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         SessionEvent::create_per_thread_pool ("freeze events", 64);
3657
3658         return static_cast<Editor*>(arg)->freeze_thread ();
3659 }
3660
3661 void*
3662 Editor::freeze_thread ()
3663 {
3664         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3665         current_interthread_info->done = true;
3666         return 0;
3667 }
3668
3669 gint
3670 Editor::freeze_progress_timeout (void */*arg*/)
3671 {
3672         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3673         return !(current_interthread_info->done || current_interthread_info->cancel);
3674 }
3675
3676 void
3677 Editor::freeze_route ()
3678 {
3679         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3680                 return;
3681         }
3682
3683         InterThreadInfo itt;
3684
3685         if (interthread_progress_window == 0) {
3686                 build_interthread_progress_window ();
3687         }
3688
3689         interthread_progress_window->set_title (_("Freeze"));
3690         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3691         interthread_progress_window->show_all ();
3692         interthread_progress_bar.set_fraction (0.0f);
3693         interthread_progress_label.set_text ("");
3694         interthread_cancel_label.set_text (_("Cancel Freeze"));
3695         current_interthread_info = &itt;
3696
3697         interthread_progress_connection =
3698           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3699
3700         itt.done = false;
3701         itt.cancel = false;
3702         itt.progress = 0.0f;
3703
3704         pthread_attr_t attr;
3705         pthread_attr_init(&attr);
3706         pthread_attr_setstacksize(&attr, 500000);
3707
3708         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3709
3710         pthread_attr_destroy(&attr);
3711
3712         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3713
3714         while (!itt.done && !itt.cancel) {
3715                 gtk_main_iteration ();
3716         }
3717
3718         interthread_progress_connection.disconnect ();
3719         interthread_progress_window->hide_all ();
3720         current_interthread_info = 0;
3721         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3722 }
3723
3724 void
3725 Editor::bounce_range_selection (bool replace, bool enable_processing)
3726 {
3727         if (selection->time.empty()) {
3728                 return;
3729         }
3730
3731         TrackSelection views = selection->tracks;
3732
3733         nframes64_t start = selection->time[clicked_selection].start;
3734         nframes64_t end = selection->time[clicked_selection].end;
3735         nframes64_t cnt = end - start + 1;
3736
3737         begin_reversible_command (_("bounce range"));
3738
3739         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3740
3741                 RouteTimeAxisView* rtv;
3742
3743                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3744                         continue;
3745                 }
3746
3747                 boost::shared_ptr<Playlist> playlist;
3748
3749                 if ((playlist = rtv->playlist()) == 0) {
3750                         return;
3751                 }
3752
3753                 InterThreadInfo itt;
3754
3755                 itt.done = false;
3756                 itt.cancel = false;
3757                 itt.progress = false;
3758
3759                 XMLNode &before = playlist->get_state();
3760                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3761
3762                 if (replace) {
3763                         list<AudioRange> ranges;
3764                         ranges.push_back (AudioRange (start, start+cnt, 0));
3765                         playlist->cut (ranges); // discard result
3766                         playlist->add_region (r, start);
3767                 }
3768
3769                 XMLNode &after = playlist->get_state();
3770                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3771         }
3772
3773         commit_reversible_command ();
3774 }
3775
3776 /** Cut selected regions, automation points or a time range */
3777 void
3778 Editor::cut ()
3779 {
3780         cut_copy (Cut);
3781 }
3782
3783 /** Copy selected regions, automation points or a time range */
3784 void
3785 Editor::copy ()
3786 {
3787         cut_copy (Copy);
3788 }
3789
3790
3791 /** @return true if a Cut, Copy or Clear is possible */
3792 bool
3793 Editor::can_cut_copy () const
3794 {
3795         switch (current_mouse_mode()) {
3796
3797         case MouseObject:
3798                 if (!selection->regions.empty() || !selection->points.empty()) {
3799                         return true;
3800                 }
3801                 break;
3802
3803         case MouseRange:
3804                 if (!selection->time.empty()) {
3805                         return true;
3806                 }
3807                 break;
3808
3809         default:
3810                 break;
3811         }
3812
3813         return false;
3814 }
3815
3816
3817 /** Cut, copy or clear selected regions, automation points or a time range.
3818  * @param op Operation (Cut, Copy or Clear)
3819  */
3820 void
3821 Editor::cut_copy (CutCopyOp op)
3822 {
3823         /* only cancel selection if cut/copy is successful.*/
3824
3825         string opname;
3826
3827         switch (op) {
3828         case Cut:
3829                 opname = _("cut");
3830                 break;
3831         case Copy:
3832                 opname = _("copy");
3833                 break;
3834         case Clear:
3835                 opname = _("clear");
3836                 break;
3837         }
3838
3839         /* if we're deleting something, and the mouse is still pressed,
3840            the thing we started a drag for will be gone when we release
3841            the mouse button(s). avoid this. see part 2 at the end of
3842            this function.
3843         */
3844
3845         if (op == Cut || op == Clear) {
3846                 if (_drag) {
3847                         _drag->item()->ungrab (0);
3848                         delete _drag;
3849                         _drag = 0;
3850                 }
3851         }
3852
3853         cut_buffer->clear ();
3854
3855         if (entered_marker) {
3856
3857                 /* cut/delete op while pointing at a marker */
3858
3859                 bool ignored;
3860                 Location* loc = find_location_from_marker (entered_marker, ignored);
3861
3862                 if (session && loc) {
3863                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3864                 }
3865
3866                 break_drag ();
3867                 delete _drag;
3868                 _drag = 0;
3869
3870                 return;
3871         }
3872
3873         if (internal_editing()) {
3874
3875                 switch (current_mouse_mode()) {
3876                 case MouseObject:
3877                 case MouseRange:
3878                         cut_copy_midi (op);
3879                         break;
3880                 default:
3881                         break;
3882                 }
3883
3884         } else {
3885
3886                 RegionSelection rs;
3887
3888                 /* we only want to cut regions if some are selected */
3889
3890                 if (!selection->regions.empty()) {
3891                         get_regions_for_action (rs, false, false);
3892                 }
3893
3894                 switch (current_mouse_mode()) {
3895                 case MouseObject:
3896                         if (!rs.empty() || !selection->points.empty()) {
3897
3898                                 begin_reversible_command (opname + _(" objects"));
3899
3900                                 if (!rs.empty()) {
3901                                         cut_copy_regions (op, rs);
3902
3903                                         if (op == Cut) {
3904                                                 selection->clear_regions ();
3905                                         }
3906                                 }
3907
3908                                 if (!selection->points.empty()) {
3909                                         cut_copy_points (op);
3910
3911                                         if (op == Cut) {
3912                                                 selection->clear_points ();
3913                                         }
3914                                 }
3915
3916                                 commit_reversible_command ();
3917                                 break; // terminate case statement here
3918                         }
3919                         if (!selection->time.empty()) {
3920                                 /* don't cause suprises */
3921                                 break;
3922                         }
3923                         // fall thru if there was nothing selected
3924
3925                 case MouseRange:
3926                         if (selection->time.empty()) {
3927                                 nframes64_t start, end;
3928                                 if (!get_edit_op_range (start, end)) {
3929                                         return;
3930                                 }
3931                                 selection->set ((TimeAxisView*) 0, start, end);
3932                         }
3933
3934                         begin_reversible_command (opname + _(" range"));
3935                         cut_copy_ranges (op);
3936                         commit_reversible_command ();
3937
3938                         if (op == Cut) {
3939                                 selection->clear_time ();
3940                         }
3941
3942                         break;
3943
3944                 default:
3945                         break;
3946                 }
3947         }
3948
3949         if (op == Cut || op == Clear) {
3950                 break_drag ();
3951                 delete _drag;
3952                 _drag = 0;
3953         }
3954 }
3955
3956 /** Cut, copy or clear selected automation points.
3957  * @param op Operation (Cut, Copy or Clear)
3958  */
3959 void
3960 Editor::cut_copy_points (CutCopyOp op)
3961 {
3962         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3963
3964                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3965
3966                 if (atv) {
3967                         atv->cut_copy_clear_objects (selection->points, op);
3968                 }
3969         }
3970 }
3971
3972 /** Cut, copy or clear selected automation points.
3973  * @param op Operation (Cut, Copy or Clear)
3974  */
3975 void
3976 Editor::cut_copy_midi (CutCopyOp op)
3977 {
3978         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
3979                 MidiRegionView* mrv = *i;
3980                 mrv->cut_copy_clear (op);
3981         }
3982 }
3983
3984 struct PlaylistState {
3985     boost::shared_ptr<Playlist> playlist;
3986     XMLNode*  before;
3987 };
3988
3989 struct lt_playlist {
3990     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3991             return a.playlist < b.playlist;
3992     }
3993 };
3994
3995 struct PlaylistMapping {
3996     TimeAxisView* tv;
3997     boost::shared_ptr<Playlist> pl;
3998
3999     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4000 };
4001
4002 /** Remove `clicked_regionview' */
4003 void
4004 Editor::remove_clicked_region ()
4005 {
4006         if (clicked_routeview == 0 || clicked_regionview == 0) {
4007                 return;
4008         }
4009
4010         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4011
4012         begin_reversible_command (_("remove region"));
4013         XMLNode &before = playlist->get_state();
4014         playlist->remove_region (clicked_regionview->region());
4015         XMLNode &after = playlist->get_state();
4016         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4017         commit_reversible_command ();
4018 }
4019
4020
4021 /** Remove the selected regions */
4022 void
4023 Editor::remove_selected_regions ()
4024 {
4025         RegionSelection rs;
4026         get_regions_for_action (rs);
4027
4028         if (!session) {
4029                 return;
4030         }
4031
4032         if (rs.empty()) {
4033                 return;
4034         }
4035
4036         begin_reversible_command (_("remove region"));
4037
4038         list<boost::shared_ptr<Region> > regions_to_remove;
4039
4040         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4041                 // we can't just remove the region(s) in this loop because
4042                 // this removes them from the RegionSelection, and they thus
4043                 // disappear from underneath the iterator, and the ++i above
4044                 // SEGVs in a puzzling fashion.
4045
4046                 // so, first iterate over the regions to be removed from rs and
4047                 // add them to the regions_to_remove list, and then
4048                 // iterate over the list to actually remove them.
4049
4050                 regions_to_remove.push_back ((*i)->region());
4051         }
4052
4053         vector<PlaylistState> playlists;
4054
4055         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4056
4057                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4058
4059                 if (!playlist) {
4060                         // is this check necessary?
4061                         continue;
4062                 }
4063
4064                 vector<PlaylistState>::iterator i;
4065
4066                 //only take state if this is a new playlist.
4067                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4068                         if ((*i).playlist == playlist) {
4069                                 break;
4070                         }
4071                 }
4072
4073                 if (i == playlists.end()) {
4074
4075                         PlaylistState before;
4076                         before.playlist = playlist;
4077                         before.before = &playlist->get_state();
4078
4079                         playlist->freeze ();
4080                         playlists.push_back(before);
4081                 }
4082
4083                 playlist->remove_region (*rl);
4084         }
4085
4086         vector<PlaylistState>::iterator pl;
4087
4088         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4089                 (*pl).playlist->thaw ();
4090                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4091         }
4092
4093         commit_reversible_command ();
4094 }
4095
4096 /** Cut, copy or clear selected regions.
4097  * @param op Operation (Cut, Copy or Clear)
4098  */
4099 void
4100 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4101 {
4102         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4103            a map when we want ordered access to both elements. i think.
4104         */
4105
4106         vector<PlaylistMapping> pmap;
4107
4108         nframes64_t first_position = max_frames;
4109
4110         set<PlaylistState, lt_playlist> freezelist;
4111         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4112
4113         /* get ordering correct before we cut/copy */
4114
4115         rs.sort_by_position_and_track ();
4116
4117         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4118
4119                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4120
4121                 if (op == Cut || op == Clear) {
4122                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4123
4124                         if (pl) {
4125                                 set<PlaylistState, lt_playlist>::iterator fl;
4126
4127                                 //only take state if this is a new playlist.
4128                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4129                                         if ((*fl).playlist == pl) {
4130                                                 break;
4131                                         }
4132                                 }
4133
4134                                 if (fl == freezelist.end()) {
4135                                         PlaylistState before;
4136                                         before.playlist = pl;
4137                                         before.before = &pl->get_state();
4138                                         pl->freeze ();
4139                                         insert_result = freezelist.insert (before);
4140                                 }
4141                         }
4142                 }
4143
4144                 TimeAxisView* tv = &(*x)->get_trackview();
4145                 vector<PlaylistMapping>::iterator z;
4146
4147                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4148                         if ((*z).tv == tv) {
4149                                 break;
4150                         }
4151                 }
4152
4153                 if (z == pmap.end()) {
4154                         pmap.push_back (PlaylistMapping (tv));
4155                 }
4156         }
4157
4158         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4159
4160                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4161
4162                 if (!pl) {
4163                         /* impossible, but this handles it for the future */
4164                         continue;
4165                 }
4166
4167                 TimeAxisView& tv = (*x)->get_trackview();
4168                 boost::shared_ptr<Playlist> npl;
4169                 RegionSelection::iterator tmp;
4170
4171                 tmp = x;
4172                 ++tmp;
4173
4174                 vector<PlaylistMapping>::iterator z;
4175
4176                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4177                         if ((*z).tv == &tv) {
4178                                 break;
4179                         }
4180                 }
4181
4182                 assert (z != pmap.end());
4183
4184                 if (!(*z).pl) {
4185                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4186                         npl->freeze();
4187                         (*z).pl = npl;
4188                 } else {
4189                         npl = (*z).pl;
4190                 }
4191
4192                 boost::shared_ptr<Region> r = (*x)->region();
4193                 boost::shared_ptr<Region> _xx;
4194
4195                 assert (r != 0);
4196
4197                 switch (op) {
4198                 case Cut:
4199                         _xx = RegionFactory::create (r);
4200                         npl->add_region (_xx, r->position() - first_position);
4201                         pl->remove_region (r);
4202                         break;
4203
4204                 case Copy:
4205                         /* copy region before adding, so we're not putting same object into two different playlists */
4206                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4207                         break;
4208
4209                 case Clear:
4210                         pl->remove_region (r);
4211                         break;
4212                 }
4213
4214                 x = tmp;
4215         }
4216
4217         list<boost::shared_ptr<Playlist> > foo;
4218
4219         /* the pmap is in the same order as the tracks in which selected regions occured */
4220
4221         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4222                 (*i).pl->thaw();
4223                 foo.push_back ((*i).pl);
4224         }
4225
4226
4227         if (!foo.empty()) {
4228                 cut_buffer->set (foo);
4229         }
4230
4231         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4232                 (*pl).playlist->thaw ();
4233                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4234         }
4235 }
4236
4237 void
4238 Editor::cut_copy_ranges (CutCopyOp op)
4239 {
4240         TrackSelection* ts;
4241         TrackSelection entered;
4242
4243         if (selection->tracks.empty()) {
4244                 if (!entered_track) {
4245                         return;
4246                 }
4247                 entered.push_back (entered_track);
4248                 ts = &entered;
4249         } else {
4250                 ts = &selection->tracks;
4251         }
4252
4253         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4254                 (*i)->cut_copy_clear (*selection, op);
4255         }
4256 }
4257
4258 void
4259 Editor::paste (float times)
4260 {
4261         paste_internal (get_preferred_edit_position(), times);
4262 }
4263
4264 void
4265 Editor::mouse_paste ()
4266 {
4267         nframes64_t where;
4268         bool ignored;
4269
4270         if (!mouse_frame (where, ignored)) {
4271                 return;
4272         }
4273
4274         snap_to (where);
4275         paste_internal (where, 1);
4276 }
4277
4278 void
4279 Editor::paste_internal (nframes64_t position, float times)
4280 {
4281         bool commit = false;
4282
4283         if (internal_editing()) {
4284                 if (cut_buffer->midi_notes.empty()) {
4285                         return;
4286                 }
4287         } else {
4288                 if (cut_buffer->empty()) {
4289                         return;
4290                 }
4291         }
4292
4293         if (position == max_frames) {
4294                 position = get_preferred_edit_position();
4295         }
4296
4297         begin_reversible_command (_("paste"));
4298
4299         TrackSelection ts;
4300         TrackSelection::iterator i;
4301         size_t nth;
4302
4303         /* get everything in the correct order */
4304
4305         if (!selection->tracks.empty()) {
4306                 sort_track_selection ();
4307                 ts = selection->tracks;
4308         } else if (entered_track) {
4309                 ts.push_back (entered_track);
4310         }
4311
4312         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4313
4314                 /* undo/redo is handled by individual tracks/regions */
4315
4316                 if (internal_editing()) {
4317
4318                         RegionSelection rs;
4319                         RegionSelection::iterator r;
4320                         MidiNoteSelection::iterator cb;
4321
4322                         get_regions_at (rs, position, ts);
4323
4324                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4325                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4326                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4327                                 if (mrv) {
4328                                         mrv->paste (position, times, **cb);
4329                                         ++cb;
4330                                 }
4331                         }
4332
4333                 } else {
4334
4335                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4336                                 commit = true;
4337                         }
4338                 }
4339         }
4340
4341         if (commit) {
4342                 commit_reversible_command ();
4343         }
4344 }
4345
4346 void
4347 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4348 {
4349         boost::shared_ptr<Playlist> playlist;
4350         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4351         RegionSelection foo;
4352
4353         nframes_t const start_frame = regions.start ();
4354         nframes_t const end_frame = regions.end_frame ();
4355
4356         begin_reversible_command (_("duplicate region"));
4357
4358         selection->clear_regions ();
4359
4360         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4361
4362                 boost::shared_ptr<Region> r ((*i)->region());
4363
4364                 TimeAxisView& tv = (*i)->get_time_axis_view();
4365                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4366                 latest_regionviews.clear ();
4367                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4368
4369                 playlist = (*i)->region()->playlist();
4370                 XMLNode &before = playlist->get_state();
4371                 playlist->duplicate (r, end_frame + (r->first_frame() - start_frame) + 1, times);
4372                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4373
4374                 c.disconnect ();
4375
4376                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4377         }
4378
4379         commit_reversible_command ();
4380
4381         if (!foo.empty()) {
4382                 selection->set (foo);
4383         }
4384 }
4385
4386 void
4387 Editor::duplicate_selection (float times)
4388 {
4389         if (selection->time.empty() || selection->tracks.empty()) {
4390                 return;
4391         }
4392
4393         boost::shared_ptr<Playlist> playlist;
4394         vector<boost::shared_ptr<Region> > new_regions;
4395         vector<boost::shared_ptr<Region> >::iterator ri;
4396
4397         create_region_from_selection (new_regions);
4398
4399         if (new_regions.empty()) {
4400                 return;
4401         }
4402
4403         begin_reversible_command (_("duplicate selection"));
4404
4405         ri = new_regions.begin();
4406
4407         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4408                 if ((playlist = (*i)->playlist()) == 0) {
4409                         continue;
4410                 }
4411                 XMLNode &before = playlist->get_state();
4412                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4413                 XMLNode &after = playlist->get_state();
4414                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4415
4416                 ++ri;
4417                 if (ri == new_regions.end()) {
4418                         --ri;
4419                 }
4420         }
4421
4422         commit_reversible_command ();
4423 }
4424
4425 void
4426 Editor::reset_point_selection ()
4427 {
4428         /* reset all selected points to the relevant default value */
4429
4430         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4431
4432                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4433
4434                 if (atv) {
4435                         atv->reset_objects (selection->points);
4436                 }
4437         }
4438 }
4439
4440 void
4441 Editor::center_playhead ()
4442 {
4443         float page = _canvas_width * frames_per_unit;
4444         center_screen_internal (playhead_cursor->current_frame, page);
4445 }
4446
4447 void
4448 Editor::center_edit_point ()
4449 {
4450         float page = _canvas_width * frames_per_unit;
4451         center_screen_internal (get_preferred_edit_position(), page);
4452 }
4453
4454 void
4455 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4456 {
4457         begin_reversible_command (_("clear playlist"));
4458         XMLNode &before = playlist->get_state();
4459         playlist->clear ();
4460         XMLNode &after = playlist->get_state();
4461         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4462         commit_reversible_command ();
4463 }
4464
4465 void
4466 Editor::nudge_track (bool use_edit, bool forwards)
4467 {
4468         boost::shared_ptr<Playlist> playlist;
4469         nframes64_t distance;
4470         nframes64_t next_distance;
4471         nframes64_t start;
4472
4473         if (use_edit) {
4474                 start = get_preferred_edit_position();
4475         } else {
4476                 start = 0;
4477         }
4478
4479         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4480                 return;
4481         }
4482
4483         if (selection->tracks.empty()) {
4484                 return;
4485         }
4486
4487         begin_reversible_command (_("nudge track"));
4488
4489         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4490
4491                 if ((playlist = (*i)->playlist()) == 0) {
4492                         continue;
4493                 }
4494
4495                 XMLNode &before = playlist->get_state();
4496                 playlist->nudge_after (start, distance, forwards);
4497                 XMLNode &after = playlist->get_state();
4498                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4499         }
4500
4501         commit_reversible_command ();
4502 }
4503
4504 void
4505 Editor::remove_last_capture ()
4506 {
4507         vector<string> choices;
4508         string prompt;
4509
4510         if (!session) {
4511                 return;
4512         }
4513
4514         if (Config->get_verify_remove_last_capture()) {
4515                 prompt  = _("Do you really want to destroy the last capture?"
4516                             "\n(This is destructive and cannot be undone)");
4517
4518                 choices.push_back (_("No, do nothing."));
4519                 choices.push_back (_("Yes, destroy it."));
4520
4521                 Gtkmm2ext::Choice prompter (prompt, choices);
4522
4523                 if (prompter.run () == 1) {
4524                         session->remove_last_capture ();
4525                 }
4526
4527         } else {
4528                 session->remove_last_capture();
4529         }
4530 }
4531
4532 void
4533 Editor::normalize_region ()
4534 {
4535         if (!session) {
4536                 return;
4537         }
4538
4539         RegionSelection rs;
4540         get_regions_for_action (rs);
4541
4542         if (rs.empty()) {
4543                 return;
4544         }
4545
4546         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4547         HBox hbox;
4548         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4549         SpinButton spin (0.2, 2);
4550         spin.set_range (-112, 0);
4551         spin.set_increments (0.1, 1);
4552         spin.set_value (0);
4553         hbox.pack_start (spin);
4554         spin.set_value (_last_normalization_value);
4555         hbox.pack_start (*manage (new Label (_("dbFS"))));
4556         hbox.show_all ();
4557         dialog.get_vbox()->pack_start (hbox);
4558         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4559         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4560
4561         if (dialog.run () == RESPONSE_CANCEL) {
4562                 return;
4563         }
4564
4565         begin_reversible_command (_("normalize"));
4566
4567         track_canvas->get_window()->set_cursor (*wait_cursor);
4568         gdk_flush ();
4569
4570         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4571                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4572                 if (!arv)
4573                         continue;
4574                 XMLNode &before = arv->region()->get_state();
4575                 arv->audio_region()->normalize_to (spin.get_value());
4576                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4577         }
4578
4579         commit_reversible_command ();
4580         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4581
4582         _last_normalization_value = spin.get_value ();
4583 }
4584
4585
4586 void
4587 Editor::reset_region_scale_amplitude ()
4588 {
4589         if (!session) {
4590                 return;
4591         }
4592
4593         RegionSelection rs;
4594
4595         get_regions_for_action (rs);
4596
4597         if (rs.empty()) {
4598                 return;
4599         }
4600
4601         begin_reversible_command ("reset gain");
4602
4603         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4604                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4605                 if (!arv)
4606                         continue;
4607                 XMLNode &before = arv->region()->get_state();
4608                 arv->audio_region()->set_scale_amplitude (1.0f);
4609                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4610         }
4611
4612         commit_reversible_command ();
4613 }
4614
4615 void
4616 Editor::adjust_region_scale_amplitude (bool up)
4617 {
4618         if (!session) {
4619                 return;
4620         }
4621
4622         RegionSelection rs;
4623
4624         get_regions_for_action (rs);
4625
4626         if (rs.empty()) {
4627                 return;
4628         }
4629
4630         begin_reversible_command ("denormalize");
4631
4632         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4633                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4634                 if (!arv)
4635                         continue;
4636                 XMLNode &before = arv->region()->get_state();
4637
4638                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4639
4640                 if (up) {
4641                         fraction += 0.05;
4642                         fraction = min (fraction, 1.0);
4643                 } else {
4644                         fraction -= 0.05;
4645                         fraction = max (fraction, 0.0);
4646                 }
4647
4648                 if (!up && fraction <= 0) {
4649                         continue;
4650                 }
4651
4652                 fraction = slider_position_to_gain (fraction);
4653
4654                 if (up && fraction >= 2.0) {
4655                         continue;
4656                 }
4657
4658                 arv->audio_region()->set_scale_amplitude (fraction);
4659                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4660         }
4661
4662         commit_reversible_command ();
4663 }
4664
4665
4666 void
4667 Editor::reverse_region ()
4668 {
4669         if (!session) {
4670                 return;
4671         }
4672
4673         Reverse rev (*session);
4674         apply_filter (rev, _("reverse regions"));
4675 }
4676
4677 void
4678 Editor::strip_region_silence ()
4679 {
4680         if (!session) {
4681                 return;
4682         }
4683
4684         RegionSelection rs;
4685         get_regions_for_action (rs);
4686
4687         if (rs.empty()) {
4688                 return;
4689         }
4690
4691         std::list<boost::shared_ptr<AudioRegion> > ar;
4692
4693         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4694                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4695                 if (arv) {
4696                         ar.push_back (arv->audio_region ());
4697                 }
4698         }
4699
4700         StripSilenceDialog d (ar);
4701         int const r = d.run ();
4702
4703         if (r == Gtk::RESPONSE_OK) {
4704                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4705                 apply_filter (s, _("strip silence"));
4706         }
4707 }
4708
4709 Command*
4710 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4711 {
4712         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4713         mrv.selection_as_notelist (selected);
4714
4715         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4716         v.push_back (selected);
4717
4718         return op (mrv.midi_region()->model(), v);
4719 }
4720
4721 void
4722 Editor::apply_midi_note_edit_op (MidiOperator& op)
4723 {
4724         RegionSelection rs;
4725         Command* cmd;
4726
4727         get_regions_for_action (rs);
4728
4729         if (rs.empty()) {
4730                 return;
4731         }
4732
4733         begin_reversible_command (op.name ());
4734
4735         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4736                 RegionSelection::iterator tmp = r;
4737                 ++tmp;
4738
4739                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4740
4741                 if (mrv) {
4742                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4743                         if (cmd) {
4744                                 (*cmd)();
4745                                 session->add_command (cmd);
4746                         }
4747                 }
4748
4749                 r = tmp;
4750         }
4751
4752         commit_reversible_command ();
4753         rs.clear ();
4754 }
4755
4756 void
4757 Editor::quantize_region ()
4758 {
4759         if (!session) {
4760                 return;
4761         }
4762
4763         QuantizeDialog* qd = new QuantizeDialog (*this);
4764
4765         qd->present ();
4766         const int r = qd->run ();
4767         qd->hide ();
4768
4769         if (r == Gtk::RESPONSE_OK) {
4770                 Quantize quant (*session, Plain,
4771                                 qd->snap_start(), qd->snap_end(),
4772                                 qd->start_grid_size(), qd->end_grid_size(),
4773                                 qd->strength(), qd->swing(), qd->threshold());
4774
4775                 apply_midi_note_edit_op (quant);
4776         }
4777 }
4778
4779 void
4780 Editor::apply_filter (Filter& filter, string command)
4781 {
4782         RegionSelection rs;
4783
4784         get_regions_for_action (rs);
4785
4786         if (rs.empty()) {
4787                 return;
4788         }
4789
4790         begin_reversible_command (command);
4791
4792         track_canvas->get_window()->set_cursor (*wait_cursor);
4793         gdk_flush ();
4794
4795         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4796                 RegionSelection::iterator tmp = r;
4797                 ++tmp;
4798
4799                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4800                 if (arv) {
4801                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4802
4803                         if (arv->audio_region()->apply (filter) == 0) {
4804
4805                                 XMLNode &before = playlist->get_state();
4806
4807                                 if (filter.results.empty ()) {
4808
4809                                         /* no regions returned; remove the old one */
4810                                         playlist->remove_region (arv->region ());
4811
4812                                 } else {
4813
4814                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4815
4816                                         /* first region replaces the old one */
4817                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4818                                         ++res;
4819
4820                                         /* add the rest */
4821                                         while (res != filter.results.end()) {
4822                                                 playlist->add_region (*res, (*res)->position());
4823                                                 ++res;
4824                                         }
4825
4826                                 }
4827
4828                                 XMLNode &after = playlist->get_state();
4829                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4830                         } else {
4831                                 goto out;
4832                         }
4833                 }
4834
4835                 r = tmp;
4836         }
4837
4838         commit_reversible_command ();
4839         rs.clear ();
4840
4841   out:
4842         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4843 }
4844
4845 void
4846 Editor::region_selection_op (void (Region::*pmf)(void))
4847 {
4848         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4849                 Region* region = (*i)->region().get();
4850                 (region->*pmf)();
4851         }
4852 }
4853
4854
4855 void
4856 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4857 {
4858         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4859                 Region* region = (*i)->region().get();
4860                 (region->*pmf)(arg);
4861         }
4862 }
4863
4864 void
4865 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4866 {
4867         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4868                 Region* region = (*i)->region().get();
4869                 (region->*pmf)(yn);
4870         }
4871 }
4872
4873 void
4874 Editor::external_edit_region ()
4875 {
4876         /* more to come */
4877 }
4878
4879 void
4880 Editor::brush (nframes64_t pos)
4881 {
4882         RegionSelection sel;
4883         RegionSelection rs;
4884
4885         get_regions_for_action (rs);
4886
4887         snap_to (pos);
4888
4889         if (rs.empty()) {
4890                 return;
4891         }
4892
4893         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4894                 mouse_brush_insert_region ((*i), pos);
4895         }
4896 }
4897
4898 void
4899 Editor::reset_region_gain_envelopes ()
4900 {
4901         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4902
4903         if (!session || rs.empty()) {
4904                 return;
4905         }
4906
4907         session->begin_reversible_command (_("reset region gain"));
4908
4909         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4910                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4911                 if (arv) {
4912                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4913                         XMLNode& before (alist->get_state());
4914
4915                         arv->audio_region()->set_default_envelope ();
4916                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4917                 }
4918         }
4919
4920         session->commit_reversible_command ();
4921 }
4922
4923 void
4924 Editor::toggle_gain_envelope_visibility ()
4925 {
4926         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4927
4928         if (!session || rs.empty()) {
4929                 return;
4930         }
4931
4932         session->begin_reversible_command (_("region gain envelope visible"));
4933
4934         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4935                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4936                 if (arv) {
4937                         XMLNode &before = arv->region()->get_state ();
4938                         arv->set_envelope_visible (!arv->envelope_visible());
4939                         XMLNode &after = arv->region()->get_state ();
4940                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4941                 }
4942         }
4943
4944         session->commit_reversible_command ();
4945 }
4946
4947 void
4948 Editor::toggle_gain_envelope_active ()
4949 {
4950         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4951
4952         if (!session || rs.empty()) {
4953                 return;
4954         }
4955
4956         session->begin_reversible_command (_("region gain envelope active"));
4957
4958         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4959                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4960                 if (arv) {
4961                         XMLNode &before = arv->region()->get_state ();
4962                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4963                         XMLNode &after = arv->region()->get_state ();
4964                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4965                 }
4966         }
4967
4968         session->commit_reversible_command ();
4969 }
4970
4971 void
4972 Editor::toggle_region_lock ()
4973 {
4974         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4975
4976         if (!session || rs.empty()) {
4977                 return;
4978         }
4979
4980         session->begin_reversible_command (_("region lock"));
4981
4982         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4983                 XMLNode &before = (*i)->region()->get_state ();
4984                 (*i)->region()->set_locked (!(*i)->region()->locked());
4985                 XMLNode &after = (*i)->region()->get_state ();
4986                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
4987         }
4988
4989         session->commit_reversible_command ();
4990 }
4991
4992 void
4993 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4994 {
4995         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4996
4997         if (!session || rs.empty()) {
4998                 return;
4999         }
5000
5001         session->begin_reversible_command (_("region lock style"));
5002
5003         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5004                 XMLNode &before = (*i)->region()->get_state ();
5005                 (*i)->region()->set_position_lock_style (ps);
5006                 XMLNode &after = (*i)->region()->get_state ();
5007                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5008         }
5009
5010         session->commit_reversible_command ();
5011 }
5012
5013
5014 void
5015 Editor::toggle_region_mute ()
5016 {
5017         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5018
5019         if (!session || rs.empty()) {
5020                 return;
5021         }
5022
5023         session->begin_reversible_command (_("region mute"));
5024
5025         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5026                 XMLNode &before = (*i)->region()->get_state ();
5027                 (*i)->region()->set_muted (!(*i)->region()->muted());
5028                 XMLNode &after = (*i)->region()->get_state ();
5029                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5030         }
5031
5032         session->commit_reversible_command ();
5033 }
5034
5035 void
5036 Editor::toggle_region_opaque ()
5037 {
5038         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5039
5040         if (!session || rs.empty()) {
5041                 return;
5042         }
5043
5044         session->begin_reversible_command (_("region opacity"));
5045
5046         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5047                 XMLNode &before = (*i)->region()->get_state ();
5048                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5049                 XMLNode &after = (*i)->region()->get_state ();
5050                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5051         }
5052
5053         session->commit_reversible_command ();
5054 }
5055
5056 void
5057 Editor::toggle_record_enable ()
5058 {
5059         bool new_state = false;
5060         bool first = true;
5061         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5062                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5063                 if (!rtav)
5064                         continue;
5065                 if (!rtav->is_track())
5066                         continue;
5067
5068                 if (first) {
5069                         new_state = !rtav->track()->record_enabled();
5070                         first = false;
5071                 }
5072
5073                 rtav->track()->set_record_enable(new_state, this);
5074         }
5075 }
5076
5077
5078 void
5079 Editor::set_fade_length (bool in)
5080 {
5081         RegionSelection rs;
5082
5083         get_regions_for_action (rs, true);
5084
5085         if (rs.empty()) {
5086                 return;
5087         }
5088
5089         /* we need a region to measure the offset from the start */
5090
5091         RegionView* rv = rs.front ();
5092
5093         nframes64_t pos = get_preferred_edit_position();
5094         nframes64_t len;
5095         char* cmd;
5096
5097         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5098                 /* edit point is outside the relevant region */
5099                 return;
5100         }
5101
5102         if (in) {
5103                 if (pos <= rv->region()->position()) {
5104                         /* can't do it */
5105                         return;
5106                 }
5107                 len = pos - rv->region()->position();
5108                 cmd = _("set fade in length");
5109         } else {
5110                 if (pos >= rv->region()->last_frame()) {
5111                         /* can't do it */
5112                         return;
5113                 }
5114                 len = rv->region()->last_frame() - pos;
5115                 cmd = _("set fade out length");
5116         }
5117
5118         begin_reversible_command (cmd);
5119
5120         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5121                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5122
5123                 if (!tmp) {
5124                         return;
5125                 }
5126
5127                 boost::shared_ptr<AutomationList> alist;
5128                 if (in) {
5129                         alist = tmp->audio_region()->fade_in();
5130                 } else {
5131                         alist = tmp->audio_region()->fade_out();
5132                 }
5133
5134                 XMLNode &before = alist->get_state();
5135
5136                 if (in) {
5137                         tmp->audio_region()->set_fade_in_length (len);
5138                         tmp->audio_region()->set_fade_in_active (true);
5139                 } else {
5140                         tmp->audio_region()->set_fade_out_length (len);
5141                         tmp->audio_region()->set_fade_out_active (true);
5142                 }
5143
5144                 XMLNode &after = alist->get_state();
5145                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5146         }
5147
5148         commit_reversible_command ();
5149 }
5150
5151 void
5152 Editor::toggle_fade_active (bool in)
5153 {
5154         RegionSelection rs;
5155
5156         get_regions_for_action (rs);
5157
5158         if (rs.empty()) {
5159                 return;
5160         }
5161
5162         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5163         bool have_switch = false;
5164         bool yn = false;
5165
5166         begin_reversible_command (cmd);
5167
5168         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5169                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5170
5171                 if (!tmp) {
5172                         return;
5173                 }
5174
5175                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5176
5177                 /* make the behaviour consistent across all regions */
5178
5179                 if (!have_switch) {
5180                         if (in) {
5181                                 yn = region->fade_in_active();
5182                         } else {
5183                                 yn = region->fade_out_active();
5184                         }
5185                         have_switch = true;
5186                 }
5187
5188                 XMLNode &before = region->get_state();
5189                 if (in) {
5190                         region->set_fade_in_active (!yn);
5191                 } else {
5192                         region->set_fade_out_active (!yn);
5193                 }
5194                 XMLNode &after = region->get_state();
5195                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5196         }
5197
5198         commit_reversible_command ();
5199 }
5200
5201 void
5202 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5203 {
5204         RegionSelection rs;
5205
5206         get_regions_for_action (rs);
5207
5208         if (rs.empty()) {
5209                 return;
5210         }
5211
5212         begin_reversible_command (_("set fade in shape"));
5213
5214         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5215                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5216
5217                 if (!tmp) {
5218                         return;
5219                 }
5220
5221                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5222                 XMLNode &before = alist->get_state();
5223
5224                 tmp->audio_region()->set_fade_in_shape (shape);
5225
5226                 XMLNode &after = alist->get_state();
5227                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5228         }
5229
5230         commit_reversible_command ();
5231
5232 }
5233
5234 void
5235 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5236 {
5237         RegionSelection rs;
5238
5239         get_regions_for_action (rs);
5240
5241         if (rs.empty()) {
5242                 return;
5243         }
5244
5245         begin_reversible_command (_("set fade out shape"));
5246
5247         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5248                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5249
5250                 if (!tmp) {
5251                         return;
5252                 }
5253
5254                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5255                 XMLNode &before = alist->get_state();
5256
5257                 tmp->audio_region()->set_fade_out_shape (shape);
5258
5259                 XMLNode &after = alist->get_state();
5260                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5261         }
5262
5263         commit_reversible_command ();
5264 }
5265
5266 void
5267 Editor::set_fade_in_active (bool yn)
5268 {
5269         RegionSelection rs;
5270
5271         get_regions_for_action (rs);
5272
5273         if (rs.empty()) {
5274                 return;
5275         }
5276
5277         begin_reversible_command (_("set fade in active"));
5278
5279         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5280                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5281
5282                 if (!tmp) {
5283                         return;
5284                 }
5285
5286
5287                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5288
5289                 XMLNode &before = ar->get_state();
5290
5291                 ar->set_fade_in_active (yn);
5292
5293                 XMLNode &after = ar->get_state();
5294                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5295         }
5296
5297         commit_reversible_command ();
5298 }
5299
5300 void
5301 Editor::set_fade_out_active (bool yn)
5302 {
5303         RegionSelection rs;
5304
5305         get_regions_for_action (rs);
5306
5307         if (rs.empty()) {
5308                 return;
5309         }
5310
5311         begin_reversible_command (_("set fade out active"));
5312
5313         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5314                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5315
5316                 if (!tmp) {
5317                         return;
5318                 }
5319
5320                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5321
5322                 XMLNode &before = ar->get_state();
5323
5324                 ar->set_fade_out_active (yn);
5325
5326                 XMLNode &after = ar->get_state();
5327                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5328         }
5329
5330         commit_reversible_command ();
5331 }
5332
5333 void
5334 Editor::toggle_selected_region_fades (int dir)
5335 {
5336         RegionSelection rs;
5337         RegionSelection::iterator i;
5338         boost::shared_ptr<AudioRegion> ar;
5339         bool yn;
5340
5341         get_regions_for_action (rs);
5342
5343         if (rs.empty()) {
5344                 return;
5345         }
5346
5347         for (i = rs.begin(); i != rs.end(); ++i) {
5348                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5349                         if (dir == -1) {
5350                                 yn = ar->fade_out_active ();
5351                         } else {
5352                                 yn = ar->fade_in_active ();
5353                         }
5354                         break;
5355                 }
5356         }
5357
5358         if (i == rs.end()) {
5359                 return;
5360         }
5361
5362         /* XXX should this undo-able? */
5363
5364         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5365                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5366                         continue;
5367                 }
5368                 if (dir == 1 || dir == 0) {
5369                         ar->set_fade_in_active (!yn);
5370                 }
5371
5372                 if (dir == -1 || dir == 0) {
5373                         ar->set_fade_out_active (!yn);
5374                 }
5375         }
5376 }
5377
5378
5379 /** Update region fade visibility after its configuration has been changed */
5380 void
5381 Editor::update_region_fade_visibility ()
5382 {
5383         bool _fade_visibility = session->config.get_show_region_fades ();
5384
5385         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5386                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5387                 if (v) {
5388                         if (_fade_visibility) {
5389                                 v->audio_view()->show_all_fades ();
5390                         } else {
5391                                 v->audio_view()->hide_all_fades ();
5392                         }
5393                 }
5394         }
5395 }
5396
5397 /** Update crossfade visibility after its configuration has been changed */
5398 void
5399 Editor::update_xfade_visibility ()
5400 {
5401         _xfade_visibility = session->config.get_xfades_visible ();
5402
5403         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5404                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5405                 if (v) {
5406                         if (_xfade_visibility) {
5407                                 v->show_all_xfades ();
5408                         } else {
5409                                 v->hide_all_xfades ();
5410                         }
5411                 }
5412         }
5413 }
5414
5415 void
5416 Editor::set_edit_point ()
5417 {
5418         nframes64_t where;
5419         bool ignored;
5420
5421         if (!mouse_frame (where, ignored)) {
5422                 return;
5423         }
5424
5425         snap_to (where);
5426
5427         if (selection->markers.empty()) {
5428
5429                 mouse_add_new_marker (where);
5430
5431         } else {
5432                 bool ignored;
5433
5434                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5435
5436                 if (loc) {
5437                         loc->move_to (where);
5438                 }
5439         }
5440 }
5441
5442 void
5443 Editor::set_playhead_cursor ()
5444 {
5445         if (entered_marker) {
5446                 session->request_locate (entered_marker->position(), session->transport_rolling());
5447         } else {
5448                 nframes64_t where;
5449                 bool ignored;
5450
5451                 if (!mouse_frame (where, ignored)) {
5452                         return;
5453                 }
5454
5455                 snap_to (where);
5456
5457                 if (session) {
5458                         session->request_locate (where, session->transport_rolling());
5459                 }
5460         }
5461 }
5462
5463 void
5464 Editor::split ()
5465 {
5466         RegionSelection rs;
5467
5468         get_regions_for_action (rs, true);
5469
5470         nframes64_t where = get_preferred_edit_position();
5471
5472         if (rs.empty()) {
5473                 return;
5474         }
5475
5476         split_regions_at (where, rs);
5477 }
5478
5479 void
5480 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5481 {
5482         if (entered_track && mouse_mode == MouseObject) {
5483                 if (!selection->tracks.empty()) {
5484                         if (!selection->selected (entered_track)) {
5485                                 selection->add (entered_track);
5486                         }
5487                 } else {
5488                         /* there is no selection, but this operation requires/prefers selected objects */
5489
5490                         if (op_really_wants_one_track_if_none_are_selected) {
5491                                 selection->set (entered_track);
5492                         }
5493                 }
5494         }
5495 }
5496
5497 struct EditorOrderRouteSorter {
5498     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5499             /* use of ">" forces the correct sort order */
5500             return a->order_key ("editor") < b->order_key ("editor");
5501     }
5502 };
5503
5504 void
5505 Editor::select_next_route()
5506 {
5507         if (selection->tracks.empty()) {
5508                 selection->set (track_views.front());
5509                 return;
5510         }
5511
5512         TimeAxisView* current = selection->tracks.front();
5513
5514         RouteUI *rui;
5515         do {
5516                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5517                         if (*i == current) {
5518                                 ++i;
5519                                 if (i != track_views.end()) {
5520                                         current = (*i);
5521                                 } else {
5522                                         current = (*(track_views.begin()));
5523                                         //selection->set (*(track_views.begin()));
5524                                 }
5525                                 break;
5526                         }
5527                 }
5528                 rui = dynamic_cast<RouteUI *>(current);
5529         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5530
5531         selection->set(current);
5532
5533         ensure_track_visible(current);
5534 }
5535
5536 void
5537 Editor::select_prev_route()
5538 {
5539         if (selection->tracks.empty()) {
5540                 selection->set (track_views.front());
5541                 return;
5542         }
5543
5544         TimeAxisView* current = selection->tracks.front();
5545
5546         RouteUI *rui;
5547         do {
5548                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5549                         if (*i == current) {
5550                                 ++i;
5551                                 if (i != track_views.rend()) {
5552                                         current = (*i);
5553                                 } else {
5554                                         current = *(track_views.rbegin());
5555                                 }
5556                                 break;
5557                         }
5558                 }
5559                 rui = dynamic_cast<RouteUI *>(current);
5560         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5561
5562         selection->set (current);
5563
5564         ensure_track_visible(current);
5565 }
5566
5567 void
5568 Editor::ensure_track_visible(TimeAxisView *track)
5569 {
5570         if (track->hidden())
5571                 return;
5572
5573         double const current_view_min_y = vertical_adjustment.get_value();
5574         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5575
5576         double const track_min_y = track->y_position ();
5577         double const track_max_y = track->y_position () + track->effective_height ();
5578
5579         if (track_min_y >= current_view_min_y &&
5580             track_max_y <= current_view_max_y) {
5581                 return;
5582         }
5583
5584         double new_value;
5585
5586         if (track_min_y < current_view_min_y) {
5587                 // Track is above the current view
5588                 new_value = track_min_y;
5589         } else {
5590                 // Track is below the current view
5591                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5592         }
5593
5594         vertical_adjustment.set_value(new_value);
5595 }
5596
5597 void
5598 Editor::set_loop_from_selection (bool play)
5599 {
5600         if (session == 0 || selection->time.empty()) {
5601                 return;
5602         }
5603
5604         nframes64_t start = selection->time[clicked_selection].start;
5605         nframes64_t end = selection->time[clicked_selection].end;
5606
5607         set_loop_range (start, end,  _("set loop range from selection"));
5608
5609         if (play) {
5610                 session->request_play_loop (true);
5611                 session->request_locate (start, true);
5612         }
5613 }
5614
5615 void
5616 Editor::set_loop_from_edit_range (bool play)
5617 {
5618         if (session == 0) {
5619                 return;
5620         }
5621
5622         nframes64_t start;
5623         nframes64_t end;
5624
5625         if (!get_edit_op_range (start, end)) {
5626                 return;
5627         }
5628
5629         set_loop_range (start, end,  _("set loop range from edit range"));
5630
5631         if (play) {
5632                 session->request_play_loop (true);
5633                 session->request_locate (start, true);
5634         }
5635 }
5636
5637 void
5638 Editor::set_loop_from_region (bool play)
5639 {
5640         nframes64_t start = max_frames;
5641         nframes64_t end = 0;
5642
5643         RegionSelection rs;
5644
5645         get_regions_for_action (rs);
5646
5647         if (rs.empty()) {
5648                 return;
5649         }
5650
5651         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5652                 if ((*i)->region()->position() < start) {
5653                         start = (*i)->region()->position();
5654                 }
5655                 if ((*i)->region()->last_frame() + 1 > end) {
5656                         end = (*i)->region()->last_frame() + 1;
5657                 }
5658         }
5659
5660         set_loop_range (start, end, _("set loop range from region"));
5661
5662         if (play) {
5663                 session->request_play_loop (true);
5664                 session->request_locate (start, true);
5665         }
5666 }
5667
5668 void
5669 Editor::set_punch_from_selection ()
5670 {
5671         if (session == 0 || selection->time.empty()) {
5672                 return;
5673         }
5674
5675         nframes64_t start = selection->time[clicked_selection].start;
5676         nframes64_t end = selection->time[clicked_selection].end;
5677
5678         set_punch_range (start, end,  _("set punch range from selection"));
5679 }
5680
5681 void
5682 Editor::set_punch_from_edit_range ()
5683 {
5684         if (session == 0) {
5685                 return;
5686         }
5687
5688         nframes64_t start;
5689         nframes64_t end;
5690
5691         if (!get_edit_op_range (start, end)) {
5692                 return;
5693         }
5694
5695         set_punch_range (start, end,  _("set punch range from edit range"));
5696 }
5697
5698 void
5699 Editor::set_punch_from_region ()
5700 {
5701         nframes64_t start = max_frames;
5702         nframes64_t end = 0;
5703
5704         RegionSelection rs;
5705
5706         get_regions_for_action (rs);
5707
5708         if (rs.empty()) {
5709                 return;
5710         }
5711
5712         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5713                 if ((*i)->region()->position() < start) {
5714                         start = (*i)->region()->position();
5715                 }
5716                 if ((*i)->region()->last_frame() + 1 > end) {
5717                         end = (*i)->region()->last_frame() + 1;
5718                 }
5719         }
5720
5721         set_punch_range (start, end, _("set punch range from region"));
5722 }
5723
5724 void
5725 Editor::pitch_shift_regions ()
5726 {
5727         RegionSelection rs;
5728
5729         get_regions_for_action (rs);
5730
5731         if (rs.empty()) {
5732                 return;
5733         }
5734
5735         pitch_shift (rs, 1.2);
5736 }
5737
5738 void
5739 Editor::use_region_as_bar ()
5740 {
5741         if (!session) {
5742                 return;
5743         }
5744
5745         RegionSelection rs;
5746
5747         get_regions_for_action (rs);
5748
5749         if (rs.empty()) {
5750                 return;
5751         }
5752
5753         RegionView* rv = rs.front();
5754
5755         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5756 }
5757
5758 void
5759 Editor::use_range_as_bar ()
5760 {
5761         nframes64_t start, end;
5762         if (get_edit_op_range (start, end)) {
5763                 define_one_bar (start, end);
5764         }
5765 }
5766
5767 void
5768 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5769 {
5770         nframes64_t length = end - start;
5771
5772         const Meter& m (session->tempo_map().meter_at (start));
5773
5774         /* length = 1 bar */
5775
5776         /* now we want frames per beat.
5777            we have frames per bar, and beats per bar, so ...
5778         */
5779
5780         double frames_per_beat = length / m.beats_per_bar();
5781
5782         /* beats per minute = */
5783
5784         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5785
5786         /* now decide whether to:
5787
5788             (a) set global tempo
5789             (b) add a new tempo marker
5790
5791         */
5792
5793         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5794
5795         bool do_global = false;
5796
5797         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5798
5799                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5800                    at the start, or create a new marker
5801                 */
5802
5803                 vector<string> options;
5804                 options.push_back (_("Cancel"));
5805                 options.push_back (_("Add new marker"));
5806                 options.push_back (_("Set global tempo"));
5807                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5808                           options);
5809                 c.set_default_response (2);
5810
5811                 switch (c.run()) {
5812                 case 0:
5813                         return;
5814
5815                 case 2:
5816                         do_global = true;
5817                         break;
5818
5819                 default:
5820                         do_global = false;
5821                 }
5822
5823         } else {
5824
5825                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5826                    if the marker is at the region starter, change it, otherwise add
5827                    a new tempo marker
5828                 */
5829         }
5830
5831         begin_reversible_command (_("set tempo from region"));
5832         XMLNode& before (session->tempo_map().get_state());
5833
5834         if (do_global) {
5835                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5836         } else if (t.frame() == start) {
5837                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5838         } else {
5839                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5840         }
5841
5842         XMLNode& after (session->tempo_map().get_state());
5843
5844         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5845         commit_reversible_command ();
5846 }
5847
5848 void
5849 Editor::split_region_at_transients ()
5850 {
5851         AnalysisFeatureList positions;
5852
5853         if (!session) {
5854                 return;
5855         }
5856
5857         RegionSelection rs;
5858
5859         get_regions_for_action (rs);
5860
5861         if (rs.empty()) {
5862                 return;
5863         }
5864
5865         session->begin_reversible_command (_("split regions"));
5866
5867         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5868
5869                 RegionSelection::iterator tmp;
5870
5871                 tmp = i;
5872                 ++tmp;
5873
5874                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5875
5876                 if (ar && (ar->get_transients (positions) == 0)) {
5877                         split_region_at_points ((*i)->region(), positions, true);
5878                         positions.clear ();
5879                 }
5880
5881                 i = tmp;
5882         }
5883
5884         session->commit_reversible_command ();
5885
5886 }
5887
5888 void
5889 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5890 {
5891         bool use_rhythmic_rodent = false;
5892
5893         boost::shared_ptr<Playlist> pl = r->playlist();
5894
5895         if (!pl) {
5896                 return;
5897         }
5898
5899         if (positions.empty()) {
5900                 return;
5901         }
5902
5903
5904         if (positions.size() > 20) {
5905                 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);
5906                 MessageDialog msg (msgstr,
5907                                    false,
5908                                    Gtk::MESSAGE_INFO,
5909                                    Gtk::BUTTONS_OK_CANCEL);
5910
5911                 if (can_ferret) {
5912                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5913                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5914                 } else {
5915                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5916                 }
5917
5918                 msg.set_title (_("Excessive split?"));
5919                 msg.present ();
5920
5921                 int response = msg.run();
5922                 msg.hide ();
5923                 switch (response) {
5924                 case RESPONSE_OK:
5925                         break;
5926                 case RESPONSE_APPLY:
5927                         use_rhythmic_rodent = true;
5928                         break;
5929                 default:
5930                         return;
5931                 }
5932         }
5933
5934         if (use_rhythmic_rodent) {
5935                 show_rhythm_ferret ();
5936                 return;
5937         }
5938
5939         AnalysisFeatureList::const_iterator x;
5940
5941         nframes64_t pos = r->position();
5942
5943         XMLNode& before (pl->get_state());
5944
5945         x = positions.begin();
5946
5947         while (x != positions.end()) {
5948                 if ((*x) > pos) {
5949                         break;
5950                 }
5951                 ++x;
5952         }
5953
5954         if (x == positions.end()) {
5955                 return;
5956         }
5957
5958         pl->freeze ();
5959         pl->remove_region (r);
5960
5961         while (x != positions.end()) {
5962
5963                 /* file start = original start + how far we from the initial position ?
5964                  */
5965
5966                 nframes64_t file_start = r->start() + (pos - r->position());
5967
5968                 /* length = next position - current position
5969                  */
5970
5971                 nframes64_t len = (*x) - pos;
5972
5973                 /* XXX we do we really want to allow even single-sample regions?
5974                    shouldn't we have some kind of lower limit on region size?
5975                 */
5976
5977                 if (len <= 0) {
5978                         break;
5979                 }
5980
5981                 string new_name;
5982
5983                 if (session->region_name (new_name, r->name())) {
5984                         break;
5985                 }
5986
5987                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5988
5989                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5990                 pl->add_region (nr, pos);
5991
5992                 pos += len;
5993                 ++x;
5994
5995                 if (*x > r->last_frame()) {
5996
5997                         /* add final fragment */
5998
5999                         file_start = r->start() + (pos - r->position());
6000                         len = r->last_frame() - pos;
6001
6002                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
6003                         pl->add_region (nr, pos);
6004
6005                         break;
6006                 }
6007         }
6008
6009         pl->thaw ();
6010
6011         XMLNode& after (pl->get_state());
6012
6013         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6014 }
6015
6016 void
6017 Editor::tab_to_transient (bool forward)
6018 {
6019         AnalysisFeatureList positions;
6020
6021         if (!session) {
6022                 return;
6023         }
6024
6025         nframes64_t pos = session->audible_frame ();
6026
6027         if (!selection->tracks.empty()) {
6028
6029                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6030
6031                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6032
6033                         if (rtv) {
6034                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6035                                 if (ds) {
6036                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6037                                         if (pl) {
6038                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6039
6040                                                 if (result >= 0) {
6041                                                         positions.push_back (result);
6042                                                 }
6043                                         }
6044                                 }
6045                         }
6046                 }
6047
6048         } else {
6049
6050                 RegionSelection rs;
6051
6052                 get_regions_for_action (rs);
6053
6054                 if (rs.empty()) {
6055                         return;
6056                 }
6057
6058                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6059                         (*r)->region()->get_transients (positions);
6060                 }
6061         }
6062
6063         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6064
6065         if (forward) {
6066                 AnalysisFeatureList::iterator x;
6067
6068                 for (x = positions.begin(); x != positions.end(); ++x) {
6069                         if ((*x) > pos) {
6070                                 break;
6071                         }
6072                 }
6073
6074                 if (x != positions.end ()) {
6075                         session->request_locate (*x);
6076                 }
6077
6078         } else {
6079                 AnalysisFeatureList::reverse_iterator x;
6080
6081                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6082                         if ((*x) < pos) {
6083                                 break;
6084                         }
6085                 }
6086
6087                 if (x != positions.rend ()) {
6088                         session->request_locate (*x);
6089                 }
6090         }
6091 }
6092 void
6093 Editor::playhead_forward_to_grid ()
6094 {
6095         if (!session) return;
6096         nframes64_t pos = playhead_cursor->current_frame;
6097         if (pos < max_frames - 1) {
6098                 pos += 2;
6099                 snap_to_internal (pos, 1, false);
6100                 session->request_locate (pos);
6101         }
6102 }
6103
6104
6105 void
6106 Editor::playhead_backward_to_grid ()
6107 {
6108         if (!session) return;
6109         nframes64_t pos = playhead_cursor->current_frame;
6110         if (pos > 2) {
6111                 pos -= 2;
6112                 snap_to_internal (pos, -1, false);
6113                 session->request_locate (pos);
6114         }
6115 }
6116
6117 void
6118 Editor::set_track_height (uint32_t h)
6119 {
6120         TrackSelection& ts (selection->tracks);
6121
6122         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6123                 (*x)->set_height (h);
6124         }
6125 }
6126
6127 void
6128 Editor::toggle_tracks_active ()
6129 {
6130         TrackSelection& ts (selection->tracks);
6131         bool first = true;
6132         bool target = false;
6133
6134         if (ts.empty()) {
6135                 return;
6136         }
6137
6138         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6139                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6140
6141                 if (rtv) {
6142                         if (first) {
6143                                 target = !rtv->_route->active();
6144                                 first = false;
6145                         }
6146                         rtv->_route->set_active (target);
6147                 }
6148         }
6149 }
6150
6151 void
6152 Editor::remove_tracks ()
6153 {
6154         TrackSelection& ts (selection->tracks);
6155
6156         if (ts.empty()) {
6157                 return;
6158         }
6159
6160         vector<string> choices;
6161         string prompt;
6162         int ntracks = 0;
6163         int nbusses = 0;
6164         const char* trackstr;
6165         const char* busstr;
6166         vector<boost::shared_ptr<Route> > routes;
6167
6168         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6169                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6170                 if (rtv) {
6171                         if (rtv->is_track()) {
6172                                 ntracks++;
6173                         } else {
6174                                 nbusses++;
6175                         }
6176                 }
6177                 routes.push_back (rtv->_route);
6178         }
6179
6180         if (ntracks + nbusses == 0) {
6181                 return;
6182         }
6183
6184         if (ntracks > 1) {
6185                 trackstr = _("tracks");
6186         } else {
6187                 trackstr = _("track");
6188         }
6189
6190         if (nbusses > 1) {
6191                 busstr = _("busses");
6192         } else {
6193                 busstr = _("bus");
6194         }
6195
6196         if (ntracks) {
6197                 if (nbusses) {
6198                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6199                                                     "(You may also lose the playlists associated with the %2)\n\n"
6200                                                     "This action cannot be undone!"),
6201                                                   ntracks, trackstr, nbusses, busstr);
6202                 } else {
6203                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6204                                                     "(You may also lose the playlists associated with the %2)\n\n"
6205                                                     "This action cannot be undone!"),
6206                                                   ntracks, trackstr);
6207                 }
6208         } else if (nbusses) {
6209                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6210                                           nbusses, busstr);
6211         }
6212
6213         choices.push_back (_("No, do nothing."));
6214         if (ntracks + nbusses > 1) {
6215                 choices.push_back (_("Yes, remove them."));
6216         } else {
6217                 choices.push_back (_("Yes, remove it."));
6218         }
6219
6220         Choice prompter (prompt, choices);
6221
6222         if (prompter.run () != 1) {
6223                 return;
6224         }
6225
6226         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6227                 session->remove_route (*x);
6228         }
6229 }
6230
6231 void
6232 Editor::do_insert_time ()
6233 {
6234         if (selection->tracks.empty()) {
6235                 return;
6236         }
6237
6238         ArdourDialog d (*this, _("Insert Time"));
6239
6240         nframes64_t const pos = get_preferred_edit_position ();
6241
6242         d.get_vbox()->set_border_width (12);
6243         d.get_vbox()->set_spacing (4);
6244
6245         Table table (2, 2);
6246         table.set_spacings (4);
6247
6248         Label time_label (_("Time to insert:"));
6249         time_label.set_alignment (1, 0.5);
6250         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6251         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, false, true, true);
6252         clock.set (0);
6253         clock.set_session (session);
6254         clock.set_bbt_reference (pos);
6255         table.attach (clock, 1, 2, 0, 1);
6256
6257         Label intersected_label (_("Intersected regions should:"));
6258         intersected_label.set_alignment (1, 0.5);
6259         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6260         ComboBoxText intersected_combo;
6261         intersected_combo.append_text (_("stay in position"));
6262         intersected_combo.append_text (_("move"));
6263         intersected_combo.append_text (_("be split"));
6264         intersected_combo.set_active (0);
6265         table.attach (intersected_combo, 1, 2, 1, 2);
6266
6267         d.get_vbox()->pack_start (table);
6268
6269         CheckButton move_glued (_("Move glued regions"));
6270         d.get_vbox()->pack_start (move_glued);
6271         CheckButton move_markers (_("Move markers"));
6272         d.get_vbox()->pack_start (move_markers);
6273         CheckButton move_tempos (_("Move tempo and meter changes"));
6274         d.get_vbox()->pack_start (move_tempos);
6275
6276         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6277         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6278         d.show_all ();
6279
6280         int response = d.run ();
6281
6282         if (response != RESPONSE_OK) {
6283                 return;
6284         }
6285
6286         nframes64_t distance = clock.current_duration (pos);
6287
6288         if (distance == 0) {
6289                 return;
6290         }
6291
6292         InsertTimeOption opt;
6293
6294         switch (intersected_combo.get_active_row_number ()) {
6295         case 0:
6296                 opt = LeaveIntersected;
6297                 break;
6298         case 1:
6299                 opt = MoveIntersected;
6300                 break;
6301         case 2:
6302                 opt = SplitIntersected;
6303                 break;
6304         }
6305
6306         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6307 }
6308
6309 void
6310 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6311                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6312 {
6313         bool commit = false;
6314
6315         if (Config->get_edit_mode() == Lock) {
6316                 return;
6317         }
6318
6319         begin_reversible_command (_("insert time"));
6320
6321         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6322                 /* regions */
6323                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6324
6325                 if (pl) {
6326
6327                         XMLNode &before = pl->get_state();
6328
6329                         if (opt == SplitIntersected) {
6330                                 pl->split (pos);
6331                         }
6332
6333                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6334
6335                         XMLNode &after = pl->get_state();
6336
6337                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6338                         commit = true;
6339                 }
6340
6341                 /* automation */
6342                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6343                 if (rtav) {
6344                         rtav->route ()->shift (pos, frames);
6345                         commit = true;
6346                 }
6347         }
6348
6349         /* markers */
6350         if (markers_too) {
6351                 bool moved = false;
6352                 XMLNode& before (session->locations()->get_state());
6353                 Locations::LocationList copy (session->locations()->list());
6354
6355                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6356
6357                         Locations::LocationList::const_iterator tmp;
6358
6359                         if ((*i)->start() >= pos) {
6360                                 (*i)->set_start ((*i)->start() + frames);
6361                                 if (!(*i)->is_mark()) {
6362                                         (*i)->set_end ((*i)->end() + frames);
6363                                 }
6364                                 moved = true;
6365                         }
6366                 }
6367
6368                 if (moved) {
6369                         XMLNode& after (session->locations()->get_state());
6370                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6371                 }
6372         }
6373
6374         if (tempo_too) {
6375                 session->tempo_map().insert_time (pos, frames);
6376         }
6377
6378         if (commit) {
6379                 commit_reversible_command ();
6380         }
6381 }
6382
6383 void
6384 Editor::fit_selected_tracks ()
6385 {
6386         fit_tracks (selection->tracks);
6387 }
6388
6389 void
6390 Editor::fit_tracks (TrackSelection & tracks)
6391 {
6392         if (tracks.empty()) {
6393                 return;
6394         }
6395
6396         uint32_t child_heights = 0;
6397
6398         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6399
6400                 if (!(*t)->marked_for_display()) {
6401                         continue;
6402                 }
6403
6404                 child_heights += (*t)->effective_height() - (*t)->current_height();
6405         }
6406
6407         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6408         double first_y_pos = DBL_MAX;
6409
6410         if (h < TimeAxisView::hSmall) {
6411                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6412                 /* too small to be displayed */
6413                 return;
6414         }
6415
6416         undo_visual_stack.push_back (current_visual_state());
6417
6418         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6419
6420         bool prev_was_selected = false;
6421         bool is_selected = tracks.contains (track_views.front());
6422         bool next_is_selected;
6423
6424         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6425
6426                 TrackViewList::iterator next;
6427
6428                 next = t;
6429                 ++next;
6430
6431                 if (next != track_views.end()) {
6432                         next_is_selected = tracks.contains (*next);
6433                 } else {
6434                         next_is_selected = false;
6435                 }
6436
6437                 if (is_selected) {
6438                         (*t)->set_height (h);
6439                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6440                 } else {
6441                         if (prev_was_selected && next_is_selected) {
6442                                 hide_track_in_display (**t);
6443                         }
6444                 }
6445
6446                 prev_was_selected = is_selected;
6447                 is_selected = next_is_selected;
6448         }
6449
6450         /*
6451            set the controls_layout height now, because waiting for its size
6452            request signal handler will cause the vertical adjustment setting to fail
6453         */
6454
6455         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6456         vertical_adjustment.set_value (first_y_pos);
6457
6458         redo_visual_stack.push_back (current_visual_state());
6459 }
6460
6461 void
6462 Editor::save_visual_state (uint32_t n)
6463 {
6464         while (visual_states.size() <= n) {
6465                 visual_states.push_back (0);
6466         }
6467
6468         delete visual_states[n];
6469
6470         visual_states[n] = current_visual_state (true);
6471         gdk_beep ();
6472 }
6473
6474 void
6475 Editor::goto_visual_state (uint32_t n)
6476 {
6477         if (visual_states.size() <= n) {
6478                 return;
6479         }
6480
6481         if (visual_states[n] == 0) {
6482                 return;
6483         }
6484
6485         use_visual_state (*visual_states[n]);
6486 }
6487
6488 void
6489 Editor::start_visual_state_op (uint32_t n)
6490 {
6491         if (visual_state_op_connection.empty()) {
6492                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6493         }
6494 }
6495
6496 void
6497 Editor::cancel_visual_state_op (uint32_t n)
6498 {
6499         if (!visual_state_op_connection.empty()) {
6500                 visual_state_op_connection.disconnect();
6501                 goto_visual_state (n);
6502         }  else {
6503                 //we land here if called from the menu OR if end_visual_state_op has been called
6504                 //so check if we are already in visual state n
6505                 // XXX not yet checking it at all, but redoing does not hurt
6506                 goto_visual_state (n);
6507         }
6508 }
6509
6510 bool
6511 Editor::end_visual_state_op (uint32_t n)
6512 {
6513         visual_state_op_connection.disconnect();
6514         save_visual_state (n);
6515
6516         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6517         char buf[32];
6518         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6519         pup->set_text (buf);
6520         pup->touch();
6521
6522         return false; // do not call again
6523 }
6524