ()
3430 {
3431         Location* loc = session->locations()->auto_punch_location();
3432         if (!loc) {
3433                 return;
3434         }
3435         trim_region_to_location (*loc, _("trim to punch"));
3436 }
3437 void
3438 Editor::trim_region_to_location (const Location& loc, const char* str)
3439 {
3440         RegionSelection rs;
3441
3442         get_regions_for_action (rs);
3443
3444         begin_reversible_command (str);
3445
3446         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3447                 RegionView* rv = (*x);
3448
3449                 /* require region to span proposed trim */
3450                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3451                 case OverlapInternal:
3452                         break;
3453                 default:
3454                         continue;
3455                 }
3456
3457                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3458                 if (!tav) {
3459                         return;
3460                 }
3461
3462                 float speed = 1.0;
3463                 nframes64_t start;
3464                 nframes64_t end;
3465
3466                 if (tav->get_diskstream() != 0) {
3467                         speed = tav->get_diskstream()->speed();
3468                 }
3469
3470                 start = session_frame_to_track_frame (loc.start(), speed);
3471                 end = session_frame_to_track_frame (loc.end(), speed);
3472
3473                 XMLNode &before = rv->region()->playlist()->get_state();
3474                 rv->region()->trim_to (start, (end - start), this);
3475                 XMLNode &after = rv->region()->playlist()->get_state();
3476                 session->add_command(new MementoCommand<Playlist>(
3477                                 *(rv->region()->playlist()), &before, &after));
3478         }
3479
3480         commit_reversible_command ();
3481 }
3482
3483 void
3484 Editor::trim_region_to_edit_point ()
3485 {
3486         RegionSelection rs;
3487
3488         get_regions_for_action (rs);
3489
3490         nframes64_t where = get_preferred_edit_position();
3491
3492         begin_reversible_command (_("trim region start to edit point"));
3493
3494         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3495                 RegionView* rv = (*x);
3496
3497                 /* require region to cover trim */
3498                 if (!rv->region()->covers (where)) {
3499                         continue;
3500                 }
3501
3502                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3503                 if (!tav) {
3504                         return;
3505                 }
3506
3507                 float speed = 1.0;
3508
3509                 if (tav->get_diskstream() != 0) {
3510                         speed = tav->get_diskstream()->speed();
3511                 }
3512
3513                 XMLNode &before = rv->region()->playlist()->get_state();
3514                 rv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3515                 XMLNode &after = rv->region()->playlist()->get_state();
3516                 session->add_command(new MementoCommand<Playlist>(
3517                                 *(rv->region()->playlist()), &before, &after));
3518         }
3519
3520         commit_reversible_command ();
3521 }
3522
3523 void
3524 Editor::trim_region_from_edit_point ()
3525 {
3526         RegionSelection rs;
3527
3528         get_regions_for_action (rs);
3529
3530         nframes64_t where = get_preferred_edit_position();
3531
3532         begin_reversible_command (_("trim region end to edit point"));
3533
3534         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3535                 RegionView* rv = (*x);
3536
3537                 /* require region to cover trim */
3538                 if (!rv->region()->covers (where)) {
3539                         continue;
3540                 }
3541
3542                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3543                 if (!tav) {
3544                         return;
3545                 }
3546
3547                 float speed = 1.0;
3548
3549                 if (tav->get_diskstream() != 0) {
3550                         speed = tav->get_diskstream()->speed();
3551                 }
3552
3553                 XMLNode &before = rv->region()->playlist()->get_state();
3554                 rv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3555                 XMLNode &after = rv->region()->playlist()->get_state();
3556                 session->add_command(new MementoCommand<Playlist>(
3557                                 *(rv->region()->playlist()), &before, &after));
3558         }
3559
3560         commit_reversible_command ();
3561 }
3562
3563 void
3564 Editor::trim_region_to_previous_region_end ()
3565 {
3566         return trim_to_region(false);
3567 }
3568
3569 void
3570 Editor::trim_region_to_next_region_start ()
3571 {
3572         return trim_to_region(true);
3573 }
3574
3575 void
3576 Editor::trim_to_region(bool forward)
3577 {
3578         RegionSelection rs;
3579
3580         get_regions_for_action (rs);
3581
3582         begin_reversible_command (_("trim to region"));
3583
3584         boost::shared_ptr<Region> next_region;
3585
3586         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3587
3588                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3589
3590                 if (!arv) {
3591                         continue;
3592                 }
3593
3594                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3595
3596                 if (!atav) {
3597                         return;
3598                 }
3599
3600                 float speed = 1.0;
3601
3602                 if (atav->get_diskstream() != 0) {
3603                         speed = atav->get_diskstream()->speed();
3604                 }
3605
3606
3607                 boost::shared_ptr<Region> region = arv->region();
3608                 boost::shared_ptr<Playlist> playlist (region->playlist());
3609
3610                 XMLNode &before = playlist->get_state();
3611
3612                 if(forward){
3613
3614                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3615
3616                     if(!next_region){
3617                         continue;
3618                     }
3619
3620                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3621                     arv->region_changed (Change (LengthChanged));
3622                 }
3623                 else {
3624
3625                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3626
3627                     if(!next_region){
3628                         continue;
3629                     }
3630
3631                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3632                     arv->region_changed (Change (LengthChanged|PositionChanged|StartChanged));
3633                 }
3634
3635                 XMLNode &after = playlist->get_state();
3636                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3637         }
3638
3639         commit_reversible_command ();
3640 }
3641
3642 void
3643 Editor::unfreeze_route ()
3644 {
3645         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3646                 return;
3647         }
3648
3649         clicked_routeview->track()->unfreeze ();
3650 }
3651
3652 void*
3653 Editor::_freeze_thread (void* arg)
3654 {
3655         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3656         return static_cast<Editor*>(arg)->freeze_thread ();
3657 }
3658
3659 void*
3660 Editor::freeze_thread ()
3661 {
3662         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3663         current_interthread_info->done = true;
3664         return 0;
3665 }
3666
3667 gint
3668 Editor::freeze_progress_timeout (void */*arg*/)
3669 {
3670         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3671         return !(current_interthread_info->done || current_interthread_info->cancel);
3672 }
3673
3674 void
3675 Editor::freeze_route ()
3676 {
3677         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3678                 return;
3679         }
3680
3681         InterThreadInfo itt;
3682
3683         if (interthread_progress_window == 0) {
3684                 build_interthread_progress_window ();
3685         }
3686
3687         interthread_progress_window->set_title (_("Freeze"));
3688         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3689         interthread_progress_window->show_all ();
3690         interthread_progress_bar.set_fraction (0.0f);
3691         interthread_progress_label.set_text ("");
3692         interthread_cancel_label.set_text (_("Cancel Freeze"));
3693         current_interthread_info = &itt;
3694
3695         interthread_progress_connection =
3696           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3697
3698         itt.done = false;
3699         itt.cancel = false;
3700         itt.progress = 0.0f;
3701
3702         pthread_attr_t attr;
3703         pthread_attr_init(&attr);
3704         pthread_attr_setstacksize(&attr, 500000);
3705
3706         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3707
3708         pthread_attr_destroy(&attr);
3709
3710         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3711
3712         while (!itt.done && !itt.cancel) {
3713                 gtk_main_iteration ();
3714         }
3715
3716         interthread_progress_connection.disconnect ();
3717         interthread_progress_window->hide_all ();
3718         current_interthread_info = 0;
3719         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3720 }
3721
3722 void
3723 Editor::bounce_range_selection (bool replace, bool enable_processing)
3724 {
3725         if (selection->time.empty()) {
3726                 return;
3727         }
3728
3729         TrackSelection views = selection->tracks;
3730
3731         nframes64_t start = selection->time[clicked_selection].start;
3732         nframes64_t end = selection->time[clicked_selection].end;
3733         nframes64_t cnt = end - start + 1;
3734
3735         begin_reversible_command (_("bounce range"));
3736
3737         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3738
3739                 RouteTimeAxisView* rtv;
3740
3741                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3742                         continue;
3743                 }
3744
3745                 boost::shared_ptr<Playlist> playlist;
3746
3747                 if ((playlist = rtv->playlist()) == 0) {
3748                         return;
3749                 }
3750
3751                 InterThreadInfo itt;
3752
3753                 itt.done = false;
3754                 itt.cancel = false;
3755                 itt.progress = false;
3756
3757                 XMLNode &before = playlist->get_state();
3758                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3759
3760                 if (replace) {
3761                         list<AudioRange> ranges;
3762                         ranges.push_back (AudioRange (start, start+cnt, 0));
3763                         playlist->cut (ranges); // discard result
3764                         playlist->add_region (r, start);
3765                 }
3766
3767                 XMLNode &after = playlist->get_state();
3768                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3769         }
3770
3771         commit_reversible_command ();
3772 }
3773
3774 /** Cut selected regions, automation points or a time range */
3775 void
3776 Editor::cut ()
3777 {
3778         cut_copy (Cut);
3779 }
3780
3781 /** Copy selected regions, automation points or a time range */
3782 void
3783 Editor::copy ()
3784 {
3785         cut_copy (Copy);
3786 }
3787
3788
3789 /** @return true if a Cut, Copy or Clear is possible */
3790 bool
3791 Editor::can_cut_copy () const
3792 {
3793         switch (current_mouse_mode()) {
3794
3795         case MouseObject:
3796                 if (!selection->regions.empty() || !selection->points.empty()) {
3797                         return true;
3798                 }
3799                 break;
3800
3801         case MouseRange:
3802                 if (!selection->time.empty()) {
3803                         return true;
3804                 }
3805                 break;
3806
3807         default:
3808                 break;
3809         }
3810
3811         return false;
3812 }
3813
3814
3815 /** Cut, copy or clear selected regions, automation points or a time range.
3816  * @param op Operation (Cut, Copy or Clear)
3817  */
3818 void
3819 Editor::cut_copy (CutCopyOp op)
3820 {
3821         /* only cancel selection if cut/copy is successful.*/
3822
3823         string opname;
3824
3825         switch (op) {
3826         case Cut:
3827                 opname = _("cut");
3828                 break;
3829         case Copy:
3830                 opname = _("copy");
3831                 break;
3832         case Clear:
3833                 opname = _("clear");
3834                 break;
3835         }
3836
3837         /* if we're deleting something, and the mouse is still pressed,
3838            the thing we started a drag for will be gone when we release
3839            the mouse button(s). avoid this. see part 2 at the end of
3840            this function.
3841         */
3842
3843         if (op == Cut || op == Clear) {
3844                 if (_drag) {
3845                         _drag->item()->ungrab (0);
3846                         delete _drag;
3847                         _drag = 0;
3848                 }
3849         }
3850
3851         cut_buffer->clear ();
3852
3853         if (entered_marker) {
3854
3855                 /* cut/delete op while pointing at a marker */
3856
3857                 bool ignored;
3858                 Location* loc = find_location_from_marker (entered_marker, ignored);
3859
3860                 if (session && loc) {
3861                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3862                 }
3863
3864                 break_drag ();
3865                 delete _drag;
3866                 _drag = 0;
3867
3868                 return;
3869         }
3870
3871         if (internal_editing()) {
3872
3873                 switch (current_mouse_mode()) {
3874                 case MouseObject:
3875                 case MouseRange:
3876                         cut_copy_midi (op);
3877                         break;
3878                 default:
3879                         break;
3880                 }
3881
3882         } else {
3883
3884                 RegionSelection rs;
3885
3886                 /* we only want to cut regions if some are selected */
3887
3888                 if (!selection->regions.empty()) {
3889                         get_regions_for_action (rs, false, false);
3890                 }
3891
3892                 switch (current_mouse_mode()) {
3893                 case MouseObject:
3894                         if (!rs.empty() || !selection->points.empty()) {
3895
3896                                 begin_reversible_command (opname + _(" objects"));
3897
3898                                 if (!rs.empty()) {
3899                                         cut_copy_regions (op, rs);
3900
3901                                         if (op == Cut) {
3902                                                 selection->clear_regions ();
3903                                         }
3904                                 }
3905
3906                                 if (!selection->points.empty()) {
3907                                         cut_copy_points (op);
3908
3909                                         if (op == Cut) {
3910                                                 selection->clear_points ();
3911                                         }
3912                                 }
3913
3914                                 commit_reversible_command ();
3915                                 break; // terminate case statement here
3916                         }
3917                         if (!selection->time.empty()) {
3918                                 /* don't cause suprises */
3919                                 break;
3920                         }
3921                         // fall thru if there was nothing selected
3922
3923                 case MouseRange:
3924                         if (selection->time.empty()) {
3925                                 nframes64_t start, end;
3926                                 if (!get_edit_op_range (start, end)) {
3927                                         return;
3928                                 }
3929                                 selection->set ((TimeAxisView*) 0, start, end);
3930                         }
3931
3932                         begin_reversible_command (opname + _(" range"));
3933                         cut_copy_ranges (op);
3934                         commit_reversible_command ();
3935
3936                         if (op == Cut) {
3937                                 selection->clear_time ();
3938                         }
3939
3940                         break;
3941
3942                 default:
3943                         break;
3944                 }
3945         }
3946
3947         if (op == Cut || op == Clear) {
3948                 break_drag ();
3949                 delete _drag;
3950                 _drag = 0;
3951         }
3952 }
3953
3954 /** Cut, copy or clear selected automation points.
3955  * @param op Operation (Cut, Copy or Clear)
3956  */
3957 void
3958 Editor::cut_copy_points (CutCopyOp op)
3959 {
3960         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3961
3962                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3963
3964                 if (atv) {
3965                         atv->cut_copy_clear_objects (selection->points, op);
3966                 }
3967         }
3968 }
3969
3970 /** Cut, copy or clear selected automation points.
3971  * @param op Operation (Cut, Copy or Clear)
3972  */
3973 void
3974 Editor::cut_copy_midi (CutCopyOp op)
3975 {
3976         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
3977                 MidiRegionView* mrv = *i;
3978                 mrv->cut_copy_clear (op);
3979         }
3980 }
3981
3982 struct PlaylistState {
3983     boost::shared_ptr<Playlist> playlist;
3984     XMLNode*  before;
3985 };
3986
3987 struct lt_playlist {
3988     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3989             return a.playlist < b.playlist;
3990     }
3991 };
3992
3993 struct PlaylistMapping {
3994     TimeAxisView* tv;
3995     boost::shared_ptr<Playlist> pl;
3996
3997     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3998 };
3999
4000 /** Remove `clicked_regionview' */
4001 void
4002 Editor::remove_clicked_region ()
4003 {
4004         if (clicked_routeview == 0 || clicked_regionview == 0) {
4005                 return;
4006         }
4007
4008         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4009
4010         begin_reversible_command (_("remove region"));
4011         XMLNode &before = playlist->get_state();
4012         playlist->remove_region (clicked_regionview->region());
4013         XMLNode &after = playlist->get_state();
4014         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4015         commit_reversible_command ();
4016 }
4017
4018
4019 /** Remove the selected regions */
4020 void
4021 Editor::remove_selected_regions ()
4022 {
4023         RegionSelection rs;
4024         get_regions_for_action (rs);
4025
4026         if (!session) {
4027                 return;
4028         }
4029
4030         if (rs.empty()) {
4031                 return;
4032         }
4033
4034         begin_reversible_command (_("remove region"));
4035
4036         list<boost::shared_ptr<Region> > regions_to_remove;
4037
4038         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4039                 // we can't just remove the region(s) in this loop because
4040                 // this removes them from the RegionSelection, and they thus
4041                 // disappear from underneath the iterator, and the ++i above
4042                 // SEGVs in a puzzling fashion.
4043
4044                 // so, first iterate over the regions to be removed from rs and
4045                 // add them to the regions_to_remove list, and then
4046                 // iterate over the list to actually remove them.
4047
4048                 regions_to_remove.push_back ((*i)->region());
4049         }
4050
4051         vector<PlaylistState> playlists;
4052
4053         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4054
4055                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4056
4057                 if (!playlist) {
4058                         // is this check necessary?
4059                         continue;
4060                 }
4061
4062                 vector<PlaylistState>::iterator i;
4063
4064                 //only take state if this is a new playlist.
4065                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4066                         if ((*i).playlist == playlist) {
4067                                 break;
4068                         }
4069                 }
4070
4071                 if (i == playlists.end()) {
4072
4073                         PlaylistState before;
4074                         before.playlist = playlist;
4075                         before.before = &playlist->get_state();
4076
4077                         playlist->freeze ();
4078                         playlists.push_back(before);
4079                 }
4080
4081                 playlist->remove_region (*rl);
4082         }
4083
4084         vector<PlaylistState>::iterator pl;
4085
4086         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4087                 (*pl).playlist->thaw ();
4088                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4089         }
4090
4091         commit_reversible_command ();
4092 }
4093
4094 /** Cut, copy or clear selected regions.
4095  * @param op Operation (Cut, Copy or Clear)
4096  */
4097 void
4098 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4099 {
4100         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4101            a map when we want ordered access to both elements. i think.
4102         */
4103
4104         vector<PlaylistMapping> pmap;
4105
4106         nframes64_t first_position = max_frames;
4107
4108         set<PlaylistState, lt_playlist> freezelist;
4109         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4110
4111         /* get ordering correct before we cut/copy */
4112
4113         rs.sort_by_position_and_track ();
4114
4115         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4116
4117                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4118
4119                 if (op == Cut || op == Clear) {
4120                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4121
4122                         if (pl) {
4123                                 set<PlaylistState, lt_playlist>::iterator fl;
4124
4125                                 //only take state if this is a new playlist.
4126                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4127                                         if ((*fl).playlist == pl) {
4128                                                 break;
4129                                         }
4130                                 }
4131
4132                                 if (fl == freezelist.end()) {
4133                                         PlaylistState before;
4134                                         before.playlist = pl;
4135                                         before.before = &pl->get_state();
4136                                         pl->freeze ();
4137                                         insert_result = freezelist.insert (before);
4138                                 }
4139                         }
4140                 }
4141
4142                 TimeAxisView* tv = &(*x)->get_trackview();
4143                 vector<PlaylistMapping>::iterator z;
4144
4145                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4146                         if ((*z).tv == tv) {
4147                                 break;
4148                         }
4149                 }
4150
4151                 if (z == pmap.end()) {
4152                         pmap.push_back (PlaylistMapping (tv));
4153                 }
4154         }
4155
4156         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4157
4158                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4159
4160                 if (!pl) {
4161                         /* impossible, but this handles it for the future */
4162                         continue;
4163                 }
4164
4165                 TimeAxisView& tv = (*x)->get_trackview();
4166                 boost::shared_ptr<Playlist> npl;
4167                 RegionSelection::iterator tmp;
4168
4169                 tmp = x;
4170                 ++tmp;
4171
4172                 vector<PlaylistMapping>::iterator z;
4173
4174                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4175                         if ((*z).tv == &tv) {
4176                                 break;
4177                         }
4178                 }
4179
4180                 assert (z != pmap.end());
4181
4182                 if (!(*z).pl) {
4183                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4184                         npl->freeze();
4185                         (*z).pl = npl;
4186                 } else {
4187                         npl = (*z).pl;
4188                 }
4189
4190                 boost::shared_ptr<Region> r = (*x)->region();
4191                 boost::shared_ptr<Region> _xx;
4192
4193                 assert (r != 0);
4194
4195                 switch (op) {
4196                 case Cut:
4197                         _xx = RegionFactory::create (r);
4198                         npl->add_region (_xx, r->position() - first_position);
4199                         pl->remove_region (r);
4200                         break;
4201
4202                 case Copy:
4203                         /* copy region before adding, so we're not putting same object into two different playlists */
4204                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4205                         break;
4206
4207                 case Clear:
4208                         pl->remove_region (r);
4209                         break;
4210                 }
4211
4212                 x = tmp;
4213         }
4214
4215         list<boost::shared_ptr<Playlist> > foo;
4216
4217         /* the pmap is in the same order as the tracks in which selected regions occured */
4218
4219         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4220                 (*i).pl->thaw();
4221                 foo.push_back ((*i).pl);
4222         }
4223
4224
4225         if (!foo.empty()) {
4226                 cut_buffer->set (foo);
4227         }
4228
4229         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4230                 (*pl).playlist->thaw ();
4231                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4232         }
4233 }
4234
4235 void
4236 Editor::cut_copy_ranges (CutCopyOp op)
4237 {
4238         TrackSelection* ts;
4239         TrackSelection entered;
4240
4241         if (selection->tracks.empty()) {
4242                 if (!entered_track) {
4243                         return;
4244                 }
4245                 entered.push_back (entered_track);
4246                 ts = &entered;
4247         } else {
4248                 ts = &selection->tracks;
4249         }
4250
4251         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4252                 (*i)->cut_copy_clear (*selection, op);
4253         }
4254 }
4255
4256 void
4257 Editor::paste (float times)
4258 {
4259         paste_internal (get_preferred_edit_position(), times);
4260 }
4261
4262 void
4263 Editor::mouse_paste ()
4264 {
4265         nframes64_t where;
4266         bool ignored;
4267
4268         if (!mouse_frame (where, ignored)) {
4269                 return;
4270         }
4271
4272         snap_to (where);
4273         paste_internal (where, 1);
4274 }
4275
4276 void
4277 Editor::paste_internal (nframes64_t position, float times)
4278 {
4279         bool commit = false;
4280
4281         if (internal_editing()) {
4282                 if (cut_buffer->midi_notes.empty()) {
4283                         return;
4284                 }
4285         } else {
4286                 if (cut_buffer->empty()) {
4287                         return;
4288                 }
4289         }
4290
4291         if (position == max_frames) {
4292                 position = get_preferred_edit_position();
4293         }
4294
4295         begin_reversible_command (_("paste"));
4296
4297         TrackSelection ts;
4298         TrackSelection::iterator i;
4299         size_t nth;
4300
4301         /* get everything in the correct order */
4302
4303         if (!selection->tracks.empty()) {
4304                 sort_track_selection ();
4305                 ts = selection->tracks;
4306         } else if (entered_track) {
4307                 ts.push_back (entered_track);
4308         }
4309
4310         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4311
4312                 /* undo/redo is handled by individual tracks/regions */
4313
4314                 if (internal_editing()) {
4315
4316                         RegionSelection rs;
4317                         RegionSelection::iterator r;
4318                         MidiNoteSelection::iterator cb;
4319
4320                         get_regions_at (rs, position, ts);
4321
4322                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4323                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4324                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4325                                 if (mrv) {
4326                                         mrv->paste (position, times, **cb);
4327                                         ++cb;
4328                                 }
4329                         }
4330
4331                 } else {
4332
4333                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4334                                 commit = true;
4335                         }
4336                 }
4337         }
4338
4339         if (commit) {
4340                 commit_reversible_command ();
4341         }
4342 }
4343
4344 void
4345 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4346 {
4347         boost::shared_ptr<Playlist> playlist;
4348         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4349         RegionSelection foo;
4350
4351         begin_reversible_command (_("duplicate region"));
4352
4353         selection->clear_regions ();
4354
4355         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4356
4357                 boost::shared_ptr<Region> r ((*i)->region());
4358
4359                 TimeAxisView& tv = (*i)->get_time_axis_view();
4360                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4361                 latest_regionviews.clear ();
4362                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4363
4364                 playlist = (*i)->region()->playlist();
4365                 XMLNode &before = playlist->get_state();
4366                 playlist->duplicate (r, r->last_frame(), times);
4367                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4368
4369                 c.disconnect ();
4370
4371                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4372         }
4373
4374         commit_reversible_command ();
4375
4376         if (!foo.empty()) {
4377                 selection->set (foo);
4378         }
4379 }
4380
4381 void
4382 Editor::duplicate_selection (float times)
4383 {
4384         if (selection->time.empty() || selection->tracks.empty()) {
4385                 return;
4386         }
4387
4388         boost::shared_ptr<Playlist> playlist;
4389         vector<boost::shared_ptr<Region> > new_regions;
4390         vector<boost::shared_ptr<Region> >::iterator ri;
4391
4392         create_region_from_selection (new_regions);
4393
4394         if (new_regions.empty()) {
4395                 return;
4396         }
4397
4398         begin_reversible_command (_("duplicate selection"));
4399
4400         ri = new_regions.begin();
4401
4402         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4403                 if ((playlist = (*i)->playlist()) == 0) {
4404                         continue;
4405                 }
4406                 XMLNode &before = playlist->get_state();
4407                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4408                 XMLNode &after = playlist->get_state();
4409                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4410
4411                 ++ri;
4412                 if (ri == new_regions.end()) {
4413                         --ri;
4414                 }
4415         }
4416
4417         commit_reversible_command ();
4418 }
4419
4420 void
4421 Editor::reset_point_selection ()
4422 {
4423         /* reset all selected points to the relevant default value */
4424
4425         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4426
4427                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4428
4429                 if (atv) {
4430                         atv->reset_objects (selection->points);
4431                 }
4432         }
4433 }
4434
4435 void
4436 Editor::center_playhead ()
4437 {
4438         float page = _canvas_width * frames_per_unit;
4439         center_screen_internal (playhead_cursor->current_frame, page);
4440 }
4441
4442 void
4443 Editor::center_edit_point ()
4444 {
4445         float page = _canvas_width * frames_per_unit;
4446         center_screen_internal (get_preferred_edit_position(), page);
4447 }
4448
4449 void
4450 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4451 {
4452         begin_reversible_command (_("clear playlist"));
4453         XMLNode &before = playlist->get_state();
4454         playlist->clear ();
4455         XMLNode &after = playlist->get_state();
4456         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4457         commit_reversible_command ();
4458 }
4459
4460 void
4461 Editor::nudge_track (bool use_edit, bool forwards)
4462 {
4463         boost::shared_ptr<Playlist> playlist;
4464         nframes64_t distance;
4465         nframes64_t next_distance;
4466         nframes64_t start;
4467
4468         if (use_edit) {
4469                 start = get_preferred_edit_position();
4470         } else {
4471                 start = 0;
4472         }
4473
4474         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4475                 return;
4476         }
4477
4478         if (selection->tracks.empty()) {
4479                 return;
4480         }
4481
4482         begin_reversible_command (_("nudge track"));
4483
4484         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4485
4486                 if ((playlist = (*i)->playlist()) == 0) {
4487                         continue;
4488                 }
4489
4490                 XMLNode &before = playlist->get_state();
4491                 playlist->nudge_after (start, distance, forwards);
4492                 XMLNode &after = playlist->get_state();
4493                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4494         }
4495
4496         commit_reversible_command ();
4497 }
4498
4499 void
4500 Editor::remove_last_capture ()
4501 {
4502         vector<string> choices;
4503         string prompt;
4504
4505         if (!session) {
4506                 return;
4507         }
4508
4509         if (Config->get_verify_remove_last_capture()) {
4510                 prompt  = _("Do you really want to destroy the last capture?"
4511                             "\n(This is destructive and cannot be undone)");
4512
4513                 choices.push_back (_("No, do nothing."));
4514                 choices.push_back (_("Yes, destroy it."));
4515
4516                 Gtkmm2ext::Choice prompter (prompt, choices);
4517
4518                 if (prompter.run () == 1) {
4519                         session->remove_last_capture ();
4520                 }
4521
4522         } else {
4523                 session->remove_last_capture();
4524         }
4525 }
4526
4527 void
4528 Editor::normalize_region ()
4529 {
4530         if (!session) {
4531                 return;
4532         }
4533
4534         RegionSelection rs;
4535         get_regions_for_action (rs);
4536
4537         if (rs.empty()) {
4538                 return;
4539         }
4540
4541         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4542         HBox hbox;
4543         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4544         SpinButton spin (0.2, 2);
4545         spin.set_range (-112, 0);
4546         spin.set_increments (0.1, 1);
4547         spin.set_value (0);
4548         hbox.pack_start (spin);
4549         spin.set_value (_last_normalization_value);
4550         hbox.pack_start (*manage (new Label (_("dbFS"))));
4551         hbox.show_all ();
4552         dialog.get_vbox()->pack_start (hbox);
4553         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4554         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4555
4556         if (dialog.run () == RESPONSE_CANCEL) {
4557                 return;
4558         }
4559
4560         begin_reversible_command (_("normalize"));
4561
4562         track_canvas->get_window()->set_cursor (*wait_cursor);
4563         gdk_flush ();
4564
4565         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4566                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4567                 if (!arv)
4568                         continue;
4569                 XMLNode &before = arv->region()->get_state();
4570                 arv->audio_region()->normalize_to (spin.get_value());
4571                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4572         }
4573
4574         commit_reversible_command ();
4575         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4576
4577         _last_normalization_value = spin.get_value ();
4578 }
4579
4580
4581 void
4582 Editor::reset_region_scale_amplitude ()
4583 {
4584         if (!session) {
4585                 return;
4586         }
4587
4588         RegionSelection rs;
4589
4590         get_regions_for_action (rs);
4591
4592         if (rs.empty()) {
4593                 return;
4594         }
4595
4596         begin_reversible_command ("reset gain");
4597
4598         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4599                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4600                 if (!arv)
4601                         continue;
4602                 XMLNode &before = arv->region()->get_state();
4603                 arv->audio_region()->set_scale_amplitude (1.0f);
4604                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4605         }
4606
4607         commit_reversible_command ();
4608 }
4609
4610 void
4611 Editor::adjust_region_scale_amplitude (bool up)
4612 {
4613         if (!session) {
4614                 return;
4615         }
4616
4617         RegionSelection rs;
4618
4619         get_regions_for_action (rs);
4620
4621         if (rs.empty()) {
4622                 return;
4623         }
4624
4625         begin_reversible_command ("denormalize");
4626
4627         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4628                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4629                 if (!arv)
4630                         continue;
4631                 XMLNode &before = arv->region()->get_state();
4632
4633                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4634
4635                 if (up) {
4636                         fraction += 0.05;
4637                         fraction = min (fraction, 1.0);
4638                 } else {
4639                         fraction -= 0.05;
4640                         fraction = max (fraction, 0.0);
4641                 }
4642
4643                 if (!up && fraction <= 0) {
4644                         continue;
4645                 }
4646
4647                 fraction = slider_position_to_gain (fraction);
4648
4649                 if (up && fraction >= 2.0) {
4650                         continue;
4651                 }
4652
4653                 arv->audio_region()->set_scale_amplitude (fraction);
4654                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4655         }
4656
4657         commit_reversible_command ();
4658 }
4659
4660
4661 void
4662 Editor::reverse_region ()
4663 {
4664         if (!session) {
4665                 return;
4666         }
4667
4668         Reverse rev (*session);
4669         apply_filter (rev, _("reverse regions"));
4670 }
4671
4672 void
4673 Editor::strip_region_silence ()
4674 {
4675         if (!session) {
4676                 return;
4677         }
4678
4679         RegionSelection rs;
4680         get_regions_for_action (rs);
4681
4682         if (rs.empty()) {
4683                 return;
4684         }
4685
4686         std::list<boost::shared_ptr<AudioRegion> > ar;
4687
4688         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4689                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4690                 if (arv) {
4691                         ar.push_back (arv->audio_region ());
4692                 }
4693         }
4694
4695         StripSilenceDialog d (ar);
4696         int const r = d.run ();
4697
4698         if (r == Gtk::RESPONSE_OK) {
4699                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4700                 apply_filter (s, _("strip silence"));
4701         }
4702 }
4703
4704 Command*
4705 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4706 {
4707         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4708         mrv.selection_as_notelist (selected);
4709
4710         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4711         v.push_back (selected);
4712
4713         return op (mrv.midi_region()->model(), v);
4714 }
4715
4716 void
4717 Editor::apply_midi_note_edit_op (MidiOperator& op)
4718 {
4719         RegionSelection rs;
4720         Command* cmd;
4721
4722         get_regions_for_action (rs);
4723
4724         if (rs.empty()) {
4725                 return;
4726         }
4727
4728         begin_reversible_command (op.name ());
4729
4730         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4731                 RegionSelection::iterator tmp = r;
4732                 ++tmp;
4733
4734                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4735
4736                 if (mrv) {
4737                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4738                         if (cmd) {
4739                                 (*cmd)();
4740                                 session->add_command (cmd);
4741                         }
4742                 }
4743
4744                 r = tmp;
4745         }
4746
4747         commit_reversible_command ();
4748         rs.clear ();
4749 }
4750
4751 void
4752 Editor::quantize_region ()
4753 {
4754         if (!session) {
4755                 return;
4756         }
4757
4758         QuantizeDialog* qd = new QuantizeDialog (*this);
4759
4760         qd->present ();
4761         const int r = qd->run ();
4762         qd->hide ();
4763
4764         if (r == Gtk::RESPONSE_OK) {
4765                 Quantize quant (*session, Plain,
4766                                 qd->snap_start(), qd->snap_end(),
4767                                 qd->start_grid_size(), qd->end_grid_size(),
4768                                 qd->strength(), qd->swing(), qd->threshold());
4769
4770                 apply_midi_note_edit_op (quant);
4771         }
4772 }
4773
4774 void
4775 Editor::apply_filter (Filter& filter, string command)
4776 {
4777         RegionSelection rs;
4778
4779         get_regions_for_action (rs);
4780
4781         if (rs.empty()) {
4782                 return;
4783         }
4784
4785         begin_reversible_command (command);
4786
4787         track_canvas->get_window()->set_cursor (*wait_cursor);
4788         gdk_flush ();
4789
4790         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4791                 RegionSelection::iterator tmp = r;
4792                 ++tmp;
4793
4794                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4795                 if (arv) {
4796                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4797
4798                         if (arv->audio_region()->apply (filter) == 0) {
4799
4800                                 XMLNode &before = playlist->get_state();
4801
4802                                 if (filter.results.empty ()) {
4803
4804                                         /* no regions returned; remove the old one */
4805                                         playlist->remove_region (arv->region ());
4806
4807                                 } else {
4808
4809                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4810
4811                                         /* first region replaces the old one */
4812                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4813                                         ++res;
4814
4815                                         /* add the rest */
4816                                         while (res != filter.results.end()) {
4817                                                 playlist->add_region (*res, (*res)->position());
4818                                                 ++res;
4819                                         }
4820
4821                                 }
4822
4823                                 XMLNode &after = playlist->get_state();
4824                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4825                         } else {
4826                                 goto out;
4827                         }
4828                 }
4829
4830                 r = tmp;
4831         }
4832
4833         commit_reversible_command ();
4834         rs.clear ();
4835
4836   out:
4837         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4838 }
4839
4840 void
4841 Editor::region_selection_op (void (Region::*pmf)(void))
4842 {
4843         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4844                 Region* region = (*i)->region().get();
4845                 (region->*pmf)();
4846         }
4847 }
4848
4849
4850 void
4851 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4852 {
4853         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4854                 Region* region = (*i)->region().get();
4855                 (region->*pmf)(arg);
4856         }
4857 }
4858
4859 void
4860 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4861 {
4862         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4863                 Region* region = (*i)->region().get();
4864                 (region->*pmf)(yn);
4865         }
4866 }
4867
4868 void
4869 Editor::external_edit_region ()
4870 {
4871         /* more to come */
4872 }
4873
4874 void
4875 Editor::brush (nframes64_t pos)
4876 {
4877         RegionSelection sel;
4878         RegionSelection rs;
4879
4880         get_regions_for_action (rs);
4881
4882         snap_to (pos);
4883
4884         if (rs.empty()) {
4885                 return;
4886         }
4887
4888         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4889                 mouse_brush_insert_region ((*i), pos);
4890         }
4891 }
4892
4893 void
4894 Editor::reset_region_gain_envelopes ()
4895 {
4896         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4897
4898         if (!session || rs.empty()) {
4899                 return;
4900         }
4901
4902         session->begin_reversible_command (_("reset region gain"));
4903
4904         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4905                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4906                 if (arv) {
4907                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4908                         XMLNode& before (alist->get_state());
4909
4910                         arv->audio_region()->set_default_envelope ();
4911                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4912                 }
4913         }
4914
4915         session->commit_reversible_command ();
4916 }
4917
4918 void
4919 Editor::toggle_gain_envelope_visibility ()
4920 {
4921         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4922
4923         if (!session || rs.empty()) {
4924                 return;
4925         }
4926
4927         session->begin_reversible_command (_("region gain envelope visible"));
4928
4929         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4930                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4931                 if (arv) {
4932                         XMLNode &before = arv->region()->get_state ();
4933                         arv->set_envelope_visible (!arv->envelope_visible());
4934                         XMLNode &after = arv->region()->get_state ();
4935                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4936                 }
4937         }
4938
4939         session->commit_reversible_command ();
4940 }
4941
4942 void
4943 Editor::toggle_gain_envelope_active ()
4944 {
4945         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4946
4947         if (!session || rs.empty()) {
4948                 return;
4949         }
4950
4951         session->begin_reversible_command (_("region gain envelope active"));
4952
4953         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4954                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4955                 if (arv) {
4956                         XMLNode &before = arv->region()->get_state ();
4957                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4958                         XMLNode &after = arv->region()->get_state ();
4959                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4960                 }
4961         }
4962
4963         session->commit_reversible_command ();
4964 }
4965
4966 void
4967 Editor::toggle_region_lock ()
4968 {
4969         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4970
4971         if (!session || rs.empty()) {
4972                 return;
4973         }
4974
4975         session->begin_reversible_command (_("region lock"));
4976
4977         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4978                 XMLNode &before = (*i)->region()->get_state ();
4979                 (*i)->region()->set_locked (!(*i)->region()->locked());
4980                 XMLNode &after = (*i)->region()->get_state ();
4981                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
4982         }
4983
4984         session->commit_reversible_command ();
4985 }
4986
4987 void
4988 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4989 {
4990         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4991
4992         if (!session || rs.empty()) {
4993                 return;
4994         }
4995
4996         session->begin_reversible_command (_("region lock style"));
4997
4998         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4999                 XMLNode &before = (*i)->region()->get_state ();
5000                 (*i)->region()->set_position_lock_style (ps);
5001                 XMLNode &after = (*i)->region()->get_state ();
5002                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5003         }
5004
5005         session->commit_reversible_command ();
5006 }
5007
5008
5009 void
5010 Editor::toggle_region_mute ()
5011 {
5012         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5013
5014         if (!session || rs.empty()) {
5015                 return;
5016         }
5017
5018         session->begin_reversible_command (_("region mute"));
5019
5020         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5021                 XMLNode &before = (*i)->region()->get_state ();
5022                 (*i)->region()->set_muted (!(*i)->region()->muted());
5023                 XMLNode &after = (*i)->region()->get_state ();
5024                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5025         }
5026
5027         session->commit_reversible_command ();
5028 }
5029
5030 void
5031 Editor::toggle_region_opaque ()
5032 {
5033         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5034
5035         if (!session || rs.empty()) {
5036                 return;
5037         }
5038
5039         session->begin_reversible_command (_("region opacity"));
5040
5041         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5042                 XMLNode &before = (*i)->region()->get_state ();
5043                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5044                 XMLNode &after = (*i)->region()->get_state ();
5045                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5046         }
5047
5048         session->commit_reversible_command ();
5049 }
5050
5051 void
5052 Editor::toggle_record_enable ()
5053 {
5054         bool new_state = false;
5055         bool first = true;
5056         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5057                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5058                 if (!rtav)
5059                         continue;
5060                 if (!rtav->is_track())
5061                         continue;
5062
5063                 if (first) {
5064                         new_state = !rtav->track()->record_enabled();
5065                         first = false;
5066                 }
5067
5068                 rtav->track()->set_record_enable(new_state, this);
5069         }
5070 }
5071
5072
5073 void
5074 Editor::set_fade_length (bool in)
5075 {
5076         RegionSelection rs;
5077
5078         get_regions_for_action (rs, true);
5079
5080         if (rs.empty()) {
5081                 return;
5082         }
5083
5084         /* we need a region to measure the offset from the start */
5085
5086         RegionView* rv = rs.front ();
5087
5088         nframes64_t pos = get_preferred_edit_position();
5089         nframes64_t len;
5090         char* cmd;
5091
5092         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5093                 /* edit point is outside the relevant region */
5094                 return;
5095         }
5096
5097         if (in) {
5098                 if (pos <= rv->region()->position()) {
5099                         /* can't do it */
5100                         return;
5101                 }
5102                 len = pos - rv->region()->position();
5103                 cmd = _("set fade in length");
5104         } else {
5105                 if (pos >= rv->region()->last_frame()) {
5106                         /* can't do it */
5107                         return;
5108                 }
5109                 len = rv->region()->last_frame() - pos;
5110                 cmd = _("set fade out length");
5111         }
5112
5113         begin_reversible_command (cmd);
5114
5115         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5116                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5117
5118                 if (!tmp) {
5119                         return;
5120                 }
5121
5122                 boost::shared_ptr<AutomationList> alist;
5123                 if (in) {
5124                         alist = tmp->audio_region()->fade_in();
5125                 } else {
5126                         alist = tmp->audio_region()->fade_out();
5127                 }
5128
5129                 XMLNode &before = alist->get_state();
5130
5131                 if (in) {
5132                         tmp->audio_region()->set_fade_in_length (len);
5133                         tmp->audio_region()->set_fade_in_active (true);
5134                 } else {
5135                         tmp->audio_region()->set_fade_out_length (len);
5136                         tmp->audio_region()->set_fade_out_active (true);
5137                 }
5138
5139                 XMLNode &after = alist->get_state();
5140                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5141         }
5142
5143         commit_reversible_command ();
5144 }
5145
5146 void
5147 Editor::toggle_fade_active (bool in)
5148 {
5149         RegionSelection rs;
5150
5151         get_regions_for_action (rs);
5152
5153         if (rs.empty()) {
5154                 return;
5155         }
5156
5157         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5158         bool have_switch = false;
5159         bool yn = false;
5160
5161         begin_reversible_command (cmd);
5162
5163         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5164                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5165
5166                 if (!tmp) {
5167                         return;
5168                 }
5169
5170                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5171
5172                 /* make the behaviour consistent across all regions */
5173
5174                 if (!have_switch) {
5175                         if (in) {
5176                                 yn = region->fade_in_active();
5177                         } else {
5178                                 yn = region->fade_out_active();
5179                         }
5180                         have_switch = true;
5181                 }
5182
5183                 XMLNode &before = region->get_state();
5184                 if (in) {
5185                         region->set_fade_in_active (!yn);
5186                 } else {
5187                         region->set_fade_out_active (!yn);
5188                 }
5189                 XMLNode &after = region->get_state();
5190                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5191         }
5192
5193         commit_reversible_command ();
5194 }
5195
5196 void
5197 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5198 {
5199         RegionSelection rs;
5200
5201         get_regions_for_action (rs);
5202
5203         if (rs.empty()) {
5204                 return;
5205         }
5206
5207         begin_reversible_command (_("set fade in shape"));
5208
5209         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5210                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5211
5212                 if (!tmp) {
5213                         return;
5214                 }
5215
5216                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5217                 XMLNode &before = alist->get_state();
5218
5219                 tmp->audio_region()->set_fade_in_shape (shape);
5220
5221                 XMLNode &after = alist->get_state();
5222                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5223         }
5224
5225         commit_reversible_command ();
5226
5227 }
5228
5229 void
5230 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5231 {
5232         RegionSelection rs;
5233
5234         get_regions_for_action (rs);
5235
5236         if (rs.empty()) {
5237                 return;
5238         }
5239
5240         begin_reversible_command (_("set fade out shape"));
5241
5242         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5243                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5244
5245                 if (!tmp) {
5246                         return;
5247                 }
5248
5249                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5250                 XMLNode &before = alist->get_state();
5251
5252                 tmp->audio_region()->set_fade_out_shape (shape);
5253
5254                 XMLNode &after = alist->get_state();
5255                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5256         }
5257
5258         commit_reversible_command ();
5259 }
5260
5261 void
5262 Editor::set_fade_in_active (bool yn)
5263 {
5264         RegionSelection rs;
5265
5266         get_regions_for_action (rs);
5267
5268         if (rs.empty()) {
5269                 return;
5270         }
5271
5272         begin_reversible_command (_("set fade in active"));
5273
5274         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5275                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5276
5277                 if (!tmp) {
5278                         return;
5279                 }
5280
5281
5282                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5283
5284                 XMLNode &before = ar->get_state();
5285
5286                 ar->set_fade_in_active (yn);
5287
5288                 XMLNode &after = ar->get_state();
5289                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5290         }
5291
5292         commit_reversible_command ();
5293 }
5294
5295 void
5296 Editor::set_fade_out_active (bool yn)
5297 {
5298         RegionSelection rs;
5299
5300         get_regions_for_action (rs);
5301
5302         if (rs.empty()) {
5303                 return;
5304         }
5305
5306         begin_reversible_command (_("set fade out active"));
5307
5308         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5309                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5310
5311                 if (!tmp) {
5312                         return;
5313                 }
5314
5315                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5316
5317                 XMLNode &before = ar->get_state();
5318
5319                 ar->set_fade_out_active (yn);
5320
5321                 XMLNode &after = ar->get_state();
5322                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5323         }
5324
5325         commit_reversible_command ();
5326 }
5327
5328 void
5329 Editor::toggle_selected_region_fades (int dir)
5330 {
5331         RegionSelection rs;
5332         RegionSelection::iterator i;
5333         boost::shared_ptr<AudioRegion> ar;
5334         bool yn;
5335
5336         get_regions_for_action (rs);
5337
5338         if (rs.empty()) {
5339                 return;
5340         }
5341
5342         for (i = rs.begin(); i != rs.end(); ++i) {
5343                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5344                         if (dir == -1) {
5345                                 yn = ar->fade_out_active ();
5346                         } else {
5347                                 yn = ar->fade_in_active ();
5348                         }
5349                         break;
5350                 }
5351         }
5352
5353         if (i == rs.end()) {
5354                 return;
5355         }
5356
5357         /* XXX should this undo-able? */
5358
5359         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5360                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5361                         continue;
5362                 }
5363                 if (dir == 1 || dir == 0) {
5364                         ar->set_fade_in_active (!yn);
5365                 }
5366
5367                 if (dir == -1 || dir == 0) {
5368                         ar->set_fade_out_active (!yn);
5369                 }
5370         }
5371 }
5372
5373
5374 /** Update region fade visibility after its configuration has been changed */
5375 void
5376 Editor::update_region_fade_visibility ()
5377 {
5378         bool _fade_visibility = session->config.get_show_region_fades ();
5379
5380         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5381                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5382                 if (v) {
5383                         if (_fade_visibility) {
5384                                 v->audio_view()->show_all_fades ();
5385                         } else {
5386                                 v->audio_view()->hide_all_fades ();
5387                         }
5388                 }
5389         }
5390 }
5391
5392 /** Update crossfade visibility after its configuration has been changed */
5393 void
5394 Editor::update_xfade_visibility ()
5395 {
5396         _xfade_visibility = session->config.get_xfades_visible ();
5397
5398         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5399                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5400                 if (v) {
5401                         if (_xfade_visibility) {
5402                                 v->show_all_xfades ();
5403                         } else {
5404                                 v->hide_all_xfades ();
5405                         }
5406                 }
5407         }
5408 }
5409
5410 void
5411 Editor::set_edit_point ()
5412 {
5413         nframes64_t where;
5414         bool ignored;
5415
5416         if (!mouse_frame (where, ignored)) {
5417                 return;
5418         }
5419
5420         snap_to (where);
5421
5422         if (selection->markers.empty()) {
5423
5424                 mouse_add_new_marker (where);
5425
5426         } else {
5427                 bool ignored;
5428
5429                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5430
5431                 if (loc) {
5432                         loc->move_to (where);
5433                 }
5434         }
5435 }
5436
5437 void
5438 Editor::set_playhead_cursor ()
5439 {
5440         if (entered_marker) {
5441                 session->request_locate (entered_marker->position(), session->transport_rolling());
5442         } else {
5443                 nframes64_t where;
5444                 bool ignored;
5445
5446                 if (!mouse_frame (where, ignored)) {
5447                         return;
5448                 }
5449
5450                 snap_to (where);
5451
5452                 if (session) {
5453                         session->request_locate (where, session->transport_rolling());
5454                 }
5455         }
5456 }
5457
5458 void
5459 Editor::split ()
5460 {
5461         RegionSelection rs;
5462
5463         get_regions_for_action (rs, true);
5464
5465         nframes64_t where = get_preferred_edit_position();
5466
5467         if (rs.empty()) {
5468                 return;
5469         }
5470
5471         split_regions_at (where, rs);
5472 }
5473
5474 void
5475 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5476 {
5477         if (entered_track && mouse_mode == MouseObject) {
5478                 if (!selection->tracks.empty()) {
5479                         if (!selection->selected (entered_track)) {
5480                                 selection->add (entered_track);
5481                         }
5482                 } else {
5483                         /* there is no selection, but this operation requires/prefers selected objects */
5484
5485                         if (op_really_wants_one_track_if_none_are_selected) {
5486                                 selection->set (entered_track);
5487                         }
5488                 }
5489         }
5490 }
5491
5492 struct EditorOrderRouteSorter {
5493     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5494             /* use of ">" forces the correct sort order */
5495             return a->order_key ("editor") < b->order_key ("editor");
5496     }
5497 };
5498
5499 void
5500 Editor::select_next_route()
5501 {
5502         if (selection->tracks.empty()) {
5503                 selection->set (track_views.front());
5504                 return;
5505         }
5506
5507         TimeAxisView* current = selection->tracks.front();
5508
5509         RouteUI *rui;
5510         do {
5511                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5512                         if (*i == current) {
5513                                 ++i;
5514                                 if (i != track_views.end()) {
5515                                         current = (*i);
5516                                 } else {
5517                                         current = (*(track_views.begin()));
5518                                         //selection->set (*(track_views.begin()));
5519                                 }
5520                                 break;
5521                         }
5522                 }
5523                 rui = dynamic_cast<RouteUI *>(current);
5524         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5525
5526         selection->set(current);
5527
5528         ensure_track_visible(current);
5529 }
5530
5531 void
5532 Editor::select_prev_route()
5533 {
5534         if (selection->tracks.empty()) {
5535                 selection->set (track_views.front());
5536                 return;
5537         }
5538
5539         TimeAxisView* current = selection->tracks.front();
5540
5541         RouteUI *rui;
5542         do {
5543                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5544                         if (*i == current) {
5545                                 ++i;
5546                                 if (i != track_views.rend()) {
5547                                         current = (*i);
5548                                 } else {
5549                                         current = *(track_views.rbegin());
5550                                 }
5551                                 break;
5552                         }
5553                 }
5554                 rui = dynamic_cast<RouteUI *>(current);
5555         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5556
5557         selection->set (current);
5558
5559         ensure_track_visible(current);
5560 }
5561
5562 void
5563 Editor::ensure_track_visible(TimeAxisView *track)
5564 {
5565         if (track->hidden())
5566                 return;
5567
5568         double const current_view_min_y = vertical_adjustment.get_value();
5569         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5570
5571         double const track_min_y = track->y_position ();
5572         double const track_max_y = track->y_position () + track->effective_height ();
5573
5574         if (track_min_y >= current_view_min_y &&
5575             track_max_y <= current_view_max_y) {
5576                 return;
5577         }
5578
5579         double new_value;
5580
5581         if (track_min_y < current_view_min_y) {
5582                 // Track is above the current view
5583                 new_value = track_min_y;
5584         } else {
5585                 // Track is below the current view
5586                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5587         }
5588
5589         vertical_adjustment.set_value(new_value);
5590 }
5591
5592 void
5593 Editor::set_loop_from_selection (bool play)
5594 {
5595         if (session == 0 || selection->time.empty()) {
5596                 return;
5597         }
5598
5599         nframes64_t start = selection->time[clicked_selection].start;
5600         nframes64_t end = selection->time[clicked_selection].end;
5601
5602         set_loop_range (start, end,  _("set loop range from selection"));
5603
5604         if (play) {
5605                 session->request_play_loop (true);
5606                 session->request_locate (start, true);
5607         }
5608 }
5609
5610 void
5611 Editor::set_loop_from_edit_range (bool play)
5612 {
5613         if (session == 0) {
5614                 return;
5615         }
5616
5617         nframes64_t start;
5618         nframes64_t end;
5619
5620         if (!get_edit_op_range (start, end)) {
5621                 return;
5622         }
5623
5624         set_loop_range (start, end,  _("set loop range from edit range"));
5625
5626         if (play) {
5627                 session->request_play_loop (true);
5628                 session->request_locate (start, true);
5629         }
5630 }
5631
5632 void
5633 Editor::set_loop_from_region (bool play)
5634 {
5635         nframes64_t start = max_frames;
5636         nframes64_t end = 0;
5637
5638         RegionSelection rs;
5639
5640         get_regions_for_action (rs);
5641
5642         if (rs.empty()) {
5643                 return;
5644         }
5645
5646         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5647                 if ((*i)->region()->position() < start) {
5648                         start = (*i)->region()->position();
5649                 }
5650                 if ((*i)->region()->last_frame() + 1 > end) {
5651                         end = (*i)->region()->last_frame() + 1;
5652                 }
5653         }
5654
5655         set_loop_range (start, end, _("set loop range from region"));
5656
5657         if (play) {
5658                 session->request_play_loop (true);
5659                 session->request_locate (start, true);
5660         }
5661 }
5662
5663 void
5664 Editor::set_punch_from_selection ()
5665 {
5666         if (session == 0 || selection->time.empty()) {
5667                 return;
5668         }
5669
5670         nframes64_t start = selection->time[clicked_selection].start;
5671         nframes64_t end = selection->time[clicked_selection].end;
5672
5673         set_punch_range (start, end,  _("set punch range from selection"));
5674 }
5675
5676 void
5677 Editor::set_punch_from_edit_range ()
5678 {
5679         if (session == 0) {
5680                 return;
5681         }
5682
5683         nframes64_t start;
5684         nframes64_t end;
5685
5686         if (!get_edit_op_range (start, end)) {
5687                 return;
5688         }
5689
5690         set_punch_range (start, end,  _("set punch range from edit range"));
5691 }
5692
5693 void
5694 Editor::set_punch_from_region ()
5695 {
5696         nframes64_t start = max_frames;
5697         nframes64_t end = 0;
5698
5699         RegionSelection rs;
5700
5701         get_regions_for_action (rs);
5702
5703         if (rs.empty()) {
5704                 return;
5705         }
5706
5707         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5708                 if ((*i)->region()->position() < start) {
5709                         start = (*i)->region()->position();
5710                 }
5711                 if ((*i)->region()->last_frame() + 1 > end) {
5712                         end = (*i)->region()->last_frame() + 1;
5713                 }
5714         }
5715
5716         set_punch_range (start, end, _("set punch range from region"));
5717 }
5718
5719 void
5720 Editor::pitch_shift_regions ()
5721 {
5722         RegionSelection rs;
5723
5724         get_regions_for_action (rs);
5725
5726         if (rs.empty()) {
5727                 return;
5728         }
5729
5730         pitch_shift (rs, 1.2);
5731 }
5732
5733 void
5734 Editor::use_region_as_bar ()
5735 {
5736         if (!session) {
5737                 return;
5738         }
5739
5740         RegionSelection rs;
5741
5742         get_regions_for_action (rs);
5743
5744         if (rs.empty()) {
5745                 return;
5746         }
5747
5748         RegionView* rv = rs.front();
5749
5750         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5751 }
5752
5753 void
5754 Editor::use_range_as_bar ()
5755 {
5756         nframes64_t start, end;
5757         if (get_edit_op_range (start, end)) {
5758                 define_one_bar (start, end);
5759         }
5760 }
5761
5762 void
5763 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5764 {
5765         nframes64_t length = end - start;
5766
5767         const Meter& m (session->tempo_map().meter_at (start));
5768
5769         /* length = 1 bar */
5770
5771         /* now we want frames per beat.
5772            we have frames per bar, and beats per bar, so ...
5773         */
5774
5775         double frames_per_beat = length / m.beats_per_bar();
5776
5777         /* beats per minute = */
5778
5779         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5780
5781         /* now decide whether to:
5782
5783             (a) set global tempo
5784             (b) add a new tempo marker
5785
5786         */
5787
5788         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5789
5790         bool do_global = false;
5791
5792         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5793
5794                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5795                    at the start, or create a new marker
5796                 */
5797
5798                 vector<string> options;
5799                 options.push_back (_("Cancel"));
5800                 options.push_back (_("Add new marker"));
5801                 options.push_back (_("Set global tempo"));
5802                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5803                           options);
5804                 c.set_default_response (2);
5805
5806                 switch (c.run()) {
5807                 case 0:
5808                         return;
5809
5810                 case 2:
5811                         do_global = true;
5812                         break;
5813
5814                 default:
5815                         do_global = false;
5816                 }
5817
5818         } else {
5819
5820                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5821                    if the marker is at the region starter, change it, otherwise add
5822                    a new tempo marker
5823                 */
5824         }
5825
5826         begin_reversible_command (_("set tempo from region"));
5827         XMLNode& before (session->tempo_map().get_state());
5828
5829         if (do_global) {
5830                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5831         } else if (t.frame() == start) {
5832                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5833         } else {
5834                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5835         }
5836
5837         XMLNode& after (session->tempo_map().get_state());
5838
5839         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5840         commit_reversible_command ();
5841 }
5842
5843 void
5844 Editor::split_region_at_transients ()
5845 {
5846         AnalysisFeatureList positions;
5847
5848         if (!session) {
5849                 return;
5850         }
5851
5852         RegionSelection rs;
5853
5854         get_regions_for_action (rs);
5855
5856         if (rs.empty()) {
5857                 return;
5858         }
5859
5860         session->begin_reversible_command (_("split regions"));
5861
5862         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5863
5864                 RegionSelection::iterator tmp;
5865
5866                 tmp = i;
5867                 ++tmp;
5868
5869                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5870
5871                 if (ar && (ar->get_transients (positions) == 0)) {
5872                         split_region_at_points ((*i)->region(), positions, true);
5873                         positions.clear ();
5874                 }
5875
5876                 i = tmp;
5877         }
5878
5879         session->commit_reversible_command ();
5880
5881 }
5882
5883 void
5884 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5885 {
5886         bool use_rhythmic_rodent = false;
5887
5888         boost::shared_ptr<Playlist> pl = r->playlist();
5889
5890         if (!pl) {
5891                 return;
5892         }
5893
5894         if (positions.empty()) {
5895                 return;
5896         }
5897
5898
5899         if (positions.size() > 20) {
5900                 Glib::ustring msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
5901                 MessageDialog msg (msgstr,
5902                                    false,
5903                                    Gtk::MESSAGE_INFO,
5904                                    Gtk::BUTTONS_OK_CANCEL);
5905
5906                 if (can_ferret) {
5907                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5908                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5909                 } else {
5910                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5911                 }
5912
5913                 msg.set_title (_("Excessive split?"));
5914                 msg.present ();
5915
5916                 int response = msg.run();
5917                 msg.hide ();
5918                 switch (response) {
5919                 case RESPONSE_OK:
5920                         break;
5921                 case RESPONSE_APPLY:
5922                         use_rhythmic_rodent = true;
5923                         break;
5924                 default:
5925                         return;
5926                 }
5927         }
5928
5929         if (use_rhythmic_rodent) {
5930                 show_rhythm_ferret ();
5931                 return;
5932         }
5933
5934         AnalysisFeatureList::const_iterator x;
5935
5936         nframes64_t pos = r->position();
5937
5938         XMLNode& before (pl->get_state());
5939
5940         x = positions.begin();
5941
5942         while (x != positions.end()) {
5943                 if ((*x) > pos) {
5944                         break;
5945                 }
5946                 ++x;
5947         }
5948
5949         if (x == positions.end()) {
5950                 return;
5951         }
5952
5953         pl->freeze ();
5954         pl->remove_region (r);
5955
5956         while (x != positions.end()) {
5957
5958                 /* file start = original start + how far we from the initial position ?
5959                  */
5960
5961                 nframes64_t file_start = r->start() + (pos - r->position());
5962
5963                 /* length = next position - current position
5964                  */
5965
5966                 nframes64_t len = (*x) - pos;
5967
5968                 /* XXX we do we really want to allow even single-sample regions?
5969                    shouldn't we have some kind of lower limit on region size?
5970                 */
5971
5972                 if (len <= 0) {
5973                         break;
5974                 }
5975
5976                 string new_name;
5977
5978                 if (session->region_name (new_name, r->name())) {
5979                         break;
5980                 }
5981
5982                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5983
5984                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5985                 pl->add_region (nr, pos);
5986
5987                 pos += len;
5988                 ++x;
5989
5990                 if (*x > r->last_frame()) {
5991
5992                         /* add final fragment */
5993
5994                         file_start = r->start() + (pos - r->position());
5995                         len = r->last_frame() - pos;
5996
5997                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5998                         pl->add_region (nr, pos);
5999
6000                         break;
6001                 }
6002         }
6003
6004         pl->thaw ();
6005
6006         XMLNode& after (pl->get_state());
6007
6008         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6009 }
6010
6011 void
6012 Editor::tab_to_transient (bool forward)
6013 {
6014         AnalysisFeatureList positions;
6015
6016         if (!session) {
6017                 return;
6018         }
6019
6020         nframes64_t pos = session->audible_frame ();
6021
6022         if (!selection->tracks.empty()) {
6023
6024                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6025
6026                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6027
6028                         if (rtv) {
6029                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6030                                 if (ds) {
6031                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6032                                         if (pl) {
6033                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6034
6035                                                 if (result >= 0) {
6036                                                         positions.push_back (result);
6037                                                 }
6038                                         }
6039                                 }
6040                         }
6041                 }
6042
6043         } else {
6044
6045                 RegionSelection rs;
6046
6047                 get_regions_for_action (rs);
6048
6049                 if (rs.empty()) {
6050                         return;
6051                 }
6052
6053                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6054                         (*r)->region()->get_transients (positions);
6055                 }
6056         }
6057
6058         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6059
6060         if (forward) {
6061                 AnalysisFeatureList::iterator x;
6062
6063                 for (x = positions.begin(); x != positions.end(); ++x) {
6064                         if ((*x) > pos) {
6065                                 break;
6066                         }
6067                 }
6068
6069                 if (x != positions.end ()) {
6070                         session->request_locate (*x);
6071                 }
6072
6073         } else {
6074                 AnalysisFeatureList::reverse_iterator x;
6075
6076                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6077                         if ((*x) < pos) {
6078                                 break;
6079                         }
6080                 }
6081
6082                 if (x != positions.rend ()) {
6083                         session->request_locate (*x);
6084                 }
6085         }
6086 }
6087 void
6088 Editor::playhead_forward_to_grid ()
6089 {
6090         if (!session) return;
6091         nframes64_t pos = playhead_cursor->current_frame;
6092         if (pos < max_frames - 1) {
6093                 pos += 2;
6094                 snap_to_internal (pos, 1, false);
6095                 session->request_locate (pos);
6096         }
6097 }
6098
6099
6100 void
6101 Editor::playhead_backward_to_grid ()
6102 {
6103         if (!session) return;
6104         nframes64_t pos = playhead_cursor->current_frame;
6105         if (pos > 2) {
6106                 pos -= 2;
6107                 snap_to_internal (pos, -1, false);
6108                 session->request_locate (pos);
6109         }
6110 }
6111
6112 void
6113 Editor::set_track_height (uint32_t h)
6114 {
6115         TrackSelection& ts (selection->tracks);
6116
6117         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6118                 (*x)->set_height (h);
6119         }
6120 }
6121
6122 void
6123 Editor::toggle_tracks_active ()
6124 {
6125         TrackSelection& ts (selection->tracks);
6126         bool first = true;
6127         bool target = false;
6128
6129         if (ts.empty()) {
6130                 return;
6131         }
6132
6133         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6134                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6135
6136                 if (rtv) {
6137                         if (first) {
6138                                 target = !rtv->_route->active();
6139                                 first = false;
6140                         }
6141                         rtv->_route->set_active (target);
6142                 }
6143         }
6144 }
6145
6146 void
6147 Editor::remove_tracks ()
6148 {
6149         TrackSelection& ts (selection->tracks);
6150
6151         if (ts.empty()) {
6152                 return;
6153         }
6154
6155         vector<string> choices;
6156         string prompt;
6157         int ntracks = 0;
6158         int nbusses = 0;
6159         const char* trackstr;
6160         const char* busstr;
6161         vector<boost::shared_ptr<Route> > routes;
6162
6163         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6164                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6165                 if (rtv) {
6166                         if (rtv->is_track()) {
6167                                 ntracks++;
6168                         } else {
6169                                 nbusses++;
6170                         }
6171                 }
6172                 routes.push_back (rtv->_route);
6173         }
6174
6175         if (ntracks + nbusses == 0) {
6176                 return;
6177         }
6178
6179         if (ntracks > 1) {
6180                 trackstr = _("tracks");
6181         } else {
6182                 trackstr = _("track");
6183         }
6184
6185         if (nbusses > 1) {
6186                 busstr = _("busses");
6187         } else {
6188                 busstr = _("bus");
6189         }
6190
6191         if (ntracks) {
6192                 if (nbusses) {
6193                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6194                                                     "(You may also lose the playlists associated with the %2)\n\n"
6195                                                     "This action cannot be undone!"),
6196                                                   ntracks, trackstr, nbusses, busstr);
6197                 } else {
6198                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6199                                                     "(You may also lose the playlists associated with the %2)\n\n"
6200                                                     "This action cannot be undone!"),
6201                                                   ntracks, trackstr);
6202                 }
6203         } else if (nbusses) {
6204                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6205                                           nbusses, busstr);
6206         }
6207
6208         choices.push_back (_("No, do nothing."));
6209         if (ntracks + nbusses > 1) {
6210                 choices.push_back (_("Yes, remove them."));
6211         } else {
6212                 choices.push_back (_("Yes, remove it."));
6213         }
6214
6215         Choice prompter (prompt, choices);
6216
6217         if (prompter.run () != 1) {
6218                 return;
6219         }
6220
6221         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6222                 session->remove_route (*x);
6223         }
6224 }
6225
6226 void
6227 Editor::do_insert_time ()
6228 {
6229         if (selection->tracks.empty()) {
6230                 return;
6231         }
6232
6233         ArdourDialog d (*this, _("Insert Time"));
6234
6235         nframes64_t const pos = get_preferred_edit_position ();
6236
6237         d.get_vbox()->set_border_width (12);
6238         d.get_vbox()->set_spacing (4);
6239
6240         Table table (2, 2);
6241         table.set_spacings (4);
6242
6243         Label time_label (_("Time to insert:"));
6244         time_label.set_alignment (1, 0.5);
6245         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6246         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, false, true, true);
6247         clock.set (0);
6248         clock.set_session (session);
6249         clock.set_bbt_reference (pos);
6250         table.attach (clock, 1, 2, 0, 1);
6251
6252         Label intersected_label (_("Intersected regions should:"));
6253         intersected_label.set_alignment (1, 0.5);
6254         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6255         ComboBoxText intersected_combo;
6256         intersected_combo.append_text (_("stay in position"));
6257         intersected_combo.append_text (_("move"));
6258         intersected_combo.append_text (_("be split"));
6259         intersected_combo.set_active (0);
6260         table.attach (intersected_combo, 1, 2, 1, 2);
6261
6262         d.get_vbox()->pack_start (table);
6263
6264         CheckButton move_glued (_("Move glued regions"));
6265         d.get_vbox()->pack_start (move_glued);
6266         CheckButton move_markers (_("Move markers"));
6267         d.get_vbox()->pack_start (move_markers);
6268         CheckButton move_tempos (_("Move tempo and meter changes"));
6269         d.get_vbox()->pack_start (move_tempos);
6270
6271         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6272         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6273         d.show_all ();
6274
6275         int response = d.run ();
6276
6277         if (response != RESPONSE_OK) {
6278                 return;
6279         }
6280
6281         nframes64_t distance = clock.current_duration (pos);
6282
6283         if (distance == 0) {
6284                 return;
6285         }
6286
6287         InsertTimeOption opt;
6288
6289         switch (intersected_combo.get_active_row_number ()) {
6290         case 0:
6291                 opt = LeaveIntersected;
6292                 break;
6293         case 1:
6294                 opt = MoveIntersected;
6295                 break;
6296         case 2:
6297                 opt = SplitIntersected;
6298                 break;
6299         }
6300
6301         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6302 }
6303
6304 void
6305 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6306                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6307 {
6308         bool commit = false;
6309
6310         if (Config->get_edit_mode() == Lock) {
6311                 return;
6312         }
6313
6314         begin_reversible_command (_("insert time"));
6315
6316         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6317                 /* regions */
6318                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6319
6320                 if (pl) {
6321
6322                         XMLNode &before = pl->get_state();
6323
6324                         if (opt == SplitIntersected) {
6325                                 pl->split (pos);
6326                         }
6327
6328                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6329
6330                         XMLNode &after = pl->get_state();
6331
6332                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6333                         commit = true;
6334                 }
6335
6336                 /* automation */
6337                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6338                 if (rtav) {
6339                         rtav->route ()->shift (pos, frames);
6340                         commit = true;
6341                 }
6342         }
6343
6344         /* markers */
6345         if (markers_too) {
6346                 bool moved = false;
6347                 XMLNode& before (session->locations()->get_state());
6348                 Locations::LocationList copy (session->locations()->list());
6349
6350                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6351
6352                         Locations::LocationList::const_iterator tmp;
6353
6354                         if ((*i)->start() >= pos) {
6355                                 (*i)->set_start ((*i)->start() + frames);
6356                                 if (!(*i)->is_mark()) {
6357                                         (*i)->set_end ((*i)->end() + frames);
6358                                 }
6359                                 moved = true;
6360                         }
6361                 }
6362
6363                 if (moved) {
6364                         XMLNode& after (session->locations()->get_state());
6365                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6366                 }
6367         }
6368
6369         if (tempo_too) {
6370                 session->tempo_map().insert_time (pos, frames);
6371         }
6372
6373         if (commit) {
6374                 commit_reversible_command ();
6375         }
6376 }
6377
6378 void
6379 Editor::fit_selected_tracks ()
6380 {
6381         fit_tracks (selection->tracks);
6382 }
6383
6384 void
6385 Editor::fit_tracks (TrackSelection & tracks)
6386 {
6387         if (tracks.empty()) {
6388                 return;
6389         }
6390
6391         uint32_t child_heights = 0;
6392
6393         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6394
6395                 if (!(*t)->marked_for_display()) {
6396                         continue;
6397                 }
6398
6399                 child_heights += (*t)->effective_height() - (*t)->current_height();
6400         }
6401
6402         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6403         double first_y_pos = DBL_MAX;
6404
6405         if (h < TimeAxisView::hSmall) {
6406                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6407                 /* too small to be displayed */
6408                 return;
6409         }
6410
6411         undo_visual_stack.push_back (current_visual_state());
6412
6413         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6414
6415         bool prev_was_selected = false;
6416         bool is_selected = tracks.contains (track_views.front());
6417         bool next_is_selected;
6418
6419         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6420
6421                 TrackViewList::iterator next;
6422
6423                 next = t;
6424                 ++next;
6425
6426                 if (next != track_views.end()) {
6427                         next_is_selected = tracks.contains (*next);
6428                 } else {
6429                         next_is_selected = false;
6430                 }
6431
6432                 if (is_selected) {
6433                         (*t)->set_height (h);
6434                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6435                 } else {
6436                         if (prev_was_selected && next_is_selected) {
6437                                 hide_track_in_display (**t);
6438                         }
6439                 }
6440
6441                 prev_was_selected = is_selected;
6442                 is_selected = next_is_selected;
6443         }
6444
6445         /*
6446            set the controls_layout height now, because waiting for its size
6447            request signal handler will cause the vertical adjustment setting to fail
6448         */
6449
6450         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6451         vertical_adjustment.set_value (first_y_pos);
6452
6453         redo_visual_stack.push_back (current_visual_state());
6454 }
6455
6456 void
6457 Editor::save_visual_state (uint32_t n)
6458 {
6459         while (visual_states.size() <= n) {
6460                 visual_states.push_back (0);
6461         }
6462
6463         delete visual_states[n];
6464
6465         visual_states[n] = current_visual_state (true);
6466         gdk_beep ();
6467 }
6468
6469 void
6470 Editor::goto_visual_state (uint32_t n)
6471 {
6472         if (visual_states.size() <= n) {
6473                 return;
6474         }
6475
6476         if (visual_states[n] == 0) {
6477                 return;
6478         }
6479
6480         use_visual_state (*visual_states[n]);
6481 }
6482
6483 void
6484 Editor::start_visual_state_op (uint32_t n)
6485 {
6486         if (visual_state_op_connection.empty()) {
6487                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6488         }
6489 }
6490
6491 void
6492 Editor::cancel_visual_state_op (uint32_t n)
6493 {
6494         if (!visual_state_op_connection.empty()) {
6495                 visual_state_op_connection.disconnect();
6496                 goto_visual_state (n);
6497         }  else {
6498                 //we land here if called from the menu OR if end_visual_state_op has been called
6499                 //so check if we are already in visual state n
6500                 // XXX not yet checking it at all, but redoing does not hurt
6501                 goto_visual_state (n);
6502         }
6503 }
6504
6505 bool
6506 Editor::end_visual_state_op (uint32_t n)
6507 {
6508         visual_state_op_connection.disconnect();
6509         save_visual_state (n);
6510
6511         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6512         char buf[32];
6513         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6514         pup->set_text (buf);
6515         pup->touch();
6516
6517         return false; // do not call again
6518 }
6519