gtk2_ardour/editor_ops.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #include <unistd.h>
  23
  24 #include <cstdlib>
  25 #include <cmath>
  26 #include <string>
  27 #include <map>
  28 #include <set>
  29
  30 #include "pbd/error.h"
  31 #include "pbd/basename.h"
  32 #include "pbd/pthread_utils.h"
  33 #include "pbd/memento_command.h"
  34 #include "pbd/whitespace.h"
  35
  36 #include <gtkmm2ext/utils.h>
  37 #include <gtkmm2ext/choice.h>
  38 #include <gtkmm2ext/popup.h>
  39
  40 #include "ardour/audioengine.h"
  41 #include "ardour/session.h"
  42 #include "ardour/audioplaylist.h"
  43 #include "ardour/audioregion.h"
  44 #include "ardour/audio_diskstream.h"
  45 #include "ardour/utils.h"
  46 #include "ardour/location.h"
  47 #include "ardour/audio_track.h"
  48 #include "ardour/audioplaylist.h"
  49 #include "ardour/region_factory.h"
  50 #include "ardour/playlist_factory.h"
  51 #include "ardour/reverse.h"
  52 #include "ardour/transient_detector.h"
  53 #include "ardour/dB.h"
  54 #include "ardour/quantize.h"
  55 #include "ardour/strip_silence.h"
  56 #include "ardour/route_group.h"
  57
  58 #include "ardour_ui.h"
  59 #include "editor.h"
  60 #include "time_axis_view.h"
  61 #include "route_time_axis.h"
  62 #include "audio_time_axis.h"
  63 #include "automation_time_axis.h"
  64 #include "streamview.h"
  65 #include "audio_streamview.h"
  66 #include "audio_region_view.h"
  67 #include "midi_region_view.h"
  68 #include "rgb_macros.h"
  69 #include "selection_templates.h"
  70 #include "selection.h"
  71 #include "editing.h"
  72 #include "gtk-custom-hruler.h"
  73 #include "gui_thread.h"
  74 #include "keyboard.h"
  75 #include "utils.h"
  76 #include "editor_drag.h"
  77 #include "strip_silence_dialog.h"
  78 #include "editor_routes.h"
  79 #include "editor_regions.h"
  80 #include "quantize_dialog.h"
  81
  82 #include "i18n.h"
  83
  84 using namespace std;
  85 using namespace ARDOUR;
  86 using namespace PBD;
  87 using namespace sigc;
  88 using namespace Gtk;
  89 using namespace Gtkmm2ext;
  90 using namespace Editing;
  91
  92 /***********************************************************************
  93   Editor operations
  94  ***********************************************************************/
  95
  96 void
  97 Editor::undo (uint32_t n)
  98 {
  99         if (session) {
 100                 session->undo (n);
 101         }
 102 }
 103
 104 void
 105 Editor::redo (uint32_t n)
 106 {
 107         if (session) {
 108                 session->redo (n);
 109         }
 110 }
 111
 112 void
 113 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 114 {
 115         list <boost::shared_ptr<Playlist > > used_playlists;
 116
 117         if (regions.empty()) {
 118                 return;
 119         }
 120
 121         begin_reversible_command (_("split"));
 122
 123         // if splitting a single region, and snap-to is using
 124         // region boundaries, don't pay attention to them
 125
 126         if (regions.size() == 1) {
 127                 switch (_snap_type) {
 128                 case SnapToRegionStart:
 129                 case SnapToRegionSync:
 130                 case SnapToRegionEnd:
 131                         break;
 132                 default:
 133                         snap_to (where);
 134                 }
 135         } else {
 136                 snap_to (where);
 137         }
 138
 139         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 140
 141                 RegionSelection::iterator tmp;
 142
 143                 /* XXX this test needs to be more complicated, to make sure we really
 144                    have something to split.
 145                 */
 146
 147                 if (!(*a)->region()->covers (where)) {
 148                         ++a;
 149                         continue;
 150                 }
 151
 152                 tmp = a;
 153                 ++tmp;
 154
 155                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 156
 157                 if (! pl->frozen()) {
 158                         /* we haven't seen this playlist before */
 159
 160                         /* remember used playlists so we can thaw them later */
 161                         used_playlists.push_back(pl);
 162                         pl->freeze();
 163                 }
 164
 165                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 166                 if (arv) {
 167                         _new_regionviews_show_envelope = arv->envelope_visible();
 168                 }
 169
 170                 if (pl) {
 171                         XMLNode &before = pl->get_state();
 172                         pl->split_region ((*a)->region(), where);
 173                         XMLNode &after = pl->get_state();
 174                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 175                 }
 176
 177                 a = tmp;
 178         }
 179
 180         while (used_playlists.size() > 0) {
 181                 list <boost::shared_ptr<Playlist > >::iterator i = used_playlists.begin();
 182                 (*i)->thaw();
 183                 used_playlists.pop_front();
 184         }
 185
 186         commit_reversible_command ();
 187         _new_regionviews_show_envelope = false;
 188 }
 189
 190 boost::shared_ptr<Region>
 191 Editor::select_region_for_operation (int /*dir*/, TimeAxisView **tv)
 192 {
 193         RegionView* rv;
 194         boost::shared_ptr<Region> region;
 195         nframes64_t start = 0;
 196
 197         if (selection->time.start () == selection->time.end_frame ()) {
 198
 199                 /* no current selection-> is there a selected regionview? */
 200
 201                 if (selection->regions.empty()) {
 202                         return region;
 203                 }
 204
 205         }
 206
 207         if (!selection->regions.empty()) {
 208
 209                 rv = *(selection->regions.begin());
 210                 (*tv) = &rv->get_time_axis_view();
 211                 region = rv->region();
 212
 213         } else if (!selection->tracks.empty()) {
 214
 215                 (*tv) = selection->tracks.front();
 216
 217                 RouteTimeAxisView* rtv;
 218
 219                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 220                         boost::shared_ptr<Playlist> pl;
 221
 222                         if ((pl = rtv->playlist()) == 0) {
 223                                 return region;
 224                         }
 225
 226                         region = pl->top_region_at (start);
 227                 }
 228         }
 229
 230         return region;
 231 }
 232
 233 void
 234 Editor::extend_selection_to_end_of_region (bool next)
 235 {
 236         TimeAxisView *tv;
 237         boost::shared_ptr<Region> region;
 238         nframes64_t start;
 239
 240         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 241                 return;
 242         }
 243
 244         if (region && selection->time.start () == selection->time.end_frame ()) {
 245                 start = region->position();
 246         } else {
 247                 start = selection->time.start ();
 248         }
 249
 250         /* Try to leave the selection with the same route if possible */
 251
 252         if ((tv = selection->time.track) == 0) {
 253                 return;
 254         }
 255
 256         begin_reversible_command (_("extend selection"));
 257         selection->set (tv, start, region->position() + region->length());
 258         commit_reversible_command ();
 259 }
 260
 261 void
 262 Editor::extend_selection_to_start_of_region (bool previous)
 263 {
 264         TimeAxisView *tv;
 265         boost::shared_ptr<Region> region;
 266         nframes64_t end;
 267
 268         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 269                 return;
 270         }
 271
 272         if (region && selection->time.start () == selection->time.end_frame ()) {
 273                 end = region->position() + region->length();
 274         } else {
 275                 end = selection->time.end_frame ();
 276         }
 277
 278         /* Try to leave the selection with the same route if possible */
 279
 280         if ((tv = selection->time.track) == 0) {
 281                 return;
 282         }
 283
 284         begin_reversible_command (_("extend selection"));
 285         selection->set (tv, region->position(), end);
 286         commit_reversible_command ();
 287 }
 288
 289 bool
 290 Editor::nudge_forward_release (GdkEventButton* ev)
 291 {
 292         if (ev->state & Keyboard::PrimaryModifier) {
 293                 nudge_forward (false, true);
 294         } else {
 295                 nudge_forward (false, false);
 296         }
 297         return false;
 298 }
 299
 300 bool
 301 Editor::nudge_backward_release (GdkEventButton* ev)
 302 {
 303         if (ev->state & Keyboard::PrimaryModifier) {
 304                 nudge_backward (false, true);
 305         } else {
 306                 nudge_backward (false, false);
 307         }
 308         return false;
 309 }
 310
 311
 312 void
 313 Editor::nudge_forward (bool next, bool force_playhead)
 314 {
 315         nframes64_t distance;
 316         nframes64_t next_distance;
 317         RegionSelection rs;
 318
 319         get_regions_for_action (rs);
 320
 321         if (!session) return;
 322
 323         if (!force_playhead && !rs.empty()) {
 324
 325                 begin_reversible_command (_("nudge regions forward"));
 326
 327                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 328                         boost::shared_ptr<Region> r ((*i)->region());
 329
 330                         distance = get_nudge_distance (r->position(), next_distance);
 331
 332                         if (next) {
 333                                 distance = next_distance;
 334                         }
 335
 336                         XMLNode &before = r->playlist()->get_state();
 337                         r->set_position (r->position() + distance, this);
 338                         XMLNode &after = r->playlist()->get_state();
 339                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 340                 }
 341
 342                 commit_reversible_command ();
 343
 344
 345         } else if (!force_playhead && !selection->markers.empty()) {
 346
 347                 bool is_start;
 348
 349                 begin_reversible_command (_("nudge location forward"));
 350
 351                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 352
 353                         Location* loc = find_location_from_marker ((*i), is_start);
 354
 355                         if (loc) {
 356
 357                                 XMLNode& before (loc->get_state());
 358
 359                                 if (is_start) {
 360                                         distance = get_nudge_distance (loc->start(), next_distance);
 361                                         if (next) {
 362                                                 distance = next_distance;
 363                                         }
 364                                         if (max_frames - distance > loc->start() + loc->length()) {
 365                                                 loc->set_start (loc->start() + distance);
 366                                         } else {
 367                                                 loc->set_start (max_frames - loc->length());
 368                                         }
 369                                 } else {
 370                                         distance = get_nudge_distance (loc->end(), next_distance);
 371                                         if (next) {
 372                                                 distance = next_distance;
 373                                         }
 374                                         if (max_frames - distance > loc->end()) {
 375                                                 loc->set_end (loc->end() + distance);
 376                                         } else {
 377                                                 loc->set_end (max_frames);
 378                                         }
 379                                 }
 380                                 XMLNode& after (loc->get_state());
 381                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 382                         }
 383                 }
 384
 385                 commit_reversible_command ();
 386
 387         } else {
 388                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 389                 session->request_locate (playhead_cursor->current_frame + distance);
 390         }
 391 }
 392
 393 void
 394 Editor::nudge_backward (bool next, bool force_playhead)
 395 {
 396         nframes64_t distance;
 397         nframes64_t next_distance;
 398         RegionSelection rs;
 399
 400         get_regions_for_action (rs);
 401
 402         if (!session) return;
 403
 404         if (!force_playhead && !rs.empty()) {
 405
 406                 begin_reversible_command (_("nudge regions backward"));
 407
 408                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 409                         boost::shared_ptr<Region> r ((*i)->region());
 410
 411                         distance = get_nudge_distance (r->position(), next_distance);
 412
 413                         if (next) {
 414                                 distance = next_distance;
 415                         }
 416
 417                         XMLNode &before = r->playlist()->get_state();
 418
 419                         if (r->position() > distance) {
 420                                 r->set_position (r->position() - distance, this);
 421                         } else {
 422                                 r->set_position (0, this);
 423                         }
 424                         XMLNode &after = r->playlist()->get_state();
 425                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 426                 }
 427
 428                 commit_reversible_command ();
 429
 430         } else if (!force_playhead && !selection->markers.empty()) {
 431
 432                 bool is_start;
 433
 434                 begin_reversible_command (_("nudge location forward"));
 435
 436                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
 437
 438                         Location* loc = find_location_from_marker ((*i), is_start);
 439
 440                         if (loc) {
 441
 442                                 XMLNode& before (loc->get_state());
 443
 444                                 if (is_start) {
 445                                         distance = get_nudge_distance (loc->start(), next_distance);
 446                                         if (next) {
 447                                                 distance = next_distance;
 448                                         }
 449                                         if (distance < loc->start()) {
 450                                                 loc->set_start (loc->start() - distance);
 451                                         } else {
 452                                                 loc->set_start (0);
 453                                         }
 454                                 } else {
 455                                         distance = get_nudge_distance (loc->end(), next_distance);
 456
 457                                         if (next) {
 458                                                 distance = next_distance;
 459                                         }
 460
 461                                         if (distance < loc->end() - loc->length()) {
 462                                                 loc->set_end (loc->end() - distance);
 463                                         } else {
 464                                                 loc->set_end (loc->length());
 465                                         }
 466                                 }
 467
 468                                 XMLNode& after (loc->get_state());
 469                                 session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 470                         }
 471                 }
 472
 473                 commit_reversible_command ();
 474
 475         } else {
 476
 477                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 478
 479                 if (playhead_cursor->current_frame > distance) {
 480                         session->request_locate (playhead_cursor->current_frame - distance);
 481                 } else {
 482                         session->goto_start();
 483                 }
 484         }
 485 }
 486
 487 void
 488 Editor::nudge_forward_capture_offset ()
 489 {
 490         nframes64_t distance;
 491         RegionSelection rs;
 492
 493         get_regions_for_action (rs);
 494
 495         if (!session) return;
 496
 497         if (!rs.empty()) {
 498
 499                 begin_reversible_command (_("nudge forward"));
 500
 501                 distance = session->worst_output_latency();
 502
 503                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 504                         boost::shared_ptr<Region> r ((*i)->region());
 505
 506                         XMLNode &before = r->playlist()->get_state();
 507                         r->set_position (r->position() + distance, this);
 508                         XMLNode &after = r->playlist()->get_state();
 509                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 510                 }
 511
 512                 commit_reversible_command ();
 513
 514         }
 515 }
 516
 517 void
 518 Editor::nudge_backward_capture_offset ()
 519 {
 520         nframes64_t distance;
 521         RegionSelection rs;
 522
 523         get_regions_for_action (rs);
 524
 525         if (!session) return;
 526
 527         if (!rs.empty()) {
 528
 529                 begin_reversible_command (_("nudge forward"));
 530
 531                 distance = session->worst_output_latency();
 532
 533                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 534                         boost::shared_ptr<Region> r ((*i)->region());
 535
 536                         XMLNode &before = r->playlist()->get_state();
 537
 538                         if (r->position() > distance) {
 539                                 r->set_position (r->position() - distance, this);
 540                         } else {
 541                                 r->set_position (0, this);
 542                         }
 543                         XMLNode &after = r->playlist()->get_state();
 544                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 545                 }
 546
 547                 commit_reversible_command ();
 548         }
 549 }
 550
 551 /* DISPLAY MOTION */
 552
 553 void
 554 Editor::move_to_start ()
 555 {
 556         session->goto_start ();
 557 }
 558
 559 void
 560 Editor::move_to_end ()
 561 {
 562
 563         session->request_locate (session->current_end_frame());
 564 }
 565
 566 void
 567 Editor::build_region_boundary_cache ()
 568 {
 569         nframes64_t pos = 0;
 570         vector<RegionPoint> interesting_points;
 571         boost::shared_ptr<Region> r;
 572         TrackViewList tracks;
 573         bool at_end = false;
 574
 575         region_boundary_cache.clear ();
 576
 577         if (session == 0) {
 578                 return;
 579         }
 580
 581         switch (_snap_type) {
 582         case SnapToRegionStart:
 583                 interesting_points.push_back (Start);
 584                 break;
 585         case SnapToRegionEnd:
 586                 interesting_points.push_back (End);
 587                 break;
 588         case SnapToRegionSync:
 589                 interesting_points.push_back (SyncPoint);
 590                 break;
 591         case SnapToRegionBoundary:
 592                 interesting_points.push_back (Start);
 593                 interesting_points.push_back (End);
 594                 break;
 595         default:
 596                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), _snap_type) << endmsg;
 597                 /*NOTREACHED*/
 598                 return;
 599         }
 600
 601         TimeAxisView *ontrack = 0;
 602         TrackViewList tlist;
 603
 604         if (!selection->tracks.empty()) {
 605                 tlist = selection->tracks;
 606         } else {
 607                 tlist = track_views;
 608         }
 609
 610         while (pos < session->current_end_frame() && !at_end) {
 611
 612                 nframes64_t rpos;
 613                 nframes64_t lpos = max_frames;
 614
 615                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 616
 617                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 618                                 if (*p == interesting_points.back()) {
 619                                         at_end = true;
 620                                 }
 621                                 /* move to next point type */
 622                                 continue;
 623                         }
 624
 625                         switch (*p) {
 626                         case Start:
 627                                 rpos = r->first_frame();
 628                                 break;
 629
 630                         case End:
 631                                 rpos = r->last_frame();
 632                                 break;
 633
 634                         case SyncPoint:
 635                                 rpos = r->sync_position ();
 636                                 //r->adjust_to_sync (r->first_frame());
 637                                 break;
 638
 639                         default:
 640                                 break;
 641                         }
 642
 643                         float speed = 1.0f;
 644                         RouteTimeAxisView *rtav;
 645
 646                         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 647                                 if (rtav->get_diskstream() != 0) {
 648                                         speed = rtav->get_diskstream()->speed();
 649                                 }
 650                         }
 651
 652                         rpos = track_frame_to_session_frame (rpos, speed);
 653
 654                         if (rpos < lpos) {
 655                                 lpos = rpos;
 656                         }
 657
 658                         /* prevent duplicates, but we don't use set<> because we want to be able
 659                            to sort later.
 660                         */
 661
 662                         vector<nframes64_t>::iterator ri;
 663
 664                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 665                                 if (*ri == rpos) {
 666                                         break;
 667                                 }
 668                         }
 669
 670                         if (ri == region_boundary_cache.end()) {
 671                                 region_boundary_cache.push_back (rpos);
 672                         }
 673                 }
 674
 675                 pos = lpos + 1;
 676         }
 677
 678         /* finally sort to be sure that the order is correct */
 679
 680         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 681 }
 682
 683 boost::shared_ptr<Region>
 684 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 685 {
 686         TrackViewList::iterator i;
 687         nframes64_t closest = max_frames;
 688         boost::shared_ptr<Region> ret;
 689         nframes64_t rpos = 0;
 690
 691         float track_speed;
 692         nframes64_t track_frame;
 693         RouteTimeAxisView *rtav;
 694
 695         for (i = tracks.begin(); i != tracks.end(); ++i) {
 696
 697                 nframes64_t distance;
 698                 boost::shared_ptr<Region> r;
 699
 700                 track_speed = 1.0f;
 701                 if ( (rtav = dynamic_cast<RouteTimeAxisView*>(*i)) != 0 ) {
 702                         if (rtav->get_diskstream()!=0)
 703                                 track_speed = rtav->get_diskstream()->speed();
 704                 }
 705
 706                 track_frame = session_frame_to_track_frame(frame, track_speed);
 707
 708                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 709                         continue;
 710                 }
 711
 712                 switch (point) {
 713                 case Start:
 714                         rpos = r->first_frame ();
 715                         break;
 716
 717                 case End:
 718                         rpos = r->last_frame ();
 719                         break;
 720
 721                 case SyncPoint:
 722                         rpos = r->sync_position ();
 723                         // r->adjust_to_sync (r->first_frame());
 724                         break;
 725                 }
 726
 727                 // rpos is a "track frame", converting it to "session frame"
 728                 rpos = track_frame_to_session_frame(rpos, track_speed);
 729
 730                 if (rpos > frame) {
 731                         distance = rpos - frame;
 732                 } else {
 733                         distance = frame - rpos;
 734                 }
 735
 736                 if (distance < closest) {
 737                         closest = distance;
 738                         if (ontrack != 0)
 739                                 *ontrack = (*i);
 740                         ret = r;
 741                 }
 742         }
 743
 744         return ret;
 745 }
 746
 747 nframes64_t
 748 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 749 {
 750         nframes64_t distance = max_frames;
 751         nframes64_t current_nearest = -1;
 752
 753
 754         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 755                 nframes64_t contender;
 756                 nframes64_t d;
 757
 758                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 759
 760                 if (!rtv) {
 761                         continue;
 762                 }
 763
 764                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 765                         continue;
 766                 }
 767
 768                 d = ::llabs (pos - contender);
 769
 770                 if (d < distance) {
 771                         current_nearest = contender;
 772                         distance = d;
 773                 }
 774         }
 775
 776         return current_nearest;
 777 }
 778
 779 nframes64_t
 780 Editor::get_region_boundary (nframes64_t pos, int32_t dir, bool with_selection, bool only_onscreen)
 781 {
 782         nframes64_t target;
 783         TrackViewList tvl;
 784
 785         if (with_selection && Config->get_region_boundaries_from_selected_tracks()) {
 786
 787                 if (!selection->tracks.empty()) {
 788
 789                         target = find_next_region_boundary (pos, dir, selection->tracks);
 790
 791                 } else {
 792
 793                         if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 794                                 get_onscreen_tracks (tvl);
 795                                 target = find_next_region_boundary (pos, dir, tvl);
 796                         } else {
 797                                 target = find_next_region_boundary (pos, dir, track_views);
 798                         }
 799                 }
 800
 801         } else {
 802
 803                 if (only_onscreen || Config->get_region_boundaries_from_onscreen_tracks()) {
 804                         get_onscreen_tracks (tvl);
 805                         target = find_next_region_boundary (pos, dir, tvl);
 806                 } else {
 807                         target = find_next_region_boundary (pos, dir, track_views);
 808                 }
 809         }
 810
 811         return target;
 812 }
 813
 814 void
 815 Editor::cursor_to_region_boundary (bool with_selection, int32_t dir)
 816 {
 817         nframes64_t pos = playhead_cursor->current_frame;
 818         nframes64_t target;
 819
 820         if (!session) {
 821                 return;
 822         }
 823
 824         // so we don't find the current region again..
 825         if (dir > 0 || pos > 0) {
 826                 pos += dir;
 827         }
 828
 829         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
 830                 return;
 831         }
 832
 833
 834         session->request_locate (target);
 835 }
 836
 837 void
 838 Editor::cursor_to_next_region_boundary (bool with_selection)
 839 {
 840         cursor_to_region_boundary (with_selection, 1);
 841 }
 842
 843 void
 844 Editor::cursor_to_previous_region_boundary (bool with_selection)
 845 {
 846         cursor_to_region_boundary (with_selection, -1);
 847 }
 848
 849 void
 850 Editor::cursor_to_region_point (EditorCursor* cursor, RegionPoint point, int32_t dir)
 851 {
 852         boost::shared_ptr<Region> r;
 853         nframes64_t pos = cursor->current_frame;
 854
 855         if (!session) {
 856                 return;
 857         }
 858
 859         TimeAxisView *ontrack = 0;
 860
 861         // so we don't find the current region again..
 862         if (dir>0 || pos>0)
 863                 pos+=dir;
 864
 865         if (!selection->tracks.empty()) {
 866
 867                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 868
 869         } else if (clicked_axisview) {
 870
 871                 TrackViewList t;
 872                 t.push_back (clicked_axisview);
 873
 874                 r = find_next_region (pos, point, dir, t, &ontrack);
 875
 876         } else {
 877
 878                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 879         }
 880
 881         if (r == 0) {
 882                 return;
 883         }
 884
 885         switch (point){
 886         case Start:
 887                 pos = r->first_frame ();
 888                 break;
 889
 890         case End:
 891                 pos = r->last_frame ();
 892                 break;
 893
 894         case SyncPoint:
 895                 pos = r->sync_position ();
 896                 // r->adjust_to_sync (r->first_frame());
 897                 break;
 898         }
 899
 900         float speed = 1.0f;
 901         RouteTimeAxisView *rtav;
 902
 903         if ( ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0 ) {
 904                 if (rtav->get_diskstream() != 0) {
 905                         speed = rtav->get_diskstream()->speed();
 906                 }
 907         }
 908
 909         pos = track_frame_to_session_frame(pos, speed);
 910
 911         if (cursor == playhead_cursor) {
 912                 session->request_locate (pos);
 913         } else {
 914                 cursor->set_position (pos);
 915         }
 916 }
 917
 918 void
 919 Editor::cursor_to_next_region_point (EditorCursor* cursor, RegionPoint point)
 920 {
 921         cursor_to_region_point (cursor, point, 1);
 922 }
 923
 924 void
 925 Editor::cursor_to_previous_region_point (EditorCursor* cursor, RegionPoint point)
 926 {
 927         cursor_to_region_point (cursor, point, -1);
 928 }
 929
 930 void
 931 Editor::cursor_to_selection_start (EditorCursor *cursor)
 932 {
 933         nframes64_t pos = 0;
 934         RegionSelection rs;
 935
 936         get_regions_for_action (rs);
 937
 938         switch (mouse_mode) {
 939         case MouseObject:
 940                 if (!rs.empty()) {
 941                         pos = rs.start();
 942                 }
 943                 break;
 944
 945         case MouseRange:
 946                 if (!selection->time.empty()) {
 947                         pos = selection->time.start ();
 948                 }
 949                 break;
 950
 951         default:
 952                 return;
 953         }
 954
 955         if (cursor == playhead_cursor) {
 956                 session->request_locate (pos);
 957         } else {
 958                 cursor->set_position (pos);
 959         }
 960 }
 961
 962 void
 963 Editor::cursor_to_selection_end (EditorCursor *cursor)
 964 {
 965         nframes64_t pos = 0;
 966         RegionSelection rs;
 967
 968         get_regions_for_action (rs);
 969
 970         switch (mouse_mode) {
 971         case MouseObject:
 972                 if (!rs.empty()) {
 973                         pos = rs.end_frame();
 974                 }
 975                 break;
 976
 977         case MouseRange:
 978                 if (!selection->time.empty()) {
 979                         pos = selection->time.end_frame ();
 980                 }
 981                 break;
 982
 983         default:
 984                 return;
 985         }
 986
 987         if (cursor == playhead_cursor) {
 988                 session->request_locate (pos);
 989         } else {
 990                 cursor->set_position (pos);
 991         }
 992 }
 993
 994 void
 995 Editor::selected_marker_to_region_boundary (bool with_selection, int32_t dir)
 996 {
 997         nframes64_t target;
 998         Location* loc;
 999         bool ignored;
1000
1001         if (!session) {
1002                 return;
1003         }
1004
1005         if (selection->markers.empty()) {
1006                 nframes64_t mouse;
1007                 bool ignored;
1008
1009                 if (!mouse_frame (mouse, ignored)) {
1010                         return;
1011                 }
1012
1013                 add_location_mark (mouse);
1014         }
1015
1016         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1017                 return;
1018         }
1019
1020         nframes64_t pos = loc->start();
1021
1022         // so we don't find the current region again..
1023         if (dir > 0 || pos > 0) {
1024                 pos += dir;
1025         }
1026
1027         if ((target = get_region_boundary (pos, dir, with_selection, false)) < 0) {
1028                 return;
1029         }
1030
1031         loc->move_to (target);
1032 }
1033
1034 void
1035 Editor::selected_marker_to_next_region_boundary (bool with_selection)
1036 {
1037         selected_marker_to_region_boundary (with_selection, 1);
1038 }
1039
1040 void
1041 Editor::selected_marker_to_previous_region_boundary (bool with_selection)
1042 {
1043         selected_marker_to_region_boundary (with_selection, -1);
1044 }
1045
1046 void
1047 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1048 {
1049         boost::shared_ptr<Region> r;
1050         nframes64_t pos;
1051         Location* loc;
1052         bool ignored;
1053
1054         if (!session || selection->markers.empty()) {
1055                 return;
1056         }
1057
1058         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1059                 return;
1060         }
1061
1062         TimeAxisView *ontrack = 0;
1063
1064         pos = loc->start();
1065
1066         // so we don't find the current region again..
1067         if (dir>0 || pos>0)
1068                 pos+=dir;
1069
1070         if (!selection->tracks.empty()) {
1071
1072                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1073
1074         } else {
1075
1076                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1077         }
1078
1079         if (r == 0) {
1080                 return;
1081         }
1082
1083         switch (point){
1084         case Start:
1085                 pos = r->first_frame ();
1086                 break;
1087
1088         case End:
1089                 pos = r->last_frame ();
1090                 break;
1091
1092         case SyncPoint:
1093                 pos = r->adjust_to_sync (r->first_frame());
1094                 break;
1095         }
1096
1097         float speed = 1.0f;
1098         RouteTimeAxisView *rtav;
1099
1100         if (ontrack != 0 && (rtav = dynamic_cast<RouteTimeAxisView*>(ontrack)) != 0) {
1101                 if (rtav->get_diskstream() != 0) {
1102                         speed = rtav->get_diskstream()->speed();
1103                 }
1104         }
1105
1106         pos = track_frame_to_session_frame(pos, speed);
1107
1108         loc->move_to (pos);
1109 }
1110
1111 void
1112 Editor::selected_marker_to_next_region_point (RegionPoint point)
1113 {
1114         selected_marker_to_region_point (point, 1);
1115 }
1116
1117 void
1118 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1119 {
1120         selected_marker_to_region_point (point, -1);
1121 }
1122
1123 void
1124 Editor::selected_marker_to_selection_start ()
1125 {
1126         nframes64_t pos = 0;
1127         Location* loc;
1128         bool ignored;
1129
1130         if (!session || selection->markers.empty()) {
1131                 return;
1132         }
1133
1134         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1135                 return;
1136         }
1137
1138         RegionSelection rs;
1139
1140         get_regions_for_action (rs);
1141
1142         switch (mouse_mode) {
1143         case MouseObject:
1144                 if (!rs.empty()) {
1145                         pos = rs.start();
1146                 }
1147                 break;
1148
1149         case MouseRange:
1150                 if (!selection->time.empty()) {
1151                         pos = selection->time.start ();
1152                 }
1153                 break;
1154
1155         default:
1156                 return;
1157         }
1158
1159         loc->move_to (pos);
1160 }
1161
1162 void
1163 Editor::selected_marker_to_selection_end ()
1164 {
1165         nframes64_t pos = 0;
1166         Location* loc;
1167         bool ignored;
1168
1169         if (!session || selection->markers.empty()) {
1170                 return;
1171         }
1172
1173         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1174                 return;
1175         }
1176
1177         RegionSelection rs;
1178
1179         get_regions_for_action (rs);
1180
1181         switch (mouse_mode) {
1182         case MouseObject:
1183                 if (!rs.empty()) {
1184                         pos = rs.end_frame();
1185                 }
1186                 break;
1187
1188         case MouseRange:
1189                 if (!selection->time.empty()) {
1190                         pos = selection->time.end_frame ();
1191                 }
1192                 break;
1193
1194         default:
1195                 return;
1196         }
1197
1198         loc->move_to (pos);
1199 }
1200
1201 void
1202 Editor::scroll_playhead (bool forward)
1203 {
1204         nframes64_t pos = playhead_cursor->current_frame;
1205         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1206
1207         if (forward) {
1208                 if (pos == max_frames) {
1209                         return;
1210                 }
1211
1212                 if (pos < max_frames - delta) {
1213                         pos += delta ;
1214                 } else {
1215                         pos = max_frames;
1216                 }
1217
1218         } else {
1219
1220                 if (pos == 0) {
1221                         return;
1222                 }
1223
1224                 if (pos > delta) {
1225                         pos -= delta;
1226                 } else {
1227                         pos = 0;
1228                 }
1229         }
1230
1231         session->request_locate (pos);
1232 }
1233
1234 void
1235 Editor::playhead_backward ()
1236 {
1237         nframes64_t pos;
1238         nframes64_t cnt;
1239         float prefix;
1240         bool was_floating;
1241
1242         if (get_prefix (prefix, was_floating)) {
1243                 cnt = 1;
1244         } else {
1245                 if (was_floating) {
1246                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1247                 } else {
1248                         cnt = (nframes64_t) prefix;
1249                 }
1250         }
1251
1252         pos = playhead_cursor->current_frame;
1253
1254         if ((nframes64_t) pos < cnt) {
1255                 pos = 0;
1256         } else {
1257                 pos -= cnt;
1258         }
1259
1260         /* XXX this is completely insane. with the current buffering
1261            design, we'll force a complete track buffer flush and
1262            reload, just to move 1 sample !!!
1263         */
1264
1265         session->request_locate (pos);
1266 }
1267
1268 void
1269 Editor::playhead_forward ()
1270 {
1271         nframes64_t pos;
1272         nframes64_t cnt;
1273         bool was_floating;
1274         float prefix;
1275
1276         if (get_prefix (prefix, was_floating)) {
1277                 cnt = 1;
1278         } else {
1279                 if (was_floating) {
1280                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1281                 } else {
1282                         cnt = (nframes64_t) floor (prefix);
1283                 }
1284         }
1285
1286         pos = playhead_cursor->current_frame;
1287
1288         /* XXX this is completely insane. with the current buffering
1289            design, we'll force a complete track buffer flush and
1290            reload, just to move 1 sample !!!
1291         */
1292
1293         session->request_locate (pos+cnt);
1294 }
1295
1296 void
1297 Editor::cursor_align (bool playhead_to_edit)
1298 {
1299         if (!session) {
1300                 return;
1301         }
1302
1303         if (playhead_to_edit) {
1304
1305                 if (selection->markers.empty()) {
1306                         return;
1307                 }
1308
1309                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1310
1311         } else {
1312                 /* move selected markers to playhead */
1313
1314                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1315                         bool ignored;
1316
1317                         Location* loc = find_location_from_marker (*i, ignored);
1318
1319                         if (loc->is_mark()) {
1320                                 loc->set_start (playhead_cursor->current_frame);
1321                         } else {
1322                                 loc->set (playhead_cursor->current_frame,
1323                                           playhead_cursor->current_frame + loc->length());
1324                         }
1325                 }
1326         }
1327 }
1328
1329 void
1330 Editor::edit_cursor_backward ()
1331 {
1332         nframes64_t pos;
1333         nframes64_t cnt;
1334         float prefix;
1335         bool was_floating;
1336
1337         if (get_prefix (prefix, was_floating)) {
1338                 cnt = 1;
1339         } else {
1340                 if (was_floating) {
1341                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1342                 } else {
1343                         cnt = (nframes64_t) prefix;
1344                 }
1345         }
1346
1347         if ((pos = get_preferred_edit_position()) < 0) {
1348                 return;
1349         }
1350
1351         if (pos < cnt) {
1352                 pos = 0;
1353         } else {
1354                 pos -= cnt;
1355         }
1356
1357         // EDIT CURSOR edit_cursor->set_position (pos);
1358 }
1359
1360 void
1361 Editor::edit_cursor_forward ()
1362 {
1363         //nframes64_t pos;
1364         nframes64_t cnt;
1365         bool was_floating;
1366         float prefix;
1367
1368         if (get_prefix (prefix, was_floating)) {
1369                 cnt = 1;
1370         } else {
1371                 if (was_floating) {
1372                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1373                 } else {
1374                         cnt = (nframes64_t) floor (prefix);
1375                 }
1376         }
1377
1378         // pos = edit_cursor->current_frame;
1379         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1380 }
1381
1382 void
1383 Editor::goto_frame ()
1384 {
1385         float prefix;
1386         bool was_floating;
1387         nframes64_t frame;
1388
1389         if (get_prefix (prefix, was_floating)) {
1390                 return;
1391         }
1392
1393         if (was_floating) {
1394                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1395         } else {
1396                 frame = (nframes64_t) floor (prefix);
1397         }
1398
1399         session->request_locate (frame);
1400 }
1401
1402 void
1403 Editor::scroll_backward (float pages)
1404 {
1405         nframes64_t frame;
1406         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1407         bool was_floating;
1408         float prefix;
1409         nframes64_t cnt;
1410
1411         if (get_prefix (prefix, was_floating)) {
1412                 cnt = (nframes64_t) floor (pages * one_page);
1413         } else {
1414                 if (was_floating) {
1415                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1416                 } else {
1417                         cnt = (nframes64_t) floor (prefix * one_page);
1418                 }
1419         }
1420
1421         if (leftmost_frame < cnt) {
1422                 frame = 0;
1423         } else {
1424                 frame = leftmost_frame - cnt;
1425         }
1426
1427         reset_x_origin (frame);
1428 }
1429
1430 void
1431 Editor::scroll_forward (float pages)
1432 {
1433         nframes64_t frame;
1434         nframes64_t one_page = (nframes64_t) rint (_canvas_width * frames_per_unit);
1435         bool was_floating;
1436         float prefix;
1437         nframes64_t cnt;
1438
1439         if (get_prefix (prefix, was_floating)) {
1440                 cnt = (nframes64_t) floor (pages * one_page);
1441         } else {
1442                 if (was_floating) {
1443                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1444                 } else {
1445                         cnt = (nframes64_t) floor (prefix * one_page);
1446                 }
1447         }
1448
1449         if (max_frames - cnt < leftmost_frame) {
1450                 frame = max_frames - cnt;
1451         } else {
1452                 frame = leftmost_frame + cnt;
1453         }
1454
1455         reset_x_origin (frame);
1456 }
1457
1458 void
1459 Editor::scroll_tracks_down ()
1460 {
1461         float prefix;
1462         bool was_floating;
1463         int cnt;
1464
1465         if (get_prefix (prefix, was_floating)) {
1466                 cnt = 1;
1467         } else {
1468                 cnt = (int) floor (prefix);
1469         }
1470
1471         double vert_value = vertical_adjustment.get_value() + (cnt *
1472                 vertical_adjustment.get_page_size());
1473         if (vert_value > vertical_adjustment.get_upper() - _canvas_height) {
1474                 vert_value = vertical_adjustment.get_upper() - _canvas_height;
1475         }
1476         vertical_adjustment.set_value (vert_value);
1477 }
1478
1479 void
1480 Editor::scroll_tracks_up ()
1481 {
1482         float prefix;
1483         bool was_floating;
1484         int cnt;
1485
1486         if (get_prefix (prefix, was_floating)) {
1487                 cnt = 1;
1488         } else {
1489                 cnt = (int) floor (prefix);
1490         }
1491
1492         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1493 }
1494
1495 void
1496 Editor::scroll_tracks_down_line ()
1497 {
1498
1499         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1500         double vert_value = adj->get_value() + 60;
1501
1502         if (vert_value>adj->get_upper() - _canvas_height) {
1503                 vert_value = adj->get_upper() - _canvas_height;
1504         }
1505         adj->set_value (vert_value);
1506 }
1507
1508 void
1509 Editor::scroll_tracks_up_line ()
1510 {
1511         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1512         adj->set_value (adj->get_value() - 60);
1513 }
1514
1515 /* ZOOM */
1516
1517 void
1518 Editor::tav_zoom_step (bool coarser)
1519 {
1520         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1521
1522         _routes->suspend_redisplay ();
1523
1524         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1525                 TimeAxisView *tv = (static_cast<TimeAxisView*>(*i));
1526                         tv->step_height (coarser);
1527         }
1528
1529         _routes->resume_redisplay ();
1530 }
1531
1532 void
1533 Editor::temporal_zoom_step (bool coarser)
1534 {
1535         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1536
1537         double nfpu;
1538
1539         nfpu = frames_per_unit;
1540
1541         if (coarser) {
1542                 nfpu *= 1.61803399;
1543         } else {
1544                 nfpu = max(1.0,(nfpu/1.61803399));
1545         }
1546
1547         temporal_zoom (nfpu);
1548 }
1549
1550 void
1551 Editor::temporal_zoom (gdouble fpu)
1552 {
1553         if (!session) return;
1554
1555         nframes64_t current_page = current_page_frames();
1556         nframes64_t current_leftmost = leftmost_frame;
1557         nframes64_t current_rightmost;
1558         nframes64_t current_center;
1559         nframes64_t new_page_size;
1560         nframes64_t half_page_size;
1561         nframes64_t leftmost_after_zoom = 0;
1562         nframes64_t where;
1563         bool in_track_canvas;
1564         double nfpu;
1565         double l;
1566
1567         /* XXX this limit is also in ::set_frames_per_unit() */
1568
1569         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1570                 return;
1571         }
1572
1573         nfpu = fpu;
1574
1575         new_page_size = (nframes64_t) floor (_canvas_width * nfpu);
1576         half_page_size = new_page_size / 2;
1577
1578         switch (zoom_focus) {
1579         case ZoomFocusLeft:
1580                 leftmost_after_zoom = current_leftmost;
1581                 break;
1582
1583         case ZoomFocusRight:
1584                 current_rightmost = leftmost_frame + current_page;
1585                 if (current_rightmost < new_page_size) {
1586                         leftmost_after_zoom = 0;
1587                 } else {
1588                         leftmost_after_zoom = current_rightmost - new_page_size;
1589                 }
1590                 break;
1591
1592         case ZoomFocusCenter:
1593                 current_center = current_leftmost + (current_page/2);
1594                 if (current_center < half_page_size) {
1595                         leftmost_after_zoom = 0;
1596                 } else {
1597                         leftmost_after_zoom = current_center - half_page_size;
1598                 }
1599                 break;
1600
1601         case ZoomFocusPlayhead:
1602                 /* try to keep the playhead in the same place */
1603
1604                 where = playhead_cursor->current_frame;
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                 break;
1616
1617         case ZoomFocusMouse:
1618                 /* try to keep the mouse over the same point in the display */
1619
1620                 if (!mouse_frame (where, in_track_canvas)) {
1621                         /* use playhead instead */
1622                         where = playhead_cursor->current_frame;
1623
1624                         if (where < half_page_size) {
1625                                 leftmost_after_zoom = 0;
1626                         } else {
1627                                 leftmost_after_zoom = where - half_page_size;
1628                         }
1629
1630                 } else {
1631
1632                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1633
1634                         if (l < 0) {
1635                                 leftmost_after_zoom = 0;
1636                         } else if (l > max_frames) {
1637                                 leftmost_after_zoom = max_frames - new_page_size;
1638                         } else {
1639                                 leftmost_after_zoom = (nframes64_t) l;
1640                         }
1641                 }
1642
1643                 break;
1644
1645         case ZoomFocusEdit:
1646                 /* try to keep the edit point in the same place */
1647                 where = get_preferred_edit_position ();
1648
1649                 if (where > 0) {
1650
1651                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1652
1653                         if (l < 0) {
1654                                 leftmost_after_zoom = 0;
1655                         } else if (l > max_frames) {
1656                                 leftmost_after_zoom = max_frames - new_page_size;
1657                         } else {
1658                                 leftmost_after_zoom = (nframes64_t) l;
1659                         }
1660
1661                 } else {
1662                         /* edit point not defined */
1663                         return;
1664                 }
1665                 break;
1666
1667         }
1668
1669         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1670
1671         reposition_and_zoom (leftmost_after_zoom, nfpu);
1672 }
1673
1674 void
1675 Editor::temporal_zoom_region (bool both_axes)
1676 {
1677
1678         nframes64_t start = max_frames;
1679         nframes64_t end = 0;
1680         RegionSelection rs;
1681         set<TimeAxisView*> tracks;
1682
1683         get_regions_for_action (rs);
1684
1685         if (rs.empty()) {
1686                 return;
1687         }
1688
1689         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1690
1691                 if ((*i)->region()->position() < start) {
1692                         start = (*i)->region()->position();
1693                 }
1694
1695                 if ((*i)->region()->last_frame() + 1 > end) {
1696                         end = (*i)->region()->last_frame() + 1;
1697                 }
1698
1699                 tracks.insert (&((*i)->get_time_axis_view()));
1700         }
1701
1702         /* now comes an "interesting" hack ... make sure we leave a little space
1703            at each end of the editor so that the zoom doesn't fit the region
1704            precisely to the screen.
1705         */
1706
1707         GdkScreen* screen = gdk_screen_get_default ();
1708         gint pixwidth = gdk_screen_get_width (screen);
1709         gint mmwidth = gdk_screen_get_width_mm (screen);
1710         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1711         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1712
1713         if ((start == 0 && end == 0) || end < start) {
1714                 return;
1715         }
1716
1717         nframes64_t range = end - start;
1718         double new_fpu = (double)range / (double)_canvas_width;
1719         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1720
1721         if (start > extra_samples) {
1722                 start -= extra_samples;
1723         } else {
1724                 start = 0;
1725         }
1726
1727         if (max_frames - extra_samples > end) {
1728                 end += extra_samples;
1729         } else {
1730                 end = max_frames;
1731         }
1732
1733         if (both_axes) {
1734                 /* save visual state with track states included, and prevent
1735                    set_frames_per_unit() from doing it again.
1736                 */
1737                 undo_visual_stack.push_back (current_visual_state(true));
1738                 no_save_visual = true;
1739         }
1740
1741         temporal_zoom_by_frame (start, end, "zoom to region");
1742
1743         if (both_axes) {
1744                 uint32_t per_track_height = (uint32_t) floor ((_canvas_height - canvas_timebars_vsize - 10.0) / tracks.size());
1745
1746                 /* set visible track heights appropriately */
1747
1748                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1749                         (*t)->set_height (per_track_height);
1750                 }
1751
1752                 /* hide irrelevant tracks */
1753
1754                 _routes->suspend_redisplay ();
1755
1756                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1757                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1758                                 hide_track_in_display (**i, true);
1759                         }
1760                 }
1761
1762                 _routes->resume_redisplay ();
1763
1764                 vertical_adjustment.set_value (0.0);
1765                 no_save_visual = false;
1766         }
1767
1768         redo_visual_stack.push_back (current_visual_state());
1769 }
1770
1771 void
1772 Editor::zoom_to_region (bool both_axes)
1773 {
1774         temporal_zoom_region (both_axes);
1775 }
1776
1777 void
1778 Editor::temporal_zoom_selection ()
1779 {
1780         if (!selection) return;
1781
1782         if (selection->time.empty()) {
1783                 return;
1784         }
1785
1786         nframes64_t start = selection->time[clicked_selection].start;
1787         nframes64_t end = selection->time[clicked_selection].end;
1788
1789         temporal_zoom_by_frame (start, end, "zoom to selection");
1790 }
1791
1792 void
1793 Editor::temporal_zoom_session ()
1794 {
1795         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1796
1797         if (session) {
1798                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1799         }
1800 }
1801
1802 void
1803 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & /*op*/)
1804 {
1805         if (!session) return;
1806
1807         if ((start == 0 && end == 0) || end < start) {
1808                 return;
1809         }
1810
1811         nframes64_t range = end - start;
1812
1813         double new_fpu = (double)range / (double)_canvas_width;
1814
1815         nframes64_t new_page = (nframes64_t) floor (_canvas_width * new_fpu);
1816         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1817         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1818
1819         if (new_leftmost > middle) {
1820                 new_leftmost = 0;
1821         }
1822
1823         reposition_and_zoom (new_leftmost, new_fpu);
1824 }
1825
1826 void
1827 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1828 {
1829         if (!session) {
1830                 return;
1831         }
1832         double range_before = frame - leftmost_frame;
1833         double new_fpu;
1834
1835         new_fpu = frames_per_unit;
1836
1837         if (coarser) {
1838                 new_fpu *= 1.61803399;
1839                 range_before *= 1.61803399;
1840         } else {
1841                 new_fpu = max(1.0,(new_fpu/1.61803399));
1842                 range_before /= 1.61803399;
1843         }
1844
1845         if (new_fpu == frames_per_unit)  {
1846                 return;
1847         }
1848
1849         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1850
1851         if (new_leftmost > frame) {
1852                 new_leftmost = 0;
1853         }
1854 //      begin_reversible_command (_("zoom to frame"));
1855 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1856 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1857 //      commit_reversible_command ();
1858
1859         reposition_and_zoom (new_leftmost, new_fpu);
1860 }
1861
1862
1863 bool
1864 Editor::choose_new_marker_name(string &name) {
1865
1866         if (!Config->get_name_new_markers()) {
1867                 /* don't prompt user for a new name */
1868                 return true;
1869         }
1870
1871         ArdourPrompter dialog (true);
1872
1873         dialog.set_prompt (_("New Name:"));
1874
1875         dialog.set_title (_("New Location Marker"));
1876
1877         dialog.set_name ("MarkNameWindow");
1878         dialog.set_size_request (250, -1);
1879         dialog.set_position (Gtk::WIN_POS_MOUSE);
1880
1881         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1882         dialog.set_initial_text (name);
1883
1884         dialog.show ();
1885
1886         switch (dialog.run ()) {
1887         case RESPONSE_ACCEPT:
1888                 break;
1889         default:
1890                 return false;
1891         }
1892
1893         dialog.get_result(name);
1894         return true;
1895
1896 }
1897
1898
1899 void
1900 Editor::add_location_from_selection ()
1901 {
1902         string rangename;
1903
1904         if (selection->time.empty()) {
1905                 return;
1906         }
1907
1908         if (session == 0 || clicked_axisview == 0) {
1909                 return;
1910         }
1911
1912         nframes64_t start = selection->time[clicked_selection].start;
1913         nframes64_t end = selection->time[clicked_selection].end;
1914
1915         session->locations()->next_available_name(rangename,"selection");
1916         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1917
1918         session->begin_reversible_command (_("add marker"));
1919         XMLNode &before = session->locations()->get_state();
1920         session->locations()->add (location, true);
1921         XMLNode &after = session->locations()->get_state();
1922         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1923         session->commit_reversible_command ();
1924 }
1925
1926 void
1927 Editor::add_location_mark (nframes64_t where)
1928 {
1929         string markername;
1930
1931         select_new_marker = true;
1932
1933         session->locations()->next_available_name(markername,"mark");
1934         if (!choose_new_marker_name(markername)) {
1935                 return;
1936         }
1937         Location *location = new Location (where, where, markername, Location::IsMark);
1938         session->begin_reversible_command (_("add marker"));
1939         XMLNode &before = session->locations()->get_state();
1940         session->locations()->add (location, true);
1941         XMLNode &after = session->locations()->get_state();
1942         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1943         session->commit_reversible_command ();
1944 }
1945
1946 void
1947 Editor::add_location_from_playhead_cursor ()
1948 {
1949         add_location_mark (session->audible_frame());
1950 }
1951
1952 void
1953 Editor::add_locations_from_audio_region ()
1954 {
1955         RegionSelection rs;
1956
1957         get_regions_for_action (rs);
1958
1959         if (rs.empty()) {
1960                 return;
1961         }
1962
1963         session->begin_reversible_command (rs.size () > 1 ? _("add markers") : _("add marker"));
1964         XMLNode &before = session->locations()->get_state();
1965
1966         cerr << "Add locations\n";
1967
1968         for (RegionSelection::iterator i = rs.begin (); i != rs.end (); ++i) {
1969
1970                 boost::shared_ptr<Region> region = (*i)->region ();
1971
1972                 Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1973
1974                 session->locations()->add (location, true);
1975         }
1976
1977         XMLNode &after = session->locations()->get_state();
1978         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
1979         session->commit_reversible_command ();
1980 }
1981
1982 void
1983 Editor::add_location_from_audio_region ()
1984 {
1985         RegionSelection rs;
1986
1987         get_regions_for_action (rs);
1988
1989         if (rs.empty()) {
1990                 return;
1991         }
1992
1993         session->begin_reversible_command (_("add marker"));
1994         XMLNode &before = session->locations()->get_state();
1995
1996         string markername;
1997
1998         if (rs.size() > 1) {            // more than one region selected
1999                 session->locations()->next_available_name(markername, "regions");
2000         } else {
2001                 RegionView* rv = *(rs.begin());
2002                 boost::shared_ptr<Region> region = rv->region();
2003                 markername = region->name();
2004         }
2005
2006         if (!choose_new_marker_name(markername)) {
2007                 return;
2008         }
2009
2010         cerr << "Add location\n";
2011
2012         // single range spanning all selected
2013         Location *location = new Location (rs.start(), rs.end_frame(), markername, Location::IsRangeMarker);
2014         session->locations()->add (location, true);
2015
2016         XMLNode &after = session->locations()->get_state();
2017         session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
2018         session->commit_reversible_command ();
2019 }
2020
2021 void
2022 Editor::amplitude_zoom_step (bool in)
2023 {
2024         gdouble zoom = 1.0;
2025
2026         if (in) {
2027                 zoom *= 2.0;
2028         } else {
2029                 if (zoom > 2.0) {
2030                         zoom /= 2.0;
2031                 } else {
2032                         zoom = 1.0;
2033                 }
2034         }
2035
2036 #ifdef FIX_FOR_CANVAS
2037         /* XXX DO SOMETHING */
2038 #endif
2039 }
2040
2041
2042 /* DELETION */
2043
2044
2045 void
2046 Editor::delete_sample_forward ()
2047 {
2048 }
2049
2050 void
2051 Editor::delete_sample_backward ()
2052 {
2053 }
2054
2055 void
2056 Editor::delete_screen ()
2057 {
2058 }
2059
2060 /* SEARCH */
2061
2062 void
2063 Editor::search_backwards ()
2064 {
2065         /* what ? */
2066 }
2067
2068 void
2069 Editor::search_forwards ()
2070 {
2071         /* what ? */
2072 }
2073
2074 /* MARKS */
2075
2076 void
2077 Editor::jump_forward_to_mark ()
2078 {
2079         if (!session) {
2080                 return;
2081         }
2082
2083         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2084
2085         if (location) {
2086                 session->request_locate (location->start(), session->transport_rolling());
2087         } else {
2088                 session->request_locate (session->current_end_frame());
2089         }
2090 }
2091
2092 void
2093 Editor::jump_backward_to_mark ()
2094 {
2095         if (!session) {
2096                 return;
2097         }
2098
2099         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2100
2101         if (location) {
2102                 session->request_locate (location->start(), session->transport_rolling());
2103         } else {
2104                 session->goto_start ();
2105         }
2106 }
2107
2108 void
2109 Editor::set_mark ()
2110 {
2111         nframes64_t pos;
2112         float prefix;
2113         bool was_floating;
2114         string markername;
2115
2116         if (get_prefix (prefix, was_floating)) {
2117                 pos = session->audible_frame ();
2118         } else {
2119                 if (was_floating) {
2120                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2121                 } else {
2122                         pos = (nframes64_t) floor (prefix);
2123                 }
2124         }
2125
2126         session->locations()->next_available_name(markername,"mark");
2127         if (!choose_new_marker_name(markername)) {
2128                 return;
2129         }
2130         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2131 }
2132
2133 void
2134 Editor::clear_markers ()
2135 {
2136         if (session) {
2137                 session->begin_reversible_command (_("clear markers"));
2138                 XMLNode &before = session->locations()->get_state();
2139                 session->locations()->clear_markers ();
2140                 XMLNode &after = session->locations()->get_state();
2141                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2142                 session->commit_reversible_command ();
2143         }
2144 }
2145
2146 void
2147 Editor::clear_ranges ()
2148 {
2149         if (session) {
2150                 session->begin_reversible_command (_("clear ranges"));
2151                 XMLNode &before = session->locations()->get_state();
2152
2153                 Location * looploc = session->locations()->auto_loop_location();
2154                 Location * punchloc = session->locations()->auto_punch_location();
2155
2156                 session->locations()->clear_ranges ();
2157                 // re-add these
2158                 if (looploc) session->locations()->add (looploc);
2159                 if (punchloc) session->locations()->add (punchloc);
2160
2161                 XMLNode &after = session->locations()->get_state();
2162                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2163                 session->commit_reversible_command ();
2164         }
2165 }
2166
2167 void
2168 Editor::clear_locations ()
2169 {
2170         session->begin_reversible_command (_("clear locations"));
2171         XMLNode &before = session->locations()->get_state();
2172         session->locations()->clear ();
2173         XMLNode &after = session->locations()->get_state();
2174         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2175         session->commit_reversible_command ();
2176         session->locations()->clear ();
2177 }
2178
2179 void
2180 Editor::unhide_markers ()
2181 {
2182         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2183                 Location *l = (*i).first;
2184                 if (l->is_hidden() && l->is_mark()) {
2185                         l->set_hidden(false, this);
2186                 }
2187         }
2188 }
2189
2190 void
2191 Editor::unhide_ranges ()
2192 {
2193         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2194                 Location *l = (*i).first;
2195                 if (l->is_hidden() && l->is_range_marker()) {
2196                         l->set_hidden(false, this);
2197                 }
2198         }
2199 }
2200
2201 /* INSERT/REPLACE */
2202
2203 void
2204 Editor::insert_region_list_drag (boost::shared_ptr<Region> region, int x, int y)
2205 {
2206         double wx, wy;
2207         double cx, cy;
2208         nframes64_t where;
2209         RouteTimeAxisView *rtv = 0;
2210         boost::shared_ptr<Playlist> playlist;
2211
2212         track_canvas->window_to_world (x, y, wx, wy);
2213         //wx += horizontal_adjustment.get_value();
2214         //wy += vertical_adjustment.get_value();
2215
2216         GdkEvent event;
2217         event.type = GDK_BUTTON_RELEASE;
2218         event.button.x = wx;
2219         event.button.y = wy;
2220
2221         where = event_frame (&event, &cx, &cy);
2222
2223         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2224                 /* clearly outside canvas area */
2225                 return;
2226         }
2227
2228         std::pair<TimeAxisView*, int> tv = trackview_by_y_position (cy);
2229         if (tv.first == 0) {
2230                 return;
2231         }
2232
2233         if ((rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2234                 return;
2235         }
2236
2237         if ((playlist = rtv->playlist()) == 0) {
2238                 return;
2239         }
2240
2241         snap_to (where);
2242
2243         begin_reversible_command (_("insert dragged region"));
2244         XMLNode &before = playlist->get_state();
2245         playlist->add_region (RegionFactory::create (region), where, 1.0);
2246         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2247         commit_reversible_command ();
2248 }
2249
2250 void
2251 Editor::insert_route_list_drag (boost::shared_ptr<Route> route, int x, int y) {
2252         double wx, wy;
2253         double cx, cy;
2254         nframes_t where;
2255         RouteTimeAxisView *dest_rtv = 0;
2256         RouteTimeAxisView *source_rtv = 0;
2257
2258         track_canvas->window_to_world (x, y, wx, wy);
2259         wx += horizontal_adjustment.get_value();
2260         wy += vertical_adjustment.get_value();
2261
2262         GdkEvent event;
2263         event.type = GDK_BUTTON_RELEASE;
2264         event.button.x = wx;
2265         event.button.y = wy;
2266
2267         where = event_frame (&event, &cx, &cy);
2268
2269         std::pair<TimeAxisView*, int> const tv = trackview_by_y_position (cy);
2270         if (tv.first == 0) {
2271                 return;
2272         }
2273
2274         if ((dest_rtv = dynamic_cast<RouteTimeAxisView*> (tv.first)) == 0) {
2275                 return;
2276         }
2277
2278         /* use this drag source to add underlay to a track. But we really don't care
2279            about the Route, only the view of the route, so find it first */
2280         for(TrackViewList::iterator it = track_views.begin(); it != track_views.end(); ++it) {
2281                 if((source_rtv = dynamic_cast<RouteTimeAxisView*>(*it)) == 0) {
2282                         continue;
2283                 }
2284
2285                 if(source_rtv->route() == route && source_rtv != dest_rtv) {
2286                         dest_rtv->add_underlay(source_rtv->view());
2287                         break;
2288                 }
2289         }
2290 }
2291
2292 void
2293 Editor::insert_region_list_selection (float times)
2294 {
2295         RouteTimeAxisView *tv = 0;
2296         boost::shared_ptr<Playlist> playlist;
2297
2298         if (clicked_routeview != 0) {
2299                 tv = clicked_routeview;
2300         } else if (!selection->tracks.empty()) {
2301                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2302                         return;
2303                 }
2304         } else if (entered_track != 0) {
2305                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2306                         return;
2307                 }
2308         } else {
2309                 return;
2310         }
2311
2312         if ((playlist = tv->playlist()) == 0) {
2313                 return;
2314         }
2315
2316         boost::shared_ptr<Region> region = _regions->get_single_selection ();
2317         if (region == 0) {
2318                 return;
2319         }
2320
2321         begin_reversible_command (_("insert region"));
2322         XMLNode &before = playlist->get_state();
2323         playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2324         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2325         commit_reversible_command ();
2326 }
2327
2328 /* BUILT-IN EFFECTS */
2329
2330 void
2331 Editor::reverse_selection ()
2332 {
2333
2334 }
2335
2336 /* GAIN ENVELOPE EDITING */
2337
2338 void
2339 Editor::edit_envelope ()
2340 {
2341 }
2342
2343 /* PLAYBACK */
2344
2345 void
2346 Editor::transition_to_rolling (bool fwd)
2347 {
2348         if (!session) {
2349                 return;
2350         }
2351
2352         if (session->config.get_external_sync()) {
2353                 switch (session->config.get_sync_source()) {
2354                 case JACK:
2355                         break;
2356                 default:
2357                         /* transport controlled by the master */
2358                         return;
2359                 }
2360         }
2361
2362         if (session->is_auditioning()) {
2363                 session->cancel_audition ();
2364                 return;
2365         }
2366
2367         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2368 }
2369
2370 void
2371 Editor::play_from_start ()
2372 {
2373         session->request_locate (session->current_start_frame(), true);
2374 }
2375
2376 void
2377 Editor::play_from_edit_point ()
2378 {
2379         session->request_locate (get_preferred_edit_position(), true);
2380 }
2381
2382 void
2383 Editor::play_from_edit_point_and_return ()
2384 {
2385         nframes64_t start_frame;
2386         nframes64_t return_frame;
2387
2388         start_frame = get_preferred_edit_position (true);
2389
2390         if (session->transport_rolling()) {
2391                 session->request_locate (start_frame, false);
2392                 return;
2393         }
2394
2395         /* don't reset the return frame if its already set */
2396
2397         if ((return_frame = session->requested_return_frame()) < 0) {
2398                 return_frame = session->audible_frame();
2399         }
2400
2401         if (start_frame >= 0) {
2402                 session->request_roll_at_and_return (start_frame, return_frame);
2403         }
2404 }
2405
2406 void
2407 Editor::play_selection ()
2408 {
2409         if (selection->time.empty()) {
2410                 return;
2411         }
2412
2413         session->request_play_range (&selection->time, true);
2414 }
2415
2416 void
2417 Editor::loop_selected_region ()
2418 {
2419         RegionSelection rs;
2420
2421         get_regions_for_action (rs);
2422
2423         if (!rs.empty()) {
2424                 RegionView *rv = *(rs.begin());
2425                 Location* tll;
2426
2427                 if ((tll = transport_loop_location()) != 0)  {
2428
2429                         tll->set (rv->region()->position(), rv->region()->last_frame());
2430
2431                         // enable looping, reposition and start rolling
2432
2433                         session->request_play_loop (true);
2434                         session->request_locate (tll->start(), false);
2435                         session->request_transport_speed (1.0f);
2436                 }
2437         }
2438 }
2439
2440 void
2441 Editor::play_location (Location& location)
2442 {
2443         if (location.start() <= location.end()) {
2444                 return;
2445         }
2446
2447         session->request_bounded_roll (location.start(), location.end());
2448 }
2449
2450 void
2451 Editor::loop_location (Location& location)
2452 {
2453         if (location.start() <= location.end()) {
2454                 return;
2455         }
2456
2457         Location* tll;
2458
2459         if ((tll = transport_loop_location()) != 0) {
2460                 tll->set (location.start(), location.end());
2461
2462                 // enable looping, reposition and start rolling
2463                 session->request_play_loop (true);
2464                 session->request_locate (tll->start(), true);
2465         }
2466 }
2467
2468 void
2469 Editor::raise_region ()
2470 {
2471         selection->foreach_region (&Region::raise);
2472 }
2473
2474 void
2475 Editor::raise_region_to_top ()
2476 {
2477         selection->foreach_region (&Region::raise_to_top);
2478 }
2479
2480 void
2481 Editor::lower_region ()
2482 {
2483         selection->foreach_region (&Region::lower);
2484 }
2485
2486 void
2487 Editor::lower_region_to_bottom ()
2488 {
2489         selection->foreach_region (&Region::lower_to_bottom);
2490 }
2491
2492 /** Show the region editor for the selected regions */
2493 void
2494 Editor::edit_region ()
2495 {
2496         selection->foreach_regionview (&RegionView::show_region_editor);
2497 }
2498
2499 /** Show the midi list editor for the selected MIDI regions */
2500 void
2501 Editor::show_midi_list_editor ()
2502 {
2503         selection->foreach_midi_regionview (&MidiRegionView::show_list_editor);
2504 }
2505
2506 void
2507 Editor::rename_region()
2508 {
2509         RegionSelection rs;
2510
2511         get_regions_for_action (rs);
2512
2513         if (rs.empty()) {
2514                 return;
2515         }
2516
2517         ArdourDialog d (*this, _("Rename Region"), true, false);
2518         Entry entry;
2519         Label label (_("New name:"));
2520         HBox hbox;
2521
2522         hbox.set_spacing (6);
2523         hbox.pack_start (label, false, false);
2524         hbox.pack_start (entry, true, true);
2525
2526         d.get_vbox()->set_border_width (12);
2527         d.get_vbox()->pack_start (hbox, false, false);
2528
2529         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2530         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2531
2532         d.set_size_request (300, -1);
2533         d.set_position (Gtk::WIN_POS_MOUSE);
2534
2535         entry.set_text (rs.front()->region()->name());
2536         entry.select_region (0, -1);
2537
2538         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2539
2540         d.show_all ();
2541
2542         entry.grab_focus();
2543
2544         int ret = d.run();
2545
2546         d.hide ();
2547
2548         if (ret == RESPONSE_OK) {
2549                 std::string str = entry.get_text();
2550                 strip_whitespace_edges (str);
2551                 if (!str.empty()) {
2552                         rs.front()->region()->set_name (str);
2553                         _regions->redisplay ();
2554                 }
2555         }
2556 }
2557
2558 void
2559 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2560 {
2561         if (session->is_auditioning()) {
2562                 session->cancel_audition ();
2563         }
2564
2565         // note: some potential for creativity here, because region doesn't
2566         // have to belong to the playlist that Route is handling
2567
2568         // bool was_soloed = route.soloed();
2569
2570         route.set_solo (true, this);
2571
2572         session->request_bounded_roll (region->position(), region->position() + region->length());
2573
2574         /* XXX how to unset the solo state ? */
2575 }
2576
2577 /** Start an audition of the first selected region */
2578 void
2579 Editor::play_edit_range ()
2580 {
2581         nframes64_t start, end;
2582
2583         if (get_edit_op_range (start, end)) {
2584                 session->request_bounded_roll (start, end);
2585         }
2586 }
2587
2588 void
2589 Editor::play_selected_region ()
2590 {
2591         nframes64_t start = max_frames;
2592         nframes64_t end = 0;
2593         RegionSelection rs;
2594
2595         get_regions_for_action (rs);
2596
2597         if (rs.empty()) {
2598                 return;
2599         }
2600
2601         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2602                 if ((*i)->region()->position() < start) {
2603                         start = (*i)->region()->position();
2604                 }
2605                 if ((*i)->region()->last_frame() + 1 > end) {
2606                         end = (*i)->region()->last_frame() + 1;
2607                 }
2608         }
2609
2610         session->request_bounded_roll (start, end);
2611 }
2612
2613 void
2614 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2615 {
2616         session->audition_region (region);
2617 }
2618
2619 void
2620 Editor::build_interthread_progress_window ()
2621 {
2622         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2623
2624         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2625
2626         interthread_progress_window->set_border_width (12);
2627         interthread_progress_window->get_vbox()->set_spacing (6);
2628
2629         interthread_progress_label.set_alignment (0.5, 0.5);
2630
2631         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2632         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2633
2634         // GTK2FIX: this button needs a modifiable label
2635
2636         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2637         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2638
2639         interthread_cancel_button.add (interthread_cancel_label);
2640
2641         interthread_progress_window->set_default_size (200, 100);
2642 }
2643
2644 void
2645 Editor::interthread_cancel_clicked ()
2646 {
2647         if (current_interthread_info) {
2648                 current_interthread_info->cancel = true;
2649         }
2650 }
2651
2652 void
2653 Editor::region_from_selection ()
2654 {
2655         if (clicked_axisview == 0) {
2656                 return;
2657         }
2658
2659         if (selection->time.empty()) {
2660                 return;
2661         }
2662
2663         nframes64_t start = selection->time[clicked_selection].start;
2664         nframes64_t end = selection->time[clicked_selection].end;
2665
2666         TrackSelection tracks = get_tracks_for_range_action ();
2667
2668         nframes64_t selection_cnt = end - start + 1;
2669
2670         for (TrackSelection::iterator i = tracks.begin(); i != tracks.end(); ++i) {
2671                 boost::shared_ptr<Region> current;
2672                 boost::shared_ptr<Playlist> pl;
2673                 nframes64_t internal_start;
2674                 string new_name;
2675
2676                 if ((pl = (*i)->playlist()) == 0) {
2677                         continue;
2678                 }
2679
2680                 if ((current = pl->top_region_at (start)) == 0) {
2681                         continue;
2682                 }
2683
2684                 internal_start = start - current->position();
2685                 session->region_name (new_name, current->name(), true);
2686                 boost::shared_ptr<Region> region (RegionFactory::create (current,
2687                                 internal_start, selection_cnt, new_name));
2688         }
2689 }
2690
2691 void
2692 Editor::create_region_from_selection (vector<boost::shared_ptr<Region> >& new_regions)
2693 {
2694         if (selection->time.empty() || selection->tracks.empty()) {
2695                 return;
2696         }
2697
2698         nframes64_t start = selection->time[clicked_selection].start;
2699         nframes64_t end = selection->time[clicked_selection].end;
2700
2701         sort_track_selection ();
2702
2703         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2704                 boost::shared_ptr<Region> current;
2705                 boost::shared_ptr<Playlist> playlist;
2706                 nframes64_t internal_start;
2707                 string new_name;
2708
2709                 if ((playlist = (*i)->playlist()) == 0) {
2710                         continue;
2711                 }
2712
2713                 if ((current = playlist->top_region_at(start)) == 0) {
2714                         continue;
2715                 }
2716
2717                 internal_start = start - current->position();
2718                 session->region_name (new_name, current->name(), true);
2719
2720                 new_regions.push_back (RegionFactory::create (current,
2721                                         internal_start, end - start + 1, new_name));
2722         }
2723 }
2724
2725 void
2726 Editor::split_multichannel_region ()
2727 {
2728         RegionSelection rs;
2729
2730         get_regions_for_action (rs);
2731
2732         if (rs.empty()) {
2733                 return;
2734         }
2735
2736         vector< boost::shared_ptr<Region> > v;
2737
2738         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2739                 (*x)->region()->separate_by_channel (*session, v);
2740         }
2741 }
2742
2743 void
2744 Editor::new_region_from_selection ()
2745 {
2746         region_from_selection ();
2747         cancel_selection ();
2748 }
2749
2750 static void
2751 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2752 {
2753         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2754         case OverlapNone:
2755                 break;
2756         default:
2757                 rs->push_back (rv);
2758         }
2759 }
2760
2761 /** Return either:
2762  *    - selected tracks, or if there are none...
2763  *    - tracks containing selected regions, or if there are none...
2764  *    - all tracks
2765  * @return tracks.
2766  */
2767 TrackSelection
2768 Editor::get_tracks_for_range_action () const
2769 {
2770         TrackSelection t;
2771
2772         if (selection->tracks.empty()) {
2773
2774                 /* use tracks with selected regions */
2775
2776                 RegionSelection rs = selection->regions;
2777
2778                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2779                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2780
2781                         if (!t.contains (tv)) {
2782                                 t.push_back (tv);
2783                         }
2784                 }
2785
2786                 if (t.empty()) {
2787                         /* no regions and no tracks: use all tracks */
2788                         t = track_views;
2789                 }
2790
2791         } else {
2792
2793                 t = selection->tracks;
2794         }
2795
2796         return t;
2797 }
2798
2799 void
2800 Editor::separate_regions_between (const TimeSelection& ts)
2801 {
2802         bool in_command = false;
2803         boost::shared_ptr<Playlist> playlist;
2804         RegionSelection new_selection;
2805
2806         TrackSelection tmptracks = get_tracks_for_range_action ();
2807         sort_track_selection (&tmptracks);
2808
2809         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2810
2811                 RouteTimeAxisView* rtv;
2812
2813                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2814
2815                         if (rtv->is_track()) {
2816
2817                                 /* no edits to destructive tracks */
2818
2819                                 if (rtv->track()->diskstream()->destructive()) {
2820                                         continue;
2821                                 }
2822
2823                                 if ((playlist = rtv->playlist()) != 0) {
2824
2825                                         XMLNode *before;
2826                                         bool got_some;
2827
2828                                         before = &(playlist->get_state());
2829                                         got_some = false;
2830
2831                                         /* XXX need to consider musical time selections here at some point */
2832
2833                                         double speed = rtv->get_diskstream()->speed();
2834
2835
2836                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2837
2838                                                 sigc::connection c = rtv->view()->RegionViewAdded.connect (
2839                                                                 mem_fun(*this, &Editor::collect_new_region_view));
2840                                                 latest_regionviews.clear ();
2841
2842                                                 playlist->partition ((nframes64_t)((*t).start * speed),
2843                                                                 (nframes64_t)((*t).end * speed), true);
2844
2845                                                 c.disconnect ();
2846
2847                                                 if (!latest_regionviews.empty()) {
2848
2849                                                         got_some = true;
2850
2851                                                         rtv->view()->foreach_regionview (bind (
2852                                                                                 sigc::ptr_fun (add_if_covered),
2853                                                                                 &(*t), &new_selection));
2854
2855                                                         if (!in_command) {
2856                                                                 begin_reversible_command (_("separate"));
2857                                                                 in_command = true;
2858                                                         }
2859
2860                                                         session->add_command(new MementoCommand<Playlist>(
2861                                                                         *playlist, before, &playlist->get_state()));
2862                                                 }
2863                                         }
2864
2865                                         if (!got_some) {
2866                                                 delete before;
2867                                         }
2868                                 }
2869                         }
2870                 }
2871         }
2872
2873         if (in_command) {
2874                 selection->set (new_selection);
2875                 set_mouse_mode (MouseObject);
2876
2877                 commit_reversible_command ();
2878         }
2879 }
2880
2881 /** Take tracks from get_tracks_for_range_action and cut any regions
2882  *  on those tracks so that the tracks are empty over the time
2883  *  selection.
2884  */
2885 void
2886 Editor::separate_region_from_selection ()
2887 {
2888         /* preferentially use *all* ranges in the time selection if we're in range mode
2889            to allow discontiguous operation, since get_edit_op_range() currently
2890            returns a single range.
2891         */
2892
2893         if (mouse_mode == MouseRange && !selection->time.empty()) {
2894
2895                 separate_regions_between (selection->time);
2896
2897         } else {
2898
2899                 nframes64_t start;
2900                 nframes64_t end;
2901
2902                 if (get_edit_op_range (start, end)) {
2903
2904                         AudioRange ar (start, end, 1);
2905                         TimeSelection ts;
2906                         ts.push_back (ar);
2907
2908                         separate_regions_between (ts);
2909                 }
2910         }
2911 }
2912
2913 void
2914 Editor::separate_region_from_punch ()
2915 {
2916         Location* loc  = session->locations()->auto_punch_location();
2917         if (loc) {
2918                 separate_regions_using_location (*loc);
2919         }
2920 }
2921
2922 void
2923 Editor::separate_region_from_loop ()
2924 {
2925         Location* loc  = session->locations()->auto_loop_location();
2926         if (loc) {
2927                 separate_regions_using_location (*loc);
2928         }
2929 }
2930
2931 void
2932 Editor::separate_regions_using_location (Location& loc)
2933 {
2934         if (loc.is_mark()) {
2935                 return;
2936         }
2937
2938         AudioRange ar (loc.start(), loc.end(), 1);
2939         TimeSelection ts;
2940
2941         ts.push_back (ar);
2942
2943         separate_regions_between (ts);
2944 }
2945
2946 void
2947 Editor::crop_region_to_selection ()
2948 {
2949         if (!selection->time.empty()) {
2950
2951                 crop_region_to (selection->time.start(), selection->time.end_frame());
2952
2953         } else {
2954
2955                 nframes64_t start;
2956                 nframes64_t end;
2957
2958                 if (get_edit_op_range (start, end)) {
2959                         crop_region_to (start, end);
2960                 }
2961         }
2962
2963 }
2964
2965 void
2966 Editor::crop_region_to (nframes64_t start, nframes64_t end)
2967 {
2968         vector<boost::shared_ptr<Playlist> > playlists;
2969         boost::shared_ptr<Playlist> playlist;
2970         TrackSelection* ts;
2971
2972         if (selection->tracks.empty()) {
2973                 ts = &track_views;
2974         } else {
2975                 sort_track_selection ();
2976                 ts = &selection->tracks;
2977         }
2978
2979         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2980
2981                 RouteTimeAxisView* rtv;
2982
2983                 if ((rtv = dynamic_cast<RouteTimeAxisView*> ((*i))) != 0) {
2984
2985                         boost::shared_ptr<Track> t = rtv->track();
2986
2987                         if (t != 0 && ! t->diskstream()->destructive()) {
2988
2989                                 if ((playlist = rtv->playlist()) != 0) {
2990                                         playlists.push_back (playlist);
2991                                 }
2992                         }
2993                 }
2994         }
2995
2996         if (playlists.empty()) {
2997                 return;
2998         }
2999
3000         nframes64_t the_start;
3001         nframes64_t the_end;
3002         nframes64_t cnt;
3003
3004         begin_reversible_command (_("trim to selection"));
3005
3006         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
3007
3008                 boost::shared_ptr<Region> region;
3009
3010                 the_start = start;
3011
3012                 if ((region = (*i)->top_region_at(the_start)) == 0) {
3013                         continue;
3014                 }
3015
3016                 /* now adjust lengths to that we do the right thing
3017                    if the selection extends beyond the region
3018                 */
3019
3020                 the_start = max (the_start, (nframes64_t) region->position());
3021                 if (max_frames - the_start < region->length()) {
3022                         the_end = the_start + region->length() - 1;
3023                 } else {
3024                         the_end = max_frames;
3025                 }
3026                 the_end = min (end, the_end);
3027                 cnt = the_end - the_start + 1;
3028
3029                 XMLNode &before = (*i)->get_state();
3030                 region->trim_to (the_start, cnt, this);
3031                 XMLNode &after = (*i)->get_state();
3032                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3033         }
3034
3035         commit_reversible_command ();
3036 }
3037
3038 void
3039 Editor::region_fill_track ()
3040 {
3041         nframes64_t end;
3042         RegionSelection rs;
3043
3044         get_regions_for_action (rs);
3045
3046         if (!session || rs.empty()) {
3047                 return;
3048         }
3049
3050         end = session->current_end_frame ();
3051
3052         begin_reversible_command (_("region fill"));
3053
3054         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3055
3056                 boost::shared_ptr<Region> region ((*i)->region());
3057
3058                 boost::shared_ptr<Playlist> pl = region->playlist();
3059
3060                 if (end <= region->last_frame()) {
3061                         return;
3062                 }
3063
3064                 double times = (double) (end - region->last_frame()) / (double) region->length();
3065
3066                 if (times == 0) {
3067                         return;
3068                 }
3069
3070                 XMLNode &before = pl->get_state();
3071                 pl->add_region (RegionFactory::create (region), region->last_frame(), times);
3072                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3073         }
3074
3075         commit_reversible_command ();
3076 }
3077
3078 void
3079 Editor::region_fill_selection ()
3080 {
3081         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3082                 return;
3083         }
3084
3085         if (selection->time.empty()) {
3086                 return;
3087         }
3088
3089         boost::shared_ptr<Region> region = _regions->get_single_selection ();
3090         if (region == 0) {
3091                 return;
3092         }
3093
3094         nframes64_t start = selection->time[clicked_selection].start;
3095         nframes64_t end = selection->time[clicked_selection].end;
3096
3097         boost::shared_ptr<Playlist> playlist;
3098
3099         if (selection->tracks.empty()) {
3100                 return;
3101         }
3102
3103         nframes64_t selection_length = end - start;
3104         float times = (float)selection_length / region->length();
3105
3106         begin_reversible_command (_("fill selection"));
3107
3108         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3109
3110                 if ((playlist = (*i)->playlist()) == 0) {
3111                         continue;
3112                 }
3113
3114                 XMLNode &before = playlist->get_state();
3115                 playlist->add_region (RegionFactory::create (region), start, times);
3116                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3117         }
3118
3119         commit_reversible_command ();
3120 }
3121
3122 void
3123 Editor::set_region_sync_from_edit_point ()
3124 {
3125         nframes64_t where = get_preferred_edit_position ();
3126         RegionSelection rs;
3127         get_regions_for_action (rs);
3128         set_sync_point (where, rs);
3129 }
3130
3131 void
3132 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3133 {
3134         bool in_command = false;
3135
3136         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3137
3138                 if (!(*r)->region()->covers (where)) {
3139                         continue;
3140                 }
3141
3142                 boost::shared_ptr<Region> region ((*r)->region());
3143
3144                 if (!in_command) {
3145                         begin_reversible_command (_("set sync point"));
3146                         in_command = true;
3147                 }
3148
3149                 XMLNode &before = region->playlist()->get_state();
3150                 region->set_sync_position (where);
3151                 XMLNode &after = region->playlist()->get_state();
3152                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3153         }
3154
3155         if (in_command) {
3156                 commit_reversible_command ();
3157         }
3158 }
3159
3160 /** Remove the sync positions of the selection */
3161 void
3162 Editor::remove_region_sync ()
3163 {
3164         RegionSelection rs;
3165
3166         get_regions_for_action (rs);
3167
3168         if (rs.empty()) {
3169                 return;
3170         }
3171
3172         begin_reversible_command (_("remove sync"));
3173         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3174
3175                 XMLNode &before = (*i)->region()->playlist()->get_state();
3176                 (*i)->region()->clear_sync_position ();
3177                 XMLNode &after = (*i)->region()->playlist()->get_state();
3178                 session->add_command(new MementoCommand<Playlist>(*((*i)->region()->playlist()), &before, &after));
3179         }
3180         commit_reversible_command ();
3181 }
3182
3183 void
3184 Editor::naturalize ()
3185 {
3186         RegionSelection rs;
3187
3188         get_regions_for_action (rs);
3189
3190         if (rs.empty()) {
3191                 return;
3192         }
3193
3194         begin_reversible_command (_("naturalize"));
3195         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3196                 XMLNode &before = (*i)->region()->get_state();
3197                 (*i)->region()->move_to_natural_position (this);
3198                 XMLNode &after = (*i)->region()->get_state();
3199                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3200         }
3201         commit_reversible_command ();
3202 }
3203
3204 void
3205 Editor::align (RegionPoint what)
3206 {
3207         RegionSelection rs;
3208
3209         get_regions_for_action (rs);
3210         nframes64_t where = get_preferred_edit_position();
3211
3212         if (!rs.empty()) {
3213                 align_selection (what, where, rs);
3214         } else {
3215
3216                 RegionSelection rs;
3217                 get_regions_at (rs, where, selection->tracks);
3218                 align_selection (what, where, rs);
3219         }
3220 }
3221
3222 void
3223 Editor::align_relative (RegionPoint what)
3224 {
3225         nframes64_t where = get_preferred_edit_position();
3226         RegionSelection rs;
3227
3228         get_regions_for_action (rs);
3229
3230         if (!rs.empty()) {
3231                 align_selection_relative (what, where, rs);
3232         }
3233 }
3234
3235 struct RegionSortByTime {
3236     bool operator() (const RegionView* a, const RegionView* b) {
3237             return a->region()->position() < b->region()->position();
3238     }
3239 };
3240
3241 void
3242 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3243 {
3244         if (rs.empty()) {
3245                 return;
3246         }
3247
3248         nframes64_t distance = 0;
3249         nframes64_t pos = 0;
3250         int dir = 1;
3251
3252         list<RegionView*> sorted;
3253         rs.by_position (sorted);
3254
3255         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3256
3257         switch (point) {
3258         case Start:
3259                 pos = position;
3260                 if (position > r->position()) {
3261                         distance = position - r->position();
3262                 } else {
3263                         distance = r->position() - position;
3264                         dir = -1;
3265                 }
3266                 break;
3267
3268         case End:
3269                 if (position > r->last_frame()) {
3270                         distance = position - r->last_frame();
3271                         pos = r->position() + distance;
3272                 } else {
3273                         distance = r->last_frame() - position;
3274                         pos = r->position() - distance;
3275                         dir = -1;
3276                 }
3277                 break;
3278
3279         case SyncPoint:
3280                 pos = r->adjust_to_sync (position);
3281                 if (pos > r->position()) {
3282                         distance = pos - r->position();
3283                 } else {
3284                         distance = r->position() - pos;
3285                         dir = -1;
3286                 }
3287                 break;
3288         }
3289
3290         if (pos == r->position()) {
3291                 return;
3292         }
3293
3294         begin_reversible_command (_("align selection (relative)"));
3295
3296         /* move first one specially */
3297
3298         XMLNode &before = r->playlist()->get_state();
3299         r->set_position (pos, this);
3300         XMLNode &after = r->playlist()->get_state();
3301         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3302
3303         /* move rest by the same amount */
3304
3305         sorted.pop_front();
3306
3307         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3308
3309                 boost::shared_ptr<Region> region ((*i)->region());
3310
3311                 XMLNode &before = region->playlist()->get_state();
3312
3313                 if (dir > 0) {
3314                         region->set_position (region->position() + distance, this);
3315                 } else {
3316                         region->set_position (region->position() - distance, this);
3317                 }
3318
3319                 XMLNode &after = region->playlist()->get_state();
3320                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3321
3322         }
3323
3324         commit_reversible_command ();
3325 }
3326
3327 void
3328 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3329 {
3330         if (rs.empty()) {
3331                 return;
3332         }
3333
3334         begin_reversible_command (_("align selection"));
3335
3336         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3337                 align_region_internal ((*i)->region(), point, position);
3338         }
3339
3340         commit_reversible_command ();
3341 }
3342
3343 void
3344 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3345 {
3346         begin_reversible_command (_("align region"));
3347         align_region_internal (region, point, position);
3348         commit_reversible_command ();
3349 }
3350
3351 void
3352 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3353 {
3354         XMLNode &before = region->playlist()->get_state();
3355
3356         switch (point) {
3357         case SyncPoint:
3358                 region->set_position (region->adjust_to_sync (position), this);
3359                 break;
3360
3361         case End:
3362                 if (position > region->length()) {
3363                         region->set_position (position - region->length(), this);
3364                 }
3365                 break;
3366
3367         case Start:
3368                 region->set_position (position, this);
3369                 break;
3370         }
3371
3372         XMLNode &after = region->playlist()->get_state();
3373         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3374 }
3375
3376 void
3377 Editor::trim_region_front ()
3378 {
3379         trim_region (true);
3380 }
3381
3382 void
3383 Editor::trim_region_back ()
3384 {
3385         trim_region (false);
3386 }
3387
3388 void
3389 Editor::trim_region (bool front)
3390 {
3391         nframes64_t where = get_preferred_edit_position();
3392         RegionSelection rs;
3393
3394         get_regions_for_action (rs);
3395
3396         if (rs.empty()) {
3397                 return;
3398         }
3399
3400         begin_reversible_command (front ? _("trim front") : _("trim back"));
3401
3402         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
3403                 if (!(*i)->region()->locked()) {
3404                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
3405                         XMLNode &before = pl->get_state();
3406                         if (front) {
3407                                 (*i)->region()->trim_front (where, this);
3408                         } else {
3409                                 (*i)->region()->trim_end (where, this);
3410                         }
3411                         XMLNode &after = pl->get_state();
3412                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
3413                 }
3414         }
3415
3416         commit_reversible_command ();
3417 }
3418
3419 /** Trim the end of the selected regions to the position of the edit cursor */
3420 void
3421 Editor::trim_region_to_loop ()
3422 {
3423         Location* loc = session->locations()->auto_loop_location();
3424         if (!loc) {
3425                 return;
3426         }
3427         trim_region_to_location (*loc, _("trim to loop"));
3428 }
3429
3430 void
3431 Editor::trim_region_to_punch ()
3432 {
3433         Location* loc = session->locations()->auto_punch_location();
3434         if (!loc) {
3435                 return;
3436         }
3437         trim_region_to_location (*loc, _("trim to punch"));
3438 }
3439 void
3440 Editor::trim_region_to_location (const Location& loc, const char* str)
3441 {
3442         RegionSelection rs;
3443
3444         get_regions_for_action (rs);
3445
3446         begin_reversible_command (str);
3447
3448         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3449                 RegionView* rv = (*x);
3450
3451                 /* require region to span proposed trim */
3452                 switch (rv->region()->coverage (loc.start(), loc.end())) {
3453                 case OverlapInternal:
3454                         break;
3455                 default:
3456                         continue;
3457                 }
3458
3459                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3460                 if (!tav) {
3461                         return;
3462                 }
3463
3464                 float speed = 1.0;
3465                 nframes64_t start;
3466                 nframes64_t end;
3467
3468                 if (tav->get_diskstream() != 0) {
3469                         speed = tav->get_diskstream()->speed();
3470                 }
3471
3472                 start = session_frame_to_track_frame (loc.start(), speed);
3473                 end = session_frame_to_track_frame (loc.end(), speed);
3474
3475                 XMLNode &before = rv->region()->playlist()->get_state();
3476                 rv->region()->trim_to (start, (end - start), this);
3477                 XMLNode &after = rv->region()->playlist()->get_state();
3478                 session->add_command(new MementoCommand<Playlist>(
3479                                 *(rv->region()->playlist()), &before, &after));
3480         }
3481
3482         commit_reversible_command ();
3483 }
3484
3485 void
3486 Editor::trim_region_to_edit_point ()
3487 {
3488         RegionSelection rs;
3489
3490         get_regions_for_action (rs);
3491
3492         nframes64_t where = get_preferred_edit_position();
3493
3494         begin_reversible_command (_("trim region start to edit point"));
3495
3496         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3497                 RegionView* rv = (*x);
3498
3499                 /* require region to cover trim */
3500                 if (!rv->region()->covers (where)) {
3501                         continue;
3502                 }
3503
3504                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3505                 if (!tav) {
3506                         return;
3507                 }
3508
3509                 float speed = 1.0;
3510
3511                 if (tav->get_diskstream() != 0) {
3512                         speed = tav->get_diskstream()->speed();
3513                 }
3514
3515                 XMLNode &before = rv->region()->playlist()->get_state();
3516                 rv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3517                 XMLNode &after = rv->region()->playlist()->get_state();
3518                 session->add_command(new MementoCommand<Playlist>(
3519                                 *(rv->region()->playlist()), &before, &after));
3520         }
3521
3522         commit_reversible_command ();
3523 }
3524
3525 void
3526 Editor::trim_region_from_edit_point ()
3527 {
3528         RegionSelection rs;
3529
3530         get_regions_for_action (rs);
3531
3532         nframes64_t where = get_preferred_edit_position();
3533
3534         begin_reversible_command (_("trim region end to edit point"));
3535
3536         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3537                 RegionView* rv = (*x);
3538
3539                 /* require region to cover trim */
3540                 if (!rv->region()->covers (where)) {
3541                         continue;
3542                 }
3543
3544                 RouteTimeAxisView* tav = dynamic_cast<RouteTimeAxisView*> (&rv->get_time_axis_view());
3545                 if (!tav) {
3546                         return;
3547                 }
3548
3549                 float speed = 1.0;
3550
3551                 if (tav->get_diskstream() != 0) {
3552                         speed = tav->get_diskstream()->speed();
3553                 }
3554
3555                 XMLNode &before = rv->region()->playlist()->get_state();
3556                 rv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3557                 XMLNode &after = rv->region()->playlist()->get_state();
3558                 session->add_command(new MementoCommand<Playlist>(
3559                                 *(rv->region()->playlist()), &before, &after));
3560         }
3561
3562         commit_reversible_command ();
3563 }
3564
3565 void
3566 Editor::trim_region_to_previous_region_end ()
3567 {
3568         return trim_to_region(false);
3569 }
3570
3571 void
3572 Editor::trim_region_to_next_region_start ()
3573 {
3574         return trim_to_region(true);
3575 }
3576
3577 void
3578 Editor::trim_to_region(bool forward)
3579 {
3580         RegionSelection rs;
3581
3582         get_regions_for_action (rs);
3583
3584         begin_reversible_command (_("trim to region"));
3585
3586         boost::shared_ptr<Region> next_region;
3587
3588         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3589
3590                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3591
3592                 if (!arv) {
3593                         continue;
3594                 }
3595
3596                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3597
3598                 if (!atav) {
3599                         return;
3600                 }
3601
3602                 float speed = 1.0;
3603
3604                 if (atav->get_diskstream() != 0) {
3605                         speed = atav->get_diskstream()->speed();
3606                 }
3607
3608
3609                 boost::shared_ptr<Region> region = arv->region();
3610                 boost::shared_ptr<Playlist> playlist (region->playlist());
3611
3612                 XMLNode &before = playlist->get_state();
3613
3614                 if(forward){
3615
3616                     next_region = playlist->find_next_region (region->first_frame(), Start, 1);
3617
3618                     if(!next_region){
3619                         continue;
3620                     }
3621
3622                     region->trim_end((nframes64_t) (next_region->first_frame() * speed), this);
3623                     arv->region_changed (Change (LengthChanged));
3624                 }
3625                 else {
3626
3627                     next_region = playlist->find_next_region (region->first_frame(), Start, 0);
3628
3629                     if(!next_region){
3630                         continue;
3631                     }
3632
3633                     region->trim_front((nframes64_t) ((next_region->last_frame() + 1) * speed), this);
3634                     arv->region_changed (Change (LengthChanged|PositionChanged|StartChanged));
3635                 }
3636
3637                 XMLNode &after = playlist->get_state();
3638                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3639         }
3640
3641         commit_reversible_command ();
3642 }
3643
3644 void
3645 Editor::unfreeze_route ()
3646 {
3647         if (clicked_routeview == 0 || !clicked_routeview->is_track()) {
3648                 return;
3649         }
3650
3651         clicked_routeview->track()->unfreeze ();
3652 }
3653
3654 void*
3655 Editor::_freeze_thread (void* arg)
3656 {
3657         PBD::notify_gui_about_thread_creation (pthread_self(), X_("Freeze"));
3658         return static_cast<Editor*>(arg)->freeze_thread ();
3659 }
3660
3661 void*
3662 Editor::freeze_thread ()
3663 {
3664         clicked_routeview->audio_track()->freeze (*current_interthread_info);
3665         current_interthread_info->done = true;
3666         return 0;
3667 }
3668
3669 gint
3670 Editor::freeze_progress_timeout (void */*arg*/)
3671 {
3672         interthread_progress_bar.set_fraction (current_interthread_info->progress);
3673         return !(current_interthread_info->done || current_interthread_info->cancel);
3674 }
3675
3676 void
3677 Editor::freeze_route ()
3678 {
3679         if (clicked_routeview == 0 || !clicked_routeview->is_audio_track()) {
3680                 return;
3681         }
3682
3683         InterThreadInfo itt;
3684
3685         if (interthread_progress_window == 0) {
3686                 build_interthread_progress_window ();
3687         }
3688
3689         interthread_progress_window->set_title (_("Freeze"));
3690         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3691         interthread_progress_window->show_all ();
3692         interthread_progress_bar.set_fraction (0.0f);
3693         interthread_progress_label.set_text ("");
3694         interthread_cancel_label.set_text (_("Cancel Freeze"));
3695         current_interthread_info = &itt;
3696
3697         interthread_progress_connection =
3698           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3699
3700         itt.done = false;
3701         itt.cancel = false;
3702         itt.progress = 0.0f;
3703
3704         pthread_attr_t attr;
3705         pthread_attr_init(&attr);
3706         pthread_attr_setstacksize(&attr, 500000);
3707
3708         pthread_create_and_store (X_("freezer"), &itt.thread, &attr, _freeze_thread, this);
3709
3710         pthread_attr_destroy(&attr);
3711
3712         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3713
3714         while (!itt.done && !itt.cancel) {
3715                 gtk_main_iteration ();
3716         }
3717
3718         interthread_progress_connection.disconnect ();
3719         interthread_progress_window->hide_all ();
3720         current_interthread_info = 0;
3721         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3722 }
3723
3724 void
3725 Editor::bounce_range_selection (bool replace, bool enable_processing)
3726 {
3727         if (selection->time.empty()) {
3728                 return;
3729         }
3730
3731         TrackSelection views = selection->tracks;
3732
3733         nframes64_t start = selection->time[clicked_selection].start;
3734         nframes64_t end = selection->time[clicked_selection].end;
3735         nframes64_t cnt = end - start + 1;
3736
3737         begin_reversible_command (_("bounce range"));
3738
3739         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3740
3741                 RouteTimeAxisView* rtv;
3742
3743                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*i)) == 0) {
3744                         continue;
3745                 }
3746
3747                 boost::shared_ptr<Playlist> playlist;
3748
3749                 if ((playlist = rtv->playlist()) == 0) {
3750                         return;
3751                 }
3752
3753                 InterThreadInfo itt;
3754
3755                 itt.done = false;
3756                 itt.cancel = false;
3757                 itt.progress = false;
3758
3759                 XMLNode &before = playlist->get_state();
3760                 boost::shared_ptr<Region> r = rtv->track()->bounce_range (start, start+cnt, itt, enable_processing);
3761
3762                 if (replace) {
3763                         list<AudioRange> ranges;
3764                         ranges.push_back (AudioRange (start, start+cnt, 0));
3765                         playlist->cut (ranges); // discard result
3766                         playlist->add_region (r, start);
3767                 }
3768
3769                 XMLNode &after = playlist->get_state();
3770                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3771         }
3772
3773         commit_reversible_command ();
3774 }
3775
3776 /** Cut selected regions, automation points or a time range */
3777 void
3778 Editor::cut ()
3779 {
3780         cut_copy (Cut);
3781 }
3782
3783 /** Copy selected regions, automation points or a time range */
3784 void
3785 Editor::copy ()
3786 {
3787         cut_copy (Copy);
3788 }
3789
3790
3791 /** @return true if a Cut, Copy or Clear is possible */
3792 bool
3793 Editor::can_cut_copy () const
3794 {
3795         switch (current_mouse_mode()) {
3796
3797         case MouseObject:
3798                 if (!selection->regions.empty() || !selection->points.empty()) {
3799                         return true;
3800                 }
3801                 break;
3802
3803         case MouseRange:
3804                 if (!selection->time.empty()) {
3805                         return true;
3806                 }
3807                 break;
3808
3809         default:
3810                 break;
3811         }
3812
3813         return false;
3814 }
3815
3816
3817 /** Cut, copy or clear selected regions, automation points or a time range.
3818  * @param op Operation (Cut, Copy or Clear)
3819  */
3820 void
3821 Editor::cut_copy (CutCopyOp op)
3822 {
3823         /* only cancel selection if cut/copy is successful.*/
3824
3825         string opname;
3826
3827         switch (op) {
3828         case Cut:
3829                 opname = _("cut");
3830                 break;
3831         case Copy:
3832                 opname = _("copy");
3833                 break;
3834         case Clear:
3835                 opname = _("clear");
3836                 break;
3837         }
3838
3839         /* if we're deleting something, and the mouse is still pressed,
3840            the thing we started a drag for will be gone when we release
3841            the mouse button(s). avoid this. see part 2 at the end of
3842            this function.
3843         */
3844
3845         if (op == Cut || op == Clear) {
3846                 if (_drag) {
3847                         _drag->item()->ungrab (0);
3848                         delete _drag;
3849                         _drag = 0;
3850                 }
3851         }
3852
3853         cut_buffer->clear ();
3854
3855         if (entered_marker) {
3856
3857                 /* cut/delete op while pointing at a marker */
3858
3859                 bool ignored;
3860                 Location* loc = find_location_from_marker (entered_marker, ignored);
3861
3862                 if (session && loc) {
3863                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3864                 }
3865
3866                 break_drag ();
3867                 delete _drag;
3868                 _drag = 0;
3869
3870                 return;
3871         }
3872
3873         if (internal_editing()) {
3874
3875                 switch (current_mouse_mode()) {
3876                 case MouseObject:
3877                 case MouseRange:
3878                         cut_copy_midi (op);
3879                         break;
3880                 default:
3881                         break;
3882                 }
3883
3884         } else {
3885
3886                 RegionSelection rs;
3887
3888                 /* we only want to cut regions if some are selected */
3889
3890                 if (!selection->regions.empty()) {
3891                         get_regions_for_action (rs, false, false);
3892                 }
3893
3894                 switch (current_mouse_mode()) {
3895                 case MouseObject:
3896                         if (!rs.empty() || !selection->points.empty()) {
3897
3898                                 begin_reversible_command (opname + _(" objects"));
3899
3900                                 if (!rs.empty()) {
3901                                         cut_copy_regions (op, rs);
3902
3903                                         if (op == Cut) {
3904                                                 selection->clear_regions ();
3905                                         }
3906                                 }
3907
3908                                 if (!selection->points.empty()) {
3909                                         cut_copy_points (op);
3910
3911                                         if (op == Cut) {
3912                                                 selection->clear_points ();
3913                                         }
3914                                 }
3915
3916                                 commit_reversible_command ();
3917                                 break; // terminate case statement here
3918                         }
3919                         if (!selection->time.empty()) {
3920                                 /* don't cause suprises */
3921                                 break;
3922                         }
3923                         // fall thru if there was nothing selected
3924
3925                 case MouseRange:
3926                         if (selection->time.empty()) {
3927                                 nframes64_t start, end;
3928                                 if (!get_edit_op_range (start, end)) {
3929                                         return;
3930                                 }
3931                                 selection->set ((TimeAxisView*) 0, start, end);
3932                         }
3933
3934                         begin_reversible_command (opname + _(" range"));
3935                         cut_copy_ranges (op);
3936                         commit_reversible_command ();
3937
3938                         if (op == Cut) {
3939                                 selection->clear_time ();
3940                         }
3941
3942                         break;
3943
3944                 default:
3945                         break;
3946                 }
3947         }
3948
3949         if (op == Cut || op == Clear) {
3950                 break_drag ();
3951                 delete _drag;
3952                 _drag = 0;
3953         }
3954 }
3955
3956 /** Cut, copy or clear selected automation points.
3957  * @param op Operation (Cut, Copy or Clear)
3958  */
3959 void
3960 Editor::cut_copy_points (CutCopyOp op)
3961 {
3962         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3963
3964                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3965
3966                 if (atv) {
3967                         atv->cut_copy_clear_objects (selection->points, op);
3968                 }
3969         }
3970 }
3971
3972 /** Cut, copy or clear selected automation points.
3973  * @param op Operation (Cut, Copy or Clear)
3974  */
3975 void
3976 Editor::cut_copy_midi (CutCopyOp op)
3977 {
3978         for (MidiRegionSelection::iterator i = selection->midi_regions.begin(); i != selection->midi_regions.end(); ++i) {
3979                 MidiRegionView* mrv = *i;
3980                 mrv->cut_copy_clear (op);
3981         }
3982 }
3983
3984 struct PlaylistState {
3985     boost::shared_ptr<Playlist> playlist;
3986     XMLNode*  before;
3987 };
3988
3989 struct lt_playlist {
3990     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3991             return a.playlist < b.playlist;
3992     }
3993 };
3994
3995 struct PlaylistMapping {
3996     TimeAxisView* tv;
3997     boost::shared_ptr<Playlist> pl;
3998
3999     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
4000 };
4001
4002 /** Remove `clicked_regionview' */
4003 void
4004 Editor::remove_clicked_region ()
4005 {
4006         if (clicked_routeview == 0 || clicked_regionview == 0) {
4007                 return;
4008         }
4009
4010         boost::shared_ptr<Playlist> playlist = clicked_routeview->playlist();
4011
4012         begin_reversible_command (_("remove region"));
4013         XMLNode &before = playlist->get_state();
4014         playlist->remove_region (clicked_regionview->region());
4015         XMLNode &after = playlist->get_state();
4016         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4017         commit_reversible_command ();
4018 }
4019
4020
4021 /** Remove the selected regions */
4022 void
4023 Editor::remove_selected_regions ()
4024 {
4025         RegionSelection rs;
4026         get_regions_for_action (rs);
4027
4028         if (!session) {
4029                 return;
4030         }
4031
4032         if (rs.empty()) {
4033                 return;
4034         }
4035
4036         begin_reversible_command (_("remove region"));
4037
4038         list<boost::shared_ptr<Region> > regions_to_remove;
4039
4040         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4041                 // we can't just remove the region(s) in this loop because
4042                 // this removes them from the RegionSelection, and they thus
4043                 // disappear from underneath the iterator, and the ++i above
4044                 // SEGVs in a puzzling fashion.
4045
4046                 // so, first iterate over the regions to be removed from rs and
4047                 // add them to the regions_to_remove list, and then
4048                 // iterate over the list to actually remove them.
4049
4050                 regions_to_remove.push_back ((*i)->region());
4051         }
4052
4053         vector<PlaylistState> playlists;
4054
4055         for (list<boost::shared_ptr<Region> >::iterator rl = regions_to_remove.begin(); rl != regions_to_remove.end(); ++rl) {
4056
4057                 boost::shared_ptr<Playlist> playlist = (*rl)->playlist();
4058
4059                 if (!playlist) {
4060                         // is this check necessary?
4061                         continue;
4062                 }
4063
4064                 vector<PlaylistState>::iterator i;
4065
4066                 //only take state if this is a new playlist.
4067                 for (i = playlists.begin(); i != playlists.end(); ++i) {
4068                         if ((*i).playlist == playlist) {
4069                                 break;
4070                         }
4071                 }
4072
4073                 if (i == playlists.end()) {
4074
4075                         PlaylistState before;
4076                         before.playlist = playlist;
4077                         before.before = &playlist->get_state();
4078
4079                         playlist->freeze ();
4080                         playlists.push_back(before);
4081                 }
4082
4083                 playlist->remove_region (*rl);
4084         }
4085
4086         vector<PlaylistState>::iterator pl;
4087
4088         for (pl = playlists.begin(); pl != playlists.end(); ++pl) {
4089                 (*pl).playlist->thaw ();
4090                 session->add_command(new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4091         }
4092
4093         commit_reversible_command ();
4094 }
4095
4096 /** Cut, copy or clear selected regions.
4097  * @param op Operation (Cut, Copy or Clear)
4098  */
4099 void
4100 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
4101 {
4102         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
4103            a map when we want ordered access to both elements. i think.
4104         */
4105
4106         vector<PlaylistMapping> pmap;
4107
4108         nframes64_t first_position = max_frames;
4109
4110         set<PlaylistState, lt_playlist> freezelist;
4111         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
4112
4113         /* get ordering correct before we cut/copy */
4114
4115         rs.sort_by_position_and_track ();
4116
4117         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4118
4119                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
4120
4121                 if (op == Cut || op == Clear) {
4122                         boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4123
4124                         if (pl) {
4125                                 set<PlaylistState, lt_playlist>::iterator fl;
4126
4127                                 //only take state if this is a new playlist.
4128                                 for (fl = freezelist.begin(); fl != freezelist.end(); ++fl) {
4129                                         if ((*fl).playlist == pl) {
4130                                                 break;
4131                                         }
4132                                 }
4133
4134                                 if (fl == freezelist.end()) {
4135                                         PlaylistState before;
4136                                         before.playlist = pl;
4137                                         before.before = &pl->get_state();
4138                                         pl->freeze ();
4139                                         insert_result = freezelist.insert (before);
4140                                 }
4141                         }
4142                 }
4143
4144                 TimeAxisView* tv = &(*x)->get_trackview();
4145                 vector<PlaylistMapping>::iterator z;
4146
4147                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4148                         if ((*z).tv == tv) {
4149                                 break;
4150                         }
4151                 }
4152
4153                 if (z == pmap.end()) {
4154                         pmap.push_back (PlaylistMapping (tv));
4155                 }
4156         }
4157
4158         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
4159
4160                 boost::shared_ptr<Playlist> pl = (*x)->region()->playlist();
4161
4162                 if (!pl) {
4163                         /* impossible, but this handles it for the future */
4164                         continue;
4165                 }
4166
4167                 TimeAxisView& tv = (*x)->get_trackview();
4168                 boost::shared_ptr<Playlist> npl;
4169                 RegionSelection::iterator tmp;
4170
4171                 tmp = x;
4172                 ++tmp;
4173
4174                 vector<PlaylistMapping>::iterator z;
4175
4176                 for (z = pmap.begin(); z != pmap.end(); ++z) {
4177                         if ((*z).tv == &tv) {
4178                                 break;
4179                         }
4180                 }
4181
4182                 assert (z != pmap.end());
4183
4184                 if (!(*z).pl) {
4185                         npl = PlaylistFactory::create (pl->data_type(), *session, "cutlist", true);
4186                         npl->freeze();
4187                         (*z).pl = npl;
4188                 } else {
4189                         npl = (*z).pl;
4190                 }
4191
4192                 boost::shared_ptr<Region> r = (*x)->region();
4193                 boost::shared_ptr<Region> _xx;
4194
4195                 assert (r != 0);
4196
4197                 switch (op) {
4198                 case Cut:
4199                         _xx = RegionFactory::create (r);
4200                         npl->add_region (_xx, r->position() - first_position);
4201                         pl->remove_region (r);
4202                         break;
4203
4204                 case Copy:
4205                         /* copy region before adding, so we're not putting same object into two different playlists */
4206                         npl->add_region (RegionFactory::create (r), r->position() - first_position);
4207                         break;
4208
4209                 case Clear:
4210                         pl->remove_region (r);
4211                         break;
4212                 }
4213
4214                 x = tmp;
4215         }
4216
4217         list<boost::shared_ptr<Playlist> > foo;
4218
4219         /* the pmap is in the same order as the tracks in which selected regions occured */
4220
4221         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
4222                 (*i).pl->thaw();
4223                 foo.push_back ((*i).pl);
4224         }
4225
4226
4227         if (!foo.empty()) {
4228                 cut_buffer->set (foo);
4229         }
4230
4231         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
4232                 (*pl).playlist->thaw ();
4233                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
4234         }
4235 }
4236
4237 void
4238 Editor::cut_copy_ranges (CutCopyOp op)
4239 {
4240         TrackSelection* ts;
4241         TrackSelection entered;
4242
4243         if (selection->tracks.empty()) {
4244                 if (!entered_track) {
4245                         return;
4246                 }
4247                 entered.push_back (entered_track);
4248                 ts = &entered;
4249         } else {
4250                 ts = &selection->tracks;
4251         }
4252
4253         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
4254                 (*i)->cut_copy_clear (*selection, op);
4255         }
4256 }
4257
4258 void
4259 Editor::paste (float times)
4260 {
4261         paste_internal (get_preferred_edit_position(), times);
4262 }
4263
4264 void
4265 Editor::mouse_paste ()
4266 {
4267         nframes64_t where;
4268         bool ignored;
4269
4270         if (!mouse_frame (where, ignored)) {
4271                 return;
4272         }
4273
4274         snap_to (where);
4275         paste_internal (where, 1);
4276 }
4277
4278 void
4279 Editor::paste_internal (nframes64_t position, float times)
4280 {
4281         bool commit = false;
4282
4283         if (internal_editing()) {
4284                 if (cut_buffer->midi_notes.empty()) {
4285                         return;
4286                 }
4287         } else {
4288                 if (cut_buffer->empty()) {
4289                         return;
4290                 }
4291         }
4292
4293         if (position == max_frames) {
4294                 position = get_preferred_edit_position();
4295         }
4296
4297         begin_reversible_command (_("paste"));
4298
4299         TrackSelection ts;
4300         TrackSelection::iterator i;
4301         size_t nth;
4302
4303         /* get everything in the correct order */
4304
4305         if (!selection->tracks.empty()) {
4306                 sort_track_selection ();
4307                 ts = selection->tracks;
4308         } else if (entered_track) {
4309                 ts.push_back (entered_track);
4310         }
4311
4312         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4313
4314                 /* undo/redo is handled by individual tracks/regions */
4315
4316                 if (internal_editing()) {
4317
4318                         RegionSelection rs;
4319                         RegionSelection::iterator r;
4320                         MidiNoteSelection::iterator cb;
4321
4322                         get_regions_at (rs, position, ts);
4323
4324                         for (cb = cut_buffer->midi_notes.begin(), r = rs.begin();
4325                              cb != cut_buffer->midi_notes.end() && r != rs.end(); ++r) {
4326                                 MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (*r);
4327                                 if (mrv) {
4328                                         mrv->paste (position, times, **cb);
4329                                         ++cb;
4330                                 }
4331                         }
4332
4333                 } else {
4334
4335                         if ((*i)->paste (position, times, *cut_buffer, nth)) {
4336                                 commit = true;
4337                         }
4338                 }
4339         }
4340
4341         if (commit) {
4342                 commit_reversible_command ();
4343         }
4344 }
4345
4346 void
4347 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4348 {
4349         boost::shared_ptr<Playlist> playlist;
4350         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4351         RegionSelection foo;
4352
4353         begin_reversible_command (_("duplicate region"));
4354
4355         selection->clear_regions ();
4356
4357         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4358
4359                 boost::shared_ptr<Region> r ((*i)->region());
4360
4361                 TimeAxisView& tv = (*i)->get_time_axis_view();
4362                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4363                 latest_regionviews.clear ();
4364                 sigc::connection c = rtv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4365
4366                 playlist = (*i)->region()->playlist();
4367                 XMLNode &before = playlist->get_state();
4368                 playlist->duplicate (r, r->last_frame(), times);
4369                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4370
4371                 c.disconnect ();
4372
4373                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4374         }
4375
4376         commit_reversible_command ();
4377
4378         if (!foo.empty()) {
4379                 selection->set (foo);
4380         }
4381 }
4382
4383 void
4384 Editor::duplicate_selection (float times)
4385 {
4386         if (selection->time.empty() || selection->tracks.empty()) {
4387                 return;
4388         }
4389
4390         boost::shared_ptr<Playlist> playlist;
4391         vector<boost::shared_ptr<Region> > new_regions;
4392         vector<boost::shared_ptr<Region> >::iterator ri;
4393
4394         create_region_from_selection (new_regions);
4395
4396         if (new_regions.empty()) {
4397                 return;
4398         }
4399
4400         begin_reversible_command (_("duplicate selection"));
4401
4402         ri = new_regions.begin();
4403
4404         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4405                 if ((playlist = (*i)->playlist()) == 0) {
4406                         continue;
4407                 }
4408                 XMLNode &before = playlist->get_state();
4409                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4410                 XMLNode &after = playlist->get_state();
4411                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4412
4413                 ++ri;
4414                 if (ri == new_regions.end()) {
4415                         --ri;
4416                 }
4417         }
4418
4419         commit_reversible_command ();
4420 }
4421
4422 void
4423 Editor::reset_point_selection ()
4424 {
4425         /* reset all selected points to the relevant default value */
4426
4427         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4428
4429                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4430
4431                 if (atv) {
4432                         atv->reset_objects (selection->points);
4433                 }
4434         }
4435 }
4436
4437 void
4438 Editor::center_playhead ()
4439 {
4440         float page = _canvas_width * frames_per_unit;
4441         center_screen_internal (playhead_cursor->current_frame, page);
4442 }
4443
4444 void
4445 Editor::center_edit_point ()
4446 {
4447         float page = _canvas_width * frames_per_unit;
4448         center_screen_internal (get_preferred_edit_position(), page);
4449 }
4450
4451 void
4452 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4453 {
4454         begin_reversible_command (_("clear playlist"));
4455         XMLNode &before = playlist->get_state();
4456         playlist->clear ();
4457         XMLNode &after = playlist->get_state();
4458         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4459         commit_reversible_command ();
4460 }
4461
4462 void
4463 Editor::nudge_track (bool use_edit, bool forwards)
4464 {
4465         boost::shared_ptr<Playlist> playlist;
4466         nframes64_t distance;
4467         nframes64_t next_distance;
4468         nframes64_t start;
4469
4470         if (use_edit) {
4471                 start = get_preferred_edit_position();
4472         } else {
4473                 start = 0;
4474         }
4475
4476         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4477                 return;
4478         }
4479
4480         if (selection->tracks.empty()) {
4481                 return;
4482         }
4483
4484         begin_reversible_command (_("nudge track"));
4485
4486         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4487
4488                 if ((playlist = (*i)->playlist()) == 0) {
4489                         continue;
4490                 }
4491
4492                 XMLNode &before = playlist->get_state();
4493                 playlist->nudge_after (start, distance, forwards);
4494                 XMLNode &after = playlist->get_state();
4495                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4496         }
4497
4498         commit_reversible_command ();
4499 }
4500
4501 void
4502 Editor::remove_last_capture ()
4503 {
4504         vector<string> choices;
4505         string prompt;
4506
4507         if (!session) {
4508                 return;
4509         }
4510
4511         if (Config->get_verify_remove_last_capture()) {
4512                 prompt  = _("Do you really want to destroy the last capture?"
4513                             "\n(This is destructive and cannot be undone)");
4514
4515                 choices.push_back (_("No, do nothing."));
4516                 choices.push_back (_("Yes, destroy it."));
4517
4518                 Gtkmm2ext::Choice prompter (prompt, choices);
4519
4520                 if (prompter.run () == 1) {
4521                         session->remove_last_capture ();
4522                 }
4523
4524         } else {
4525                 session->remove_last_capture();
4526         }
4527 }
4528
4529 void
4530 Editor::normalize_region ()
4531 {
4532         if (!session) {
4533                 return;
4534         }
4535
4536         RegionSelection rs;
4537         get_regions_for_action (rs);
4538
4539         if (rs.empty()) {
4540                 return;
4541         }
4542
4543         Dialog dialog (rs.size() > 1 ? _("Normalize regions") : _("Normalize region"));
4544         HBox hbox;
4545         hbox.pack_start (*manage (new Label (_("Normalize to:"))));
4546         SpinButton spin (0.2, 2);
4547         spin.set_range (-112, 0);
4548         spin.set_increments (0.1, 1);
4549         spin.set_value (0);
4550         hbox.pack_start (spin);
4551         spin.set_value (_last_normalization_value);
4552         hbox.pack_start (*manage (new Label (_("dbFS"))));
4553         hbox.show_all ();
4554         dialog.get_vbox()->pack_start (hbox);
4555         dialog.add_button (Stock::CANCEL, RESPONSE_CANCEL);
4556         dialog.add_button (_("Normalize"), RESPONSE_ACCEPT);
4557
4558         if (dialog.run () == RESPONSE_CANCEL) {
4559                 return;
4560         }
4561
4562         begin_reversible_command (_("normalize"));
4563
4564         track_canvas->get_window()->set_cursor (*wait_cursor);
4565         gdk_flush ();
4566
4567         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4568                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4569                 if (!arv)
4570                         continue;
4571                 XMLNode &before = arv->region()->get_state();
4572                 arv->audio_region()->normalize_to (spin.get_value());
4573                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4574         }
4575
4576         commit_reversible_command ();
4577         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4578
4579         _last_normalization_value = spin.get_value ();
4580 }
4581
4582
4583 void
4584 Editor::reset_region_scale_amplitude ()
4585 {
4586         if (!session) {
4587                 return;
4588         }
4589
4590         RegionSelection rs;
4591
4592         get_regions_for_action (rs);
4593
4594         if (rs.empty()) {
4595                 return;
4596         }
4597
4598         begin_reversible_command ("reset gain");
4599
4600         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4601                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4602                 if (!arv)
4603                         continue;
4604                 XMLNode &before = arv->region()->get_state();
4605                 arv->audio_region()->set_scale_amplitude (1.0f);
4606                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4607         }
4608
4609         commit_reversible_command ();
4610 }
4611
4612 void
4613 Editor::adjust_region_scale_amplitude (bool up)
4614 {
4615         if (!session) {
4616                 return;
4617         }
4618
4619         RegionSelection rs;
4620
4621         get_regions_for_action (rs);
4622
4623         if (rs.empty()) {
4624                 return;
4625         }
4626
4627         begin_reversible_command ("denormalize");
4628
4629         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4630                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4631                 if (!arv)
4632                         continue;
4633                 XMLNode &before = arv->region()->get_state();
4634
4635                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4636
4637                 if (up) {
4638                         fraction += 0.05;
4639                         fraction = min (fraction, 1.0);
4640                 } else {
4641                         fraction -= 0.05;
4642                         fraction = max (fraction, 0.0);
4643                 }
4644
4645                 if (!up && fraction <= 0) {
4646                         continue;
4647                 }
4648
4649                 fraction = slider_position_to_gain (fraction);
4650
4651                 if (up && fraction >= 2.0) {
4652                         continue;
4653                 }
4654
4655                 arv->audio_region()->set_scale_amplitude (fraction);
4656                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4657         }
4658
4659         commit_reversible_command ();
4660 }
4661
4662
4663 void
4664 Editor::reverse_region ()
4665 {
4666         if (!session) {
4667                 return;
4668         }
4669
4670         Reverse rev (*session);
4671         apply_filter (rev, _("reverse regions"));
4672 }
4673
4674 void
4675 Editor::strip_region_silence ()
4676 {
4677         if (!session) {
4678                 return;
4679         }
4680
4681         RegionSelection rs;
4682         get_regions_for_action (rs);
4683
4684         if (rs.empty()) {
4685                 return;
4686         }
4687
4688         std::list<boost::shared_ptr<AudioRegion> > ar;
4689
4690         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4691                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*> (*i);
4692                 if (arv) {
4693                         ar.push_back (arv->audio_region ());
4694                 }
4695         }
4696
4697         StripSilenceDialog d (ar);
4698         int const r = d.run ();
4699
4700         if (r == Gtk::RESPONSE_OK) {
4701                 StripSilence s (*session, d.threshold (), d.minimum_length (), d.fade_length ());
4702                 apply_filter (s, _("strip silence"));
4703         }
4704 }
4705
4706 Command*
4707 Editor::apply_midi_note_edit_op_to_region (MidiOperator& op, MidiRegionView& mrv)
4708 {
4709         Evoral::Sequence<Evoral::MusicalTime>::Notes selected;
4710         mrv.selection_as_notelist (selected);
4711
4712         vector<Evoral::Sequence<Evoral::MusicalTime>::Notes> v;
4713         v.push_back (selected);
4714
4715         return op (mrv.midi_region()->model(), v);
4716 }
4717
4718 void
4719 Editor::apply_midi_note_edit_op (MidiOperator& op)
4720 {
4721         RegionSelection rs;
4722         Command* cmd;
4723
4724         get_regions_for_action (rs);
4725
4726         if (rs.empty()) {
4727                 return;
4728         }
4729
4730         begin_reversible_command (op.name ());
4731
4732         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4733                 RegionSelection::iterator tmp = r;
4734                 ++tmp;
4735
4736                 MidiRegionView* const mrv = dynamic_cast<MidiRegionView*> (*r);
4737
4738                 if (mrv) {
4739                         cmd = apply_midi_note_edit_op_to_region (op, *mrv);
4740                         if (cmd) {
4741                                 (*cmd)();
4742                                 session->add_command (cmd);
4743                         }
4744                 }
4745
4746                 r = tmp;
4747         }
4748
4749         commit_reversible_command ();
4750         rs.clear ();
4751 }
4752
4753 void
4754 Editor::quantize_region ()
4755 {
4756         if (!session) {
4757                 return;
4758         }
4759
4760         QuantizeDialog* qd = new QuantizeDialog (*this);
4761
4762         qd->present ();
4763         const int r = qd->run ();
4764         qd->hide ();
4765
4766         if (r == Gtk::RESPONSE_OK) {
4767                 Quantize quant (*session, Plain,
4768                                 qd->snap_start(), qd->snap_end(),
4769                                 qd->start_grid_size(), qd->end_grid_size(),
4770                                 qd->strength(), qd->swing(), qd->threshold());
4771
4772                 apply_midi_note_edit_op (quant);
4773         }
4774 }
4775
4776 void
4777 Editor::apply_filter (Filter& filter, string command)
4778 {
4779         RegionSelection rs;
4780
4781         get_regions_for_action (rs);
4782
4783         if (rs.empty()) {
4784                 return;
4785         }
4786
4787         begin_reversible_command (command);
4788
4789         track_canvas->get_window()->set_cursor (*wait_cursor);
4790         gdk_flush ();
4791
4792         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4793                 RegionSelection::iterator tmp = r;
4794                 ++tmp;
4795
4796                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4797                 if (arv) {
4798                         boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4799
4800                         if (arv->audio_region()->apply (filter) == 0) {
4801
4802                                 XMLNode &before = playlist->get_state();
4803
4804                                 if (filter.results.empty ()) {
4805
4806                                         /* no regions returned; remove the old one */
4807                                         playlist->remove_region (arv->region ());
4808
4809                                 } else {
4810
4811                                         std::vector<boost::shared_ptr<Region> >::iterator res = filter.results.begin ();
4812
4813                                         /* first region replaces the old one */
4814                                         playlist->replace_region (arv->region(), *res, (*res)->position());
4815                                         ++res;
4816
4817                                         /* add the rest */
4818                                         while (res != filter.results.end()) {
4819                                                 playlist->add_region (*res, (*res)->position());
4820                                                 ++res;
4821                                         }
4822
4823                                 }
4824
4825                                 XMLNode &after = playlist->get_state();
4826                                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4827                         } else {
4828                                 goto out;
4829                         }
4830                 }
4831
4832                 r = tmp;
4833         }
4834
4835         commit_reversible_command ();
4836         rs.clear ();
4837
4838   out:
4839         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4840 }
4841
4842 void
4843 Editor::region_selection_op (void (Region::*pmf)(void))
4844 {
4845         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4846                 Region* region = (*i)->region().get();
4847                 (region->*pmf)();
4848         }
4849 }
4850
4851
4852 void
4853 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4854 {
4855         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4856                 Region* region = (*i)->region().get();
4857                 (region->*pmf)(arg);
4858         }
4859 }
4860
4861 void
4862 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4863 {
4864         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4865                 Region* region = (*i)->region().get();
4866                 (region->*pmf)(yn);
4867         }
4868 }
4869
4870 void
4871 Editor::external_edit_region ()
4872 {
4873         /* more to come */
4874 }
4875
4876 void
4877 Editor::brush (nframes64_t pos)
4878 {
4879         RegionSelection sel;
4880         RegionSelection rs;
4881
4882         get_regions_for_action (rs);
4883
4884         snap_to (pos);
4885
4886         if (rs.empty()) {
4887                 return;
4888         }
4889
4890         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4891                 mouse_brush_insert_region ((*i), pos);
4892         }
4893 }
4894
4895 void
4896 Editor::reset_region_gain_envelopes ()
4897 {
4898         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4899
4900         if (!session || rs.empty()) {
4901                 return;
4902         }
4903
4904         session->begin_reversible_command (_("reset region gain"));
4905
4906         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4907                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4908                 if (arv) {
4909                         boost::shared_ptr<AutomationList> alist (arv->audio_region()->envelope());
4910                         XMLNode& before (alist->get_state());
4911
4912                         arv->audio_region()->set_default_envelope ();
4913                         session->add_command (new MementoCommand<AutomationList>(*arv->audio_region()->envelope().get(), &before, &alist->get_state()));
4914                 }
4915         }
4916
4917         session->commit_reversible_command ();
4918 }
4919
4920 void
4921 Editor::toggle_gain_envelope_visibility ()
4922 {
4923         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4924
4925         if (!session || rs.empty()) {
4926                 return;
4927         }
4928
4929         session->begin_reversible_command (_("region gain envelope visible"));
4930
4931         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4932                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4933                 if (arv) {
4934                         XMLNode &before = arv->region()->get_state ();
4935                         arv->set_envelope_visible (!arv->envelope_visible());
4936                         XMLNode &after = arv->region()->get_state ();
4937                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4938                 }
4939         }
4940
4941         session->commit_reversible_command ();
4942 }
4943
4944 void
4945 Editor::toggle_gain_envelope_active ()
4946 {
4947         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4948
4949         if (!session || rs.empty()) {
4950                 return;
4951         }
4952
4953         session->begin_reversible_command (_("region gain envelope active"));
4954
4955         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4956                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4957                 if (arv) {
4958                         XMLNode &before = arv->region()->get_state ();
4959                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4960                         XMLNode &after = arv->region()->get_state ();
4961                         session->add_command (new MementoCommand<Region> (*(arv->region().get()), &before, &after));
4962                 }
4963         }
4964
4965         session->commit_reversible_command ();
4966 }
4967
4968 void
4969 Editor::toggle_region_lock ()
4970 {
4971         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4972
4973         if (!session || rs.empty()) {
4974                 return;
4975         }
4976
4977         session->begin_reversible_command (_("region lock"));
4978
4979         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4980                 XMLNode &before = (*i)->region()->get_state ();
4981                 (*i)->region()->set_locked (!(*i)->region()->locked());
4982                 XMLNode &after = (*i)->region()->get_state ();
4983                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
4984         }
4985
4986         session->commit_reversible_command ();
4987 }
4988
4989 void
4990 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4991 {
4992         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
4993
4994         if (!session || rs.empty()) {
4995                 return;
4996         }
4997
4998         session->begin_reversible_command (_("region lock style"));
4999
5000         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5001                 XMLNode &before = (*i)->region()->get_state ();
5002                 (*i)->region()->set_position_lock_style (ps);
5003                 XMLNode &after = (*i)->region()->get_state ();
5004                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5005         }
5006
5007         session->commit_reversible_command ();
5008 }
5009
5010
5011 void
5012 Editor::toggle_region_mute ()
5013 {
5014         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5015
5016         if (!session || rs.empty()) {
5017                 return;
5018         }
5019
5020         session->begin_reversible_command (_("region mute"));
5021
5022         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5023                 XMLNode &before = (*i)->region()->get_state ();
5024                 (*i)->region()->set_muted (!(*i)->region()->muted());
5025                 XMLNode &after = (*i)->region()->get_state ();
5026                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5027         }
5028
5029         session->commit_reversible_command ();
5030 }
5031
5032 void
5033 Editor::toggle_region_opaque ()
5034 {
5035         RegionSelection rs = get_equivalent_regions (selection->regions, RouteGroup::Edit);
5036
5037         if (!session || rs.empty()) {
5038                 return;
5039         }
5040
5041         session->begin_reversible_command (_("region opacity"));
5042
5043         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5044                 XMLNode &before = (*i)->region()->get_state ();
5045                 (*i)->region()->set_opaque (!(*i)->region()->opaque());
5046                 XMLNode &after = (*i)->region()->get_state ();
5047                 session->add_command (new MementoCommand<Region> (*((*i)->region().get()), &before, &after));
5048         }
5049
5050         session->commit_reversible_command ();
5051 }
5052
5053 void
5054 Editor::toggle_record_enable ()
5055 {
5056         bool new_state = false;
5057         bool first = true;
5058         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5059                 RouteTimeAxisView *rtav = dynamic_cast<RouteTimeAxisView *>(*i);
5060                 if (!rtav)
5061                         continue;
5062                 if (!rtav->is_track())
5063                         continue;
5064
5065                 if (first) {
5066                         new_state = !rtav->track()->record_enabled();
5067                         first = false;
5068                 }
5069
5070                 rtav->track()->set_record_enable(new_state, this);
5071         }
5072 }
5073
5074
5075 void
5076 Editor::set_fade_length (bool in)
5077 {
5078         RegionSelection rs;
5079
5080         get_regions_for_action (rs, true);
5081
5082         if (rs.empty()) {
5083                 return;
5084         }
5085
5086         /* we need a region to measure the offset from the start */
5087
5088         RegionView* rv = rs.front ();
5089
5090         nframes64_t pos = get_preferred_edit_position();
5091         nframes64_t len;
5092         char* cmd;
5093
5094         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
5095                 /* edit point is outside the relevant region */
5096                 return;
5097         }
5098
5099         if (in) {
5100                 if (pos <= rv->region()->position()) {
5101                         /* can't do it */
5102                         return;
5103                 }
5104                 len = pos - rv->region()->position();
5105                 cmd = _("set fade in length");
5106         } else {
5107                 if (pos >= rv->region()->last_frame()) {
5108                         /* can't do it */
5109                         return;
5110                 }
5111                 len = rv->region()->last_frame() - pos;
5112                 cmd = _("set fade out length");
5113         }
5114
5115         begin_reversible_command (cmd);
5116
5117         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5118                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5119
5120                 if (!tmp) {
5121                         return;
5122                 }
5123
5124                 boost::shared_ptr<AutomationList> alist;
5125                 if (in) {
5126                         alist = tmp->audio_region()->fade_in();
5127                 } else {
5128                         alist = tmp->audio_region()->fade_out();
5129                 }
5130
5131                 XMLNode &before = alist->get_state();
5132
5133                 if (in) {
5134                         tmp->audio_region()->set_fade_in_length (len);
5135                         tmp->audio_region()->set_fade_in_active (true);
5136                 } else {
5137                         tmp->audio_region()->set_fade_out_length (len);
5138                         tmp->audio_region()->set_fade_out_active (true);
5139                 }
5140
5141                 XMLNode &after = alist->get_state();
5142                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
5143         }
5144
5145         commit_reversible_command ();
5146 }
5147
5148 void
5149 Editor::toggle_fade_active (bool in)
5150 {
5151         RegionSelection rs;
5152
5153         get_regions_for_action (rs);
5154
5155         if (rs.empty()) {
5156                 return;
5157         }
5158
5159         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
5160         bool have_switch = false;
5161         bool yn = false;
5162
5163         begin_reversible_command (cmd);
5164
5165         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5166                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5167
5168                 if (!tmp) {
5169                         return;
5170                 }
5171
5172                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
5173
5174                 /* make the behaviour consistent across all regions */
5175
5176                 if (!have_switch) {
5177                         if (in) {
5178                                 yn = region->fade_in_active();
5179                         } else {
5180                                 yn = region->fade_out_active();
5181                         }
5182                         have_switch = true;
5183                 }
5184
5185                 XMLNode &before = region->get_state();
5186                 if (in) {
5187                         region->set_fade_in_active (!yn);
5188                 } else {
5189                         region->set_fade_out_active (!yn);
5190                 }
5191                 XMLNode &after = region->get_state();
5192                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
5193         }
5194
5195         commit_reversible_command ();
5196 }
5197
5198 void
5199 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
5200 {
5201         RegionSelection rs;
5202
5203         get_regions_for_action (rs);
5204
5205         if (rs.empty()) {
5206                 return;
5207         }
5208
5209         begin_reversible_command (_("set fade in shape"));
5210
5211         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5212                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5213
5214                 if (!tmp) {
5215                         return;
5216                 }
5217
5218                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_in();
5219                 XMLNode &before = alist->get_state();
5220
5221                 tmp->audio_region()->set_fade_in_shape (shape);
5222
5223                 XMLNode &after = alist->get_state();
5224                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5225         }
5226
5227         commit_reversible_command ();
5228
5229 }
5230
5231 void
5232 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
5233 {
5234         RegionSelection rs;
5235
5236         get_regions_for_action (rs);
5237
5238         if (rs.empty()) {
5239                 return;
5240         }
5241
5242         begin_reversible_command (_("set fade out shape"));
5243
5244         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5245                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5246
5247                 if (!tmp) {
5248                         return;
5249                 }
5250
5251                 boost::shared_ptr<AutomationList> alist = tmp->audio_region()->fade_out();
5252                 XMLNode &before = alist->get_state();
5253
5254                 tmp->audio_region()->set_fade_out_shape (shape);
5255
5256                 XMLNode &after = alist->get_state();
5257                 session->add_command(new MementoCommand<AutomationList>(*alist.get(), &before, &after));
5258         }
5259
5260         commit_reversible_command ();
5261 }
5262
5263 void
5264 Editor::set_fade_in_active (bool yn)
5265 {
5266         RegionSelection rs;
5267
5268         get_regions_for_action (rs);
5269
5270         if (rs.empty()) {
5271                 return;
5272         }
5273
5274         begin_reversible_command (_("set fade in active"));
5275
5276         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5277                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5278
5279                 if (!tmp) {
5280                         return;
5281                 }
5282
5283
5284                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5285
5286                 XMLNode &before = ar->get_state();
5287
5288                 ar->set_fade_in_active (yn);
5289
5290                 XMLNode &after = ar->get_state();
5291                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5292         }
5293
5294         commit_reversible_command ();
5295 }
5296
5297 void
5298 Editor::set_fade_out_active (bool yn)
5299 {
5300         RegionSelection rs;
5301
5302         get_regions_for_action (rs);
5303
5304         if (rs.empty()) {
5305                 return;
5306         }
5307
5308         begin_reversible_command (_("set fade out active"));
5309
5310         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
5311                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
5312
5313                 if (!tmp) {
5314                         return;
5315                 }
5316
5317                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
5318
5319                 XMLNode &before = ar->get_state();
5320
5321                 ar->set_fade_out_active (yn);
5322
5323                 XMLNode &after = ar->get_state();
5324                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
5325         }
5326
5327         commit_reversible_command ();
5328 }
5329
5330 void
5331 Editor::toggle_selected_region_fades (int dir)
5332 {
5333         RegionSelection rs;
5334         RegionSelection::iterator i;
5335         boost::shared_ptr<AudioRegion> ar;
5336         bool yn;
5337
5338         get_regions_for_action (rs);
5339
5340         if (rs.empty()) {
5341                 return;
5342         }
5343
5344         for (i = rs.begin(); i != rs.end(); ++i) {
5345                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) != 0) {
5346                         if (dir == -1) {
5347                                 yn = ar->fade_out_active ();
5348                         } else {
5349                                 yn = ar->fade_in_active ();
5350                         }
5351                         break;
5352                 }
5353         }
5354
5355         if (i == rs.end()) {
5356                 return;
5357         }
5358
5359         /* XXX should this undo-able? */
5360
5361         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5362                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>((*i)->region())) == 0) {
5363                         continue;
5364                 }
5365                 if (dir == 1 || dir == 0) {
5366                         ar->set_fade_in_active (!yn);
5367                 }
5368
5369                 if (dir == -1 || dir == 0) {
5370                         ar->set_fade_out_active (!yn);
5371                 }
5372         }
5373 }
5374
5375
5376 /** Update region fade visibility after its configuration has been changed */
5377 void
5378 Editor::update_region_fade_visibility ()
5379 {
5380         bool _fade_visibility = session->config.get_show_region_fades ();
5381
5382         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5383                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5384                 if (v) {
5385                         if (_fade_visibility) {
5386                                 v->audio_view()->show_all_fades ();
5387                         } else {
5388                                 v->audio_view()->hide_all_fades ();
5389                         }
5390                 }
5391         }
5392 }
5393
5394 /** Update crossfade visibility after its configuration has been changed */
5395 void
5396 Editor::update_xfade_visibility ()
5397 {
5398         _xfade_visibility = session->config.get_xfades_visible ();
5399
5400         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5401                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
5402                 if (v) {
5403                         if (_xfade_visibility) {
5404                                 v->show_all_xfades ();
5405                         } else {
5406                                 v->hide_all_xfades ();
5407                         }
5408                 }
5409         }
5410 }
5411
5412 void
5413 Editor::set_edit_point ()
5414 {
5415         nframes64_t where;
5416         bool ignored;
5417
5418         if (!mouse_frame (where, ignored)) {
5419                 return;
5420         }
5421
5422         snap_to (where);
5423
5424         if (selection->markers.empty()) {
5425
5426                 mouse_add_new_marker (where);
5427
5428         } else {
5429                 bool ignored;
5430
5431                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
5432
5433                 if (loc) {
5434                         loc->move_to (where);
5435                 }
5436         }
5437 }
5438
5439 void
5440 Editor::set_playhead_cursor ()
5441 {
5442         if (entered_marker) {
5443                 session->request_locate (entered_marker->position(), session->transport_rolling());
5444         } else {
5445                 nframes64_t where;
5446                 bool ignored;
5447
5448                 if (!mouse_frame (where, ignored)) {
5449                         return;
5450                 }
5451
5452                 snap_to (where);
5453
5454                 if (session) {
5455                         session->request_locate (where, session->transport_rolling());
5456                 }
5457         }
5458 }
5459
5460 void
5461 Editor::split ()
5462 {
5463         RegionSelection rs;
5464
5465         get_regions_for_action (rs, true);
5466
5467         nframes64_t where = get_preferred_edit_position();
5468
5469         if (rs.empty()) {
5470                 return;
5471         }
5472
5473         split_regions_at (where, rs);
5474 }
5475
5476 void
5477 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
5478 {
5479         if (entered_track && mouse_mode == MouseObject) {
5480                 if (!selection->tracks.empty()) {
5481                         if (!selection->selected (entered_track)) {
5482                                 selection->add (entered_track);
5483                         }
5484                 } else {
5485                         /* there is no selection, but this operation requires/prefers selected objects */
5486
5487                         if (op_really_wants_one_track_if_none_are_selected) {
5488                                 selection->set (entered_track);
5489                         }
5490                 }
5491         }
5492 }
5493
5494 struct EditorOrderRouteSorter {
5495     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5496             /* use of ">" forces the correct sort order */
5497             return a->order_key ("editor") < b->order_key ("editor");
5498     }
5499 };
5500
5501 void
5502 Editor::select_next_route()
5503 {
5504         if (selection->tracks.empty()) {
5505                 selection->set (track_views.front());
5506                 return;
5507         }
5508
5509         TimeAxisView* current = selection->tracks.front();
5510
5511         RouteUI *rui;
5512         do {
5513                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5514                         if (*i == current) {
5515                                 ++i;
5516                                 if (i != track_views.end()) {
5517                                         current = (*i);
5518                                 } else {
5519                                         current = (*(track_views.begin()));
5520                                         //selection->set (*(track_views.begin()));
5521                                 }
5522                                 break;
5523                         }
5524                 }
5525                 rui = dynamic_cast<RouteUI *>(current);
5526         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5527
5528         selection->set(current);
5529
5530         ensure_track_visible(current);
5531 }
5532
5533 void
5534 Editor::select_prev_route()
5535 {
5536         if (selection->tracks.empty()) {
5537                 selection->set (track_views.front());
5538                 return;
5539         }
5540
5541         TimeAxisView* current = selection->tracks.front();
5542
5543         RouteUI *rui;
5544         do {
5545                 for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5546                         if (*i == current) {
5547                                 ++i;
5548                                 if (i != track_views.rend()) {
5549                                         current = (*i);
5550                                 } else {
5551                                         current = *(track_views.rbegin());
5552                                 }
5553                                 break;
5554                         }
5555                 }
5556                 rui = dynamic_cast<RouteUI *>(current);
5557         } while ( current->hidden() || (rui != NULL && !rui->route()->active()));
5558
5559         selection->set (current);
5560
5561         ensure_track_visible(current);
5562 }
5563
5564 void
5565 Editor::ensure_track_visible(TimeAxisView *track)
5566 {
5567         if (track->hidden())
5568                 return;
5569
5570         double const current_view_min_y = vertical_adjustment.get_value();
5571         double const current_view_max_y = vertical_adjustment.get_value() + vertical_adjustment.get_page_size() - canvas_timebars_vsize;
5572
5573         double const track_min_y = track->y_position ();
5574         double const track_max_y = track->y_position () + track->effective_height ();
5575
5576         if (track_min_y >= current_view_min_y &&
5577             track_max_y <= current_view_max_y) {
5578                 return;
5579         }
5580
5581         double new_value;
5582
5583         if (track_min_y < current_view_min_y) {
5584                 // Track is above the current view
5585                 new_value = track_min_y;
5586         } else {
5587                 // Track is below the current view
5588                 new_value = track->y_position () + track->effective_height() + canvas_timebars_vsize - vertical_adjustment.get_page_size();
5589         }
5590
5591         vertical_adjustment.set_value(new_value);
5592 }
5593
5594 void
5595 Editor::set_loop_from_selection (bool play)
5596 {
5597         if (session == 0 || selection->time.empty()) {
5598                 return;
5599         }
5600
5601         nframes64_t start = selection->time[clicked_selection].start;
5602         nframes64_t end = selection->time[clicked_selection].end;
5603
5604         set_loop_range (start, end,  _("set loop range from selection"));
5605
5606         if (play) {
5607                 session->request_play_loop (true);
5608                 session->request_locate (start, true);
5609         }
5610 }
5611
5612 void
5613 Editor::set_loop_from_edit_range (bool play)
5614 {
5615         if (session == 0) {
5616                 return;
5617         }
5618
5619         nframes64_t start;
5620         nframes64_t end;
5621
5622         if (!get_edit_op_range (start, end)) {
5623                 return;
5624         }
5625
5626         set_loop_range (start, end,  _("set loop range from edit range"));
5627
5628         if (play) {
5629                 session->request_play_loop (true);
5630                 session->request_locate (start, true);
5631         }
5632 }
5633
5634 void
5635 Editor::set_loop_from_region (bool play)
5636 {
5637         nframes64_t start = max_frames;
5638         nframes64_t end = 0;
5639
5640         RegionSelection rs;
5641
5642         get_regions_for_action (rs);
5643
5644         if (rs.empty()) {
5645                 return;
5646         }
5647
5648         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5649                 if ((*i)->region()->position() < start) {
5650                         start = (*i)->region()->position();
5651                 }
5652                 if ((*i)->region()->last_frame() + 1 > end) {
5653                         end = (*i)->region()->last_frame() + 1;
5654                 }
5655         }
5656
5657         set_loop_range (start, end, _("set loop range from region"));
5658
5659         if (play) {
5660                 session->request_play_loop (true);
5661                 session->request_locate (start, true);
5662         }
5663 }
5664
5665 void
5666 Editor::set_punch_from_selection ()
5667 {
5668         if (session == 0 || selection->time.empty()) {
5669                 return;
5670         }
5671
5672         nframes64_t start = selection->time[clicked_selection].start;
5673         nframes64_t end = selection->time[clicked_selection].end;
5674
5675         set_punch_range (start, end,  _("set punch range from selection"));
5676 }
5677
5678 void
5679 Editor::set_punch_from_edit_range ()
5680 {
5681         if (session == 0) {
5682                 return;
5683         }
5684
5685         nframes64_t start;
5686         nframes64_t end;
5687
5688         if (!get_edit_op_range (start, end)) {
5689                 return;
5690         }
5691
5692         set_punch_range (start, end,  _("set punch range from edit range"));
5693 }
5694
5695 void
5696 Editor::set_punch_from_region ()
5697 {
5698         nframes64_t start = max_frames;
5699         nframes64_t end = 0;
5700
5701         RegionSelection rs;
5702
5703         get_regions_for_action (rs);
5704
5705         if (rs.empty()) {
5706                 return;
5707         }
5708
5709         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5710                 if ((*i)->region()->position() < start) {
5711                         start = (*i)->region()->position();
5712                 }
5713                 if ((*i)->region()->last_frame() + 1 > end) {
5714                         end = (*i)->region()->last_frame() + 1;
5715                 }
5716         }
5717
5718         set_punch_range (start, end, _("set punch range from region"));
5719 }
5720
5721 void
5722 Editor::pitch_shift_regions ()
5723 {
5724         RegionSelection rs;
5725
5726         get_regions_for_action (rs);
5727
5728         if (rs.empty()) {
5729                 return;
5730         }
5731
5732         pitch_shift (rs, 1.2);
5733 }
5734
5735 void
5736 Editor::use_region_as_bar ()
5737 {
5738         if (!session) {
5739                 return;
5740         }
5741
5742         RegionSelection rs;
5743
5744         get_regions_for_action (rs);
5745
5746         if (rs.empty()) {
5747                 return;
5748         }
5749
5750         RegionView* rv = rs.front();
5751
5752         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5753 }
5754
5755 void
5756 Editor::use_range_as_bar ()
5757 {
5758         nframes64_t start, end;
5759         if (get_edit_op_range (start, end)) {
5760                 define_one_bar (start, end);
5761         }
5762 }
5763
5764 void
5765 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5766 {
5767         nframes64_t length = end - start;
5768
5769         const Meter& m (session->tempo_map().meter_at (start));
5770
5771         /* length = 1 bar */
5772
5773         /* now we want frames per beat.
5774            we have frames per bar, and beats per bar, so ...
5775         */
5776
5777         double frames_per_beat = length / m.beats_per_bar();
5778
5779         /* beats per minute = */
5780
5781         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5782
5783         /* now decide whether to:
5784
5785             (a) set global tempo
5786             (b) add a new tempo marker
5787
5788         */
5789
5790         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5791
5792         bool do_global = false;
5793
5794         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5795
5796                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5797                    at the start, or create a new marker
5798                 */
5799
5800                 vector<string> options;
5801                 options.push_back (_("Cancel"));
5802                 options.push_back (_("Add new marker"));
5803                 options.push_back (_("Set global tempo"));
5804                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5805                           options);
5806                 c.set_default_response (2);
5807
5808                 switch (c.run()) {
5809                 case 0:
5810                         return;
5811
5812                 case 2:
5813                         do_global = true;
5814                         break;
5815
5816                 default:
5817                         do_global = false;
5818                 }
5819
5820         } else {
5821
5822                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5823                    if the marker is at the region starter, change it, otherwise add
5824                    a new tempo marker
5825                 */
5826         }
5827
5828         begin_reversible_command (_("set tempo from region"));
5829         XMLNode& before (session->tempo_map().get_state());
5830
5831         if (do_global) {
5832                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5833         } else if (t.frame() == start) {
5834                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5835         } else {
5836                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5837         }
5838
5839         XMLNode& after (session->tempo_map().get_state());
5840
5841         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5842         commit_reversible_command ();
5843 }
5844
5845 void
5846 Editor::split_region_at_transients ()
5847 {
5848         AnalysisFeatureList positions;
5849
5850         if (!session) {
5851                 return;
5852         }
5853
5854         RegionSelection rs;
5855
5856         get_regions_for_action (rs);
5857
5858         if (rs.empty()) {
5859                 return;
5860         }
5861
5862         session->begin_reversible_command (_("split regions"));
5863
5864         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5865
5866                 RegionSelection::iterator tmp;
5867
5868                 tmp = i;
5869                 ++tmp;
5870
5871                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5872
5873                 if (ar && (ar->get_transients (positions) == 0)) {
5874                         split_region_at_points ((*i)->region(), positions, true);
5875                         positions.clear ();
5876                 }
5877
5878                 i = tmp;
5879         }
5880
5881         session->commit_reversible_command ();
5882
5883 }
5884
5885 void
5886 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5887 {
5888         bool use_rhythmic_rodent = false;
5889
5890         boost::shared_ptr<Playlist> pl = r->playlist();
5891
5892         if (!pl) {
5893                 return;
5894         }
5895
5896         if (positions.empty()) {
5897                 return;
5898         }
5899
5900
5901         if (positions.size() > 20) {
5902                 Glib::ustring msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), r->name(), positions.size() + 1);
5903                 MessageDialog msg (msgstr,
5904                                    false,
5905                                    Gtk::MESSAGE_INFO,
5906                                    Gtk::BUTTONS_OK_CANCEL);
5907
5908                 if (can_ferret) {
5909                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5910                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5911                 } else {
5912                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5913                 }
5914
5915                 msg.set_title (_("Excessive split?"));
5916                 msg.present ();
5917
5918                 int response = msg.run();
5919                 msg.hide ();
5920                 switch (response) {
5921                 case RESPONSE_OK:
5922                         break;
5923                 case RESPONSE_APPLY:
5924                         use_rhythmic_rodent = true;
5925                         break;
5926                 default:
5927                         return;
5928                 }
5929         }
5930
5931         if (use_rhythmic_rodent) {
5932                 show_rhythm_ferret ();
5933                 return;
5934         }
5935
5936         AnalysisFeatureList::const_iterator x;
5937
5938         nframes64_t pos = r->position();
5939
5940         XMLNode& before (pl->get_state());
5941
5942         x = positions.begin();
5943
5944         while (x != positions.end()) {
5945                 if ((*x) > pos) {
5946                         break;
5947                 }
5948                 ++x;
5949         }
5950
5951         if (x == positions.end()) {
5952                 return;
5953         }
5954
5955         pl->freeze ();
5956         pl->remove_region (r);
5957
5958         while (x != positions.end()) {
5959
5960                 /* file start = original start + how far we from the initial position ?
5961                  */
5962
5963                 nframes64_t file_start = r->start() + (pos - r->position());
5964
5965                 /* length = next position - current position
5966                  */
5967
5968                 nframes64_t len = (*x) - pos;
5969
5970                 /* XXX we do we really want to allow even single-sample regions?
5971                    shouldn't we have some kind of lower limit on region size?
5972                 */
5973
5974                 if (len <= 0) {
5975                         break;
5976                 }
5977
5978                 string new_name;
5979
5980                 if (session->region_name (new_name, r->name())) {
5981                         break;
5982                 }
5983
5984                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5985
5986                 boost::shared_ptr<Region> nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5987                 pl->add_region (nr, pos);
5988
5989                 pos += len;
5990                 ++x;
5991
5992                 if (*x > r->last_frame()) {
5993
5994                         /* add final fragment */
5995
5996                         file_start = r->start() + (pos - r->position());
5997                         len = r->last_frame() - pos;
5998
5999                         nr = RegionFactory::create (r->sources(), file_start, len, new_name, 0, Region::DefaultFlags);
6000                         pl->add_region (nr, pos);
6001
6002                         break;
6003                 }
6004         }
6005
6006         pl->thaw ();
6007
6008         XMLNode& after (pl->get_state());
6009
6010         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
6011 }
6012
6013 void
6014 Editor::tab_to_transient (bool forward)
6015 {
6016         AnalysisFeatureList positions;
6017
6018         if (!session) {
6019                 return;
6020         }
6021
6022         nframes64_t pos = session->audible_frame ();
6023
6024         if (!selection->tracks.empty()) {
6025
6026                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
6027
6028                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
6029
6030                         if (rtv) {
6031                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
6032                                 if (ds) {
6033                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
6034                                         if (pl) {
6035                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
6036
6037                                                 if (result >= 0) {
6038                                                         positions.push_back (result);
6039                                                 }
6040                                         }
6041                                 }
6042                         }
6043                 }
6044
6045         } else {
6046
6047                 RegionSelection rs;
6048
6049                 get_regions_for_action (rs);
6050
6051                 if (rs.empty()) {
6052                         return;
6053                 }
6054
6055                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
6056                         (*r)->region()->get_transients (positions);
6057                 }
6058         }
6059
6060         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
6061
6062         if (forward) {
6063                 AnalysisFeatureList::iterator x;
6064
6065                 for (x = positions.begin(); x != positions.end(); ++x) {
6066                         if ((*x) > pos) {
6067                                 break;
6068                         }
6069                 }
6070
6071                 if (x != positions.end ()) {
6072                         session->request_locate (*x);
6073                 }
6074
6075         } else {
6076                 AnalysisFeatureList::reverse_iterator x;
6077
6078                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
6079                         if ((*x) < pos) {
6080                                 break;
6081                         }
6082                 }
6083
6084                 if (x != positions.rend ()) {
6085                         session->request_locate (*x);
6086                 }
6087         }
6088 }
6089 void
6090 Editor::playhead_forward_to_grid ()
6091 {
6092         if (!session) return;
6093         nframes64_t pos = playhead_cursor->current_frame;
6094         if (pos < max_frames - 1) {
6095                 pos += 2;
6096                 snap_to_internal (pos, 1, false);
6097                 session->request_locate (pos);
6098         }
6099 }
6100
6101
6102 void
6103 Editor::playhead_backward_to_grid ()
6104 {
6105         if (!session) return;
6106         nframes64_t pos = playhead_cursor->current_frame;
6107         if (pos > 2) {
6108                 pos -= 2;
6109                 snap_to_internal (pos, -1, false);
6110                 session->request_locate (pos);
6111         }
6112 }
6113
6114 void
6115 Editor::set_track_height (uint32_t h)
6116 {
6117         TrackSelection& ts (selection->tracks);
6118
6119         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6120                 (*x)->set_height (h);
6121         }
6122 }
6123
6124 void
6125 Editor::toggle_tracks_active ()
6126 {
6127         TrackSelection& ts (selection->tracks);
6128         bool first = true;
6129         bool target = false;
6130
6131         if (ts.empty()) {
6132                 return;
6133         }
6134
6135         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6136                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
6137
6138                 if (rtv) {
6139                         if (first) {
6140                                 target = !rtv->_route->active();
6141                                 first = false;
6142                         }
6143                         rtv->_route->set_active (target);
6144                 }
6145         }
6146 }
6147
6148 void
6149 Editor::remove_tracks ()
6150 {
6151         TrackSelection& ts (selection->tracks);
6152
6153         if (ts.empty()) {
6154                 return;
6155         }
6156
6157         vector<string> choices;
6158         string prompt;
6159         int ntracks = 0;
6160         int nbusses = 0;
6161         const char* trackstr;
6162         const char* busstr;
6163         vector<boost::shared_ptr<Route> > routes;
6164
6165         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
6166                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
6167                 if (rtv) {
6168                         if (rtv->is_track()) {
6169                                 ntracks++;
6170                         } else {
6171                                 nbusses++;
6172                         }
6173                 }
6174                 routes.push_back (rtv->_route);
6175         }
6176
6177         if (ntracks + nbusses == 0) {
6178                 return;
6179         }
6180
6181         if (ntracks > 1) {
6182                 trackstr = _("tracks");
6183         } else {
6184                 trackstr = _("track");
6185         }
6186
6187         if (nbusses > 1) {
6188                 busstr = _("busses");
6189         } else {
6190                 busstr = _("bus");
6191         }
6192
6193         if (ntracks) {
6194                 if (nbusses) {
6195                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
6196                                                     "(You may also lose the playlists associated with the %2)\n\n"
6197                                                     "This action cannot be undone!"),
6198                                                   ntracks, trackstr, nbusses, busstr);
6199                 } else {
6200                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
6201                                                     "(You may also lose the playlists associated with the %2)\n\n"
6202                                                     "This action cannot be undone!"),
6203                                                   ntracks, trackstr);
6204                 }
6205         } else if (nbusses) {
6206                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
6207                                           nbusses, busstr);
6208         }
6209
6210         choices.push_back (_("No, do nothing."));
6211         if (ntracks + nbusses > 1) {
6212                 choices.push_back (_("Yes, remove them."));
6213         } else {
6214                 choices.push_back (_("Yes, remove it."));
6215         }
6216
6217         Choice prompter (prompt, choices);
6218
6219         if (prompter.run () != 1) {
6220                 return;
6221         }
6222
6223         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
6224                 session->remove_route (*x);
6225         }
6226 }
6227
6228 void
6229 Editor::do_insert_time ()
6230 {
6231         if (selection->tracks.empty()) {
6232                 return;
6233         }
6234
6235         ArdourDialog d (*this, _("Insert Time"));
6236
6237         nframes64_t const pos = get_preferred_edit_position ();
6238
6239         d.get_vbox()->set_border_width (12);
6240         d.get_vbox()->set_spacing (4);
6241
6242         Table table (2, 2);
6243         table.set_spacings (4);
6244
6245         Label time_label (_("Time to insert:"));
6246         time_label.set_alignment (1, 0.5);
6247         table.attach (time_label, 0, 1, 0, 1, FILL | EXPAND);
6248         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, false, true, true);
6249         clock.set (0);
6250         clock.set_session (session);
6251         clock.set_bbt_reference (pos);
6252         table.attach (clock, 1, 2, 0, 1);
6253
6254         Label intersected_label (_("Intersected regions should:"));
6255         intersected_label.set_alignment (1, 0.5);
6256         table.attach (intersected_label, 0, 1, 1, 2, FILL | EXPAND);
6257         ComboBoxText intersected_combo;
6258         intersected_combo.append_text (_("stay in position"));
6259         intersected_combo.append_text (_("move"));
6260         intersected_combo.append_text (_("be split"));
6261         intersected_combo.set_active (0);
6262         table.attach (intersected_combo, 1, 2, 1, 2);
6263
6264         d.get_vbox()->pack_start (table);
6265
6266         CheckButton move_glued (_("Move glued regions"));
6267         d.get_vbox()->pack_start (move_glued);
6268         CheckButton move_markers (_("Move markers"));
6269         d.get_vbox()->pack_start (move_markers);
6270         CheckButton move_tempos (_("Move tempo and meter changes"));
6271         d.get_vbox()->pack_start (move_tempos);
6272
6273         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
6274         d.add_button (_("Insert time"), Gtk::RESPONSE_OK);
6275         d.show_all ();
6276
6277         int response = d.run ();
6278
6279         if (response != RESPONSE_OK) {
6280                 return;
6281         }
6282
6283         nframes64_t distance = clock.current_duration (pos);
6284
6285         if (distance == 0) {
6286                 return;
6287         }
6288
6289         InsertTimeOption opt;
6290
6291         switch (intersected_combo.get_active_row_number ()) {
6292         case 0:
6293                 opt = LeaveIntersected;
6294                 break;
6295         case 1:
6296                 opt = MoveIntersected;
6297                 break;
6298         case 2:
6299                 opt = SplitIntersected;
6300                 break;
6301         }
6302
6303         insert_time (pos, distance, opt, move_glued.get_active(), move_markers.get_active(), move_tempos.get_active());
6304 }
6305
6306 void
6307 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
6308                      bool ignore_music_glue, bool markers_too, bool tempo_too)
6309 {
6310         bool commit = false;
6311
6312         if (Config->get_edit_mode() == Lock) {
6313                 return;
6314         }
6315
6316         begin_reversible_command (_("insert time"));
6317
6318         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
6319                 /* regions */
6320                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
6321
6322                 if (pl) {
6323
6324                         XMLNode &before = pl->get_state();
6325
6326                         if (opt == SplitIntersected) {
6327                                 pl->split (pos);
6328                         }
6329
6330                         pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
6331
6332                         XMLNode &after = pl->get_state();
6333
6334                         session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
6335                         commit = true;
6336                 }
6337
6338                 /* automation */
6339                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*x);
6340                 if (rtav) {
6341                         rtav->route ()->shift (pos, frames);
6342                         commit = true;
6343                 }
6344         }
6345
6346         /* markers */
6347         if (markers_too) {
6348                 bool moved = false;
6349                 XMLNode& before (session->locations()->get_state());
6350                 Locations::LocationList copy (session->locations()->list());
6351
6352                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
6353
6354                         Locations::LocationList::const_iterator tmp;
6355
6356                         if ((*i)->start() >= pos) {
6357                                 (*i)->set_start ((*i)->start() + frames);
6358                                 if (!(*i)->is_mark()) {
6359                                         (*i)->set_end ((*i)->end() + frames);
6360                                 }
6361                                 moved = true;
6362                         }
6363                 }
6364
6365                 if (moved) {
6366                         XMLNode& after (session->locations()->get_state());
6367                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
6368                 }
6369         }
6370
6371         if (tempo_too) {
6372                 session->tempo_map().insert_time (pos, frames);
6373         }
6374
6375         if (commit) {
6376                 commit_reversible_command ();
6377         }
6378 }
6379
6380 void
6381 Editor::fit_selected_tracks ()
6382 {
6383         fit_tracks (selection->tracks);
6384 }
6385
6386 void
6387 Editor::fit_tracks (TrackSelection & tracks)
6388 {
6389         if (tracks.empty()) {
6390                 return;
6391         }
6392
6393         uint32_t child_heights = 0;
6394
6395         for (TrackSelection::iterator t = tracks.begin(); t != tracks.end(); ++t) {
6396
6397                 if (!(*t)->marked_for_display()) {
6398                         continue;
6399                 }
6400
6401                 child_heights += (*t)->effective_height() - (*t)->current_height();
6402         }
6403
6404         uint32_t h = (uint32_t) floor ((_canvas_height - child_heights - canvas_timebars_vsize) / tracks.size());
6405         double first_y_pos = DBL_MAX;
6406
6407         if (h < TimeAxisView::hSmall) {
6408                 MessageDialog msg (*this, _("There are too many tracks to fit in the current window"));
6409                 /* too small to be displayed */
6410                 return;
6411         }
6412
6413         undo_visual_stack.push_back (current_visual_state());
6414
6415         /* operate on all tracks, hide unselected ones that are in the middle of selected ones */
6416
6417         bool prev_was_selected = false;
6418         bool is_selected = tracks.contains (track_views.front());
6419         bool next_is_selected;
6420
6421         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
6422
6423                 TrackViewList::iterator next;
6424
6425                 next = t;
6426                 ++next;
6427
6428                 if (next != track_views.end()) {
6429                         next_is_selected = tracks.contains (*next);
6430                 } else {
6431                         next_is_selected = false;
6432                 }
6433
6434                 if (is_selected) {
6435                         (*t)->set_height (h);
6436                         first_y_pos = std::min ((*t)->y_position (), first_y_pos);
6437                 } else {
6438                         if (prev_was_selected && next_is_selected) {
6439                                 hide_track_in_display (**t);
6440                         }
6441                 }
6442
6443                 prev_was_selected = is_selected;
6444                 is_selected = next_is_selected;
6445         }
6446
6447         /*
6448            set the controls_layout height now, because waiting for its size
6449            request signal handler will cause the vertical adjustment setting to fail
6450         */
6451
6452         controls_layout.property_height () = full_canvas_height - canvas_timebars_vsize;
6453         vertical_adjustment.set_value (first_y_pos);
6454
6455         redo_visual_stack.push_back (current_visual_state());
6456 }
6457
6458 void
6459 Editor::save_visual_state (uint32_t n)
6460 {
6461         while (visual_states.size() <= n) {
6462                 visual_states.push_back (0);
6463         }
6464
6465         delete visual_states[n];
6466
6467         visual_states[n] = current_visual_state (true);
6468         gdk_beep ();
6469 }
6470
6471 void
6472 Editor::goto_visual_state (uint32_t n)
6473 {
6474         if (visual_states.size() <= n) {
6475                 return;
6476         }
6477
6478         if (visual_states[n] == 0) {
6479                 return;
6480         }
6481
6482         use_visual_state (*visual_states[n]);
6483 }
6484
6485 void
6486 Editor::start_visual_state_op (uint32_t n)
6487 {
6488         if (visual_state_op_connection.empty()) {
6489                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
6490         }
6491 }
6492
6493 void
6494 Editor::cancel_visual_state_op (uint32_t n)
6495 {
6496         if (!visual_state_op_connection.empty()) {
6497                 visual_state_op_connection.disconnect();
6498                 goto_visual_state (n);
6499         }  else {
6500                 //we land here if called from the menu OR if end_visual_state_op has been called
6501                 //so check if we are already in visual state n
6502                 // XXX not yet checking it at all, but redoing does not hurt
6503                 goto_visual_state (n);
6504         }
6505 }
6506
6507 bool
6508 Editor::end_visual_state_op (uint32_t n)
6509 {
6510         visual_state_op_connection.disconnect();
6511         save_visual_state (n);
6512
6513         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
6514         char buf[32];
6515         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
6516         pup->set_text (buf);
6517         pup->touch();
6518
6519         return false; // do not call again
6520 }
6521