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
  29 #include <pbd/error.h>
  30 #include <pbd/basename.h>
  31 #include <pbd/pthread_utils.h>
  32 #include <pbd/memento_command.h>
  33 #include <pbd/whitespace.h>
  34
  35 #include <gtkmm2ext/utils.h>
  36 #include <gtkmm2ext/choice.h>
  37 #include <gtkmm2ext/window_title.h>
  38
  39 #include <ardour/audioengine.h>
  40 #include <ardour/session.h>
  41 #include <ardour/audioplaylist.h>
  42 #include <ardour/audioregion.h>
  43 #include <ardour/audio_diskstream.h>
  44 #include <ardour/utils.h>
  45 #include <ardour/location.h>
  46 #include <ardour/named_selection.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/quantize.h>
  53
  54 #include "ardour_ui.h"
  55 #include "editor.h"
  56 #include "time_axis_view.h"
  57 #include "audio_time_axis.h"
  58 #include "automation_time_axis.h"
  59 #include "streamview.h"
  60 #include "audio_region_view.h"
  61 #include "midi_region_view.h"
  62 #include "rgb_macros.h"
  63 #include "selection_templates.h"
  64 #include "selection.h"
  65 #include "editing.h"
  66 #include "gtk-custom-hruler.h"
  67 #include "gui_thread.h"
  68 #include "keyboard.h"
  69
  70 #include "i18n.h"
  71
  72 using namespace std;
  73 using namespace ARDOUR;
  74 using namespace PBD;
  75 using namespace sigc;
  76 using namespace Gtk;
  77 using namespace Gtkmm2ext;
  78 using namespace Editing;
  79
  80 /***********************************************************************
  81   Editor operations
  82  ***********************************************************************/
  83
  84 void
  85 Editor::undo (uint32_t n)
  86 {
  87         if (session) {
  88                 session->undo (n);
  89         }
  90 }
  91
  92 void
  93 Editor::redo (uint32_t n)
  94 {
  95         if (session) {
  96                 session->redo (n);
  97         }
  98 }
  99
 100 void
 101 Editor::split_region ()
 102 {
 103         split_region_at (get_preferred_edit_position());
 104 }
 105
 106 void
 107 Editor::split_region_at (nframes_t where)
 108 {
 109         split_regions_at (where, selection->regions);
 110 }
 111
 112 void
 113 Editor::split_regions_at (nframes_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
 167                 if (arv) {
 168                         _new_regionviews_show_envelope = arv->envelope_visible();
 169                 }
 170
 171                 if (pl) {
 172                         XMLNode &before = pl->get_state();
 173                         pl->split_region ((*a)->region(), where);
 174                         XMLNode &after = pl->get_state();
 175                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 176                 }
 177
 178                 a = tmp;
 179         }
 180         while (used_playlists.size() > 0) {
 181
 182                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 183                 (*i)->thaw();
 184                 used_playlists.pop_front();
 185         }
 186         commit_reversible_command ();
 187         _new_regionviews_show_envelope = false;
 188 }
 189
 190
 191 /** Remove `clicked_regionview' */
 192 void
 193 Editor::remove_clicked_region ()
 194 {
 195         if (clicked_routeview == 0 || clicked_regionview == 0) {
 196                 return;
 197         }
 198
 199         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
 200
 201         begin_reversible_command (_("remove region"));
 202         XMLNode &before = playlist->get_state();
 203         playlist->remove_region (clicked_regionview->region());
 204         XMLNode &after = playlist->get_state();
 205         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 206         commit_reversible_command ();
 207 }
 208
 209
 210 /** Remove the selected regions */
 211 void
 212 Editor::remove_selected_regions ()
 213 {
 214         if (selection->regions.empty()) {
 215                 return;
 216         }
 217
 218         /* XXX: should be called remove regions if we're removing more than one */
 219         begin_reversible_command (_("remove region"));
 220
 221
 222         while (!selection->regions.empty()) {
 223                 boost::shared_ptr<Region> region = selection->regions.front()->region ();
 224                 boost::shared_ptr<Playlist> playlist = region->playlist ();
 225
 226                 XMLNode &before = playlist->get_state();
 227                 playlist->remove_region (region);
 228                 XMLNode &after = playlist->get_state();
 229                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 230         }
 231
 232         commit_reversible_command ();
 233 }
 234
 235 boost::shared_ptr<Region>
 236 Editor::select_region_for_operation (int dir, TimeAxisView **tv)
 237 {
 238         RegionView* rv;
 239         boost::shared_ptr<Region> region;
 240         nframes_t start = 0;
 241
 242         if (selection->time.start () == selection->time.end_frame ()) {
 243
 244                 /* no current selection-> is there a selected regionview? */
 245
 246                 if (selection->regions.empty()) {
 247                         return region;
 248                 }
 249
 250         }
 251
 252         if (!selection->regions.empty()) {
 253
 254                 rv = *(selection->regions.begin());
 255                 (*tv) = &rv->get_time_axis_view();
 256                 region = rv->region();
 257
 258         } else if (!selection->tracks.empty()) {
 259
 260                 (*tv) = selection->tracks.front();
 261
 262                 RouteTimeAxisView* rtv;
 263
 264                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 265                         boost::shared_ptr<Playlist> pl;
 266
 267                         if ((pl = rtv->playlist()) == 0) {
 268                                 return region;
 269                         }
 270
 271                         region = pl->top_region_at (start);
 272                 }
 273         }
 274
 275         return region;
 276 }
 277
 278 void
 279 Editor::extend_selection_to_end_of_region (bool next)
 280 {
 281         TimeAxisView *tv;
 282         boost::shared_ptr<Region> region;
 283         nframes_t start;
 284
 285         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 286                 return;
 287         }
 288
 289         if (region && selection->time.start () == selection->time.end_frame ()) {
 290                 start = region->position();
 291         } else {
 292                 start = selection->time.start ();
 293         }
 294
 295         /* Try to leave the selection with the same route if possible */
 296
 297         if ((tv = selection->time.track) == 0) {
 298                 return;
 299         }
 300
 301         begin_reversible_command (_("extend selection"));
 302         selection->set (tv, start, region->position() + region->length());
 303         commit_reversible_command ();
 304 }
 305
 306 void
 307 Editor::extend_selection_to_start_of_region (bool previous)
 308 {
 309         TimeAxisView *tv;
 310         boost::shared_ptr<Region> region;
 311         nframes_t end;
 312
 313         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 314                 return;
 315         }
 316
 317         if (region && selection->time.start () == selection->time.end_frame ()) {
 318                 end = region->position() + region->length();
 319         } else {
 320                 end = selection->time.end_frame ();
 321         }
 322
 323         /* Try to leave the selection with the same route if possible */
 324
 325         if ((tv = selection->time.track) == 0) {
 326                 return;
 327         }
 328
 329         begin_reversible_command (_("extend selection"));
 330         selection->set (tv, region->position(), end);
 331         commit_reversible_command ();
 332 }
 333
 334 bool
 335 Editor::nudge_forward_release (GdkEventButton* ev)
 336 {
 337         if (ev->state & Keyboard::PrimaryModifier) {
 338                 nudge_forward (false, true);
 339         } else {
 340                 nudge_forward (false, false);
 341         }
 342         return false;
 343 }
 344
 345 bool
 346 Editor::nudge_backward_release (GdkEventButton* ev)
 347 {
 348         if (ev->state & Keyboard::PrimaryModifier) {
 349                 nudge_backward (false, true);
 350         } else {
 351                 nudge_backward (false, false);
 352         }
 353         return false;
 354 }
 355
 356
 357 void
 358 Editor::nudge_forward (bool next, bool force_playhead)
 359 {
 360         nframes_t distance;
 361         nframes_t next_distance;
 362
 363         if (!session) return;
 364
 365         if (!force_playhead && !selection->regions.empty()) {
 366
 367                 begin_reversible_command (_("nudge regions forward"));
 368
 369                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 370                         boost::shared_ptr<Region> r ((*i)->region());
 371
 372                         distance = get_nudge_distance (r->position(), next_distance);
 373
 374                         if (next) {
 375                                 distance = next_distance;
 376                         }
 377
 378                         XMLNode &before = r->playlist()->get_state();
 379                         r->set_position (r->position() + distance, this);
 380                         XMLNode &after = r->playlist()->get_state();
 381                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 382                 }
 383
 384                 commit_reversible_command ();
 385
 386
 387         } else if (!force_playhead && !selection->markers.empty()) {
 388
 389                 bool is_start;
 390                 Location* loc = find_location_from_marker (selection->markers.front(), is_start);
 391
 392                 if (loc) {
 393
 394                         begin_reversible_command (_("nudge location forward"));
 395
 396                         XMLNode& before (loc->get_state());
 397
 398                         if (is_start) {
 399                                 distance = get_nudge_distance (loc->start(), next_distance);
 400                                 if (next) {
 401                                         distance = next_distance;
 402                                 }
 403                                 if (max_frames - distance > loc->start() + loc->length()) {
 404                                         loc->set_start (loc->start() + distance);
 405                                 } else {
 406                                         loc->set_start (max_frames - loc->length());
 407                                 }
 408                         } else {
 409                                 distance = get_nudge_distance (loc->end(), next_distance);
 410                                 if (next) {
 411                                         distance = next_distance;
 412                                 }
 413                                 if (max_frames - distance > loc->end()) {
 414                                         loc->set_end (loc->end() + distance);
 415                                 } else {
 416                                         loc->set_end (max_frames);
 417                                 }
 418                         }
 419                         XMLNode& after (loc->get_state());
 420                         session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 421                         commit_reversible_command ();
 422                 }
 423
 424         } else {
 425                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 426                 session->request_locate (playhead_cursor->current_frame + distance);
 427         }
 428 }
 429
 430 void
 431 Editor::nudge_backward (bool next, bool force_playhead)
 432 {
 433         nframes_t distance;
 434         nframes_t next_distance;
 435
 436         if (!session) return;
 437
 438         if (!force_playhead && !selection->regions.empty()) {
 439
 440                 begin_reversible_command (_("nudge regions backward"));
 441
 442                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 443                         boost::shared_ptr<Region> r ((*i)->region());
 444
 445                         distance = get_nudge_distance (r->position(), next_distance);
 446
 447                         if (next) {
 448                                 distance = next_distance;
 449                         }
 450
 451                         XMLNode &before = r->playlist()->get_state();
 452
 453                         if (r->position() > distance) {
 454                                 r->set_position (r->position() - distance, this);
 455                         } else {
 456                                 r->set_position (0, this);
 457                         }
 458                         XMLNode &after = r->playlist()->get_state();
 459                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 460                 }
 461
 462                 commit_reversible_command ();
 463
 464         } else if (!force_playhead && !selection->markers.empty()) {
 465
 466                 bool is_start;
 467                 Location* loc = find_location_from_marker (selection->markers.front(), is_start);
 468
 469                 if (loc) {
 470
 471                         begin_reversible_command (_("nudge location forward"));
 472                         XMLNode& before (loc->get_state());
 473
 474                         if (is_start) {
 475                                 distance = get_nudge_distance (loc->start(), next_distance);
 476                                 if (next) {
 477                                         distance = next_distance;
 478                                 }
 479                                 if (distance < loc->start()) {
 480                                         loc->set_start (loc->start() - distance);
 481                                 } else {
 482                                         loc->set_start (0);
 483                                 }
 484                         } else {
 485                                 distance = get_nudge_distance (loc->end(), next_distance);
 486
 487                                 if (next) {
 488                                         distance = next_distance;
 489                                 }
 490
 491                                 if (distance < loc->end() - loc->length()) {
 492                                         loc->set_end (loc->end() - distance);
 493                                 } else {
 494                                         loc->set_end (loc->length());
 495                                 }
 496                         }
 497
 498                         XMLNode& after (loc->get_state());
 499                         session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 500                 }
 501
 502         } else {
 503
 504                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 505
 506                 if (playhead_cursor->current_frame > distance) {
 507                         session->request_locate (playhead_cursor->current_frame - distance);
 508                 } else {
 509                         session->goto_start();
 510                 }
 511         }
 512 }
 513
 514 void
 515 Editor::nudge_forward_capture_offset ()
 516 {
 517         nframes_t distance;
 518
 519         if (!session) return;
 520
 521         if (!selection->regions.empty()) {
 522
 523                 begin_reversible_command (_("nudge forward"));
 524
 525                 distance = session->worst_output_latency();
 526
 527                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 528                         boost::shared_ptr<Region> r ((*i)->region());
 529
 530                         XMLNode &before = r->playlist()->get_state();
 531                         r->set_position (r->position() + distance, this);
 532                         XMLNode &after = r->playlist()->get_state();
 533                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 534                 }
 535
 536                 commit_reversible_command ();
 537
 538         }
 539 }
 540
 541 void
 542 Editor::nudge_backward_capture_offset ()
 543 {
 544         nframes_t distance;
 545
 546         if (!session) return;
 547
 548         if (!selection->regions.empty()) {
 549
 550                 begin_reversible_command (_("nudge forward"));
 551
 552                 distance = session->worst_output_latency();
 553
 554                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 555                         boost::shared_ptr<Region> r ((*i)->region());
 556
 557                         XMLNode &before = r->playlist()->get_state();
 558
 559                         if (r->position() > distance) {
 560                                 r->set_position (r->position() - distance, this);
 561                         } else {
 562                                 r->set_position (0, this);
 563                         }
 564                         XMLNode &after = r->playlist()->get_state();
 565                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 566                 }
 567
 568                 commit_reversible_command ();
 569         }
 570 }
 571
 572 /* DISPLAY MOTION */
 573
 574 void
 575 Editor::move_to_start ()
 576 {
 577         session->goto_start ();
 578 }
 579
 580 void
 581 Editor::move_to_end ()
 582 {
 583
 584         session->request_locate (session->current_end_frame());
 585 }
 586
 587 void
 588 Editor::build_region_boundary_cache ()
 589 {
 590         nframes_t pos = 0;
 591         vector<RegionPoint> interesting_points;
 592         boost::shared_ptr<Region> r;
 593         TrackViewList tracks;
 594         bool at_end = false;
 595
 596         region_boundary_cache.clear ();
 597
 598         if (session == 0) {
 599                 return;
 600         }
 601
 602         switch (snap_type) {
 603         case SnapToRegionStart:
 604                 interesting_points.push_back (Start);
 605                 break;
 606         case SnapToRegionEnd:
 607                 interesting_points.push_back (End);
 608                 break;
 609         case SnapToRegionSync:
 610                 interesting_points.push_back (SyncPoint);
 611                 break;
 612         case SnapToRegionBoundary:
 613                 interesting_points.push_back (Start);
 614                 interesting_points.push_back (End);
 615                 break;
 616         default:
 617                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 618                 /*NOTREACHED*/
 619                 return;
 620         }
 621
 622         TimeAxisView *ontrack = 0;
 623         TrackViewList tlist;
 624
 625         if (!selection->tracks.empty()) {
 626                 tlist = selection->tracks;
 627         } else {
 628                 tlist = track_views;
 629         }
 630
 631         while (pos < session->current_end_frame() && !at_end) {
 632
 633                 nframes_t rpos;
 634                 nframes_t lpos = max_frames;
 635
 636                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 637
 638                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 639                                 if (*p == interesting_points.back()) {
 640                                         at_end = true;
 641                                 }
 642                                 /* move to next point type */
 643                                 continue;
 644                         }
 645
 646                         switch (*p) {
 647                         case Start:
 648                                 rpos = r->first_frame();
 649                                 break;
 650
 651                         case End:
 652                                 rpos = r->last_frame();
 653                                 break;
 654
 655                         case SyncPoint:
 656                                 rpos = r->adjust_to_sync (r->first_frame());
 657                                 break;
 658
 659                         default:
 660                                 break;
 661                         }
 662
 663                         float speed = 1.0f;
 664                         RouteTimeAxisView *rtav;
 665
 666                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 667                                 if (rtav->get_diskstream() != 0) {
 668                                         speed = rtav->get_diskstream()->speed();
 669                                 }
 670                         }
 671
 672                         rpos = track_frame_to_session_frame (rpos, speed);
 673
 674                         if (rpos < lpos) {
 675                                 lpos = rpos;
 676                         }
 677
 678                         /* prevent duplicates, but we don't use set<> because we want to be able
 679                            to sort later.
 680                         */
 681
 682                         vector<nframes_t>::iterator ri;
 683
 684                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 685                                 if (*ri == rpos) {
 686                                         break;
 687                                 }
 688                         }
 689
 690                         if (ri == region_boundary_cache.end()) {
 691                                 region_boundary_cache.push_back (rpos);
 692                         }
 693                 }
 694
 695                 pos = lpos + 1;
 696         }
 697
 698         /* finally sort to be sure that the order is correct */
 699
 700         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 701 }
 702
 703 boost::shared_ptr<Region>
 704 Editor::find_next_region (nframes_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 705 {
 706         TrackViewList::iterator i;
 707         nframes_t closest = max_frames;
 708         boost::shared_ptr<Region> ret;
 709         nframes_t rpos = 0;
 710
 711         float track_speed;
 712         nframes_t track_frame;
 713         RouteTimeAxisView *rtav;
 714
 715         for (i = tracks.begin(); i != tracks.end(); ++i) {
 716
 717                 nframes_t distance;
 718                 boost::shared_ptr<Region> r;
 719
 720                 track_speed = 1.0f;
 721                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 722                         if (rtav->get_diskstream()!=0)
 723                                 track_speed = rtav->get_diskstream()->speed();
 724                 }
 725
 726                 track_frame = session_frame_to_track_frame(frame, track_speed);
 727
 728                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 729                         continue;
 730                 }
 731
 732                 switch (point) {
 733                 case Start:
 734                         rpos = r->first_frame ();
 735                         break;
 736
 737                 case End:
 738                         rpos = r->last_frame ();
 739                         break;
 740
 741                 case SyncPoint:
 742                         rpos = r->adjust_to_sync (r->first_frame());
 743                         break;
 744                 }
 745
 746                 // rpos is a "track frame", converting it to "session frame"
 747                 rpos = track_frame_to_session_frame(rpos, track_speed);
 748
 749                 if (rpos > frame) {
 750                         distance = rpos - frame;
 751                 } else {
 752                         distance = frame - rpos;
 753                 }
 754
 755                 if (distance < closest) {
 756                         closest = distance;
 757                         if (ontrack != 0)
 758                                 *ontrack = (*i);
 759                         ret = r;
 760                 }
 761         }
 762
 763         return ret;
 764 }
 765
 766 nframes64_t
 767 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 768 {
 769         nframes64_t distance = max_frames;
 770         nframes64_t current_nearest = -1;
 771
 772         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 773                 nframes64_t contender;
 774                 nframes64_t d;
 775
 776                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 777
 778                 if (!rtv) {
 779                         continue;
 780                 }
 781
 782                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 783                         continue;
 784                 }
 785
 786                 d = ::llabs (pos - contender);
 787
 788                 if (d < distance) {
 789                         current_nearest = contender;
 790                         distance = d;
 791                 }
 792         }
 793
 794         return current_nearest;
 795 }
 796
 797 void
 798 Editor::cursor_to_region_boundary (Cursor* cursor, int32_t dir)
 799 {
 800         nframes64_t pos = cursor->current_frame;
 801         nframes64_t target;
 802
 803         if (!session) {
 804                 return;
 805         }
 806
 807         // so we don't find the current region again..
 808         if (dir > 0 || pos > 0) {
 809                 pos += dir;
 810         }
 811
 812         if (!selection->tracks.empty()) {
 813
 814                 target = find_next_region_boundary (pos, dir, selection->tracks);
 815
 816         } else {
 817
 818                 target = find_next_region_boundary (pos, dir, track_views);
 819         }
 820
 821         if (target < 0) {
 822                 return;
 823         }
 824
 825
 826         if (cursor == playhead_cursor) {
 827                 session->request_locate (target);
 828         } else {
 829                 cursor->set_position (target);
 830         }
 831 }
 832
 833 void
 834 Editor::cursor_to_next_region_boundary (Cursor* cursor)
 835 {
 836         cursor_to_region_boundary (cursor, 1);
 837 }
 838
 839 void
 840 Editor::cursor_to_previous_region_boundary (Cursor* cursor)
 841 {
 842         cursor_to_region_boundary (cursor, -1);
 843 }
 844
 845 void
 846 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 847 {
 848         boost::shared_ptr<Region> r;
 849         nframes_t pos = cursor->current_frame;
 850
 851         if (!session) {
 852                 return;
 853         }
 854
 855         TimeAxisView *ontrack = 0;
 856
 857         // so we don't find the current region again..
 858         if (dir>0 || pos>0)
 859                 pos+=dir;
 860
 861         if (!selection->tracks.empty()) {
 862
 863                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 864
 865         } else if (clicked_axisview) {
 866
 867                 TrackViewList t;
 868                 t.push_back (clicked_axisview);
 869
 870                 r = find_next_region (pos, point, dir, t, &ontrack);
 871
 872         } else {
 873
 874                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 875         }
 876
 877         if (r == 0) {
 878                 return;
 879         }
 880
 881         switch (point){
 882         case Start:
 883                 pos = r->first_frame ();
 884                 break;
 885
 886         case End:
 887                 pos = r->last_frame ();
 888                 break;
 889
 890         case SyncPoint:
 891                 pos = r->adjust_to_sync (r->first_frame());
 892                 break;
 893         }
 894
 895         float speed = 1.0f;
 896         RouteTimeAxisView *rtav;
 897
 898         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 899                 if (rtav->get_diskstream() != 0) {
 900                         speed = rtav->get_diskstream()->speed();
 901                 }
 902         }
 903
 904         pos = track_frame_to_session_frame(pos, speed);
 905
 906         if (cursor == playhead_cursor) {
 907                 session->request_locate (pos);
 908         } else {
 909                 cursor->set_position (pos);
 910         }
 911 }
 912
 913 void
 914 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 915 {
 916         cursor_to_region_point (cursor, point, 1);
 917 }
 918
 919 void
 920 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 921 {
 922         cursor_to_region_point (cursor, point, -1);
 923 }
 924
 925 void
 926 Editor::cursor_to_selection_start (Cursor *cursor)
 927 {
 928         nframes_t pos = 0;
 929         switch (mouse_mode) {
 930         case MouseObject:
 931                 if (!selection->regions.empty()) {
 932                         pos = selection->regions.start();
 933                 }
 934                 break;
 935
 936         case MouseRange:
 937                 if (!selection->time.empty()) {
 938                         pos = selection->time.start ();
 939                 }
 940                 break;
 941
 942         default:
 943                 return;
 944         }
 945
 946         if (cursor == playhead_cursor) {
 947                 session->request_locate (pos);
 948         } else {
 949                 cursor->set_position (pos);
 950         }
 951 }
 952
 953 void
 954 Editor::cursor_to_selection_end (Cursor *cursor)
 955 {
 956         nframes_t pos = 0;
 957
 958         switch (mouse_mode) {
 959         case MouseObject:
 960                 if (!selection->regions.empty()) {
 961                         pos = selection->regions.end_frame();
 962                 }
 963                 break;
 964
 965         case MouseRange:
 966                 if (!selection->time.empty()) {
 967                         pos = selection->time.end_frame ();
 968                 }
 969                 break;
 970
 971         default:
 972                 return;
 973         }
 974
 975         if (cursor == playhead_cursor) {
 976                 session->request_locate (pos);
 977         } else {
 978                 cursor->set_position (pos);
 979         }
 980 }
 981
 982 void
 983 Editor::selected_marker_to_region_boundary (int32_t dir)
 984 {
 985         nframes64_t target;
 986         Location* loc;
 987         bool ignored;
 988
 989         if (!session) {
 990                 return;
 991         }
 992
 993         if (selection->markers.empty()) {
 994                 nframes64_t mouse;
 995                 bool ignored;
 996
 997                 if (!mouse_frame (mouse, ignored)) {
 998                         return;
 999                 }
1000
1001                 add_location_mark (mouse);
1002         }
1003
1004         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1005                 return;
1006         }
1007
1008         nframes64_t pos = loc->start();
1009
1010         // so we don't find the current region again..
1011         if (dir > 0 || pos > 0) {
1012                 pos += dir;
1013         }
1014
1015         if (!selection->tracks.empty()) {
1016
1017                 target = find_next_region_boundary (pos, dir, selection->tracks);
1018
1019         } else {
1020
1021                 target = find_next_region_boundary (pos, dir, track_views);
1022         }
1023
1024         if (target < 0) {
1025                 return;
1026         }
1027
1028         loc->move_to (target);
1029 }
1030
1031 void
1032 Editor::selected_marker_to_next_region_boundary ()
1033 {
1034         selected_marker_to_region_boundary (1);
1035 }
1036
1037 void
1038 Editor::selected_marker_to_previous_region_boundary ()
1039 {
1040         selected_marker_to_region_boundary (-1);
1041 }
1042
1043 void
1044 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1045 {
1046         boost::shared_ptr<Region> r;
1047         nframes_t pos;
1048         Location* loc;
1049         bool ignored;
1050
1051         if (!session || selection->markers.empty()) {
1052                 return;
1053         }
1054
1055         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1056                 return;
1057         }
1058
1059         TimeAxisView *ontrack = 0;
1060
1061         pos = loc->start();
1062
1063         // so we don't find the current region again..
1064         if (dir>0 || pos>0)
1065                 pos+=dir;
1066
1067         if (!selection->tracks.empty()) {
1068
1069                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1070
1071         } else {
1072
1073                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1074         }
1075
1076         if (r == 0) {
1077                 return;
1078         }
1079
1080         switch (point){
1081         case Start:
1082                 pos = r->first_frame ();
1083                 break;
1084
1085         case End:
1086                 pos = r->last_frame ();
1087                 break;
1088
1089         case SyncPoint:
1090                 pos = r->adjust_to_sync (r->first_frame());
1091                 break;
1092         }
1093
1094         float speed = 1.0f;
1095         AudioTimeAxisView *atav;
1096
1097         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1098                 if (atav->get_diskstream() != 0) {
1099                         speed = atav->get_diskstream()->speed();
1100                 }
1101         }
1102
1103         pos = track_frame_to_session_frame(pos, speed);
1104
1105         loc->move_to (pos);
1106 }
1107
1108 void
1109 Editor::selected_marker_to_next_region_point (RegionPoint point)
1110 {
1111         selected_marker_to_region_point (point, 1);
1112 }
1113
1114 void
1115 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1116 {
1117         selected_marker_to_region_point (point, -1);
1118 }
1119
1120 void
1121 Editor::selected_marker_to_selection_start ()
1122 {
1123         nframes_t pos = 0;
1124         Location* loc;
1125         bool ignored;
1126
1127         if (!session || selection->markers.empty()) {
1128                 return;
1129         }
1130
1131         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1132                 return;
1133         }
1134
1135         switch (mouse_mode) {
1136         case MouseObject:
1137                 if (!selection->regions.empty()) {
1138                         pos = selection->regions.start();
1139                 }
1140                 break;
1141
1142         case MouseRange:
1143                 if (!selection->time.empty()) {
1144                         pos = selection->time.start ();
1145                 }
1146                 break;
1147
1148         default:
1149                 return;
1150         }
1151
1152         loc->move_to (pos);
1153 }
1154
1155 void
1156 Editor::selected_marker_to_selection_end ()
1157 {
1158         nframes_t pos = 0;
1159         Location* loc;
1160         bool ignored;
1161
1162         if (!session || selection->markers.empty()) {
1163                 return;
1164         }
1165
1166         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1167                 return;
1168         }
1169
1170         switch (mouse_mode) {
1171         case MouseObject:
1172                 if (!selection->regions.empty()) {
1173                         pos = selection->regions.end_frame();
1174                 }
1175                 break;
1176
1177         case MouseRange:
1178                 if (!selection->time.empty()) {
1179                         pos = selection->time.end_frame ();
1180                 }
1181                 break;
1182
1183         default:
1184                 return;
1185         }
1186
1187         loc->move_to (pos);
1188 }
1189
1190 void
1191 Editor::scroll_playhead (bool forward)
1192 {
1193         nframes_t pos = playhead_cursor->current_frame;
1194         nframes_t delta = (nframes_t) floor (current_page_frames() / 0.8);
1195
1196         if (forward) {
1197                 if (pos == max_frames) {
1198                         return;
1199                 }
1200
1201                 if (pos < max_frames - delta) {
1202                         pos += delta ;
1203                 } else {
1204                         pos = max_frames;
1205                 }
1206
1207         } else {
1208
1209                 if (pos == 0) {
1210                         return;
1211                 }
1212
1213                 if (pos > delta) {
1214                         pos -= delta;
1215                 } else {
1216                         pos = 0;
1217                 }
1218         }
1219
1220         session->request_locate (pos);
1221 }
1222
1223 void
1224 Editor::playhead_backward ()
1225 {
1226         nframes_t pos;
1227         nframes_t cnt;
1228         float prefix;
1229         bool was_floating;
1230
1231         if (get_prefix (prefix, was_floating)) {
1232                 cnt = 1;
1233         } else {
1234                 if (was_floating) {
1235                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1236                 } else {
1237                         cnt = (nframes_t) prefix;
1238                 }
1239         }
1240
1241         pos = playhead_cursor->current_frame;
1242
1243         if ((nframes_t) pos < cnt) {
1244                 pos = 0;
1245         } else {
1246                 pos -= cnt;
1247         }
1248
1249         /* XXX this is completely insane. with the current buffering
1250            design, we'll force a complete track buffer flush and
1251            reload, just to move 1 sample !!!
1252         */
1253
1254         session->request_locate (pos);
1255 }
1256
1257 void
1258 Editor::playhead_forward ()
1259 {
1260         nframes_t pos;
1261         nframes_t cnt;
1262         bool was_floating;
1263         float prefix;
1264
1265         if (get_prefix (prefix, was_floating)) {
1266                 cnt = 1;
1267         } else {
1268                 if (was_floating) {
1269                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1270                 } else {
1271                         cnt = (nframes_t) floor (prefix);
1272                 }
1273         }
1274
1275         pos = playhead_cursor->current_frame;
1276
1277         /* XXX this is completely insane. with the current buffering
1278            design, we'll force a complete track buffer flush and
1279            reload, just to move 1 sample !!!
1280         */
1281
1282         session->request_locate (pos+cnt);
1283 }
1284
1285 void
1286 Editor::cursor_align (bool playhead_to_edit)
1287 {
1288         if (!session) {
1289                 return;
1290         }
1291
1292         if (playhead_to_edit) {
1293
1294                 if (selection->markers.empty()) {
1295                         return;
1296                 }
1297
1298                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1299
1300         } else {
1301                 /* move selected markers to playhead */
1302
1303                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1304                         bool ignored;
1305
1306                         Location* loc = find_location_from_marker (*i, ignored);
1307
1308                         if (loc->is_mark()) {
1309                                 loc->set_start (playhead_cursor->current_frame);
1310                         } else {
1311                                 loc->set (playhead_cursor->current_frame,
1312                                           playhead_cursor->current_frame + loc->length());
1313                         }
1314                 }
1315         }
1316 }
1317
1318 void
1319 Editor::edit_cursor_backward ()
1320 {
1321         nframes64_t pos;
1322         nframes64_t cnt;
1323         float prefix;
1324         bool was_floating;
1325
1326         if (get_prefix (prefix, was_floating)) {
1327                 cnt = 1;
1328         } else {
1329                 if (was_floating) {
1330                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1331                 } else {
1332                         cnt = (nframes_t) prefix;
1333                 }
1334         }
1335
1336         if ((pos = get_preferred_edit_position()) < 0) {
1337                 return;
1338         }
1339
1340         if (pos < cnt) {
1341                 pos = 0;
1342         } else {
1343                 pos -= cnt;
1344         }
1345
1346         // EDIT CURSOR edit_cursor->set_position (pos);
1347 }
1348
1349 void
1350 Editor::edit_cursor_forward ()
1351 {
1352         //nframes_t pos;
1353         nframes_t cnt;
1354         bool was_floating;
1355         float prefix;
1356
1357         if (get_prefix (prefix, was_floating)) {
1358                 cnt = 1;
1359         } else {
1360                 if (was_floating) {
1361                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1362                 } else {
1363                         cnt = (nframes_t) floor (prefix);
1364                 }
1365         }
1366
1367         // pos = edit_cursor->current_frame;
1368         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1369 }
1370
1371 void
1372 Editor::goto_frame ()
1373 {
1374         float prefix;
1375         bool was_floating;
1376         nframes_t frame;
1377
1378         if (get_prefix (prefix, was_floating)) {
1379                 return;
1380         }
1381
1382         if (was_floating) {
1383                 frame = (nframes_t) floor (prefix * session->frame_rate());
1384         } else {
1385                 frame = (nframes_t) floor (prefix);
1386         }
1387
1388         session->request_locate (frame);
1389 }
1390
1391 void
1392 Editor::scroll_backward (float pages)
1393 {
1394         nframes_t frame;
1395         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
1396         bool was_floating;
1397         float prefix;
1398         nframes_t cnt;
1399
1400         if (get_prefix (prefix, was_floating)) {
1401                 cnt = (nframes_t) floor (pages * one_page);
1402         } else {
1403                 if (was_floating) {
1404                         cnt = (nframes_t) floor (prefix * session->frame_rate());
1405                 } else {
1406                         cnt = (nframes_t) floor (prefix * one_page);
1407                 }
1408         }
1409
1410         if (leftmost_frame < cnt) {
1411                 frame = 0;
1412         } else {
1413                 frame = leftmost_frame - cnt;
1414         }
1415
1416         reset_x_origin (frame);
1417 }
1418
1419 void
1420 Editor::scroll_forward (float pages)
1421 {
1422         nframes_t frame;
1423         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
1424         bool was_floating;
1425         float prefix;
1426         nframes_t cnt;
1427
1428         if (get_prefix (prefix, was_floating)) {
1429                 cnt = (nframes_t) floor (pages * one_page);
1430         } else {
1431                 if (was_floating) {
1432                         cnt = (nframes_t) floor (prefix * session->frame_rate());
1433                 } else {
1434                         cnt = (nframes_t) floor (prefix * one_page);
1435                 }
1436         }
1437
1438         if (max_frames - cnt < leftmost_frame) {
1439                 frame = max_frames - cnt;
1440         } else {
1441                 frame = leftmost_frame + cnt;
1442         }
1443
1444         reset_x_origin (frame);
1445 }
1446
1447 void
1448 Editor::scroll_tracks_down ()
1449 {
1450         float prefix;
1451         bool was_floating;
1452         int cnt;
1453
1454         if (get_prefix (prefix, was_floating)) {
1455                 cnt = 1;
1456         } else {
1457                 cnt = (int) floor (prefix);
1458         }
1459
1460         double vert_value = vertical_adjustment.get_value() + (cnt *
1461                 vertical_adjustment.get_page_size());
1462         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1463                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1464         }
1465         vertical_adjustment.set_value (vert_value);
1466 }
1467
1468 void
1469 Editor::scroll_tracks_up ()
1470 {
1471         float prefix;
1472         bool was_floating;
1473         int cnt;
1474
1475         if (get_prefix (prefix, was_floating)) {
1476                 cnt = 1;
1477         } else {
1478                 cnt = (int) floor (prefix);
1479         }
1480
1481         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1482 }
1483
1484 void
1485 Editor::scroll_tracks_down_line ()
1486 {
1487
1488         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1489         double vert_value = adj->get_value() + 20;
1490
1491         if (vert_value>adj->get_upper() - canvas_height) {
1492                 vert_value = adj->get_upper() - canvas_height;
1493         }
1494         adj->set_value (vert_value);
1495 }
1496
1497 void
1498 Editor::scroll_tracks_up_line ()
1499 {
1500         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1501         adj->set_value (adj->get_value() - 20);
1502 }
1503
1504 /* ZOOM */
1505
1506 void
1507 Editor::temporal_zoom_step (bool coarser)
1508 {
1509         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1510
1511         double nfpu;
1512
1513         nfpu = frames_per_unit;
1514
1515         if (coarser) {
1516                 nfpu *= 1.61803399;
1517         } else {
1518                 nfpu = max(1.0,(nfpu/1.61803399));
1519         }
1520
1521         temporal_zoom (nfpu);
1522 }
1523
1524 void
1525 Editor::temporal_zoom (gdouble fpu)
1526 {
1527         if (!session) return;
1528
1529         nframes64_t current_page = current_page_frames();
1530         nframes64_t current_leftmost = leftmost_frame;
1531         nframes64_t current_rightmost;
1532         nframes64_t current_center;
1533         nframes64_t new_page_size;
1534         nframes64_t half_page_size;
1535         nframes64_t leftmost_after_zoom = 0;
1536         nframes64_t where;
1537         bool in_track_canvas;
1538         double nfpu;
1539         double l;
1540
1541         /* XXX this limit is also in ::set_frames_per_unit() */
1542
1543         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1544                 return;
1545         }
1546
1547         nfpu = fpu;
1548
1549         new_page_size = (nframes_t) floor (canvas_width * nfpu);
1550         half_page_size = new_page_size / 2;
1551
1552         switch (zoom_focus) {
1553         case ZoomFocusLeft:
1554                 leftmost_after_zoom = current_leftmost;
1555                 break;
1556
1557         case ZoomFocusRight:
1558                 current_rightmost = leftmost_frame + current_page;
1559                 if (current_rightmost < new_page_size) {
1560                         leftmost_after_zoom = 0;
1561                 } else {
1562                         leftmost_after_zoom = current_rightmost - new_page_size;
1563                 }
1564                 break;
1565
1566         case ZoomFocusCenter:
1567                 current_center = current_leftmost + (current_page/2);
1568                 if (current_center < half_page_size) {
1569                         leftmost_after_zoom = 0;
1570                 } else {
1571                         leftmost_after_zoom = current_center - half_page_size;
1572                 }
1573                 break;
1574
1575         case ZoomFocusPlayhead:
1576                 /* try to keep the playhead in the same place */
1577
1578                 where = playhead_cursor->current_frame;
1579
1580                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1581
1582                 if (l < 0) {
1583                         leftmost_after_zoom = 0;
1584                 } else if (l > max_frames) {
1585                         leftmost_after_zoom = max_frames - new_page_size;
1586                 } else {
1587                         leftmost_after_zoom = (nframes64_t) l;
1588                 }
1589                 break;
1590
1591         case ZoomFocusMouse:
1592                 /* try to keep the mouse over the same point in the display */
1593
1594                 if (!mouse_frame (where, in_track_canvas)) {
1595                         /* use playhead instead */
1596                         where = playhead_cursor->current_frame;
1597
1598                         if (where < half_page_size) {
1599                                 leftmost_after_zoom = 0;
1600                         } else {
1601                                 leftmost_after_zoom = where - half_page_size;
1602                         }
1603
1604                 } else {
1605
1606                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1607
1608                         if (l < 0) {
1609                                 leftmost_after_zoom = 0;
1610                         } else if (l > max_frames) {
1611                                 leftmost_after_zoom = max_frames - new_page_size;
1612                         } else {
1613                                 leftmost_after_zoom = (nframes64_t) l;
1614                         }
1615                 }
1616
1617                 break;
1618
1619         case ZoomFocusEdit:
1620                 /* try to keep the edit point in the same place */
1621                 where = get_preferred_edit_position ();
1622
1623                 if (where > 0) {
1624
1625                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1626
1627                         if (l < 0) {
1628                                 leftmost_after_zoom = 0;
1629                         } else if (l > max_frames) {
1630                                 leftmost_after_zoom = max_frames - new_page_size;
1631                         } else {
1632                                 leftmost_after_zoom = (nframes64_t) l;
1633                         }
1634
1635                 } else {
1636                         /* edit point not defined */
1637                         return;
1638                 }
1639                 break;
1640
1641         }
1642
1643         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1644
1645         reposition_and_zoom (leftmost_after_zoom, nfpu);
1646 }
1647
1648 void
1649 Editor::temporal_zoom_region ()
1650 {
1651
1652         nframes64_t start = max_frames;
1653         nframes64_t end = 0;
1654
1655         ensure_entered_region_selected (true);
1656
1657         if (selection->regions.empty()) {
1658                 info << _("cannot set loop: no region selected") << endmsg;
1659                 return;
1660         }
1661
1662         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
1663                 if ((*i)->region()->position() < start) {
1664                         start = (*i)->region()->position();
1665                 }
1666                 if ((*i)->region()->last_frame() + 1 > end) {
1667                         end = (*i)->region()->last_frame() + 1;
1668                 }
1669         }
1670
1671         /* now comes an "interesting" hack ... make sure we leave a little space
1672            at each end of the editor so that the zoom doesn't fit the region
1673            precisely to the screen.
1674         */
1675
1676         GdkScreen* screen = gdk_screen_get_default ();
1677         gint pixwidth = gdk_screen_get_width (screen);
1678         gint mmwidth = gdk_screen_get_width_mm (screen);
1679         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1680         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1681         nframes_t extra_samples = unit_to_frame (one_centimeter_in_pixels);
1682
1683         if (start > extra_samples) {
1684                 start -= extra_samples;
1685         } else {
1686                 start = 0;
1687         }
1688
1689         if (max_frames - extra_samples > end) {
1690                 end += extra_samples;
1691         } else {
1692                 end = max_frames;
1693         }
1694
1695         temporal_zoom_by_frame (start, end, "zoom to region");
1696         zoomed_to_region = true;
1697 }
1698
1699 void
1700 Editor::toggle_zoom_region ()
1701 {
1702         if (zoomed_to_region) {
1703                 swap_visual_state ();
1704         } else {
1705                 temporal_zoom_region ();
1706         }
1707 }
1708
1709 void
1710 Editor::temporal_zoom_selection ()
1711 {
1712         if (!selection) return;
1713
1714         if (selection->time.empty()) {
1715                 return;
1716         }
1717
1718         nframes_t start = selection->time[clicked_selection].start;
1719         nframes_t end = selection->time[clicked_selection].end;
1720
1721         temporal_zoom_by_frame (start, end, "zoom to selection");
1722 }
1723
1724 void
1725 Editor::temporal_zoom_session ()
1726 {
1727         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1728
1729         if (session) {
1730                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1731         }
1732 }
1733
1734 void
1735 Editor::temporal_zoom_by_frame (nframes_t start, nframes_t end, const string & op)
1736 {
1737         if (!session) return;
1738
1739         if ((start == 0 && end == 0) || end < start) {
1740                 return;
1741         }
1742
1743         nframes_t range = end - start;
1744
1745         double new_fpu = (double)range / (double)canvas_width;
1746 //      double p2 = 1.0;
1747
1748 //      while (p2 < new_fpu) {
1749 //              p2 *= 2.0;
1750 //      }
1751 //      new_fpu = p2;
1752
1753         nframes_t new_page = (nframes_t) floor (canvas_width * new_fpu);
1754         nframes_t middle = (nframes_t) floor( (double)start + ((double)range / 2.0f ));
1755         nframes_t new_leftmost = (nframes_t) floor( (double)middle - ((double)new_page/2.0f));
1756
1757         if (new_leftmost > middle) new_leftmost = 0;
1758
1759 //      begin_reversible_command (op);
1760 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1761 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1762 //      commit_reversible_command ();
1763
1764         reposition_and_zoom (new_leftmost, new_fpu);
1765 }
1766
1767 void
1768 Editor::temporal_zoom_to_frame (bool coarser, nframes_t frame)
1769 {
1770         if (!session) return;
1771
1772         double range_before = frame - leftmost_frame;
1773         double new_fpu;
1774
1775         new_fpu = frames_per_unit;
1776
1777         if (coarser) {
1778                 new_fpu *= 1.61803399;
1779                 range_before *= 1.61803399;
1780         } else {
1781                 new_fpu = max(1.0,(new_fpu/1.61803399));
1782                 range_before /= 1.61803399;
1783         }
1784
1785         if (new_fpu == frames_per_unit) return;
1786
1787         nframes_t new_leftmost = frame - (nframes_t)range_before;
1788
1789         if (new_leftmost > frame) new_leftmost = 0;
1790
1791 //      begin_reversible_command (_("zoom to frame"));
1792 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1793 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1794 //      commit_reversible_command ();
1795
1796         reposition_and_zoom (new_leftmost, new_fpu);
1797 }
1798
1799 void
1800 Editor::add_location_from_selection ()
1801 {
1802         string rangename;
1803
1804         if (selection->time.empty()) {
1805                 return;
1806         }
1807
1808         if (session == 0 || clicked_axisview == 0) {
1809                 return;
1810         }
1811
1812         nframes_t start = selection->time[clicked_selection].start;
1813         nframes_t end = selection->time[clicked_selection].end;
1814
1815         session->locations()->next_available_name(rangename,"selection");
1816         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1817
1818         session->begin_reversible_command (_("add marker"));
1819         XMLNode &before = session->locations()->get_state();
1820         session->locations()->add (location, true);
1821         XMLNode &after = session->locations()->get_state();
1822         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1823         session->commit_reversible_command ();
1824 }
1825
1826 void
1827 Editor::add_location_mark (nframes64_t where)
1828 {
1829         string markername;
1830
1831         select_new_marker = true;
1832
1833         session->locations()->next_available_name(markername,"mark");
1834         Location *location = new Location (where, where, markername, Location::IsMark);
1835         session->begin_reversible_command (_("add marker"));
1836         XMLNode &before = session->locations()->get_state();
1837         session->locations()->add (location, true);
1838         XMLNode &after = session->locations()->get_state();
1839         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1840         session->commit_reversible_command ();
1841 }
1842
1843 void
1844 Editor::add_location_from_playhead_cursor ()
1845 {
1846         add_location_mark (session->audible_frame());
1847 }
1848
1849 void
1850 Editor::add_location_from_audio_region ()
1851 {
1852         if (selection->regions.empty()) {
1853                 return;
1854         }
1855
1856         RegionView* rv = *(selection->regions.begin());
1857         boost::shared_ptr<Region> region = rv->region();
1858
1859         Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1860         session->begin_reversible_command (_("add marker"));
1861         XMLNode &before = session->locations()->get_state();
1862         session->locations()->add (location, true);
1863         XMLNode &after = session->locations()->get_state();
1864         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1865         session->commit_reversible_command ();
1866 }
1867
1868 void
1869 Editor::amplitude_zoom_step (bool in)
1870 {
1871         gdouble zoom = 1.0;
1872
1873         if (in) {
1874                 zoom *= 2.0;
1875         } else {
1876                 if (zoom > 2.0) {
1877                         zoom /= 2.0;
1878                 } else {
1879                         zoom = 1.0;
1880                 }
1881         }
1882
1883 #ifdef FIX_FOR_CANVAS
1884         /* XXX DO SOMETHING */
1885 #endif
1886 }
1887
1888
1889 /* DELETION */
1890
1891
1892 void
1893 Editor::delete_sample_forward ()
1894 {
1895 }
1896
1897 void
1898 Editor::delete_sample_backward ()
1899 {
1900 }
1901
1902 void
1903 Editor::delete_screen ()
1904 {
1905 }
1906
1907 /* SEARCH */
1908
1909 void
1910 Editor::search_backwards ()
1911 {
1912         /* what ? */
1913 }
1914
1915 void
1916 Editor::search_forwards ()
1917 {
1918         /* what ? */
1919 }
1920
1921 /* MARKS */
1922
1923 void
1924 Editor::jump_forward_to_mark ()
1925 {
1926         if (!session) {
1927                 return;
1928         }
1929
1930         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
1931
1932         if (location) {
1933                 session->request_locate (location->start(), session->transport_rolling());
1934         } else {
1935                 session->request_locate (session->current_end_frame());
1936         }
1937 }
1938
1939 void
1940 Editor::jump_backward_to_mark ()
1941 {
1942         if (!session) {
1943                 return;
1944         }
1945
1946         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
1947
1948         if (location) {
1949                 session->request_locate (location->start(), session->transport_rolling());
1950         } else {
1951                 session->goto_start ();
1952         }
1953 }
1954
1955 void
1956 Editor::set_mark ()
1957 {
1958         nframes_t pos;
1959         float prefix;
1960         bool was_floating;
1961         string markername;
1962
1963         if (get_prefix (prefix, was_floating)) {
1964                 pos = session->audible_frame ();
1965         } else {
1966                 if (was_floating) {
1967                         pos = (nframes_t) floor (prefix * session->frame_rate ());
1968                 } else {
1969                         pos = (nframes_t) floor (prefix);
1970                 }
1971         }
1972
1973         session->locations()->next_available_name(markername,"mark");
1974         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
1975 }
1976
1977 void
1978 Editor::clear_markers ()
1979 {
1980         if (session) {
1981                 session->begin_reversible_command (_("clear markers"));
1982                 XMLNode &before = session->locations()->get_state();
1983                 session->locations()->clear_markers ();
1984                 XMLNode &after = session->locations()->get_state();
1985                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1986                 session->commit_reversible_command ();
1987         }
1988 }
1989
1990 void
1991 Editor::clear_ranges ()
1992 {
1993         if (session) {
1994                 session->begin_reversible_command (_("clear ranges"));
1995                 XMLNode &before = session->locations()->get_state();
1996
1997                 Location * looploc = session->locations()->auto_loop_location();
1998                 Location * punchloc = session->locations()->auto_punch_location();
1999
2000                 session->locations()->clear_ranges ();
2001                 // re-add these
2002                 if (looploc) session->locations()->add (looploc);
2003                 if (punchloc) session->locations()->add (punchloc);
2004
2005                 XMLNode &after = session->locations()->get_state();
2006                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2007                 session->commit_reversible_command ();
2008         }
2009 }
2010
2011 void
2012 Editor::clear_locations ()
2013 {
2014         session->begin_reversible_command (_("clear locations"));
2015         XMLNode &before = session->locations()->get_state();
2016         session->locations()->clear ();
2017         XMLNode &after = session->locations()->get_state();
2018         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2019         session->commit_reversible_command ();
2020         session->locations()->clear ();
2021 }
2022
2023 void
2024 Editor::unhide_markers ()
2025 {
2026         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2027                 Location *l = (*i).first;
2028                 if (l->is_hidden() && l->is_mark()) {
2029                         l->set_hidden(false, this);
2030                 }
2031         }
2032 }
2033
2034 void
2035 Editor::unhide_ranges ()
2036 {
2037         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2038                 Location *l = (*i).first;
2039                 if (l->is_hidden() && l->is_range_marker()) {
2040                         l->set_hidden(false, this);
2041                 }
2042         }
2043 }
2044
2045 /* INSERT/REPLACE */
2046
2047 void
2048 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2049 {
2050         double wx, wy;
2051         double cx, cy;
2052         TimeAxisView *tv;
2053         nframes_t where;
2054         RouteTimeAxisView *rtv = 0;
2055         boost::shared_ptr<Playlist> playlist;
2056
2057         track_canvas.window_to_world (x, y, wx, wy);
2058         wx += horizontal_adjustment.get_value();
2059         wy += vertical_adjustment.get_value();
2060
2061         GdkEvent event;
2062         event.type = GDK_BUTTON_RELEASE;
2063         event.button.x = wx;
2064         event.button.y = wy;
2065
2066         where = event_frame (&event, &cx, &cy);
2067
2068         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2069                 /* clearly outside canvas area */
2070                 return;
2071         }
2072
2073         if ((tv = trackview_by_y_position (cy)) == 0) {
2074                 return;
2075         }
2076
2077         if ((rtv = dynamic_cast<RouteTimeAxisView*>(tv)) == 0) {
2078                 return;
2079         }
2080
2081         if ((playlist = rtv->playlist()) == 0) {
2082                 return;
2083         }
2084
2085         snap_to (where);
2086
2087         begin_reversible_command (_("insert dragged region"));
2088         XMLNode &before = playlist->get_state();
2089         playlist->add_region (RegionFactory::create (region), where, 1.0);
2090         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2091         commit_reversible_command ();
2092 }
2093
2094 void
2095 Editor::insert_region_list_selection (float times)
2096 {
2097         RouteTimeAxisView *tv = 0;
2098         boost::shared_ptr<Playlist> playlist;
2099
2100         if (clicked_routeview != 0) {
2101                 tv = clicked_routeview;
2102         } else if (!selection->tracks.empty()) {
2103                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2104                         return;
2105                 }
2106         } else if (entered_track != 0) {
2107                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2108                         return;
2109                 }
2110         } else {
2111                 return;
2112         }
2113
2114         if ((playlist = tv->playlist()) == 0) {
2115                 return;
2116         }
2117
2118         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2119
2120         if (selected->count_selected_rows() != 1) {
2121                 return;
2122         }
2123
2124         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2125
2126         /* only one row selected, so rows.begin() is it */
2127
2128         TreeIter iter;
2129
2130         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2131
2132                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2133
2134                 begin_reversible_command (_("insert region"));
2135                 XMLNode &before = playlist->get_state();
2136                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2137                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2138                 commit_reversible_command ();
2139         }
2140 }
2141
2142 /* BUILT-IN EFFECTS */
2143
2144 void
2145 Editor::reverse_selection ()
2146 {
2147
2148 }
2149
2150 /* GAIN ENVELOPE EDITING */
2151
2152 void
2153 Editor::edit_envelope ()
2154 {
2155 }
2156
2157 /* PLAYBACK */
2158
2159 void
2160 Editor::transition_to_rolling (bool fwd)
2161 {
2162         if (!session) {
2163                 return;
2164         }
2165
2166         switch (Config->get_slave_source()) {
2167         case None:
2168         case JACK:
2169                 break;
2170         default:
2171                 /* transport controlled by the master */
2172                 return;
2173         }
2174
2175         if (session->is_auditioning()) {
2176                 session->cancel_audition ();
2177                 return;
2178         }
2179
2180         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2181 }
2182
2183 void
2184 Editor::toggle_playback (bool with_abort)
2185 {
2186         if (!session) {
2187                 return;
2188         }
2189
2190         switch (Config->get_slave_source()) {
2191         case None:
2192         case JACK:
2193                 break;
2194         default:
2195                 /* transport controlled by the master */
2196                 return;
2197         }
2198
2199         if (session->is_auditioning()) {
2200                 session->cancel_audition ();
2201                 return;
2202         }
2203
2204         if (session->transport_rolling()) {
2205                 session->request_stop (with_abort);
2206                 if (session->get_play_loop()) {
2207                         session->request_play_loop (false);
2208                 }
2209         } else {
2210                 session->request_transport_speed (1.0f);
2211         }
2212 }
2213
2214 void
2215 Editor::play_from_start ()
2216 {
2217         session->request_locate (session->current_start_frame(), true);
2218 }
2219
2220 void
2221 Editor::play_from_edit_point ()
2222 {
2223         session->request_locate (get_preferred_edit_position(), true);
2224 }
2225
2226 void
2227 Editor::play_from_edit_point_and_return ()
2228 {
2229         nframes64_t start_frame;
2230         nframes64_t return_frame;
2231
2232         /* don't reset the return frame if its already set */
2233
2234         if ((return_frame = session->requested_return_frame()) < 0) {
2235                 return_frame = session->audible_frame();
2236         }
2237
2238         start_frame = get_preferred_edit_position (true);
2239
2240         if (start_frame >= 0) {
2241                 session->request_roll_at_and_return (start_frame, return_frame);
2242         }
2243 }
2244
2245 void
2246 Editor::play_selection ()
2247 {
2248         if (selection->time.empty()) {
2249                 return;
2250         }
2251
2252         session->request_play_range (true);
2253 }
2254
2255 void
2256 Editor::loop_selected_region ()
2257 {
2258         if (!selection->regions.empty()) {
2259                 RegionView *rv = *(selection->regions.begin());
2260                 Location* tll;
2261
2262                 if ((tll = transport_loop_location()) != 0)  {
2263
2264                         tll->set (rv->region()->position(), rv->region()->last_frame());
2265
2266                         // enable looping, reposition and start rolling
2267
2268                         session->request_play_loop (true);
2269                         session->request_locate (tll->start(), false);
2270                         session->request_transport_speed (1.0f);
2271                 }
2272         }
2273 }
2274
2275 void
2276 Editor::play_location (Location& location)
2277 {
2278         if (location.start() <= location.end()) {
2279                 return;
2280         }
2281
2282         session->request_bounded_roll (location.start(), location.end());
2283 }
2284
2285 void
2286 Editor::loop_location (Location& location)
2287 {
2288         if (location.start() <= location.end()) {
2289                 return;
2290         }
2291
2292         Location* tll;
2293
2294         if ((tll = transport_loop_location()) != 0) {
2295                 tll->set (location.start(), location.end());
2296
2297                 // enable looping, reposition and start rolling
2298                 session->request_play_loop (true);
2299                 session->request_locate (tll->start(), true);
2300         }
2301 }
2302
2303 void
2304 Editor::raise_region ()
2305 {
2306         selection->foreach_region (&Region::raise);
2307 }
2308
2309 void
2310 Editor::raise_region_to_top ()
2311 {
2312         selection->foreach_region (&Region::raise_to_top);
2313 }
2314
2315 void
2316 Editor::lower_region ()
2317 {
2318         selection->foreach_region (&Region::lower);
2319 }
2320
2321 void
2322 Editor::lower_region_to_bottom ()
2323 {
2324         selection->foreach_region (&Region::lower_to_bottom);
2325 }
2326
2327 /** Show the region editor for the selected regions */
2328 void
2329 Editor::edit_region ()
2330 {
2331         selection->foreach_regionview (&RegionView::show_region_editor);
2332 }
2333
2334 void
2335 Editor::rename_region()
2336 {
2337         if (selection->regions.empty()) {
2338                 return;
2339         }
2340
2341         WindowTitle title (Glib::get_application_name());
2342         title += _("Rename Region");
2343
2344         ArdourDialog d (*this, title.get_string(), true, false);
2345         Entry entry;
2346         Label label (_("New name:"));
2347         HBox hbox;
2348
2349         hbox.set_spacing (6);
2350         hbox.pack_start (label, false, false);
2351         hbox.pack_start (entry, true, true);
2352
2353         d.get_vbox()->set_border_width (12);
2354         d.get_vbox()->pack_start (hbox, false, false);
2355
2356         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2357         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2358
2359         d.set_size_request (300, -1);
2360         d.set_position (Gtk::WIN_POS_MOUSE);
2361
2362         entry.set_text (selection->regions.front()->region()->name());
2363         entry.select_region (0, -1);
2364
2365         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2366
2367         d.show_all ();
2368
2369         entry.grab_focus();
2370
2371         int ret = d.run();
2372
2373         d.hide ();
2374
2375         if (ret == RESPONSE_OK) {
2376                 std::string str = entry.get_text();
2377                 strip_whitespace_edges (str);
2378                 if (!str.empty()) {
2379                         selection->regions.front()->region()->set_name (str);
2380                         redisplay_regions ();
2381                 }
2382         }
2383 }
2384
2385 void
2386 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2387 {
2388         if (session->is_auditioning()) {
2389                 session->cancel_audition ();
2390         }
2391
2392         // note: some potential for creativity here, because region doesn't
2393         // have to belong to the playlist that Route is handling
2394
2395         // bool was_soloed = route.soloed();
2396
2397         route.set_solo (true, this);
2398
2399         session->request_bounded_roll (region->position(), region->position() + region->length());
2400
2401         /* XXX how to unset the solo state ? */
2402 }
2403
2404 /** Start an audition of the first selected region */
2405 void
2406 Editor::play_edit_range ()
2407 {
2408         nframes64_t start, end;
2409
2410         if (get_edit_op_range (start, end)) {
2411                 session->request_bounded_roll (start, end);
2412         }
2413 }
2414
2415 void
2416 Editor::play_selected_region ()
2417 {
2418         nframes64_t start = max_frames;
2419         nframes64_t end = 0;
2420
2421         ExclusiveRegionSelection esr (*this, entered_regionview);
2422
2423         if (selection->regions.empty()) {
2424                 return;
2425         }
2426
2427         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2428                 if ((*i)->region()->position() < start) {
2429                         start = (*i)->region()->position();
2430                 }
2431                 if ((*i)->region()->last_frame() + 1 > end) {
2432                         end = (*i)->region()->last_frame() + 1;
2433                 }
2434         }
2435
2436         session->request_stop ();
2437         session->request_bounded_roll (start, end);
2438 }
2439
2440 void
2441 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2442 {
2443         session->audition_region (region);
2444 }
2445
2446 void
2447 Editor::build_interthread_progress_window ()
2448 {
2449         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2450
2451         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2452
2453         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2454         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2455
2456         // GTK2FIX: this button needs a modifiable label
2457
2458         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2459         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2460
2461         interthread_cancel_button.add (interthread_cancel_label);
2462
2463         interthread_progress_window->set_default_size (200, 100);
2464 }
2465
2466 void
2467 Editor::interthread_cancel_clicked ()
2468 {
2469         if (current_interthread_info) {
2470                 current_interthread_info->cancel = true;
2471         }
2472 }
2473
2474 void
2475 Editor::region_from_selection ()
2476 {
2477         if (clicked_axisview == 0) {
2478                 return;
2479         }
2480
2481         if (selection->time.empty()) {
2482                 return;
2483         }
2484
2485         nframes_t start = selection->time[clicked_selection].start;
2486         nframes_t end = selection->time[clicked_selection].end;
2487
2488         nframes_t selection_cnt = end - start + 1;
2489
2490         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2491                 boost::shared_ptr<AudioRegion> current;
2492                 boost::shared_ptr<Region> current_r;
2493                 boost::shared_ptr<Playlist> pl;
2494
2495                 nframes_t internal_start;
2496                 string new_name;
2497
2498                 if ((pl = (*i)->playlist()) == 0) {
2499                         continue;
2500                 }
2501
2502                 if ((current_r = pl->top_region_at (start)) == 0) {
2503                         continue;
2504                 }
2505
2506                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2507                 assert(current); // FIXME
2508                 if (current != 0) {
2509                         internal_start = start - current->position();
2510                         session->region_name (new_name, current->name(), true);
2511                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2512                 }
2513         }
2514 }
2515
2516 void
2517 Editor::create_region_from_selection (vector<boost::shared_ptr<AudioRegion> >& new_regions)
2518 {
2519         if (selection->time.empty() || selection->tracks.empty()) {
2520                 return;
2521         }
2522
2523         nframes_t start = selection->time[clicked_selection].start;
2524         nframes_t end = selection->time[clicked_selection].end;
2525
2526         sort_track_selection ();
2527
2528         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2529
2530                 boost::shared_ptr<AudioRegion> current;
2531                 boost::shared_ptr<Region> current_r;
2532                 boost::shared_ptr<Playlist> playlist;
2533                 nframes_t internal_start;
2534                 string new_name;
2535
2536                 if ((playlist = (*i)->playlist()) == 0) {
2537                         continue;
2538                 }
2539
2540                 if ((current_r = playlist->top_region_at(start)) == 0) {
2541                         continue;
2542                 }
2543
2544                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2545                         continue;
2546                 }
2547
2548                 internal_start = start - current->position();
2549                 session->region_name (new_name, current->name(), true);
2550
2551                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2552         }
2553 }
2554
2555 void
2556 Editor::split_multichannel_region ()
2557 {
2558         if (selection->regions.empty()) {
2559                 return;
2560         }
2561
2562         vector<boost::shared_ptr<AudioRegion> > v;
2563
2564         for (list<RegionView*>::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
2565
2566                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2567
2568                 if (!arv || arv->audio_region()->n_channels() < 2) {
2569                         continue;
2570                 }
2571
2572                 (arv)->audio_region()->separate_by_channel (*session, v);
2573         }
2574 }
2575
2576 void
2577 Editor::new_region_from_selection ()
2578 {
2579         region_from_selection ();
2580         cancel_selection ();
2581 }
2582
2583 static void
2584 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2585 {
2586         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2587         case OverlapNone:
2588                 break;
2589         default:
2590                 rs->push_back (rv);
2591         }
2592 }
2593
2594 void
2595 Editor::separate_regions_between (const TimeSelection& ts)
2596 {
2597         bool in_command = false;
2598         boost::shared_ptr<Playlist> playlist;
2599         RegionSelection new_selection;
2600         TrackSelection tmptracks;
2601
2602         if (selection->tracks.empty()) {
2603
2604                 /* use tracks with selected regions */
2605
2606                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2607                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2608
2609                         if (find (tmptracks.begin(), tmptracks.end(), tv) == tmptracks.end()) {
2610                                 tmptracks.push_back (tv);
2611                         }
2612                 }
2613
2614                 if (tmptracks.empty()) {
2615                         /* no regions selected: use all tracks */
2616                         tmptracks = track_views;
2617                 }
2618
2619         } else {
2620
2621                 tmptracks = selection->tracks;
2622
2623         }
2624
2625         sort_track_selection (&tmptracks);
2626
2627
2628
2629
2630         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2631
2632                 RouteTimeAxisView* rtv;
2633
2634                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2635
2636                         if (rtv->is_track()) {
2637
2638                                 /* no edits to destructive tracks */
2639
2640                                 if (rtv->track()->diskstream()->destructive()) {
2641                                         continue;
2642                                 }
2643
2644                                 if ((playlist = rtv->playlist()) != 0) {
2645
2646                                         XMLNode *before;
2647                                         bool got_some;
2648
2649                                         before = &(playlist->get_state());
2650                                         got_some = false;
2651
2652                                         /* XXX need to consider musical time selections here at some point */
2653
2654                                         double speed = rtv->get_diskstream()->speed();
2655
2656
2657                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2658
2659                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2660                                                 latest_regionviews.clear ();
2661
2662                                                 playlist->partition ((nframes_t)((*t).start * speed), (nframes_t)((*t).end * speed), true);
2663
2664                                                 c.disconnect ();
2665
2666                                                 if (!latest_regionviews.empty()) {
2667
2668                                                         got_some = true;
2669
2670                                                         rtv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2671
2672                                                         if (!in_command) {
2673                                                                 begin_reversible_command (_("separate"));
2674                                                                 in_command = true;
2675                                                         }
2676
2677                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2678
2679                                                 }
2680                                         }
2681
2682                                         if (!got_some) {
2683                                                 delete before;
2684                                         }
2685                                 }
2686                         }
2687                 }
2688         }
2689
2690         if (in_command) {
2691                 selection->set (new_selection);
2692                 set_mouse_mode (MouseObject);
2693
2694                 commit_reversible_command ();
2695         }
2696 }
2697
2698 void
2699 Editor::separate_region_from_selection ()
2700 {
2701         /* preferentially use *all* ranges in the time selection if we're in range mode
2702            to allow discontiguous operation, since get_edit_op_range() currently
2703            returns a single range.
2704         */
2705         if (mouse_mode == MouseRange && !selection->time.empty()) {
2706
2707                 separate_regions_between (selection->time);
2708
2709         } else {
2710
2711                 nframes64_t start;
2712                 nframes64_t end;
2713
2714                 if (get_edit_op_range (start, end)) {
2715
2716                         AudioRange ar (start, end, 1);
2717                         TimeSelection ts;
2718                         ts.push_back (ar);
2719
2720                         /* force track selection */
2721
2722                         ensure_entered_region_selected ();
2723
2724                         separate_regions_between (ts);
2725                 }
2726         }
2727 }
2728
2729 void
2730 Editor::separate_regions_using_location (Location& loc)
2731 {
2732         if (loc.is_mark()) {
2733                 return;
2734         }
2735
2736         AudioRange ar (loc.start(), loc.end(), 1);
2737         TimeSelection ts;
2738
2739         ts.push_back (ar);
2740
2741         separate_regions_between (ts);
2742 }
2743
2744 void
2745 Editor::crop_region_to_selection ()
2746 {
2747         ensure_entered_region_selected (true);
2748
2749         if (!selection->time.empty()) {
2750
2751                 crop_region_to (selection->time.start(), selection->time.end_frame());
2752
2753         } else {
2754
2755                 nframes64_t start;
2756                 nframes64_t end;
2757
2758                 if (get_edit_op_range (start, end)) {
2759                         crop_region_to (start, end);
2760                 }
2761         }
2762
2763 }
2764
2765 void
2766 Editor::crop_region_to (nframes_t start, nframes_t end)
2767 {
2768         vector<boost::shared_ptr<Playlist> > playlists;
2769         boost::shared_ptr<Playlist> playlist;
2770         TrackSelection* ts;
2771
2772         if (selection->tracks.empty()) {
2773                 ts = &track_views;
2774         } else {
2775                 sort_track_selection ();
2776                 ts = &selection->tracks;
2777         }
2778
2779         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2780
2781                 RouteTimeAxisView* rtv;
2782
2783                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2784
2785                         boost::shared_ptr<Track> t = rtv->track();
2786
2787                         if (t != 0 && ! t->diskstream()->destructive()) {
2788
2789                                 if ((playlist = rtv->playlist()) != 0) {
2790                                         playlists.push_back (playlist);
2791                                 }
2792                         }
2793                 }
2794         }
2795
2796         if (playlists.empty()) {
2797                 return;
2798         }
2799
2800         nframes_t the_start;
2801         nframes_t the_end;
2802         nframes_t cnt;
2803
2804         begin_reversible_command (_("trim to selection"));
2805
2806         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2807
2808                 boost::shared_ptr<Region> region;
2809
2810                 the_start = start;
2811
2812                 if ((region = (*i)->top_region_at(the_start)) == 0) {
2813                         continue;
2814                 }
2815
2816                 /* now adjust lengths to that we do the right thing
2817                    if the selection extends beyond the region
2818                 */
2819
2820                 the_start = max (the_start, region->position());
2821                 if (max_frames - the_start < region->length()) {
2822                         the_end = the_start + region->length() - 1;
2823                 } else {
2824                         the_end = max_frames;
2825                 }
2826                 the_end = min (end, the_end);
2827                 cnt = the_end - the_start + 1;
2828
2829                 XMLNode &before = (*i)->get_state();
2830                 region->trim_to (the_start, cnt, this);
2831                 XMLNode &after = (*i)->get_state();
2832                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
2833         }
2834
2835         commit_reversible_command ();
2836 }
2837
2838 void
2839 Editor::region_fill_track ()
2840 {
2841         nframes_t end;
2842
2843         if (!session || selection->regions.empty()) {
2844                 return;
2845         }
2846
2847         end = session->current_end_frame ();
2848
2849         begin_reversible_command (_("region fill"));
2850
2851         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2852
2853                 boost::shared_ptr<Region> region ((*i)->region());
2854
2855                 // FIXME
2856                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
2857                 assert(ar);
2858
2859                 boost::shared_ptr<Playlist> pl = region->playlist();
2860
2861                 if (end <= region->last_frame()) {
2862                         return;
2863                 }
2864
2865                 double times = (double) (end - region->last_frame()) / (double) region->length();
2866
2867                 if (times == 0) {
2868                         return;
2869                 }
2870
2871                 XMLNode &before = pl->get_state();
2872                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
2873                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
2874         }
2875
2876         commit_reversible_command ();
2877 }
2878
2879 void
2880 Editor::region_fill_selection ()
2881 {
2882         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
2883                 return;
2884         }
2885
2886         if (selection->time.empty()) {
2887                 return;
2888         }
2889
2890
2891         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2892
2893         if (selected->count_selected_rows() != 1) {
2894                 return;
2895         }
2896
2897         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
2898         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
2899
2900         nframes_t start = selection->time[clicked_selection].start;
2901         nframes_t end = selection->time[clicked_selection].end;
2902
2903         boost::shared_ptr<Playlist> playlist;
2904
2905         if (selection->tracks.empty()) {
2906                 return;
2907         }
2908
2909         nframes_t selection_length = end - start;
2910         float times = (float)selection_length / region->length();
2911
2912         begin_reversible_command (_("fill selection"));
2913
2914         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2915
2916                 if ((playlist = (*i)->playlist()) == 0) {
2917                         continue;
2918                 }
2919
2920                 XMLNode &before = playlist->get_state();
2921                 playlist->add_region (RegionFactory::create (region), start, times);
2922                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2923         }
2924
2925         commit_reversible_command ();
2926 }
2927
2928 void
2929 Editor::set_region_sync_from_edit_point ()
2930 {
2931         nframes64_t where = get_preferred_edit_position ();
2932         ensure_entered_region_selected (true);
2933         set_sync_point (where, selection->regions);
2934 }
2935
2936 void
2937 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
2938 {
2939         bool in_command = false;
2940
2941         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
2942
2943                 if (!(*r)->region()->covers (where)) {
2944                         continue;
2945                 }
2946
2947                 boost::shared_ptr<Region> region ((*r)->region());
2948
2949                 if (!in_command) {
2950                         begin_reversible_command (_("set sync point"));
2951                         in_command = true;
2952                 }
2953
2954                 XMLNode &before = region->playlist()->get_state();
2955                 region->set_sync_position (get_preferred_edit_position());
2956                 XMLNode &after = region->playlist()->get_state();
2957                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
2958         }
2959
2960         if (in_command) {
2961                 commit_reversible_command ();
2962         }
2963 }
2964
2965 /** Remove the sync positions of the selection */
2966 void
2967 Editor::remove_region_sync ()
2968 {
2969         begin_reversible_command (_("remove sync"));
2970
2971         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2972                 boost::shared_ptr<Region> r = (*i)->region();
2973                 XMLNode &before = r->playlist()->get_state();
2974                 r->clear_sync_position ();
2975                 XMLNode &after = r->playlist()->get_state();
2976                 session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
2977         }
2978
2979         commit_reversible_command ();
2980 }
2981
2982 void
2983 Editor::naturalize ()
2984 {
2985         if (selection->regions.empty()) {
2986                 return;
2987         }
2988         begin_reversible_command (_("naturalize"));
2989         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2990                 XMLNode &before = (*i)->region()->get_state();
2991                 (*i)->region()->move_to_natural_position (this);
2992                 XMLNode &after = (*i)->region()->get_state();
2993                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
2994         }
2995         commit_reversible_command ();
2996 }
2997
2998 void
2999 Editor::align (RegionPoint what)
3000 {
3001         ensure_entered_region_selected ();
3002
3003         nframes64_t where = get_preferred_edit_position();
3004
3005         if (!selection->regions.empty()) {
3006                 align_selection (what, where, selection->regions);
3007         } else {
3008
3009                 RegionSelection rs;
3010                 rs = get_regions_at (where, selection->tracks);
3011                 align_selection (what, where, rs);
3012         }
3013 }
3014
3015 void
3016 Editor::align_relative (RegionPoint what)
3017 {
3018         nframes64_t where = get_preferred_edit_position();
3019
3020         if (!selection->regions.empty()) {
3021                 align_selection_relative (what, where, selection->regions);
3022         } else {
3023
3024                 RegionSelection rs;
3025                 rs = get_regions_at (where, selection->tracks);
3026                 align_selection_relative (what, where, rs);
3027         }
3028 }
3029
3030 struct RegionSortByTime {
3031     bool operator() (const RegionView* a, const RegionView* b) {
3032             return a->region()->position() < b->region()->position();
3033     }
3034 };
3035
3036 void
3037 Editor::align_selection_relative (RegionPoint point, nframes_t position, const RegionSelection& rs)
3038 {
3039         if (rs.empty()) {
3040                 return;
3041         }
3042
3043         nframes_t distance;
3044         nframes_t pos = 0;
3045         int dir;
3046
3047         list<RegionView*> sorted;
3048         rs.by_position (sorted);
3049         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3050
3051         switch (point) {
3052         case Start:
3053                 pos = position;
3054                 if (position > r->position()) {
3055                         distance = position - r->position();
3056                         dir = 1;
3057                 } else {
3058                         distance = r->position() - position;
3059                         dir = -1;
3060                 }
3061                 break;
3062
3063         case End:
3064                 if (position > r->last_frame()) {
3065                         distance = position - r->last_frame();
3066                         pos = r->position() + distance;
3067                         dir = 1;
3068                 } else {
3069                         distance = r->last_frame() - position;
3070                         pos = r->position() - distance;
3071                         dir = -1;
3072                 }
3073                 break;
3074
3075         case SyncPoint:
3076                 pos = r->adjust_to_sync (position);
3077                 if (pos > r->position()) {
3078                         distance = pos - r->position();
3079                         dir = 1;
3080                 } else {
3081                         distance = r->position() - pos;
3082                         dir = -1;
3083                 }
3084                 break;
3085         }
3086
3087         if (pos == r->position()) {
3088                 return;
3089         }
3090
3091         begin_reversible_command (_("align selection (relative)"));
3092
3093         /* move first one specially */
3094
3095         XMLNode &before = r->playlist()->get_state();
3096         r->set_position (pos, this);
3097         XMLNode &after = r->playlist()->get_state();
3098         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3099
3100         /* move rest by the same amount */
3101
3102         RegionSelection::const_iterator i = rs.begin();
3103         ++i;
3104
3105         for (; i != rs.end(); ++i) {
3106
3107                 boost::shared_ptr<Region> region ((*i)->region());
3108
3109                 XMLNode &before = region->playlist()->get_state();
3110
3111                 if (dir > 0) {
3112                         region->set_position (region->position() + distance, this);
3113                 } else {
3114                         region->set_position (region->position() - distance, this);
3115                 }
3116
3117                 XMLNode &after = region->playlist()->get_state();
3118                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3119
3120         }
3121
3122         commit_reversible_command ();
3123 }
3124
3125 void
3126 Editor::align_selection (RegionPoint point, nframes_t position, const RegionSelection& rs)
3127 {
3128         if (rs.empty()) {
3129                 return;
3130         }
3131
3132         begin_reversible_command (_("align selection"));
3133
3134         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3135                 align_region_internal ((*i)->region(), point, position);
3136         }
3137
3138         commit_reversible_command ();
3139 }
3140
3141 void
3142 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes_t position)
3143 {
3144         begin_reversible_command (_("align region"));
3145         align_region_internal (region, point, position);
3146         commit_reversible_command ();
3147 }
3148
3149 void
3150 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes_t position)
3151 {
3152         XMLNode &before = region->playlist()->get_state();
3153
3154         switch (point) {
3155         case SyncPoint:
3156                 region->set_position (region->adjust_to_sync (position), this);
3157                 break;
3158
3159         case End:
3160                 if (position > region->length()) {
3161                         region->set_position (position - region->length(), this);
3162                 }
3163                 break;
3164
3165         case Start:
3166                 region->set_position (position, this);
3167                 break;
3168         }
3169
3170         XMLNode &after = region->playlist()->get_state();
3171         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3172 }
3173
3174 /** Trim the end of the selected regions to the position of the edit cursor */
3175 void
3176 Editor::trim_region_to_loop ()
3177 {
3178         Location* loc = session->locations()->auto_loop_location();
3179         if (!loc) {
3180                 return;
3181         }
3182         trim_region_to_location (*loc, _("trim to loop"));
3183 }
3184
3185 void
3186 Editor::trim_region_to_punch ()
3187 {
3188         Location* loc = session->locations()->auto_punch_location();
3189         if (!loc) {
3190                 return;
3191         }
3192         trim_region_to_location (*loc, _("trim to punch"));
3193 }
3194 void
3195 Editor::trim_region_to_location (const Location& loc, const char* str)
3196 {
3197         ExclusiveRegionSelection ers (*this, entered_regionview);
3198
3199         RegionSelection& rs (get_regions_for_action ());
3200
3201         begin_reversible_command (str);
3202
3203         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3204                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3205
3206                 if (!arv) {
3207                         continue;
3208                 }
3209
3210                 /* require region to span proposed trim */
3211
3212                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3213                 case OverlapInternal:
3214                         break;
3215                 default:
3216                         continue;
3217                 }
3218
3219                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3220
3221                 if (!atav) {
3222                         return;
3223                 }
3224
3225                 float speed = 1.0;
3226                 nframes_t start;
3227                 nframes_t end;
3228
3229                 if (atav->get_diskstream() != 0) {
3230                         speed = atav->get_diskstream()->speed();
3231                 }
3232
3233                 start = session_frame_to_track_frame (loc.start(), speed);
3234                 end = session_frame_to_track_frame (loc.end(), speed);
3235
3236                 XMLNode &before = arv->region()->playlist()->get_state();
3237                 arv->region()->trim_to (start, (end - start), this);
3238                 XMLNode &after = arv->region()->playlist()->get_state();
3239                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3240         }
3241
3242         commit_reversible_command ();
3243 }
3244
3245 void
3246 Editor::trim_region_to_edit_point ()
3247 {
3248         ExclusiveRegionSelection ers (*this, entered_regionview);
3249
3250         RegionSelection& rs (get_regions_for_action ());
3251         nframes64_t where = get_preferred_edit_position();
3252
3253         begin_reversible_command (_("trim region start to edit point"));
3254
3255         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3256                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3257
3258                 if (!arv) {
3259                         continue;
3260                 }
3261
3262                 /* require region to cover trim */
3263
3264                 if (!arv->region()->covers (where)) {
3265                         continue;
3266                 }
3267
3268                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3269
3270                 if (!atav) {
3271                         return;
3272                 }
3273
3274                 float speed = 1.0;
3275
3276                 if (atav->get_diskstream() != 0) {
3277                         speed = atav->get_diskstream()->speed();
3278                 }
3279
3280                 XMLNode &before = arv->region()->playlist()->get_state();
3281                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3282                 XMLNode &after = arv->region()->playlist()->get_state();
3283                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3284         }
3285
3286         commit_reversible_command ();
3287 }
3288
3289 void
3290 Editor::trim_region_from_edit_point ()
3291 {
3292         ExclusiveRegionSelection ers (*this, entered_regionview);
3293
3294         RegionSelection& rs (get_regions_for_action ());
3295         nframes64_t where = get_preferred_edit_position();
3296
3297         begin_reversible_command (_("trim region end to edit point"));
3298
3299         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3300                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3301
3302                 if (!arv) {
3303                         continue;
3304                 }
3305
3306                 /* require region to cover trim */
3307
3308                 if (!arv->region()->covers (where)) {
3309                         continue;
3310                 }
3311
3312                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3313
3314                 if (!atav) {
3315                         return;
3316                 }
3317
3318                 float speed = 1.0;
3319
3320                 if (atav->get_diskstream() != 0) {
3321                         speed = atav->get_diskstream()->speed();
3322                 }
3323
3324                 XMLNode &before = arv->region()->playlist()->get_state();
3325                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3326                 XMLNode &after = arv->region()->playlist()->get_state();
3327                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3328         }
3329
3330         commit_reversible_command ();
3331 }
3332
3333 void
3334 Editor::unfreeze_route ()
3335 {
3336         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3337                 return;
3338         }
3339
3340         clicked_routeview->audio_track()->unfreeze ();
3341 }
3342
3343 void*
3344 Editor::_freeze_thread (void* arg)
3345 {
3346         PBD::ThreadCreated (pthread_self(), X_("Freeze"));
3347         return static_cast<Editor*>(arg)->freeze_thread ();
3348 }
3349
3350 void*
3351 Editor::freeze_thread ()
3352 {
3353         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3354         return 0;
3355 }
3356
3357 gint
3358 Editor::freeze_progress_timeout (void *arg)
3359 {
3360         interthread_progress_bar.set_fraction (current_interthread_info->progress/100);
3361         return !(current_interthread_info->done || current_interthread_info->cancel);
3362 }
3363
3364 void
3365 Editor::freeze_route ()
3366 {
3367         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3368                 return;
3369         }
3370
3371         InterThreadInfo itt;
3372
3373         if (interthread_progress_window == 0) {
3374                 build_interthread_progress_window ();
3375         }
3376
3377         WindowTitle title(Glib::get_application_name());
3378         title += _("Freeze");
3379         interthread_progress_window->set_title (title.get_string());
3380         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3381         interthread_progress_window->show_all ();
3382         interthread_progress_bar.set_fraction (0.0f);
3383         interthread_progress_label.set_text ("");
3384         interthread_cancel_label.set_text (_("Cancel Freeze"));
3385         current_interthread_info = &itt;
3386
3387         interthread_progress_connection =
3388           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3389
3390         itt.done = false;
3391         itt.cancel = false;
3392         itt.progress = 0.0f;
3393
3394         pthread_attr_t attr;
3395         pthread_attr_init(&attr);
3396         pthread_attr_setstacksize(&attr, 500000);
3397
3398         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3399
3400         pthread_attr_destroy(&attr);
3401
3402         track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3403
3404         while (!itt.done && !itt.cancel) {
3405                 gtk_main_iteration ();
3406         }
3407
3408         interthread_progress_connection.disconnect ();
3409         interthread_progress_window->hide_all ();
3410         current_interthread_info = 0;
3411         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
3412 }
3413
3414 void
3415 Editor::bounce_range_selection ()
3416 {
3417         if (selection->time.empty()) {
3418                 return;
3419         }
3420
3421         TrackSelection views = selection->tracks;
3422
3423         nframes_t start = selection->time[clicked_selection].start;
3424         nframes_t end = selection->time[clicked_selection].end;
3425         nframes_t cnt = end - start + 1;
3426
3427         begin_reversible_command (_("bounce range"));
3428
3429         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3430
3431                 RouteTimeAxisView* rtv;
3432
3433                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3434                         continue;
3435                 }
3436
3437                 boost::shared_ptr<Playlist> playlist;
3438
3439                 if ((playlist = rtv->playlist()) == 0) {
3440                         return;
3441                 }
3442
3443                 InterThreadInfo itt;
3444
3445                 itt.done = false;
3446                 itt.cancel = false;
3447                 itt.progress = false;
3448
3449                 XMLNode &before = playlist->get_state();
3450                 rtv->track()->bounce_range (start, cnt, itt);
3451                 XMLNode &after = playlist->get_state();
3452                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3453         }
3454
3455         commit_reversible_command ();
3456 }
3457
3458 /** Cut selected regions, automation points or a time range */
3459 void
3460 Editor::cut ()
3461 {
3462         cut_copy (Cut);
3463 }
3464
3465 /** Copy selected regions, automation points or a time range */
3466 void
3467 Editor::copy ()
3468 {
3469         cut_copy (Copy);
3470 }
3471
3472
3473 /** @return true if a Cut, Copy or Clear is possible */
3474 bool
3475 Editor::can_cut_copy () const
3476 {
3477         switch (current_mouse_mode()) {
3478
3479         case MouseObject:
3480                 if (!selection->regions.empty() || !selection->points.empty()) {
3481                         return true;
3482                 }
3483                 break;
3484
3485         case MouseRange:
3486                 if (!selection->time.empty()) {
3487                         return true;
3488                 }
3489                 break;
3490
3491         default:
3492                 break;
3493         }
3494
3495         return false;
3496 }
3497
3498
3499 /** Cut, copy or clear selected regions, automation points or a time range.
3500  * @param op Operation (Cut, Copy or Clear)
3501  */
3502 void
3503 Editor::cut_copy (CutCopyOp op)
3504 {
3505         /* only cancel selection if cut/copy is successful.*/
3506
3507         string opname;
3508
3509         switch (op) {
3510         case Cut:
3511                 opname = _("cut");
3512                 break;
3513         case Copy:
3514                 opname = _("copy");
3515                 break;
3516         case Clear:
3517                 opname = _("clear");
3518                 break;
3519         }
3520
3521         cut_buffer->clear ();
3522
3523         if (entered_marker) {
3524
3525                 /* cut/delete op while pointing at a marker */
3526
3527                 bool ignored;
3528                 Location* loc = find_location_from_marker (entered_marker, ignored);
3529
3530                 if (session && loc) {
3531                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3532                 }
3533
3534                 return;
3535         }
3536
3537         switch (current_mouse_mode()) {
3538         case MouseObject:
3539                 cerr << "cutting in object mode\n";
3540                 if (!selection->regions.empty() || !selection->points.empty()) {
3541
3542                         begin_reversible_command (opname + _(" objects"));
3543
3544                         if (!selection->regions.empty()) {
3545                                 cerr << "have regions to cut" << endl;
3546                                 cut_copy_regions (op);
3547
3548                                 if (op == Cut) {
3549                                         selection->clear_regions ();
3550                                 }
3551                         }
3552
3553                         if (!selection->points.empty()) {
3554                                 cut_copy_points (op);
3555
3556                                 if (op == Cut) {
3557                                         selection->clear_points ();
3558                                 }
3559                         }
3560
3561                         commit_reversible_command ();
3562                         break; // terminate case statement here
3563                 }
3564                 cerr << "nope, now cutting time range" << endl;
3565                 if (!selection->time.empty()) {
3566                         /* don't cause suprises */
3567                         break;
3568                 }
3569                 // fall thru if there was nothing selected
3570
3571         case MouseRange:
3572                 if (selection->time.empty()) {
3573                         nframes64_t start, end;
3574                         cerr << "no time selection, get edit op range" << endl;
3575                         if (!get_edit_op_range (start, end)) {
3576                                 cerr << "no edit op range" << endl;
3577                                 return;
3578                         }
3579                         selection->set ((TimeAxisView*) 0, start, end);
3580                 }
3581
3582                 begin_reversible_command (opname + _(" range"));
3583                 cut_copy_ranges (op);
3584                 commit_reversible_command ();
3585
3586                 if (op == Cut) {
3587                         selection->clear_time ();
3588                 }
3589
3590                 break;
3591
3592         default:
3593                 break;
3594         }
3595 }
3596
3597 /** Cut, copy or clear selected automation points.
3598  * @param op Operation (Cut, Copy or Clear)
3599  */
3600 void
3601 Editor::cut_copy_points (CutCopyOp op)
3602 {
3603         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3604
3605                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3606
3607                 if (atv) {
3608                         atv->cut_copy_clear_objects (selection->points, op);
3609                 }
3610         }
3611 }
3612
3613 struct PlaylistState {
3614     boost::shared_ptr<Playlist> playlist;
3615     XMLNode*  before;
3616 };
3617
3618 struct lt_playlist {
3619     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3620             return a.playlist < b.playlist;
3621     }
3622 };
3623
3624 struct PlaylistMapping {
3625     TimeAxisView* tv;
3626     boost::shared_ptr<Playlist> pl;
3627
3628     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3629 };
3630
3631
3632 /** Cut, copy or clear selected regions.
3633  * @param op Operation (Cut, Copy or Clear)
3634  */
3635 void
3636 Editor::cut_copy_regions (CutCopyOp op)
3637 {
3638         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3639            a map when we want ordered access to both elements. i think.
3640         */
3641
3642         vector<PlaylistMapping> pmap;
3643
3644         nframes_t first_position = max_frames;
3645
3646         set<PlaylistState, lt_playlist> freezelist;
3647         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3648
3649         /* get ordering correct before we cut/copy */
3650
3651         selection->regions.sort_by_position_and_track ();
3652
3653         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
3654
3655                 first_position = min ((*x)->region()->position(), first_position);
3656
3657                 if (op == Cut || op == Clear) {
3658                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
3659
3660                         if (pl) {
3661
3662                                 PlaylistState before;
3663                                 before.playlist = pl;
3664                                 before.before = &pl->get_state();
3665
3666                                 insert_result = freezelist.insert (before);
3667
3668                                 if (insert_result.second) {
3669                                         pl->freeze ();
3670                                 }
3671                         }
3672                 }
3673
3674                 TimeAxisView* tv = &(*x)->get_trackview();
3675                 vector<PlaylistMapping>::iterator z;
3676
3677                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3678                         if ((*z).tv == tv) {
3679                                 break;
3680                         }
3681                 }
3682
3683                 if (z == pmap.end()) {
3684                         pmap.push_back (PlaylistMapping (tv));
3685                 }
3686         }
3687
3688         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ) {
3689
3690                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
3691
3692                 if (!pl) {
3693                         /* impossible, but this handles it for the future */
3694                         continue;
3695                 }
3696
3697                 TimeAxisView& tv = (*x)->get_trackview();
3698                 boost::shared_ptr<Playlist> npl;
3699                 RegionSelection::iterator tmp;
3700
3701                 tmp = x;
3702                 ++tmp;
3703
3704                 vector<PlaylistMapping>::iterator z;
3705
3706                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3707                         if ((*z).tv == &tv) {
3708                                 break;
3709                         }
3710                 }
3711
3712                 assert (z != pmap.end());
3713
3714                 if (!(*z).pl) {
3715                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
3716                         npl->freeze();
3717                         (*z).pl = npl;
3718                 } else {
3719                         npl = (*z).pl;
3720                 }
3721
3722                 boost::shared_ptr<Region> r = (*x)->region();
3723                 boost::shared_ptr<Region> _xx;
3724
3725                 assert (r != 0);
3726
3727                 switch (op) {
3728                 case Cut:
3729                         _xx = RegionFactory::create (r);
3730                         npl->add_region (_xx, r->position() - first_position);
3731                         pl->remove_region (r);
3732                         break;
3733
3734                 case Copy:
3735                         /* copy region before adding, so we're not putting same object into two different playlists */
3736                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
3737                         break;
3738
3739                 case Clear:
3740                         pl->remove_region (r);
3741                         break;
3742                 }
3743
3744                 x = tmp;
3745         }
3746
3747         list<boost::shared_ptr<Playlist> > foo;
3748
3749         /* the pmap is in the same order as the tracks in which selected regions occured */
3750
3751         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3752                 (*i).pl->thaw();
3753                 foo.push_back ((*i).pl);
3754         }
3755
3756
3757         if (!foo.empty()) {
3758                 cut_buffer->set (foo);
3759         }
3760
3761         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3762                 (*pl).playlist->thaw ();
3763                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
3764         }
3765 }
3766
3767 void
3768 Editor::cut_copy_ranges (CutCopyOp op)
3769 {
3770         TrackSelection* ts;
3771
3772         if (selection->tracks.empty()) {
3773                 ts = &track_views;
3774         } else {
3775                 ts = &selection->tracks;
3776         }
3777
3778         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3779                 (*i)->cut_copy_clear (*selection, op);
3780         }
3781 }
3782
3783 void
3784 Editor::paste (float times)
3785 {
3786         paste_internal (get_preferred_edit_position(), times);
3787 }
3788
3789 void
3790 Editor::mouse_paste ()
3791 {
3792         nframes64_t where;
3793         bool ignored;
3794
3795         if (!mouse_frame (where, ignored)) {
3796                 return;
3797         }
3798
3799         snap_to (where);
3800         paste_internal (where, 1);
3801 }
3802
3803 void
3804 Editor::paste_internal (nframes_t position, float times)
3805 {
3806         bool commit = false;
3807
3808         if (cut_buffer->empty()) {
3809                 return;
3810         }
3811
3812         if (position == max_frames) {
3813                 position = get_preferred_edit_position();
3814         }
3815
3816         begin_reversible_command (_("paste"));
3817
3818         TrackSelection ts;
3819         TrackSelection::iterator i;
3820         size_t nth;
3821
3822         /* get everything in the correct order */
3823
3824
3825         if (!selection->tracks.empty()) {
3826                 sort_track_selection ();
3827                 ts = selection->tracks;
3828         } else if (entered_track) {
3829                 ts.push_back (entered_track);
3830         }
3831
3832         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
3833
3834                 /* undo/redo is handled by individual tracks */
3835
3836                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
3837                         commit = true;
3838                 }
3839         }
3840
3841         if (commit) {
3842                 commit_reversible_command ();
3843         }
3844 }
3845
3846 void
3847 Editor::paste_named_selection (float times)
3848 {
3849         TrackSelection::iterator t;
3850
3851         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
3852
3853         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
3854                 return;
3855         }
3856
3857         TreeModel::iterator i = selected->get_selected();
3858         NamedSelection* ns = (*i)[named_selection_columns.selection];
3859
3860         list<boost::shared_ptr<Playlist> >::iterator chunk;
3861         list<boost::shared_ptr<Playlist> >::iterator tmp;
3862
3863         chunk = ns->playlists.begin();
3864
3865         begin_reversible_command (_("paste chunk"));
3866
3867         sort_track_selection ();
3868
3869         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
3870
3871                 RouteTimeAxisView* rtv;
3872                 boost::shared_ptr<Playlist> pl;
3873                 boost::shared_ptr<AudioPlaylist> apl;
3874
3875                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*t)) == 0) {
3876                         continue;
3877                 }
3878
3879                 if ((pl = rtv->playlist()) == 0) {
3880                         continue;
3881                 }
3882
3883                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
3884                         continue;
3885                 }
3886
3887                 tmp = chunk;
3888                 ++tmp;
3889
3890                 XMLNode &before = apl->get_state();
3891                 apl->paste (*chunk, get_preferred_edit_position(), times);
3892                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
3893
3894                 if (tmp != ns->playlists.end()) {
3895                         chunk = tmp;
3896                 }
3897         }
3898
3899         commit_reversible_command();
3900 }
3901
3902 void
3903 Editor::duplicate_some_regions (RegionSelection& regions, float times)
3904 {
3905         boost::shared_ptr<Playlist> playlist;
3906         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
3907         RegionSelection foo;
3908
3909         begin_reversible_command (_("duplicate region"));
3910
3911         selection->clear_regions ();
3912
3913         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
3914
3915                 boost::shared_ptr<Region> r ((*i)->region());
3916
3917                 TimeAxisView& tv = (*i)->get_time_axis_view();
3918                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
3919                 latest_regionviews.clear ();
3920                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
3921
3922                 playlist = (*i)->region()->playlist();
3923                 XMLNode &before = playlist->get_state();
3924                 playlist->duplicate (r, r->last_frame(), times);
3925                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3926
3927                 c.disconnect ();
3928
3929                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
3930         }
3931
3932         commit_reversible_command ();
3933
3934         if (!foo.empty()) {
3935                 selection->set (foo);
3936         }
3937 }
3938
3939 void
3940 Editor::duplicate_selection (float times)
3941 {
3942         if (selection->time.empty() || selection->tracks.empty()) {
3943                 return;
3944         }
3945
3946         boost::shared_ptr<Playlist> playlist;
3947         vector<boost::shared_ptr<AudioRegion> > new_regions;
3948         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
3949
3950         create_region_from_selection (new_regions);
3951
3952         if (new_regions.empty()) {
3953                 return;
3954         }
3955
3956         begin_reversible_command (_("duplicate selection"));
3957
3958         ri = new_regions.begin();
3959
3960         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3961                 if ((playlist = (*i)->playlist()) == 0) {
3962                         continue;
3963                 }
3964                 XMLNode &before = playlist->get_state();
3965                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
3966                 XMLNode &after = playlist->get_state();
3967                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
3968
3969                 ++ri;
3970                 if (ri == new_regions.end()) {
3971                         --ri;
3972                 }
3973         }
3974
3975         commit_reversible_command ();
3976 }
3977
3978 void
3979 Editor::reset_point_selection ()
3980 {
3981         /* reset all selected points to the relevant default value */
3982
3983         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3984
3985                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3986
3987                 if (atv) {
3988                         atv->reset_objects (selection->points);
3989                 }
3990         }
3991 }
3992
3993 void
3994 Editor::center_playhead ()
3995 {
3996         float page = canvas_width * frames_per_unit;
3997         center_screen_internal (playhead_cursor->current_frame, page);
3998 }
3999
4000 void
4001 Editor::center_edit_point ()
4002 {
4003         float page = canvas_width * frames_per_unit;
4004         center_screen_internal (get_preferred_edit_position(), page);
4005 }
4006
4007 void
4008 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4009 {
4010         begin_reversible_command (_("clear playlist"));
4011         XMLNode &before = playlist->get_state();
4012         playlist->clear ();
4013         XMLNode &after = playlist->get_state();
4014         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4015         commit_reversible_command ();
4016 }
4017
4018 void
4019 Editor::nudge_track (bool use_edit, bool forwards)
4020 {
4021         boost::shared_ptr<Playlist> playlist;
4022         nframes_t distance;
4023         nframes_t next_distance;
4024         nframes_t start;
4025
4026         if (use_edit) {
4027                 start = get_preferred_edit_position();
4028         } else {
4029                 start = 0;
4030         }
4031
4032         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4033                 return;
4034         }
4035
4036         if (selection->tracks.empty()) {
4037                 return;
4038         }
4039
4040         begin_reversible_command (_("nudge track"));
4041
4042         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4043
4044                 if ((playlist = (*i)->playlist()) == 0) {
4045                         continue;
4046                 }
4047
4048                 XMLNode &before = playlist->get_state();
4049                 playlist->nudge_after (start, distance, forwards);
4050                 XMLNode &after = playlist->get_state();
4051                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4052         }
4053
4054         commit_reversible_command ();
4055 }
4056
4057 void
4058 Editor::remove_last_capture ()
4059 {
4060         vector<string> choices;
4061         string prompt;
4062
4063         if (!session) {
4064                 return;
4065         }
4066
4067         if (Config->get_verify_remove_last_capture()) {
4068                 prompt  = _("Do you really want to destroy the last capture?"
4069                             "\n(This is destructive and cannot be undone)");
4070
4071                 choices.push_back (_("No, do nothing."));
4072                 choices.push_back (_("Yes, destroy it."));
4073
4074                 Gtkmm2ext::Choice prompter (prompt, choices);
4075
4076                 if (prompter.run () == 1) {
4077                         session->remove_last_capture ();
4078                 }
4079
4080         } else {
4081                 session->remove_last_capture();
4082         }
4083 }
4084
4085 void
4086 Editor::normalize_region ()
4087 {
4088         if (!session) {
4089                 return;
4090         }
4091
4092         if (selection->regions.empty()) {
4093                 return;
4094         }
4095
4096         begin_reversible_command (_("normalize"));
4097
4098         track_canvas.get_window()->set_cursor (*wait_cursor);
4099         gdk_flush ();
4100
4101         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
4102                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4103                 if (!arv)
4104                         continue;
4105                 XMLNode &before = arv->region()->get_state();
4106                 arv->audio_region()->normalize_to (0.0f);
4107                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4108         }
4109
4110         commit_reversible_command ();
4111         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
4112 }
4113
4114
4115 void
4116 Editor::denormalize_region ()
4117 {
4118         if (!session) {
4119                 return;
4120         }
4121
4122         if (selection->regions.empty()) {
4123                 return;
4124         }
4125
4126         begin_reversible_command ("denormalize");
4127
4128         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
4129                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4130                 if (!arv)
4131                         continue;
4132                 XMLNode &before = arv->region()->get_state();
4133                 arv->audio_region()->set_scale_amplitude (1.0f);
4134                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4135         }
4136
4137         commit_reversible_command ();
4138 }
4139
4140
4141 void
4142 Editor::reverse_region ()
4143 {
4144         if (!session) {
4145                 return;
4146         }
4147
4148         Reverse rev (*session);
4149         apply_filter (rev, _("reverse regions"));
4150 }
4151
4152
4153 void
4154 Editor::quantize_region ()
4155 {
4156         if (!session) {
4157                 return;
4158         }
4159
4160         // FIXME: varying meter?
4161         Quantize quant (*session, snap_length_beats(0));
4162         apply_filter (quant, _("quantize regions"));
4163 }
4164
4165 void
4166 Editor::apply_filter (Filter& filter, string command)
4167 {
4168         if (selection->regions.empty()) {
4169                 return;
4170         }
4171
4172         begin_reversible_command (command);
4173
4174         track_canvas.get_window()->set_cursor (*wait_cursor);
4175         gdk_flush ();
4176
4177         /* this is ugly. */
4178         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ) {
4179                 RegionSelection::iterator tmp = r;
4180                 ++tmp;
4181
4182                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*>(*r);
4183                 if (mrv) {
4184                         if (mrv->midi_region()->apply(filter) == 0) {
4185                                 mrv->redisplay_model();
4186                         }
4187                 }
4188
4189                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4190                 if (arv) {
4191                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4192
4193                         if (arv->audio_region()->apply (filter) == 0) {
4194
4195                                 XMLNode &before = playlist->get_state();
4196                                 playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4197                                 XMLNode &after = playlist->get_state();
4198                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4199                         } else {
4200                                 goto out;
4201                         }
4202                 }
4203
4204                 r = tmp;
4205         }
4206
4207         commit_reversible_command ();
4208         selection->regions.clear ();
4209
4210   out:
4211         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
4212 }
4213
4214 void
4215 Editor::region_selection_op (void (Region::*pmf)(void))
4216 {
4217         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4218                 Region* region = (*i)->region().get();
4219                 (region->*pmf)();
4220         }
4221 }
4222
4223
4224 void
4225 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4226 {
4227         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4228                 Region* region = (*i)->region().get();
4229                 (region->*pmf)(arg);
4230         }
4231 }
4232
4233 void
4234 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4235 {
4236         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4237                 Region* region = (*i)->region().get();
4238                 (region->*pmf)(yn);
4239         }
4240 }
4241
4242 void
4243 Editor::external_edit_region ()
4244 {
4245         /* more to come */
4246 }
4247
4248 void
4249 Editor::brush (nframes_t pos)
4250 {
4251         RegionSelection sel;
4252         snap_to (pos);
4253
4254         if (selection->regions.empty()) {
4255                 /* XXX get selection from region list */
4256         } else {
4257                 sel = selection->regions;
4258         }
4259
4260         if (sel.empty()) {
4261                 return;
4262         }
4263
4264         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4265                 mouse_brush_insert_region ((*i), pos);
4266         }
4267 }
4268
4269 void
4270 Editor::reset_region_gain_envelopes ()
4271 {
4272         if (!session || selection->regions.empty()) {
4273                 return;
4274         }
4275
4276         session->begin_reversible_command (_("reset region gain"));
4277
4278         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4279                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4280                 if (arv) {
4281                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4282                         XMLNode& before (alist->get_state());
4283
4284                         arv->audio_region()->set_default_envelope ();
4285                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4286                 }
4287         }
4288
4289         session->commit_reversible_command ();
4290 }
4291
4292 void
4293 Editor::toggle_gain_envelope_visibility ()
4294 {
4295         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4296                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4297                 if (arv) {
4298                         arv->set_envelope_visible (!arv->envelope_visible());
4299                 }
4300         }
4301 }
4302
4303 void
4304 Editor::toggle_gain_envelope_active ()
4305 {
4306         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4307                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4308                 if (arv) {
4309                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4310                 }
4311         }
4312 }
4313
4314 void
4315 Editor::toggle_region_lock ()
4316 {
4317         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4318                 (*i)->region()->set_locked (!(*i)->region()->locked());
4319         }
4320 }
4321
4322 void
4323 Editor::toggle_region_mute ()
4324 {
4325         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4326                 (*i)->region()->set_muted (!(*i)->region()->muted());
4327         }
4328 }
4329
4330 void
4331 Editor::toggle_region_opaque ()
4332 {
4333         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4334                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
4335         }
4336 }
4337
4338 void
4339 Editor::set_fade_length (bool in)
4340 {
4341         ExclusiveRegionSelection esr (*this, entered_regionview);
4342
4343         /* we need a region to measure the offset from the start */
4344
4345         RegionView* rv;
4346
4347         if (!selection->regions.empty()) {
4348                 rv = selection->regions.front();
4349         } else if (entered_regionview) {
4350                 rv = entered_regionview;
4351         } else {
4352                 return;
4353         }
4354
4355         nframes64_t pos = get_preferred_edit_position();
4356         nframes_t len;
4357         char* cmd;
4358
4359         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4360                 /* edit point is outside the relevant region */
4361                 return;
4362         }
4363
4364         if (in) {
4365                 if (pos <= rv->region()->position()) {
4366                         /* can't do it */
4367                         return;
4368                 }
4369                 len = pos - rv->region()->position();
4370                 cmd = _("set fade in length");
4371         } else {
4372                 if (pos >= rv->region()->last_frame()) {
4373                         /* can't do it */
4374                         return;
4375                 }
4376                 len = rv->region()->last_frame() - pos;
4377                 cmd = _("set fade out length");
4378         }
4379
4380         begin_reversible_command (cmd);
4381
4382         RegionSelection& rs (get_regions_for_action());
4383
4384         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4385                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4386
4387                 if (!tmp) {
4388                         return;
4389                 }
4390
4391                 boost::shared_ptr<AutomationList> alist;
4392                 if (in) {
4393                         alist = tmp->audio_region()->fade_in();
4394                 } else {
4395                         alist = tmp->audio_region()->fade_out();
4396                 }
4397
4398                 XMLNode &before = alist->get_state();
4399
4400                 if (in) {
4401                         tmp->audio_region()->set_fade_in_length (len);
4402                 } else {
4403                         tmp->audio_region()->set_fade_out_length (len);
4404                 }
4405
4406                 XMLNode &after = alist->get_state();
4407                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4408         }
4409
4410         commit_reversible_command ();
4411 }
4412
4413 void
4414 Editor::toggle_fade_active (bool in)
4415 {
4416         ensure_entered_region_selected (true);
4417
4418         if (selection->regions.empty()) {
4419                 return;
4420         }
4421
4422         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4423         bool have_switch = false;
4424         bool yn;
4425
4426         begin_reversible_command (cmd);
4427
4428         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4429                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4430
4431                 if (!tmp) {
4432                         return;
4433                 }
4434
4435                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4436
4437                 /* make the behaviour consistent across all regions */
4438
4439                 if (!have_switch) {
4440                         if (in) {
4441                                 yn = region->fade_in_active();
4442                         } else {
4443                                 yn = region->fade_out_active();
4444                         }
4445                         have_switch = true;
4446                 }
4447
4448                 XMLNode &before = region->get_state();
4449                 if (in) {
4450                         region->set_fade_in_active (!yn);
4451                 } else {
4452                         region->set_fade_out_active (!yn);
4453                 }
4454                 XMLNode &after = region->get_state();
4455                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4456         }
4457
4458         commit_reversible_command ();
4459 }
4460
4461 void
4462 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4463 {
4464
4465         begin_reversible_command (_("set fade in shape"));
4466
4467         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4468                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4469
4470                 if (!tmp) {
4471                         return;
4472                 }
4473
4474                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
4475                 XMLNode &before = alist->get_state();
4476
4477                 tmp->audio_region()->set_fade_in_shape (shape);
4478
4479                 XMLNode &after = alist->get_state();
4480                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
4481         }
4482
4483         commit_reversible_command ();
4484
4485 }
4486
4487 void
4488 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4489 {
4490         begin_reversible_command (_("set fade out shape"));
4491
4492         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4493                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4494
4495                 if (!tmp) {
4496                         return;
4497                 }
4498
4499                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
4500                 XMLNode &before = alist->get_state();
4501
4502                 tmp->audio_region()->set_fade_out_shape (shape);
4503
4504                 XMLNode &after = alist->get_state();
4505                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
4506         }
4507
4508         commit_reversible_command ();
4509 }
4510
4511 void
4512 Editor::set_fade_in_active (bool yn)
4513 {
4514         begin_reversible_command (_("set fade in active"));
4515
4516         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4517                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4518
4519                 if (!tmp) {
4520                         return;
4521                 }
4522
4523
4524                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4525
4526                 XMLNode &before = ar->get_state();
4527
4528                 ar->set_fade_in_active (yn);
4529
4530                 XMLNode &after = ar->get_state();
4531                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4532         }
4533
4534         commit_reversible_command ();
4535 }
4536
4537 void
4538 Editor::set_fade_out_active (bool yn)
4539 {
4540         begin_reversible_command (_("set fade out active"));
4541
4542         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4543                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4544
4545                 if (!tmp) {
4546                         return;
4547                 }
4548
4549                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4550
4551                 XMLNode &before = ar->get_state();
4552
4553                 ar->set_fade_out_active (yn);
4554
4555                 XMLNode &after = ar->get_state();
4556                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4557         }
4558
4559         commit_reversible_command ();
4560 }
4561
4562
4563 /** Update crossfade visibility after its configuration has been changed */
4564 void
4565 Editor::update_xfade_visibility ()
4566 {
4567         _xfade_visibility = Config->get_xfades_visible ();
4568
4569         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4570                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4571                 if (v) {
4572                         if (_xfade_visibility) {
4573                                 v->show_all_xfades ();
4574                         } else {
4575                                 v->hide_all_xfades ();
4576                         }
4577                 }
4578         }
4579 }
4580
4581 void
4582 Editor::set_edit_point ()
4583 {
4584         nframes64_t where;
4585         bool ignored;
4586
4587         if (!mouse_frame (where, ignored)) {
4588                 return;
4589         }
4590
4591         snap_to (where);
4592
4593         if (selection->markers.empty()) {
4594
4595                 mouse_add_new_marker (where);
4596
4597         } else {
4598                 bool ignored;
4599
4600                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
4601
4602                 if (loc) {
4603                         loc->move_to (where);
4604                 }
4605         }
4606 }
4607
4608 void
4609 Editor::set_playhead_cursor ()
4610 {
4611         if (entered_marker) {
4612                 session->request_locate (entered_marker->position(), session->transport_rolling());
4613         } else {
4614                 nframes64_t where;
4615                 bool ignored;
4616
4617                 if (!mouse_frame (where, ignored)) {
4618                         return;
4619                 }
4620
4621                 snap_to (where);
4622
4623                 if (session) {
4624                         session->request_locate (where, session->transport_rolling());
4625                 }
4626         }
4627 }
4628
4629 void
4630 Editor::split ()
4631 {
4632         ensure_entered_region_selected ();
4633
4634         nframes64_t where = get_preferred_edit_position();
4635
4636         if (!selection->regions.empty()) {
4637
4638                 split_regions_at (where, selection->regions);
4639
4640         } else {
4641
4642                 RegionSelection rs;
4643                 rs = get_regions_at (where, selection->tracks);
4644                 split_regions_at (where, rs);
4645         }
4646 }
4647
4648 void
4649 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
4650 {
4651         if (entered_track && mouse_mode == MouseObject) {
4652                 if (!selection->tracks.empty()) {
4653                         if (!selection->selected (entered_track)) {
4654                                 selection->add (entered_track);
4655                         }
4656                 } else {
4657                         /* there is no selection, but this operation requires/prefers selected objects */
4658
4659                         if (op_really_wants_one_track_if_none_are_selected) {
4660                                 selection->set (entered_track);
4661                         }
4662                 }
4663         }
4664 }
4665
4666 void
4667 Editor::ensure_entered_region_selected (bool op_really_wants_one_region_if_none_are_selected)
4668 {
4669         if (!entered_regionview || mouse_mode != MouseObject) {
4670                 return;
4671         }
4672
4673
4674         /* heuristic:
4675
4676         - if there is no existing selection, don't change it. the operation will thus apply to "all"
4677
4678         - if there is an existing selection, but the entered regionview isn't in it, add it. this
4679         avoids key-mouse ops on unselected regions from interfering with an existing selection,
4680         but also means that the operation will apply to the pointed-at region.
4681         */
4682
4683         if (!selection->regions.empty()) {
4684                 if (!selection->selected (entered_regionview)) {
4685                         selection->add (entered_regionview);
4686                 }
4687         } else {
4688                 /* there is no selection, but this operation requires/prefers selected objects */
4689
4690                 if (op_really_wants_one_region_if_none_are_selected) {
4691                         selection->set (entered_regionview, false);
4692                 }
4693         }
4694 }
4695
4696 void
4697 Editor::trim_region_front ()
4698 {
4699         trim_region (true);
4700 }
4701
4702 void
4703 Editor::trim_region_back ()
4704 {
4705         trim_region (false);
4706 }
4707
4708 void
4709 Editor::trim_region (bool front)
4710 {
4711         ExclusiveRegionSelection ers (*this, entered_regionview);
4712
4713         nframes64_t where = get_preferred_edit_position();
4714         RegionSelection& rs = get_regions_for_action ();
4715
4716         if (rs.empty()) {
4717                 return;
4718         }
4719
4720         begin_reversible_command (front ? _("trim front") : _("trim back"));
4721
4722         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
4723                 if (!(*i)->region()->locked()) {
4724                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
4725                         XMLNode &before = pl->get_state();
4726                         if (front) {
4727                                 (*i)->region()->trim_front (where, this);
4728                         } else {
4729                                 (*i)->region()->trim_end (where, this);
4730                         }
4731                         XMLNode &after = pl->get_state();
4732                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
4733                 }
4734         }
4735
4736         commit_reversible_command ();
4737 }
4738
4739 struct EditorOrderRouteSorter {
4740     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
4741             /* use of ">" forces the correct sort order */
4742             return a->order_key ("editor") < b->order_key ("editor");
4743     }
4744 };
4745
4746 void
4747 Editor::select_next_route()
4748 {
4749         if (selection->tracks.empty()) {
4750                 selection->set (track_views.front());
4751                 return;
4752         }
4753
4754         TimeAxisView* current = selection->tracks.front();
4755
4756         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4757                 if (*i == current) {
4758                         ++i;
4759                         if (i != track_views.end()) {
4760                                 selection->set (*i);
4761                         } else {
4762                                 selection->set (*(track_views.begin()));
4763                         }
4764                         break;
4765                 }
4766         }
4767 }
4768
4769 void
4770 Editor::select_prev_route()
4771 {
4772         if (selection->tracks.empty()) {
4773                 selection->set (track_views.front());
4774                 return;
4775         }
4776
4777         TimeAxisView* current = selection->tracks.front();
4778
4779         for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
4780                 if (*i == current) {
4781                         ++i;
4782                         if (i != track_views.rend()) {
4783                                 selection->set (*i);
4784                         } else {
4785                                 selection->set (*(track_views.rbegin()));
4786                         }
4787                         break;
4788                 }
4789         }
4790 }
4791
4792 void
4793 Editor::set_loop_from_selection (bool play)
4794 {
4795         if (session == 0 || selection->time.empty()) {
4796                 return;
4797         }
4798
4799         nframes_t start = selection->time[clicked_selection].start;
4800         nframes_t end = selection->time[clicked_selection].end;
4801
4802         set_loop_range (start, end,  _("set loop range from selection"));
4803
4804         if (play) {
4805                 session->request_play_loop (true);
4806                 session->request_locate (start, true);
4807         }
4808 }
4809
4810 void
4811 Editor::set_loop_from_edit_range (bool play)
4812 {
4813         if (session == 0) {
4814                 return;
4815         }
4816
4817         nframes64_t start;
4818         nframes64_t end;
4819
4820         if (!get_edit_op_range (start, end)) {
4821                 return;
4822         }
4823
4824         set_loop_range (start, end,  _("set loop range from edit range"));
4825
4826         if (play) {
4827                 session->request_play_loop (true);
4828                 session->request_locate (start, true);
4829         }
4830 }
4831
4832 void
4833 Editor::set_loop_from_region (bool play)
4834 {
4835         nframes64_t start = max_frames;
4836         nframes64_t end = 0;
4837
4838         ExclusiveRegionSelection esr (*this, entered_regionview);
4839
4840         if (selection->regions.empty()) {
4841                 info << _("cannot set loop: no region selected") << endmsg;
4842                 return;
4843         }
4844
4845         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4846                 if ((*i)->region()->position() < start) {
4847                         start = (*i)->region()->position();
4848                 }
4849                 if ((*i)->region()->last_frame() + 1 > end) {
4850                         end = (*i)->region()->last_frame() + 1;
4851                 }
4852         }
4853
4854         set_loop_range (start, end, _("set loop range from region"));
4855
4856         if (play) {
4857                 session->request_play_loop (true);
4858                 session->request_locate (start, true);
4859         }
4860 }
4861
4862 void
4863 Editor::set_punch_from_selection ()
4864 {
4865         if (session == 0 || selection->time.empty()) {
4866                 return;
4867         }
4868
4869         nframes_t start = selection->time[clicked_selection].start;
4870         nframes_t end = selection->time[clicked_selection].end;
4871
4872         set_punch_range (start, end,  _("set punch range from selection"));
4873 }
4874
4875 void
4876 Editor::set_punch_from_edit_range ()
4877 {
4878         if (session == 0) {
4879                 return;
4880         }
4881
4882         nframes64_t start;
4883         nframes64_t end;
4884
4885         if (!get_edit_op_range (start, end)) {
4886                 return;
4887         }
4888
4889         set_punch_range (start, end,  _("set punch range from edit range"));
4890 }
4891
4892 void
4893 Editor::set_punch_from_region ()
4894 {
4895         nframes64_t start = max_frames;
4896         nframes64_t end = 0;
4897
4898         ExclusiveRegionSelection esr (*this, entered_regionview);
4899
4900         if (selection->regions.empty()) {
4901                 info << _("cannot set punch: no region selected") << endmsg;
4902                 return;
4903         }
4904
4905         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4906                 if ((*i)->region()->position() < start) {
4907                         start = (*i)->region()->position();
4908                 }
4909                 if ((*i)->region()->last_frame() + 1 > end) {
4910                         end = (*i)->region()->last_frame() + 1;
4911                 }
4912         }
4913
4914         set_punch_range (start, end, _("set punch range from region"));
4915 }
4916
4917 void
4918 Editor::pitch_shift_regions ()
4919 {
4920         ensure_entered_region_selected (true);
4921
4922         if (selection->regions.empty()) {
4923                 return;
4924         }
4925
4926         pitch_shift (selection->regions, 1.2);
4927 }
4928