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 #include <unistd.h>
  21
  22 #include <cstdlib>
  23 #include <cmath>
  24 #include <string>
  25 #include <map>
  26
  27 #include <pbd/error.h>
  28 #include <pbd/basename.h>
  29 #include <pbd/pthread_utils.h>
  30 #include <pbd/memento_command.h>
  31 #include <pbd/whitespace.h>
  32
  33 #include <gtkmm2ext/utils.h>
  34 #include <gtkmm2ext/choice.h>
  35 #include <gtkmm2ext/window_title.h>
  36
  37 #include <ardour/audioengine.h>
  38 #include <ardour/session.h>
  39 #include <ardour/audioplaylist.h>
  40 #include <ardour/audioregion.h>
  41 #include <ardour/audio_diskstream.h>
  42 #include <ardour/utils.h>
  43 #include <ardour/location.h>
  44 #include <ardour/named_selection.h>
  45 #include <ardour/audio_track.h>
  46 #include <ardour/audioplaylist.h>
  47 #include <ardour/region_factory.h>
  48 #include <ardour/playlist_factory.h>
  49 #include <ardour/reverse.h>
  50
  51 #include "ardour_ui.h"
  52 #include "editor.h"
  53 #include "time_axis_view.h"
  54 #include "audio_time_axis.h"
  55 #include "automation_time_axis.h"
  56 #include "streamview.h"
  57 #include "audio_region_view.h"
  58 #include "rgb_macros.h"
  59 #include "selection_templates.h"
  60 #include "selection.h"
  61 #include "editing.h"
  62 #include "gtk-custom-hruler.h"
  63 #include "gui_thread.h"
  64
  65 #include "i18n.h"
  66
  67 using namespace std;
  68 using namespace ARDOUR;
  69 using namespace PBD;
  70 using namespace sigc;
  71 using namespace Gtk;
  72 using namespace Gtkmm2ext;
  73 using namespace Editing;
  74
  75 /***********************************************************************
  76   Editor operations
  77  ***********************************************************************/
  78
  79 void
  80 Editor::undo (uint32_t n)
  81 {
  82         if (session) {
  83                 session->undo (n);
  84         }
  85 }
  86
  87 void
  88 Editor::redo (uint32_t n)
  89 {
  90         if (session) {
  91                 session->redo (n);
  92         }
  93 }
  94
  95 void
  96 Editor::split_region ()
  97 {
  98         split_region_at (get_preferred_edit_position());
  99 }
 100
 101 void
 102 Editor::split_region_at (nframes_t where)
 103 {
 104         split_regions_at (where, selection->regions);
 105 }
 106
 107 void
 108 Editor::split_regions_at (nframes_t where, RegionSelection& regions)
 109 {
 110         if (regions.empty()) {
 111                 return;
 112         }
 113
 114         begin_reversible_command (_("split"));
 115
 116         // if splitting a single region, and snap-to is using
 117         // region boundaries, don't pay attention to them
 118
 119         if (regions.size() == 1) {
 120                 switch (snap_type) {
 121                 case SnapToRegionStart:
 122                 case SnapToRegionSync:
 123                 case SnapToRegionEnd:
 124                         break;
 125                 default:
 126                         snap_to (where);
 127                 }
 128         } else {
 129                 snap_to (where);
 130         }
 131
 132
 133         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 134
 135                 RegionSelection::iterator tmp;
 136
 137                 /* XXX this test needs to be more complicated, to make sure we really
 138                    have something to split.
 139                 */
 140
 141                 if (!(*a)->region()->covers (where)) {
 142                         ++a;
 143                         continue;
 144                 }
 145
 146                 tmp = a;
 147                 ++tmp;
 148
 149                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 150
 151                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 152
 153                 if (arv) {
 154                         _new_regionviews_show_envelope = arv->envelope_visible();
 155                 }
 156
 157                 if (pl) {
 158                         XMLNode &before = pl->get_state();
 159                         pl->split_region ((*a)->region(), where);
 160                         XMLNode &after = pl->get_state();
 161                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 162                 }
 163
 164                 a = tmp;
 165         }
 166
 167         commit_reversible_command ();
 168         _new_regionviews_show_envelope = false;
 169 }
 170
 171 void
 172 Editor::remove_clicked_region ()
 173 {
 174         if (clicked_audio_trackview == 0 || clicked_regionview == 0) {
 175                 return;
 176         }
 177
 178         boost::shared_ptr<Playlist> playlist = clicked_audio_trackview->playlist();
 179
 180         begin_reversible_command (_("remove region"));
 181         XMLNode &before = playlist->get_state();
 182         playlist->remove_region (clicked_regionview->region());
 183         XMLNode &after = playlist->get_state();
 184         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 185         commit_reversible_command ();
 186 }
 187
 188 void
 189 Editor::destroy_clicked_region ()
 190 {
 191         uint32_t selected = selection->regions.size();
 192
 193         if (!session || !selected) {
 194                 return;
 195         }
 196
 197         vector<string> choices;
 198         string prompt;
 199
 200         prompt  = string_compose (_(" This is destructive, will possibly delete audio files\n\
 201 It cannot be undone\n\
 202 Do you really want to destroy %1 ?"),
 203                            (selected > 1 ?
 204                             _("these regions") : _("this region")));
 205
 206         choices.push_back (_("No, do nothing."));
 207
 208         if (selected > 1) {
 209                 choices.push_back (_("Yes, destroy them."));
 210         } else {
 211                 choices.push_back (_("Yes, destroy it."));
 212         }
 213
 214         Gtkmm2ext::Choice prompter (prompt, choices);
 215
 216         if (prompter.run() == 0) { /* first choice */
 217                 return;
 218         }
 219
 220         if (selected) {
 221                 list<boost::shared_ptr<Region> > r;
 222
 223                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 224                         r.push_back ((*i)->region());
 225                 }
 226
 227                 session->destroy_regions (r);
 228         }
 229 }
 230
 231 boost::shared_ptr<Region>
 232 Editor::select_region_for_operation (int dir, TimeAxisView **tv)
 233 {
 234         RegionView* rv;
 235         boost::shared_ptr<Region> region;
 236         nframes_t start = 0;
 237
 238         if (selection->time.start () == selection->time.end_frame ()) {
 239
 240                 /* no current selection-> is there a selected regionview? */
 241
 242                 if (selection->regions.empty()) {
 243                         return region;
 244                 }
 245
 246         }
 247
 248         if (!selection->regions.empty()) {
 249
 250                 rv = *(selection->regions.begin());
 251                 (*tv) = &rv->get_time_axis_view();
 252                 region = rv->region();
 253
 254         } else if (!selection->tracks.empty()) {
 255
 256                 (*tv) = selection->tracks.front();
 257
 258                 RouteTimeAxisView* rtv;
 259
 260                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 261                         boost::shared_ptr<Playlist> pl;
 262
 263                         if ((pl = rtv->playlist()) == 0) {
 264                                 return region;
 265                         }
 266
 267                         region = pl->top_region_at (start);
 268                 }
 269         }
 270
 271         return region;
 272 }
 273
 274 void
 275 Editor::extend_selection_to_end_of_region (bool next)
 276 {
 277         TimeAxisView *tv;
 278         boost::shared_ptr<Region> region;
 279         nframes_t start;
 280
 281         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 282                 return;
 283         }
 284
 285         if (region && selection->time.start () == selection->time.end_frame ()) {
 286                 start = region->position();
 287         } else {
 288                 start = selection->time.start ();
 289         }
 290
 291         /* Try to leave the selection with the same route if possible */
 292
 293         if ((tv = selection->time.track) == 0) {
 294                 return;
 295         }
 296
 297         begin_reversible_command (_("extend selection"));
 298         selection->set (tv, start, region->position() + region->length());
 299         commit_reversible_command ();
 300 }
 301
 302 void
 303 Editor::extend_selection_to_start_of_region (bool previous)
 304 {
 305         TimeAxisView *tv;
 306         boost::shared_ptr<Region> region;
 307         nframes_t end;
 308
 309         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 310                 return;
 311         }
 312
 313         if (region && selection->time.start () == selection->time.end_frame ()) {
 314                 end = region->position() + region->length();
 315         } else {
 316                 end = selection->time.end_frame ();
 317         }
 318
 319         /* Try to leave the selection with the same route if possible */
 320
 321         if ((tv = selection->time.track) == 0) {
 322                 return;
 323         }
 324
 325         begin_reversible_command (_("extend selection"));
 326         selection->set (tv, region->position(), end);
 327         commit_reversible_command ();
 328 }
 329
 330
 331 void
 332 Editor::nudge_forward (bool next)
 333 {
 334         nframes_t distance;
 335         nframes_t next_distance;
 336
 337         if (!session) return;
 338
 339         if (!selection->regions.empty()) {
 340
 341                 begin_reversible_command (_("nudge forward"));
 342
 343                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 344                         boost::shared_ptr<Region> r ((*i)->region());
 345
 346                         distance = get_nudge_distance (r->position(), next_distance);
 347
 348                         if (next) {
 349                                 distance = next_distance;
 350                         }
 351
 352                         XMLNode &before = r->playlist()->get_state();
 353                         r->set_position (r->position() + distance, this);
 354                         XMLNode &after = r->playlist()->get_state();
 355                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 356                 }
 357
 358                 commit_reversible_command ();
 359
 360
 361         } else if (!selection->markers.empty()) {
 362
 363                 bool ignored;
 364                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
 365
 366                 if (loc) {
 367                         distance = get_nudge_distance (loc->start(), next_distance);
 368                         loc->set_start (loc->start() + distance);
 369                 }
 370
 371         } else {
 372                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 373                 session->request_locate (playhead_cursor->current_frame + distance);
 374         }
 375 }
 376
 377 void
 378 Editor::nudge_backward (bool next)
 379 {
 380         nframes_t distance;
 381         nframes_t next_distance;
 382
 383         if (!session) return;
 384
 385         if (!selection->regions.empty()) {
 386
 387                 begin_reversible_command (_("nudge forward"));
 388
 389                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 390                         boost::shared_ptr<Region> r ((*i)->region());
 391
 392                         distance = get_nudge_distance (r->position(), next_distance);
 393
 394                         if (next) {
 395                                 distance = next_distance;
 396                         }
 397
 398                         XMLNode &before = r->playlist()->get_state();
 399
 400                         if (r->position() > distance) {
 401                                 r->set_position (r->position() - distance, this);
 402                         } else {
 403                                 r->set_position (0, this);
 404                         }
 405                         XMLNode &after = r->playlist()->get_state();
 406                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 407                 }
 408
 409                 commit_reversible_command ();
 410
 411         } else {
 412
 413                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 414
 415                 if (playhead_cursor->current_frame > distance) {
 416                         session->request_locate (playhead_cursor->current_frame - distance);
 417                 } else {
 418                         session->goto_start();
 419                 }
 420         }
 421 }
 422
 423 void
 424 Editor::nudge_forward_capture_offset ()
 425 {
 426         nframes_t distance;
 427
 428         if (!session) return;
 429
 430         if (!selection->regions.empty()) {
 431
 432                 begin_reversible_command (_("nudge forward"));
 433
 434                 distance = session->worst_output_latency();
 435
 436                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 437                         boost::shared_ptr<Region> r ((*i)->region());
 438
 439                         XMLNode &before = r->playlist()->get_state();
 440                         r->set_position (r->position() + distance, this);
 441                         XMLNode &after = r->playlist()->get_state();
 442                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 443                 }
 444
 445                 commit_reversible_command ();
 446
 447         }
 448 }
 449
 450 void
 451 Editor::nudge_backward_capture_offset ()
 452 {
 453         nframes_t distance;
 454
 455         if (!session) return;
 456
 457         if (!selection->regions.empty()) {
 458
 459                 begin_reversible_command (_("nudge forward"));
 460
 461                 distance = session->worst_output_latency();
 462
 463                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 464                         boost::shared_ptr<Region> r ((*i)->region());
 465
 466                         XMLNode &before = r->playlist()->get_state();
 467
 468                         if (r->position() > distance) {
 469                                 r->set_position (r->position() - distance, this);
 470                         } else {
 471                                 r->set_position (0, this);
 472                         }
 473                         XMLNode &after = r->playlist()->get_state();
 474                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 475                 }
 476
 477                 commit_reversible_command ();
 478         }
 479 }
 480
 481 /* DISPLAY MOTION */
 482
 483 void
 484 Editor::move_to_start ()
 485 {
 486         session->goto_start ();
 487 }
 488
 489 void
 490 Editor::move_to_end ()
 491 {
 492
 493         session->request_locate (session->current_end_frame());
 494 }
 495
 496 void
 497 Editor::build_region_boundary_cache ()
 498 {
 499         nframes_t pos = 0;
 500         vector<RegionPoint> interesting_points;
 501         boost::shared_ptr<Region> r;
 502         TrackViewList tracks;
 503         bool at_end = false;
 504
 505         region_boundary_cache.clear ();
 506
 507         if (session == 0) {
 508                 return;
 509         }
 510
 511         switch (snap_type) {
 512         case SnapToRegionStart:
 513                 interesting_points.push_back (Start);
 514                 break;
 515         case SnapToRegionEnd:
 516                 interesting_points.push_back (End);
 517                 break;
 518         case SnapToRegionSync:
 519                 interesting_points.push_back (SyncPoint);
 520                 break;
 521         case SnapToRegionBoundary:
 522                 interesting_points.push_back (Start);
 523                 interesting_points.push_back (End);
 524                 break;
 525         default:
 526                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 527                 /*NOTREACHED*/
 528                 return;
 529         }
 530
 531         TimeAxisView *ontrack = 0;
 532         TrackViewList tlist;
 533
 534         if (!selection->tracks.empty()) {
 535                 tlist = selection->tracks;
 536         } else {
 537                 tlist = track_views;
 538         }
 539
 540         while (pos < session->current_end_frame() && !at_end) {
 541
 542                 nframes_t rpos;
 543                 nframes_t lpos = max_frames;
 544
 545                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 546
 547                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 548                                 if (*p == interesting_points.back()) {
 549                                         at_end = true;
 550                                 }
 551                                 /* move to next point type */
 552                                 continue;
 553                         }
 554
 555                         switch (*p) {
 556                         case Start:
 557                                 rpos = r->first_frame();
 558                                 break;
 559
 560                         case End:
 561                                 rpos = r->last_frame();
 562                                 break;
 563
 564                         case SyncPoint:
 565                                 rpos = r->adjust_to_sync (r->first_frame());
 566                                 break;
 567
 568                         default:
 569                                 break;
 570                         }
 571
 572                         float speed = 1.0f;
 573                         AudioTimeAxisView *atav;
 574
 575                         if (ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 576                                 if (atav->get_diskstream() != 0) {
 577                                         speed = atav->get_diskstream()->speed();
 578                                 }
 579                         }
 580
 581                         rpos = track_frame_to_session_frame (rpos, speed);
 582
 583                         if (rpos < lpos) {
 584                                 lpos = rpos;
 585                         }
 586
 587                         /* prevent duplicates, but we don't use set<> because we want to be able
 588                            to sort later.
 589                         */
 590
 591                         vector<nframes_t>::iterator ri;
 592
 593                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 594                                 if (*ri == rpos) {
 595                                         break;
 596                                 }
 597                         }
 598
 599                         if (ri == region_boundary_cache.end()) {
 600                                 region_boundary_cache.push_back (rpos);
 601                         }
 602                 }
 603
 604                 pos = lpos + 1;
 605         }
 606
 607         /* finally sort to be sure that the order is correct */
 608
 609         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 610 }
 611
 612 boost::shared_ptr<Region>
 613 Editor::find_next_region (nframes_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 614 {
 615         TrackViewList::iterator i;
 616         nframes_t closest = max_frames;
 617         boost::shared_ptr<Region> ret;
 618         nframes_t rpos = 0;
 619
 620         float track_speed;
 621         nframes_t track_frame;
 622         AudioTimeAxisView *atav;
 623
 624         for (i = tracks.begin(); i != tracks.end(); ++i) {
 625
 626                 nframes_t distance;
 627                 boost::shared_ptr<Region> r;
 628
 629                 track_speed = 1.0f;
 630                 if ( (atav = dynamic_cast<AudioTimeAxisView*>(*i)) != 0 ) {
 631                         if (atav->get_diskstream()!=0)
 632                                 track_speed = atav->get_diskstream()->speed();
 633                 }
 634
 635                 track_frame = session_frame_to_track_frame(frame, track_speed);
 636
 637                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 638                         continue;
 639                 }
 640
 641                 switch (point) {
 642                 case Start:
 643                         rpos = r->first_frame ();
 644                         break;
 645
 646                 case End:
 647                         rpos = r->last_frame ();
 648                         break;
 649
 650                 case SyncPoint:
 651                         rpos = r->adjust_to_sync (r->first_frame());
 652                         break;
 653                 }
 654
 655                 // rpos is a "track frame", converting it to "session frame"
 656                 rpos = track_frame_to_session_frame(rpos, track_speed);
 657
 658                 if (rpos > frame) {
 659                         distance = rpos - frame;
 660                 } else {
 661                         distance = frame - rpos;
 662                 }
 663
 664                 if (distance < closest) {
 665                         closest = distance;
 666                         if (ontrack != 0)
 667                                 *ontrack = (*i);
 668                         ret = r;
 669                 }
 670         }
 671
 672         return ret;
 673 }
 674
 675 nframes64_t
 676 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 677 {
 678         nframes64_t distance = max_frames;
 679         nframes64_t current_nearest = -1;
 680
 681         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 682                 nframes64_t contender;
 683                 nframes64_t d;
 684
 685                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 686
 687                 if (!rtv) {
 688                         continue;
 689                 }
 690
 691                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 692                         continue;
 693                 }
 694
 695                 d = ::llabs (pos - contender);
 696
 697                 if (d < distance) {
 698                         current_nearest = contender;
 699                         distance = d;
 700                 }
 701         }
 702
 703         return current_nearest;
 704 }
 705
 706 void
 707 Editor::cursor_to_region_boundary (Cursor* cursor, int32_t dir)
 708 {
 709         nframes64_t pos = cursor->current_frame;
 710         nframes64_t target;
 711
 712         if (!session) {
 713                 return;
 714         }
 715
 716         // so we don't find the current region again..
 717         if (dir > 0 || pos > 0) {
 718                 pos += dir;
 719         }
 720
 721         if (!selection->tracks.empty()) {
 722
 723                 target = find_next_region_boundary (pos, dir, selection->tracks);
 724
 725         } else {
 726
 727                 target = find_next_region_boundary (pos, dir, track_views);
 728         }
 729
 730         if (target < 0) {
 731                 return;
 732         }
 733
 734
 735         if (cursor == playhead_cursor) {
 736                 session->request_locate (target);
 737         } else {
 738                 cursor->set_position (target);
 739         }
 740 }
 741
 742 void
 743 Editor::cursor_to_next_region_boundary (Cursor* cursor)
 744 {
 745         cursor_to_region_boundary (cursor, 1);
 746 }
 747
 748 void
 749 Editor::cursor_to_previous_region_boundary (Cursor* cursor)
 750 {
 751         cursor_to_region_boundary (cursor, -1);
 752 }
 753
 754 void
 755 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 756 {
 757         boost::shared_ptr<Region> r;
 758         nframes_t pos = cursor->current_frame;
 759
 760         if (!session) {
 761                 return;
 762         }
 763
 764         TimeAxisView *ontrack = 0;
 765
 766         // so we don't find the current region again..
 767         if (dir>0 || pos>0)
 768                 pos+=dir;
 769
 770         if (!selection->tracks.empty()) {
 771
 772                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 773
 774         } else if (clicked_trackview) {
 775
 776                 TrackViewList t;
 777                 t.push_back (clicked_trackview);
 778
 779                 r = find_next_region (pos, point, dir, t, &ontrack);
 780
 781         } else {
 782
 783                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 784         }
 785
 786         if (r == 0) {
 787                 return;
 788         }
 789
 790         switch (point){
 791         case Start:
 792                 pos = r->first_frame ();
 793                 break;
 794
 795         case End:
 796                 pos = r->last_frame ();
 797                 break;
 798
 799         case SyncPoint:
 800                 pos = r->adjust_to_sync (r->first_frame());
 801                 break;
 802         }
 803
 804         float speed = 1.0f;
 805         AudioTimeAxisView *atav;
 806
 807         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 808                 if (atav->get_diskstream() != 0) {
 809                         speed = atav->get_diskstream()->speed();
 810                 }
 811         }
 812
 813         pos = track_frame_to_session_frame(pos, speed);
 814
 815         if (cursor == playhead_cursor) {
 816                 session->request_locate (pos);
 817         } else {
 818                 cursor->set_position (pos);
 819         }
 820 }
 821
 822 void
 823 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 824 {
 825         cursor_to_region_point (cursor, point, 1);
 826 }
 827
 828 void
 829 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 830 {
 831         cursor_to_region_point (cursor, point, -1);
 832 }
 833
 834 void
 835 Editor::cursor_to_selection_start (Cursor *cursor)
 836 {
 837         nframes_t pos = 0;
 838         switch (mouse_mode) {
 839         case MouseObject:
 840                 if (!selection->regions.empty()) {
 841                         pos = selection->regions.start();
 842                 }
 843                 break;
 844
 845         case MouseRange:
 846                 if (!selection->time.empty()) {
 847                         pos = selection->time.start ();
 848                 }
 849                 break;
 850
 851         default:
 852                 return;
 853         }
 854
 855         if (cursor == playhead_cursor) {
 856                 session->request_locate (pos);
 857         } else {
 858                 cursor->set_position (pos);
 859         }
 860 }
 861
 862 void
 863 Editor::cursor_to_selection_end (Cursor *cursor)
 864 {
 865         nframes_t pos = 0;
 866
 867         switch (mouse_mode) {
 868         case MouseObject:
 869                 if (!selection->regions.empty()) {
 870                         pos = selection->regions.end_frame();
 871                 }
 872                 break;
 873
 874         case MouseRange:
 875                 if (!selection->time.empty()) {
 876                         pos = selection->time.end_frame ();
 877                 }
 878                 break;
 879
 880         default:
 881                 return;
 882         }
 883
 884         if (cursor == playhead_cursor) {
 885                 session->request_locate (pos);
 886         } else {
 887                 cursor->set_position (pos);
 888         }
 889 }
 890
 891 void
 892 Editor::selected_marker_to_region_boundary (int32_t dir)
 893 {
 894         nframes64_t target;
 895         Location* loc;
 896         bool ignored;
 897
 898         if (!session) {
 899                 return;
 900         }
 901
 902         if (selection->markers.empty()) {
 903                 nframes64_t mouse;
 904                 bool ignored;
 905
 906                 if (!mouse_frame (mouse, ignored)) {
 907                         return;
 908                 }
 909
 910                 add_location_mark (mouse);
 911         }
 912
 913         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
 914                 return;
 915         }
 916
 917         nframes64_t pos = loc->start();
 918
 919         // so we don't find the current region again..
 920         if (dir > 0 || pos > 0) {
 921                 pos += dir;
 922         }
 923
 924         if (!selection->tracks.empty()) {
 925
 926                 target = find_next_region_boundary (pos, dir, selection->tracks);
 927
 928         } else {
 929
 930                 target = find_next_region_boundary (pos, dir, track_views);
 931         }
 932
 933         if (target < 0) {
 934                 return;
 935         }
 936
 937         loc->move_to (target);
 938 }
 939
 940 void
 941 Editor::selected_marker_to_next_region_boundary ()
 942 {
 943         selected_marker_to_region_boundary (1);
 944 }
 945
 946 void
 947 Editor::selected_marker_to_previous_region_boundary ()
 948 {
 949         selected_marker_to_region_boundary (-1);
 950 }
 951
 952 void
 953 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
 954 {
 955         boost::shared_ptr<Region> r;
 956         nframes_t pos;
 957         Location* loc;
 958         bool ignored;
 959
 960         if (!session || selection->markers.empty()) {
 961                 return;
 962         }
 963
 964         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
 965                 return;
 966         }
 967
 968         TimeAxisView *ontrack = 0;
 969
 970         pos = loc->start();
 971
 972         // so we don't find the current region again..
 973         if (dir>0 || pos>0)
 974                 pos+=dir;
 975
 976         if (!selection->tracks.empty()) {
 977
 978                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 979
 980         } else if (clicked_trackview) {
 981
 982                 TrackViewList t;
 983                 t.push_back (clicked_trackview);
 984
 985                 r = find_next_region (pos, point, dir, t, &ontrack);
 986
 987         } else {
 988
 989                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 990         }
 991
 992         if (r == 0) {
 993                 return;
 994         }
 995
 996         switch (point){
 997         case Start:
 998                 pos = r->first_frame ();
 999                 break;
1000
1001         case End:
1002                 pos = r->last_frame ();
1003                 break;
1004
1005         case SyncPoint:
1006                 pos = r->adjust_to_sync (r->first_frame());
1007                 break;
1008         }
1009
1010         float speed = 1.0f;
1011         AudioTimeAxisView *atav;
1012
1013         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1014                 if (atav->get_diskstream() != 0) {
1015                         speed = atav->get_diskstream()->speed();
1016                 }
1017         }
1018
1019         pos = track_frame_to_session_frame(pos, speed);
1020
1021         loc->move_to (pos);
1022 }
1023
1024 void
1025 Editor::selected_marker_to_next_region_point (RegionPoint point)
1026 {
1027         selected_marker_to_region_point (point, 1);
1028 }
1029
1030 void
1031 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1032 {
1033         selected_marker_to_region_point (point, -1);
1034 }
1035
1036 void
1037 Editor::selected_marker_to_selection_start ()
1038 {
1039         nframes_t pos = 0;
1040         Location* loc;
1041         bool ignored;
1042
1043         if (!session || selection->markers.empty()) {
1044                 return;
1045         }
1046
1047         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1048                 return;
1049         }
1050
1051         switch (mouse_mode) {
1052         case MouseObject:
1053                 if (!selection->regions.empty()) {
1054                         pos = selection->regions.start();
1055                 }
1056                 break;
1057
1058         case MouseRange:
1059                 if (!selection->time.empty()) {
1060                         pos = selection->time.start ();
1061                 }
1062                 break;
1063
1064         default:
1065                 return;
1066         }
1067
1068         loc->move_to (pos);
1069 }
1070
1071 void
1072 Editor::selected_marker_to_selection_end ()
1073 {
1074         nframes_t pos = 0;
1075         Location* loc;
1076         bool ignored;
1077
1078         if (!session || selection->markers.empty()) {
1079                 return;
1080         }
1081
1082         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1083                 return;
1084         }
1085
1086         switch (mouse_mode) {
1087         case MouseObject:
1088                 if (!selection->regions.empty()) {
1089                         pos = selection->regions.end_frame();
1090                 }
1091                 break;
1092
1093         case MouseRange:
1094                 if (!selection->time.empty()) {
1095                         pos = selection->time.end_frame ();
1096                 }
1097                 break;
1098
1099         default:
1100                 return;
1101         }
1102
1103         loc->move_to (pos);
1104 }
1105
1106 void
1107 Editor::scroll_playhead (bool forward)
1108 {
1109         nframes_t pos = playhead_cursor->current_frame;
1110         nframes_t delta = (nframes_t) floor (current_page_frames() / 0.8);
1111
1112         if (forward) {
1113                 if (pos == max_frames) {
1114                         return;
1115                 }
1116
1117                 if (pos < max_frames - delta) {
1118                         pos += delta ;
1119                 } else {
1120                         pos = max_frames;
1121                 }
1122
1123         } else {
1124
1125                 if (pos == 0) {
1126                         return;
1127                 }
1128
1129                 if (pos > delta) {
1130                         pos -= delta;
1131                 } else {
1132                         pos = 0;
1133                 }
1134         }
1135
1136         session->request_locate (pos);
1137 }
1138
1139 void
1140 Editor::playhead_backward ()
1141 {
1142         nframes_t pos;
1143         nframes_t cnt;
1144         float prefix;
1145         bool was_floating;
1146
1147         if (get_prefix (prefix, was_floating)) {
1148                 cnt = 1;
1149         } else {
1150                 if (was_floating) {
1151                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1152                 } else {
1153                         cnt = (nframes_t) prefix;
1154                 }
1155         }
1156
1157         pos = playhead_cursor->current_frame;
1158
1159         if ((nframes_t) pos < cnt) {
1160                 pos = 0;
1161         } else {
1162                 pos -= cnt;
1163         }
1164
1165         /* XXX this is completely insane. with the current buffering
1166            design, we'll force a complete track buffer flush and
1167            reload, just to move 1 sample !!!
1168         */
1169
1170         session->request_locate (pos);
1171 }
1172
1173 void
1174 Editor::playhead_forward ()
1175 {
1176         nframes_t pos;
1177         nframes_t cnt;
1178         bool was_floating;
1179         float prefix;
1180
1181         if (get_prefix (prefix, was_floating)) {
1182                 cnt = 1;
1183         } else {
1184                 if (was_floating) {
1185                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1186                 } else {
1187                         cnt = (nframes_t) floor (prefix);
1188                 }
1189         }
1190
1191         pos = playhead_cursor->current_frame;
1192
1193         /* XXX this is completely insane. with the current buffering
1194            design, we'll force a complete track buffer flush and
1195            reload, just to move 1 sample !!!
1196         */
1197
1198         session->request_locate (pos+cnt);
1199 }
1200
1201 void
1202 Editor::cursor_align (bool playhead_to_edit)
1203 {
1204         if (!session) {
1205                 return;
1206         }
1207
1208         if (playhead_to_edit) {
1209
1210                 if (selection->markers.empty()) {
1211                         return;
1212                 }
1213
1214                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1215
1216         } else {
1217
1218                 /* move selected markers to playhead */
1219
1220                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1221                         bool ignored;
1222
1223                         Location* loc = find_location_from_marker (*i, ignored);
1224
1225                         if (loc->is_mark()) {
1226                                 loc->set_start (playhead_cursor->current_frame);
1227                         } else {
1228                                 loc->set (playhead_cursor->current_frame,
1229                                           playhead_cursor->current_frame + loc->length());
1230                         }
1231                 }
1232         }
1233 }
1234
1235 void
1236 Editor::edit_cursor_backward ()
1237 {
1238         nframes64_t pos;
1239         nframes64_t cnt;
1240         float prefix;
1241         bool was_floating;
1242
1243         if (get_prefix (prefix, was_floating)) {
1244                 cnt = 1;
1245         } else {
1246                 if (was_floating) {
1247                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1248                 } else {
1249                         cnt = (nframes_t) prefix;
1250                 }
1251         }
1252
1253         if ((pos = get_preferred_edit_position()) < 0) {
1254                 return;
1255         }
1256
1257         if (pos < cnt) {
1258                 pos = 0;
1259         } else {
1260                 pos -= cnt;
1261         }
1262
1263         // EDIT CURSOR edit_cursor->set_position (pos);
1264 }
1265
1266 void
1267 Editor::edit_cursor_forward ()
1268 {
1269         //nframes_t pos;
1270         nframes_t cnt;
1271         bool was_floating;
1272         float prefix;
1273
1274         if (get_prefix (prefix, was_floating)) {
1275                 cnt = 1;
1276         } else {
1277                 if (was_floating) {
1278                         cnt = (nframes_t) floor (prefix * session->frame_rate ());
1279                 } else {
1280                         cnt = (nframes_t) floor (prefix);
1281                 }
1282         }
1283
1284         // pos = edit_cursor->current_frame;
1285         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1286 }
1287
1288 void
1289 Editor::goto_frame ()
1290 {
1291         float prefix;
1292         bool was_floating;
1293         nframes_t frame;
1294
1295         if (get_prefix (prefix, was_floating)) {
1296                 return;
1297         }
1298
1299         if (was_floating) {
1300                 frame = (nframes_t) floor (prefix * session->frame_rate());
1301         } else {
1302                 frame = (nframes_t) floor (prefix);
1303         }
1304
1305         session->request_locate (frame);
1306 }
1307
1308 void
1309 Editor::scroll_backward (float pages)
1310 {
1311         nframes_t frame;
1312         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
1313         bool was_floating;
1314         float prefix;
1315         nframes_t cnt;
1316
1317         if (get_prefix (prefix, was_floating)) {
1318                 cnt = (nframes_t) floor (pages * one_page);
1319         } else {
1320                 if (was_floating) {
1321                         cnt = (nframes_t) floor (prefix * session->frame_rate());
1322                 } else {
1323                         cnt = (nframes_t) floor (prefix * one_page);
1324                 }
1325         }
1326
1327         if (leftmost_frame < cnt) {
1328                 frame = 0;
1329         } else {
1330                 frame = leftmost_frame - cnt;
1331         }
1332
1333         reset_x_origin (frame);
1334 }
1335
1336 void
1337 Editor::scroll_forward (float pages)
1338 {
1339         nframes_t frame;
1340         nframes_t one_page = (nframes_t) rint (canvas_width * frames_per_unit);
1341         bool was_floating;
1342         float prefix;
1343         nframes_t cnt;
1344
1345         if (get_prefix (prefix, was_floating)) {
1346                 cnt = (nframes_t) floor (pages * one_page);
1347         } else {
1348                 if (was_floating) {
1349                         cnt = (nframes_t) floor (prefix * session->frame_rate());
1350                 } else {
1351                         cnt = (nframes_t) floor (prefix * one_page);
1352                 }
1353         }
1354
1355         if (max_frames - cnt < leftmost_frame) {
1356                 frame = max_frames - cnt;
1357         } else {
1358                 frame = leftmost_frame + cnt;
1359         }
1360
1361         reset_x_origin (frame);
1362 }
1363
1364 void
1365 Editor::scroll_tracks_down ()
1366 {
1367         float prefix;
1368         bool was_floating;
1369         int cnt;
1370
1371         if (get_prefix (prefix, was_floating)) {
1372                 cnt = 1;
1373         } else {
1374                 cnt = (int) floor (prefix);
1375         }
1376
1377         double vert_value = vertical_adjustment.get_value() + (cnt *
1378                 vertical_adjustment.get_page_size());
1379         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1380                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1381         }
1382         vertical_adjustment.set_value (vert_value);
1383 }
1384
1385 void
1386 Editor::scroll_tracks_up ()
1387 {
1388         float prefix;
1389         bool was_floating;
1390         int cnt;
1391
1392         if (get_prefix (prefix, was_floating)) {
1393                 cnt = 1;
1394         } else {
1395                 cnt = (int) floor (prefix);
1396         }
1397
1398         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1399 }
1400
1401 void
1402 Editor::scroll_tracks_down_line ()
1403 {
1404
1405         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1406         double vert_value = adj->get_value() + 20;
1407
1408         if (vert_value>adj->get_upper() - canvas_height) {
1409                 vert_value = adj->get_upper() - canvas_height;
1410         }
1411         adj->set_value (vert_value);
1412 }
1413
1414 void
1415 Editor::scroll_tracks_up_line ()
1416 {
1417         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1418         adj->set_value (adj->get_value() - 20);
1419 }
1420
1421 /* ZOOM */
1422
1423 void
1424 Editor::temporal_zoom_step (bool coarser)
1425 {
1426         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1427
1428         double nfpu;
1429
1430         nfpu = frames_per_unit;
1431
1432         if (coarser) {
1433                 nfpu *= 1.61803399;
1434         } else {
1435                 nfpu = max(1.0,(nfpu/1.61803399));
1436         }
1437
1438         temporal_zoom (nfpu);
1439 }
1440
1441 void
1442 Editor::temporal_zoom (gdouble fpu)
1443 {
1444         if (!session) return;
1445
1446         nframes64_t current_page = current_page_frames();
1447         nframes64_t current_leftmost = leftmost_frame;
1448         nframes64_t current_rightmost;
1449         nframes64_t current_center;
1450         nframes64_t new_page;
1451         nframes64_t leftmost_after_zoom = 0;
1452         nframes64_t where;
1453         bool in_track_canvas;
1454         double nfpu;
1455
1456         nfpu = fpu;
1457
1458         new_page = (nframes_t) floor (canvas_width * nfpu);
1459
1460         switch (zoom_focus) {
1461         case ZoomFocusLeft:
1462                 leftmost_after_zoom = current_leftmost;
1463                 break;
1464
1465         case ZoomFocusRight:
1466                 current_rightmost = leftmost_frame + current_page;
1467                 if (current_rightmost > new_page) {
1468                         leftmost_after_zoom = current_rightmost - new_page;
1469                 } else {
1470                         leftmost_after_zoom = 0;
1471                 }
1472                 break;
1473
1474         case ZoomFocusCenter:
1475                 current_center = current_leftmost + (current_page/2);
1476                 if (current_center > (new_page/2)) {
1477                         leftmost_after_zoom = current_center - (new_page / 2);
1478                 } else {
1479                         leftmost_after_zoom = 0;
1480                 }
1481                 break;
1482
1483         case ZoomFocusPlayhead:
1484                 /* try to keep the playhead in the center */
1485                 if (playhead_cursor->current_frame > new_page/2) {
1486                         leftmost_after_zoom = playhead_cursor->current_frame - (new_page/2);
1487                 } else {
1488                         leftmost_after_zoom = 0;
1489                 }
1490                 break;
1491
1492         case ZoomFocusMouse:
1493                 /* try to keep the mouse over the same point in the display */
1494
1495                 if (!mouse_frame (where, in_track_canvas)) {
1496                         /* use playhead instead */
1497                         where = playhead_cursor->current_frame;
1498
1499                         if (where > new_page/2) {
1500                                 leftmost_after_zoom = where - (new_page/2);
1501                         } else {
1502                                 leftmost_after_zoom = 0;
1503                         }
1504
1505                 } else {
1506
1507                         double l = - ((new_page * ((where - current_leftmost)/(double)current_page)) - where);
1508
1509                         if (l < 0) {
1510                                 leftmost_after_zoom = 0;
1511                         } else if (l > max_frames) {
1512                                 leftmost_after_zoom = max_frames - new_page;
1513                         } else {
1514                                 leftmost_after_zoom = (nframes64_t) l;
1515                         }
1516                 }
1517
1518                 break;
1519
1520         case ZoomFocusEdit:
1521                 /* try to keep the edit point in the center */
1522                 if (get_preferred_edit_position() > new_page/2) {
1523                         leftmost_after_zoom = get_preferred_edit_position() - (new_page/2);
1524                 } else {
1525                         leftmost_after_zoom = 0;
1526                 }
1527                 break;
1528
1529         }
1530
1531         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1532
1533 //      begin_reversible_command (_("zoom"));
1534 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), current_leftmost, frames_per_unit));
1535 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_after_zoom, nfpu));
1536 //      commit_reversible_command ();
1537
1538         // cerr << "repos & zoom to " << leftmost_after_zoom << " @ " << nfpu << endl;
1539
1540         reposition_and_zoom (leftmost_after_zoom, nfpu);
1541 }
1542
1543 void
1544 Editor::temporal_zoom_region ()
1545 {
1546
1547         nframes64_t start = max_frames;
1548         nframes64_t end = 0;
1549
1550         ensure_entered_region_selected (true);
1551
1552         if (selection->regions.empty()) {
1553                 info << _("cannot set loop: no region selected") << endmsg;
1554                 return;
1555         }
1556
1557         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
1558                 if ((*i)->region()->position() < start) {
1559                         start = (*i)->region()->position();
1560                 }
1561                 if ((*i)->region()->last_frame() + 1 > end) {
1562                         end = (*i)->region()->last_frame() + 1;
1563                 }
1564         }
1565
1566         /* now comes an "interesting" hack ... make sure we leave a little space
1567            at each end of the editor so that the zoom doesn't fit the region
1568            precisely to the screen.
1569         */
1570
1571         GdkScreen* screen = gdk_screen_get_default ();
1572         gint pixwidth = gdk_screen_get_width (screen);
1573         gint mmwidth = gdk_screen_get_width_mm (screen);
1574         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1575         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1576         nframes_t extra_samples = unit_to_frame (one_centimeter_in_pixels);
1577
1578         if (start > extra_samples) {
1579                 start -= extra_samples;
1580         } else {
1581                 start = 0;
1582         }
1583
1584         if (max_frames - extra_samples > end) {
1585                 end += extra_samples;
1586         } else {
1587                 end = max_frames;
1588         }
1589
1590         temporal_zoom_by_frame (start, end, "zoom to region");
1591         zoomed_to_region = true;
1592 }
1593
1594 void
1595 Editor::toggle_zoom_region ()
1596 {
1597         if (zoomed_to_region) {
1598                 swap_visual_state ();
1599         } else {
1600                 temporal_zoom_region ();
1601         }
1602 }
1603
1604 void
1605 Editor::temporal_zoom_selection ()
1606 {
1607         if (!selection) return;
1608
1609         if (selection->time.empty()) {
1610                 return;
1611         }
1612
1613         nframes_t start = selection->time[clicked_selection].start;
1614         nframes_t end = selection->time[clicked_selection].end;
1615
1616         temporal_zoom_by_frame (start, end, "zoom to selection");
1617 }
1618
1619 void
1620 Editor::temporal_zoom_session ()
1621 {
1622         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1623
1624         if (session) {
1625                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1626         }
1627 }
1628
1629 void
1630 Editor::temporal_zoom_by_frame (nframes_t start, nframes_t end, const string & op)
1631 {
1632         if (!session) return;
1633
1634         if ((start == 0 && end == 0) || end < start) {
1635                 return;
1636         }
1637
1638         nframes_t range = end - start;
1639
1640         double new_fpu = (double)range / (double)canvas_width;
1641 //      double p2 = 1.0;
1642
1643 //      while (p2 < new_fpu) {
1644 //              p2 *= 2.0;
1645 //      }
1646 //      new_fpu = p2;
1647
1648         nframes_t new_page = (nframes_t) floor (canvas_width * new_fpu);
1649         nframes_t middle = (nframes_t) floor( (double)start + ((double)range / 2.0f ));
1650         nframes_t new_leftmost = (nframes_t) floor( (double)middle - ((double)new_page/2.0f));
1651
1652         if (new_leftmost > middle) new_leftmost = 0;
1653
1654 //      begin_reversible_command (op);
1655 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1656 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1657 //      commit_reversible_command ();
1658
1659         reposition_and_zoom (new_leftmost, new_fpu);
1660 }
1661
1662 void
1663 Editor::temporal_zoom_to_frame (bool coarser, nframes_t frame)
1664 {
1665         if (!session) return;
1666
1667         double range_before = frame - leftmost_frame;
1668         double new_fpu;
1669
1670         new_fpu = frames_per_unit;
1671
1672         if (coarser) {
1673                 new_fpu *= 1.61803399;
1674                 range_before *= 1.61803399;
1675         } else {
1676                 new_fpu = max(1.0,(new_fpu/1.61803399));
1677                 range_before /= 1.61803399;
1678         }
1679
1680         if (new_fpu == frames_per_unit) return;
1681
1682         nframes_t new_leftmost = frame - (nframes_t)range_before;
1683
1684         if (new_leftmost > frame) new_leftmost = 0;
1685
1686 //      begin_reversible_command (_("zoom to frame"));
1687 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1688 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1689 //      commit_reversible_command ();
1690
1691         reposition_and_zoom (new_leftmost, new_fpu);
1692 }
1693
1694 void
1695 Editor::add_location_from_selection ()
1696 {
1697         string rangename;
1698
1699         if (selection->time.empty()) {
1700                 return;
1701         }
1702
1703         if (session == 0 || clicked_trackview == 0) {
1704                 return;
1705         }
1706
1707         nframes_t start = selection->time[clicked_selection].start;
1708         nframes_t end = selection->time[clicked_selection].end;
1709
1710         session->locations()->next_available_name(rangename,"selection");
1711         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1712
1713         session->begin_reversible_command (_("add marker"));
1714         XMLNode &before = session->locations()->get_state();
1715         session->locations()->add (location, true);
1716         XMLNode &after = session->locations()->get_state();
1717         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1718         session->commit_reversible_command ();
1719 }
1720
1721 void
1722 Editor::add_location_mark (nframes64_t where)
1723 {
1724         string markername;
1725
1726         select_new_marker = true;
1727
1728         session->locations()->next_available_name(markername,"mark");
1729         Location *location = new Location (where, where, markername, Location::IsMark);
1730         session->begin_reversible_command (_("add marker"));
1731         XMLNode &before = session->locations()->get_state();
1732         session->locations()->add (location, true);
1733         XMLNode &after = session->locations()->get_state();
1734         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1735         session->commit_reversible_command ();
1736 }
1737
1738 void
1739 Editor::add_location_from_playhead_cursor ()
1740 {
1741         add_location_mark (session->audible_frame());
1742 }
1743
1744 void
1745 Editor::add_location_from_audio_region ()
1746 {
1747         if (selection->regions.empty()) {
1748                 return;
1749         }
1750
1751         RegionView* rv = *(selection->regions.begin());
1752         boost::shared_ptr<Region> region = rv->region();
1753
1754         Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1755         session->begin_reversible_command (_("add marker"));
1756         XMLNode &before = session->locations()->get_state();
1757         session->locations()->add (location, true);
1758         XMLNode &after = session->locations()->get_state();
1759         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1760         session->commit_reversible_command ();
1761 }
1762
1763 void
1764 Editor::amplitude_zoom_step (bool in)
1765 {
1766         gdouble zoom = 1.0;
1767
1768         if (in) {
1769                 zoom *= 2.0;
1770         } else {
1771                 if (zoom > 2.0) {
1772                         zoom /= 2.0;
1773                 } else {
1774                         zoom = 1.0;
1775                 }
1776         }
1777
1778 #ifdef FIX_FOR_CANVAS
1779         /* XXX DO SOMETHING */
1780 #endif
1781 }
1782
1783
1784 /* DELETION */
1785
1786
1787 void
1788 Editor::delete_sample_forward ()
1789 {
1790 }
1791
1792 void
1793 Editor::delete_sample_backward ()
1794 {
1795 }
1796
1797 void
1798 Editor::delete_screen ()
1799 {
1800 }
1801
1802 /* SEARCH */
1803
1804 void
1805 Editor::search_backwards ()
1806 {
1807         /* what ? */
1808 }
1809
1810 void
1811 Editor::search_forwards ()
1812 {
1813         /* what ? */
1814 }
1815
1816 /* MARKS */
1817
1818 void
1819 Editor::jump_forward_to_mark ()
1820 {
1821         if (!session) {
1822                 return;
1823         }
1824
1825         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
1826
1827         if (location) {
1828                 session->request_locate (location->start(), session->transport_rolling());
1829         } else {
1830                 session->request_locate (session->current_end_frame());
1831         }
1832 }
1833
1834 void
1835 Editor::jump_backward_to_mark ()
1836 {
1837         if (!session) {
1838                 return;
1839         }
1840
1841         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
1842
1843         if (location) {
1844                 session->request_locate (location->start(), session->transport_rolling());
1845         } else {
1846                 session->goto_start ();
1847         }
1848 }
1849
1850 void
1851 Editor::set_mark ()
1852 {
1853         nframes_t pos;
1854         float prefix;
1855         bool was_floating;
1856         string markername;
1857
1858         if (get_prefix (prefix, was_floating)) {
1859                 pos = session->audible_frame ();
1860         } else {
1861                 if (was_floating) {
1862                         pos = (nframes_t) floor (prefix * session->frame_rate ());
1863                 } else {
1864                         pos = (nframes_t) floor (prefix);
1865                 }
1866         }
1867
1868         session->locations()->next_available_name(markername,"mark");
1869         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
1870 }
1871
1872 void
1873 Editor::clear_markers ()
1874 {
1875         if (session) {
1876                 session->begin_reversible_command (_("clear markers"));
1877                 XMLNode &before = session->locations()->get_state();
1878                 session->locations()->clear_markers ();
1879                 XMLNode &after = session->locations()->get_state();
1880                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1881                 session->commit_reversible_command ();
1882         }
1883 }
1884
1885 void
1886 Editor::clear_ranges ()
1887 {
1888         if (session) {
1889                 session->begin_reversible_command (_("clear ranges"));
1890                 XMLNode &before = session->locations()->get_state();
1891
1892                 Location * looploc = session->locations()->auto_loop_location();
1893                 Location * punchloc = session->locations()->auto_punch_location();
1894
1895                 session->locations()->clear_ranges ();
1896                 // re-add these
1897                 if (looploc) session->locations()->add (looploc);
1898                 if (punchloc) session->locations()->add (punchloc);
1899
1900                 XMLNode &after = session->locations()->get_state();
1901                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1902                 session->commit_reversible_command ();
1903         }
1904 }
1905
1906 void
1907 Editor::clear_locations ()
1908 {
1909         session->begin_reversible_command (_("clear locations"));
1910         XMLNode &before = session->locations()->get_state();
1911         session->locations()->clear ();
1912         XMLNode &after = session->locations()->get_state();
1913         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1914         session->commit_reversible_command ();
1915         session->locations()->clear ();
1916 }
1917
1918 void
1919 Editor::unhide_markers ()
1920 {
1921         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
1922                 Location *l = (*i).first;
1923                 if (l->is_hidden() && l->is_mark()) {
1924                         l->set_hidden(false, this);
1925                 }
1926         }
1927 }
1928
1929 void
1930 Editor::unhide_ranges ()
1931 {
1932         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
1933                 Location *l = (*i).first;
1934                 if (l->is_hidden() && l->is_range_marker()) {
1935                         l->set_hidden(false, this);
1936                 }
1937         }
1938 }
1939
1940 /* INSERT/REPLACE */
1941
1942 void
1943 Editor::insert_region_list_drag (boost::shared_ptr<AudioRegion> region, int x, int y)
1944 {
1945         double wx, wy;
1946         double cx, cy;
1947         TimeAxisView *tv;
1948         nframes_t where;
1949         AudioTimeAxisView *atv = 0;
1950         boost::shared_ptr<Playlist> playlist;
1951
1952         track_canvas.window_to_world (x, y, wx, wy);
1953         wx += horizontal_adjustment.get_value();
1954         wy += vertical_adjustment.get_value();
1955
1956         GdkEvent event;
1957         event.type = GDK_BUTTON_RELEASE;
1958         event.button.x = wx;
1959         event.button.y = wy;
1960
1961         where = event_frame (&event, &cx, &cy);
1962
1963         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
1964                 /* clearly outside canvas area */
1965                 return;
1966         }
1967
1968         if ((tv = trackview_by_y_position (cy)) == 0) {
1969                 return;
1970         }
1971
1972         if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) == 0) {
1973                 return;
1974         }
1975
1976         if ((playlist = atv->playlist()) == 0) {
1977                 return;
1978         }
1979
1980         snap_to (where);
1981
1982         begin_reversible_command (_("insert dragged region"));
1983         XMLNode &before = playlist->get_state();
1984         playlist->add_region (RegionFactory::create (region), where, 1.0);
1985         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
1986         commit_reversible_command ();
1987 }
1988
1989 void
1990 Editor::insert_region_list_selection (float times)
1991 {
1992         RouteTimeAxisView *tv = 0;
1993         boost::shared_ptr<Playlist> playlist;
1994
1995         if (clicked_audio_trackview != 0) {
1996                 tv = clicked_audio_trackview;
1997         } else if (!selection->tracks.empty()) {
1998                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
1999                         return;
2000                 }
2001         } else if (entered_track != 0) {
2002                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2003                         return;
2004                 }
2005         } else {
2006                 return;
2007         }
2008
2009         if ((playlist = tv->playlist()) == 0) {
2010                 return;
2011         }
2012
2013         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2014
2015         if (selected->count_selected_rows() != 1) {
2016                 return;
2017         }
2018
2019         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2020
2021         /* only one row selected, so rows.begin() is it */
2022
2023         TreeIter iter;
2024
2025         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2026
2027                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2028
2029                 begin_reversible_command (_("insert region"));
2030                 XMLNode &before = playlist->get_state();
2031                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2032                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2033                 commit_reversible_command ();
2034         }
2035 }
2036
2037 /* BUILT-IN EFFECTS */
2038
2039 void
2040 Editor::reverse_selection ()
2041 {
2042
2043 }
2044
2045 /* GAIN ENVELOPE EDITING */
2046
2047 void
2048 Editor::edit_envelope ()
2049 {
2050 }
2051
2052 /* PLAYBACK */
2053
2054 void
2055 Editor::transition_to_rolling (bool fwd)
2056 {
2057         if (!session) {
2058                 return;
2059         }
2060
2061         switch (Config->get_slave_source()) {
2062         case None:
2063         case JACK:
2064                 break;
2065         default:
2066                 /* transport controlled by the master */
2067                 return;
2068         }
2069
2070         if (session->is_auditioning()) {
2071                 session->cancel_audition ();
2072                 return;
2073         }
2074
2075         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2076 }
2077
2078 void
2079 Editor::toggle_playback (bool with_abort)
2080 {
2081         if (!session) {
2082                 return;
2083         }
2084
2085         switch (Config->get_slave_source()) {
2086         case None:
2087         case JACK:
2088                 break;
2089         default:
2090                 /* transport controlled by the master */
2091                 return;
2092         }
2093
2094         if (session->is_auditioning()) {
2095                 session->cancel_audition ();
2096                 return;
2097         }
2098
2099         if (session->transport_rolling()) {
2100                 session->request_stop (with_abort);
2101                 if (session->get_play_loop()) {
2102                         session->request_play_loop (false);
2103                 }
2104         } else {
2105                 session->request_transport_speed (1.0f);
2106         }
2107 }
2108
2109 void
2110 Editor::play_from_start ()
2111 {
2112         session->request_locate (session->current_start_frame(), true);
2113 }
2114
2115 void
2116 Editor::play_from_edit_point ()
2117 {
2118         session->request_locate (get_preferred_edit_position(), true);
2119 }
2120
2121 void
2122 Editor::play_from_edit_point_and_return ()
2123 {
2124         nframes64_t start_frame;
2125         nframes64_t return_frame;
2126
2127         /* don't reset the return frame if its already set */
2128
2129         if ((return_frame = session->requested_return_frame()) < 0) {
2130                 return_frame = session->audible_frame();
2131         }
2132
2133         start_frame = get_preferred_edit_position (true);
2134
2135         if (start_frame >= 0) {
2136                 session->request_roll_at_and_return (start_frame, return_frame);
2137         }
2138 }
2139
2140 void
2141 Editor::play_selection ()
2142 {
2143         if (selection->time.empty()) {
2144                 return;
2145         }
2146
2147         session->request_play_range (true);
2148 }
2149
2150 void
2151 Editor::loop_selected_region ()
2152 {
2153         if (!selection->regions.empty()) {
2154                 RegionView *rv = *(selection->regions.begin());
2155                 Location* tll;
2156
2157                 if ((tll = transport_loop_location()) != 0)  {
2158
2159                         tll->set (rv->region()->position(), rv->region()->last_frame());
2160
2161                         // enable looping, reposition and start rolling
2162
2163                         session->request_play_loop (true);
2164                         session->request_locate (tll->start(), false);
2165                         session->request_transport_speed (1.0f);
2166                 }
2167         }
2168 }
2169
2170 void
2171 Editor::play_location (Location& location)
2172 {
2173         if (location.start() <= location.end()) {
2174                 return;
2175         }
2176
2177         session->request_bounded_roll (location.start(), location.end());
2178 }
2179
2180 void
2181 Editor::loop_location (Location& location)
2182 {
2183         if (location.start() <= location.end()) {
2184                 return;
2185         }
2186
2187         Location* tll;
2188
2189         if ((tll = transport_loop_location()) != 0) {
2190                 tll->set (location.start(), location.end());
2191
2192                 // enable looping, reposition and start rolling
2193                 session->request_play_loop (true);
2194                 session->request_locate (tll->start(), true);
2195         }
2196 }
2197
2198 void
2199 Editor::raise_region ()
2200 {
2201         selection->foreach_region (&Region::raise);
2202 }
2203
2204 void
2205 Editor::raise_region_to_top ()
2206 {
2207         selection->foreach_region (&Region::raise_to_top);
2208 }
2209
2210 void
2211 Editor::lower_region ()
2212 {
2213         selection->foreach_region (&Region::lower);
2214 }
2215
2216 void
2217 Editor::lower_region_to_bottom ()
2218 {
2219         selection->foreach_region (&Region::lower_to_bottom);
2220 }
2221
2222 void
2223 Editor::edit_region ()
2224 {
2225         if (clicked_regionview == 0) {
2226                 return;
2227         }
2228
2229         clicked_regionview->show_region_editor ();
2230 }
2231
2232 void
2233 Editor::rename_region()
2234 {
2235         if (selection->regions.empty()) {
2236                 return;
2237         }
2238
2239         WindowTitle title (Glib::get_application_name());
2240         title += _("Rename Region");
2241
2242         ArdourDialog d (*this, title.get_string(), true, false);
2243         Entry entry;
2244         Label label (_("New name:"));
2245         HBox hbox;
2246
2247         hbox.set_spacing (6);
2248         hbox.pack_start (label, false, false);
2249         hbox.pack_start (entry, true, true);
2250
2251         d.get_vbox()->set_border_width (12);
2252         d.get_vbox()->pack_start (hbox, false, false);
2253
2254         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2255         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2256
2257         d.set_size_request (300, -1);
2258         d.set_position (Gtk::WIN_POS_MOUSE);
2259
2260         entry.set_text (selection->regions.front()->region()->name());
2261         entry.select_region (0, -1);
2262
2263         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2264
2265         d.show_all ();
2266
2267         entry.grab_focus();
2268
2269         int ret = d.run();
2270
2271         d.hide ();
2272
2273         if (ret == RESPONSE_OK) {
2274                 std::string str = entry.get_text();
2275                 strip_whitespace_edges (str);
2276                 if (!str.empty()) {
2277                         selection->regions.front()->region()->set_name (str);
2278                         redisplay_regions ();
2279                 }
2280         }
2281 }
2282
2283 void
2284 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2285 {
2286         if (session->is_auditioning()) {
2287                 session->cancel_audition ();
2288         }
2289
2290         // note: some potential for creativity here, because region doesn't
2291         // have to belong to the playlist that Route is handling
2292
2293         // bool was_soloed = route.soloed();
2294
2295         route.set_solo (true, this);
2296
2297         session->request_bounded_roll (region->position(), region->position() + region->length());
2298
2299         /* XXX how to unset the solo state ? */
2300 }
2301
2302 void
2303 Editor::play_selected_region ()
2304 {
2305         nframes64_t start = max_frames;
2306         nframes64_t end = 0;
2307
2308         ensure_entered_region_selected (true);
2309
2310         if (selection->regions.empty()) {
2311                 return;
2312         }
2313
2314         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2315                 if ((*i)->region()->position() < start) {
2316                         start = (*i)->region()->position();
2317                 }
2318                 if ((*i)->region()->last_frame() + 1 > end) {
2319                         end = (*i)->region()->last_frame() + 1;
2320                 }
2321         }
2322
2323         session->request_bounded_roll (start, end);
2324 }
2325
2326 void
2327 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2328 {
2329         session->audition_region (region);
2330 }
2331
2332 void
2333 Editor::build_interthread_progress_window ()
2334 {
2335         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2336
2337         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2338
2339         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2340         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2341
2342         // GTK2FIX: this button needs a modifiable label
2343
2344         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2345         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2346
2347         interthread_cancel_button.add (interthread_cancel_label);
2348
2349         interthread_progress_window->set_default_size (200, 100);
2350 }
2351
2352 void
2353 Editor::interthread_cancel_clicked ()
2354 {
2355         if (current_interthread_info) {
2356                 current_interthread_info->cancel = true;
2357         }
2358 }
2359
2360 void
2361 Editor::region_from_selection ()
2362 {
2363         if (clicked_trackview == 0) {
2364                 return;
2365         }
2366
2367         if (selection->time.empty()) {
2368                 return;
2369         }
2370
2371         nframes_t start = selection->time[clicked_selection].start;
2372         nframes_t end = selection->time[clicked_selection].end;
2373
2374         nframes_t selection_cnt = end - start + 1;
2375
2376         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2377                 boost::shared_ptr<AudioRegion> current;
2378                 boost::shared_ptr<Region> current_r;
2379                 boost::shared_ptr<Playlist> pl;
2380
2381                 nframes_t internal_start;
2382                 string new_name;
2383
2384                 if ((pl = (*i)->playlist()) == 0) {
2385                         continue;
2386                 }
2387
2388                 if ((current_r = pl->top_region_at (start)) == 0) {
2389                         continue;
2390                 }
2391
2392                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2393                 // FIXME: audio only
2394                 if (current != 0) {
2395                         internal_start = start - current->position();
2396                         session->region_name (new_name, current->name(), true);
2397                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2398                 }
2399         }
2400 }
2401
2402 void
2403 Editor::create_region_from_selection (vector<boost::shared_ptr<AudioRegion> >& new_regions)
2404 {
2405         if (selection->time.empty() || selection->tracks.empty()) {
2406                 return;
2407         }
2408
2409         nframes_t start = selection->time[clicked_selection].start;
2410         nframes_t end = selection->time[clicked_selection].end;
2411
2412         sort_track_selection ();
2413
2414         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2415
2416                 boost::shared_ptr<AudioRegion> current;
2417                 boost::shared_ptr<Region> current_r;
2418                 boost::shared_ptr<Playlist> playlist;
2419                 nframes_t internal_start;
2420                 string new_name;
2421
2422                 if ((playlist = (*i)->playlist()) == 0) {
2423                         continue;
2424                 }
2425
2426                 if ((current_r = playlist->top_region_at(start)) == 0) {
2427                         continue;
2428                 }
2429
2430                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2431                         continue;
2432                 }
2433
2434                 internal_start = start - current->position();
2435                 session->region_name (new_name, current->name(), true);
2436
2437                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2438         }
2439 }
2440
2441 void
2442 Editor::split_multichannel_region ()
2443 {
2444         if (selection->regions.empty()) {
2445                 return;
2446         }
2447
2448         vector<boost::shared_ptr<AudioRegion> > v;
2449
2450         for (list<RegionView*>::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
2451
2452                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2453
2454                 if (!arv || arv->audio_region()->n_channels() < 2) {
2455                         continue;
2456                 }
2457
2458                 (arv)->audio_region()->separate_by_channel (*session, v);
2459         }
2460 }
2461
2462 void
2463 Editor::new_region_from_selection ()
2464 {
2465         region_from_selection ();
2466         cancel_selection ();
2467 }
2468
2469 static void
2470 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2471 {
2472         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2473         case OverlapNone:
2474                 break;
2475         default:
2476                 rs->push_back (rv);
2477         }
2478 }
2479
2480 void
2481 Editor::separate_regions_between (const TimeSelection& ts)
2482 {
2483         bool in_command = false;
2484         boost::shared_ptr<Playlist> playlist;
2485         RegionSelection new_selection;
2486
2487         sort_track_selection ();
2488
2489         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2490
2491                 AudioTimeAxisView* atv;
2492
2493                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2494
2495                         if (atv->is_audio_track()) {
2496
2497                                 /* no edits to destructive tracks */
2498
2499                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2500                                         continue;
2501                                 }
2502
2503                                 if ((playlist = atv->playlist()) != 0) {
2504
2505
2506                                         XMLNode *before;
2507                                         bool got_some;
2508
2509                                         before = &(playlist->get_state());
2510                                         got_some = false;
2511
2512                                         /* XXX need to consider musical time selections here at some point */
2513
2514                                         double speed = atv->get_diskstream()->speed();
2515
2516
2517                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2518
2519                                                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2520                                                 latest_regionviews.clear ();
2521
2522                                                 playlist->partition ((nframes_t)((*t).start * speed), (nframes_t)((*t).end * speed), true);
2523
2524                                                 c.disconnect ();
2525
2526                                                 if (!latest_regionviews.empty()) {
2527
2528                                                         got_some = true;
2529
2530                                                         atv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2531
2532                                                         if (!in_command) {
2533                                                                 begin_reversible_command (_("separate"));
2534                                                                 in_command = true;
2535                                                         }
2536
2537                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2538
2539                                                 }
2540                                         }
2541
2542                                         if (!got_some) {
2543                                                 delete before;
2544                                         }
2545                                 }
2546                         }
2547                 }
2548         }
2549
2550         if (in_command) {
2551                 selection->set (new_selection);
2552                 set_mouse_mode (MouseObject);
2553
2554                 commit_reversible_command ();
2555         }
2556 }
2557
2558 void
2559 Editor::separate_region_from_selection ()
2560 {
2561         /* preferentially use *all* ranges in the time selection if we're in range mode
2562            to allow discontiguous operation, since get_edit_op_range() currently
2563            returns a single range.
2564         */
2565         if (mouse_mode == MouseRange && !selection->time.empty()) {
2566
2567                 separate_regions_between (selection->time);
2568
2569         } else {
2570
2571                 nframes64_t start;
2572                 nframes64_t end;
2573
2574                 if (get_edit_op_range (start, end)) {
2575
2576                         AudioRange ar (start, end, 1);
2577                         TimeSelection ts;
2578                         ts.push_back (ar);
2579
2580                         /* force track selection */
2581
2582                         ensure_entered_region_selected ();
2583
2584                         separate_regions_between (ts);
2585                 }
2586         }
2587 }
2588
2589 void
2590 Editor::separate_regions_using_location (Location& loc)
2591 {
2592         if (loc.is_mark()) {
2593                 return;
2594         }
2595
2596         AudioRange ar (loc.start(), loc.end(), 1);
2597         TimeSelection ts;
2598
2599         ts.push_back (ar);
2600
2601         separate_regions_between (ts);
2602 }
2603
2604 void
2605 Editor::crop_region_to_selection ()
2606 {
2607         ensure_entered_region_selected (true);
2608
2609         if (!selection->time.empty()) {
2610
2611                 crop_region_to (selection->time.start(), selection->time.end_frame());
2612
2613         } else {
2614
2615                 nframes64_t start;
2616                 nframes64_t end;
2617
2618                 if (get_edit_op_range (start, end)) {
2619                         crop_region_to (start, end);
2620                 }
2621         }
2622
2623 }
2624
2625 void
2626 Editor::crop_region_to (nframes_t start, nframes_t end)
2627 {
2628         vector<boost::shared_ptr<Playlist> > playlists;
2629         boost::shared_ptr<Playlist> playlist;
2630         TrackSelection* ts;
2631
2632         if (selection->tracks.empty()) {
2633                 ts = &track_views;
2634         } else {
2635                 sort_track_selection ();
2636                 ts = &selection->tracks;
2637         }
2638
2639         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2640
2641                 AudioTimeAxisView* atv;
2642
2643                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2644
2645                         if (atv->is_audio_track()) {
2646
2647                                 /* no edits to destructive tracks */
2648
2649                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2650                                         continue;
2651                                 }
2652
2653                                 if ((playlist = atv->playlist()) != 0) {
2654                                         playlists.push_back (playlist);
2655                                 }
2656                         }
2657                 }
2658         }
2659
2660         if (playlists.empty()) {
2661                 return;
2662         }
2663
2664         nframes_t the_start;
2665         nframes_t the_end;
2666         nframes_t cnt;
2667
2668         begin_reversible_command (_("trim to selection"));
2669
2670         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2671
2672                 boost::shared_ptr<Region> region;
2673
2674                 the_start = start;
2675
2676                 if ((region = (*i)->top_region_at(the_start)) == 0) {
2677                         continue;
2678                 }
2679
2680                 /* now adjust lengths to that we do the right thing
2681                    if the selection extends beyond the region
2682                 */
2683
2684                 the_start = max (the_start, region->position());
2685                 if (max_frames - the_start < region->length()) {
2686                         the_end = the_start + region->length() - 1;
2687                 } else {
2688                         the_end = max_frames;
2689                 }
2690                 the_end = min (end, the_end);
2691                 cnt = the_end - the_start + 1;
2692
2693                 XMLNode &before = (*i)->get_state();
2694                 region->trim_to (the_start, cnt, this);
2695                 XMLNode &after = (*i)->get_state();
2696                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
2697         }
2698
2699         commit_reversible_command ();
2700 }
2701
2702 void
2703 Editor::region_fill_track ()
2704 {
2705         nframes_t end;
2706
2707         if (!session || selection->regions.empty()) {
2708                 return;
2709         }
2710
2711         end = session->current_end_frame ();
2712
2713         begin_reversible_command (_("region fill"));
2714
2715         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2716
2717                 boost::shared_ptr<Region> region ((*i)->region());
2718
2719                 // FIXME
2720                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
2721                 if (!ar)
2722                         continue;
2723
2724                 boost::shared_ptr<Playlist> pl = region->playlist();
2725
2726                 if (end <= region->last_frame()) {
2727                         return;
2728                 }
2729
2730                 double times = (double) (end - region->last_frame()) / (double) region->length();
2731
2732                 if (times == 0) {
2733                         return;
2734                 }
2735
2736                 XMLNode &before = pl->get_state();
2737                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
2738                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
2739         }
2740
2741         commit_reversible_command ();
2742 }
2743
2744 void
2745 Editor::region_fill_selection ()
2746 {
2747         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
2748                 return;
2749         }
2750
2751         if (selection->time.empty()) {
2752                 return;
2753         }
2754
2755
2756         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2757
2758         if (selected->count_selected_rows() != 1) {
2759                 return;
2760         }
2761
2762         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
2763         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
2764
2765         nframes_t start = selection->time[clicked_selection].start;
2766         nframes_t end = selection->time[clicked_selection].end;
2767
2768         boost::shared_ptr<Playlist> playlist;
2769
2770         if (selection->tracks.empty()) {
2771                 return;
2772         }
2773
2774         nframes_t selection_length = end - start;
2775         float times = (float)selection_length / region->length();
2776
2777         begin_reversible_command (_("fill selection"));
2778
2779         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2780
2781                 if ((playlist = (*i)->playlist()) == 0) {
2782                         continue;
2783                 }
2784
2785                 XMLNode &before = playlist->get_state();
2786                 playlist->add_region (RegionFactory::create (region), start, times);
2787                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2788         }
2789
2790         commit_reversible_command ();
2791 }
2792
2793 void
2794 Editor::set_region_sync_from_edit_point ()
2795 {
2796         nframes64_t where = get_preferred_edit_position ();
2797         ensure_entered_region_selected (true);
2798         set_sync_point (where, selection->regions);
2799 }
2800
2801 void
2802 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
2803 {
2804         bool in_command = false;
2805
2806         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
2807
2808                 if (!(*r)->region()->covers (where)) {
2809                         continue;
2810                 }
2811
2812                 boost::shared_ptr<Region> region ((*r)->region());
2813
2814                 if (!in_command) {
2815                         begin_reversible_command (_("set sync point"));
2816                         in_command = true;
2817                 }
2818
2819                 XMLNode &before = region->playlist()->get_state();
2820                 region->set_sync_position (get_preferred_edit_position());
2821                 XMLNode &after = region->playlist()->get_state();
2822                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
2823         }
2824
2825         if (in_command) {
2826                 commit_reversible_command ();
2827         }
2828 }
2829
2830 void
2831 Editor::remove_region_sync ()
2832 {
2833         if (clicked_regionview) {
2834                 boost::shared_ptr<Region> region (clicked_regionview->region());
2835                 begin_reversible_command (_("remove sync"));
2836                 XMLNode &before = region->playlist()->get_state();
2837                 region->clear_sync_position ();
2838                 XMLNode &after = region->playlist()->get_state();
2839                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
2840                 commit_reversible_command ();
2841         }
2842 }
2843
2844 void
2845 Editor::naturalize ()
2846 {
2847         if (selection->regions.empty()) {
2848                 return;
2849         }
2850         begin_reversible_command (_("naturalize"));
2851         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
2852                 XMLNode &before = (*i)->region()->get_state();
2853                 (*i)->region()->move_to_natural_position (this);
2854                 XMLNode &after = (*i)->region()->get_state();
2855                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
2856         }
2857         commit_reversible_command ();
2858 }
2859
2860 void
2861 Editor::align (RegionPoint what)
2862 {
2863         ensure_entered_region_selected ();
2864
2865         nframes64_t where = get_preferred_edit_position();
2866
2867         if (!selection->regions.empty()) {
2868                 align_selection (what, where, selection->regions);
2869         } else {
2870
2871                 RegionSelection rs;
2872                 rs = get_regions_at (where, selection->tracks);
2873                 align_selection (what, where, rs);
2874         }
2875 }
2876
2877 void
2878 Editor::align_relative (RegionPoint what)
2879 {
2880         nframes64_t where = get_preferred_edit_position();
2881
2882         if (!selection->regions.empty()) {
2883                 align_selection_relative (what, where, selection->regions);
2884         } else {
2885
2886                 RegionSelection rs;
2887                 rs = get_regions_at (where, selection->tracks);
2888                 align_selection_relative (what, where, rs);
2889         }
2890 }
2891
2892 struct RegionSortByTime {
2893     bool operator() (const AudioRegionView* a, const AudioRegionView* b) {
2894             return a->region()->position() < b->region()->position();
2895     }
2896 };
2897
2898 void
2899 Editor::align_selection_relative (RegionPoint point, nframes_t position, const RegionSelection& rs)
2900 {
2901         if (rs.empty()) {
2902                 return;
2903         }
2904
2905         nframes_t distance;
2906         nframes_t pos = 0;
2907         int dir;
2908
2909         list<RegionView*> sorted;
2910         rs.by_position (sorted);
2911         boost::shared_ptr<Region> r ((*sorted.begin())->region());
2912
2913         switch (point) {
2914         case Start:
2915                 pos = r->first_frame ();
2916                 break;
2917
2918         case End:
2919                 pos = r->last_frame();
2920                 break;
2921
2922         case SyncPoint:
2923                 pos = r->adjust_to_sync (r->first_frame());
2924                 break;
2925         }
2926
2927         if (pos > position) {
2928                 distance = pos - position;
2929                 dir = -1;
2930         } else {
2931                 distance = position - pos;
2932                 dir = 1;
2933         }
2934
2935         begin_reversible_command (_("align selection (relative)"));
2936
2937         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
2938
2939                 boost::shared_ptr<Region> region ((*i)->region());
2940
2941                 XMLNode &before = region->playlist()->get_state();
2942
2943                 if (dir > 0) {
2944                         region->set_position (region->position() + distance, this);
2945                 } else {
2946                         region->set_position (region->position() - distance, this);
2947                 }
2948
2949                 XMLNode &after = region->playlist()->get_state();
2950                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
2951
2952         }
2953
2954         commit_reversible_command ();
2955 }
2956
2957 void
2958 Editor::align_selection (RegionPoint point, nframes_t position, const RegionSelection& rs)
2959 {
2960         if (rs.empty()) {
2961                 return;
2962         }
2963
2964         begin_reversible_command (_("align selection"));
2965
2966         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
2967                 align_region_internal ((*i)->region(), point, position);
2968         }
2969
2970         commit_reversible_command ();
2971 }
2972
2973 void
2974 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes_t position)
2975 {
2976         begin_reversible_command (_("align region"));
2977         align_region_internal (region, point, position);
2978         commit_reversible_command ();
2979 }
2980
2981 void
2982 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes_t position)
2983 {
2984         XMLNode &before = region->playlist()->get_state();
2985
2986         switch (point) {
2987         case SyncPoint:
2988                 region->set_position (region->adjust_to_sync (position), this);
2989                 break;
2990
2991         case End:
2992                 if (position > region->length()) {
2993                         region->set_position (position - region->length(), this);
2994                 }
2995                 break;
2996
2997         case Start:
2998                 region->set_position (position, this);
2999                 break;
3000         }
3001
3002         XMLNode &after = region->playlist()->get_state();
3003         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3004 }
3005
3006 void
3007 Editor::trim_region_to_loop ()
3008 {
3009         Location* loc = session->locations()->auto_loop_location();
3010         if (!loc) {
3011                 return;
3012         }
3013         trim_region_to_location (*loc, _("trim to loop"));
3014 }
3015
3016 void
3017 Editor::trim_region_to_punch ()
3018 {
3019         Location* loc = session->locations()->auto_punch_location();
3020         if (!loc) {
3021                 return;
3022         }
3023         trim_region_to_location (*loc, _("trim to punch"));
3024 }
3025
3026 void
3027 Editor::trim_region_to_location (const Location& loc, const char* str)
3028 {
3029         ensure_entered_region_selected ();
3030
3031         RegionSelection& rs (get_regions_for_action ());
3032
3033         begin_reversible_command (str);
3034
3035         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3036                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3037
3038                 if (!arv) {
3039                         continue;
3040                 }
3041
3042                 /* require region to span proposed trim */
3043
3044                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3045                 case OverlapInternal:
3046                         break;
3047                 default:
3048                         continue;
3049                 }
3050
3051                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3052
3053                 if (!atav) {
3054                         return;
3055                 }
3056
3057                 float speed = 1.0;
3058                 nframes_t start;
3059                 nframes_t end;
3060
3061                 if (atav->get_diskstream() != 0) {
3062                         speed = atav->get_diskstream()->speed();
3063                 }
3064
3065                 start = session_frame_to_track_frame (loc.start(), speed);
3066                 end = session_frame_to_track_frame (loc.end(), speed);
3067
3068                 XMLNode &before = arv->region()->playlist()->get_state();
3069                 arv->region()->trim_to (start, (end - start), this);
3070                 XMLNode &after = arv->region()->playlist()->get_state();
3071                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3072         }
3073
3074         commit_reversible_command ();
3075 }
3076
3077 void
3078 Editor::trim_region_to_edit_point ()
3079 {
3080         RegionSelection& rs (get_regions_for_action ());
3081         nframes64_t where = get_preferred_edit_position();
3082
3083         begin_reversible_command (_("trim region start to edit point"));
3084
3085         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3086                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3087
3088                 if (!arv) {
3089                         continue;
3090                 }
3091
3092                 /* require region to cover trim */
3093
3094                 if (!arv->region()->covers (where)) {
3095                         continue;
3096                 }
3097
3098                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3099
3100                 if (!atav) {
3101                         return;
3102                 }
3103
3104                 float speed = 1.0;
3105
3106                 if (atav->get_diskstream() != 0) {
3107                         speed = atav->get_diskstream()->speed();
3108                 }
3109
3110                 XMLNode &before = arv->region()->playlist()->get_state();
3111                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3112                 XMLNode &after = arv->region()->playlist()->get_state();
3113                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3114         }
3115
3116         commit_reversible_command ();
3117 }
3118
3119 void
3120 Editor::trim_region_from_edit_point ()
3121 {
3122         RegionSelection& rs (get_regions_for_action ());
3123         nframes64_t where = get_preferred_edit_position();
3124
3125         begin_reversible_command (_("trim region end to edit point"));
3126
3127         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3128                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3129
3130                 if (!arv) {
3131                         continue;
3132                 }
3133
3134                 /* require region to cover trim */
3135
3136                 if (!arv->region()->covers (where)) {
3137                         continue;
3138                 }
3139
3140                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3141
3142                 if (!atav) {
3143                         return;
3144                 }
3145
3146                 float speed = 1.0;
3147
3148                 if (atav->get_diskstream() != 0) {
3149                         speed = atav->get_diskstream()->speed();
3150                 }
3151
3152                 XMLNode &before = arv->region()->playlist()->get_state();
3153                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3154                 XMLNode &after = arv->region()->playlist()->get_state();
3155                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3156         }
3157
3158         commit_reversible_command ();
3159 }
3160
3161 void
3162 Editor::unfreeze_route ()
3163 {
3164         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3165                 return;
3166         }
3167
3168         clicked_audio_trackview->audio_track()->unfreeze ();
3169 }
3170
3171 void*
3172 Editor::_freeze_thread (void* arg)
3173 {
3174         PBD::ThreadCreated (pthread_self(), X_("Freeze"));
3175         return static_cast<Editor*>(arg)->freeze_thread ();
3176 }
3177
3178 void*
3179 Editor::freeze_thread ()
3180 {
3181         clicked_audio_trackview->audio_track()->freeze (*current_interthread_info);
3182         return 0;
3183 }
3184
3185 gint
3186 Editor::freeze_progress_timeout (void *arg)
3187 {
3188         interthread_progress_bar.set_fraction (current_interthread_info->progress/100);
3189         return !(current_interthread_info->done || current_interthread_info->cancel);
3190 }
3191
3192 void
3193 Editor::freeze_route ()
3194 {
3195         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3196                 return;
3197         }
3198
3199         InterThreadInfo itt;
3200
3201         if (interthread_progress_window == 0) {
3202                 build_interthread_progress_window ();
3203         }
3204
3205         WindowTitle title(Glib::get_application_name());
3206         title += _("Freeze");
3207         interthread_progress_window->set_title (title.get_string());
3208         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3209         interthread_progress_window->show_all ();
3210         interthread_progress_bar.set_fraction (0.0f);
3211         interthread_progress_label.set_text ("");
3212         interthread_cancel_label.set_text (_("Cancel Freeze"));
3213         current_interthread_info = &itt;
3214
3215         interthread_progress_connection =
3216           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3217
3218         itt.done = false;
3219         itt.cancel = false;
3220         itt.progress = 0.0f;
3221
3222         pthread_attr_t attr;
3223         pthread_attr_init(&attr);
3224         pthread_attr_setstacksize(&attr, 500000);
3225
3226         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3227
3228         pthread_attr_destroy(&attr);
3229
3230         track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3231
3232         while (!itt.done && !itt.cancel) {
3233                 gtk_main_iteration ();
3234         }
3235
3236         interthread_progress_connection.disconnect ();
3237         interthread_progress_window->hide_all ();
3238         current_interthread_info = 0;
3239         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
3240 }
3241
3242 void
3243 Editor::bounce_range_selection ()
3244 {
3245         if (selection->time.empty()) {
3246                 return;
3247         }
3248
3249         TrackSelection views = selection->tracks;
3250
3251         nframes_t start = selection->time[clicked_selection].start;
3252         nframes_t end = selection->time[clicked_selection].end;
3253         nframes_t cnt = end - start + 1;
3254
3255         begin_reversible_command (_("bounce range"));
3256
3257         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3258
3259                 AudioTimeAxisView* atv;
3260
3261                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) == 0) {
3262                         continue;
3263                 }
3264
3265                 boost::shared_ptr<Playlist> playlist;
3266
3267                 if ((playlist = atv->playlist()) == 0) {
3268                         return;
3269                 }
3270
3271                 InterThreadInfo itt;
3272
3273                 itt.done = false;
3274                 itt.cancel = false;
3275                 itt.progress = false;
3276
3277                 XMLNode &before = playlist->get_state();
3278                 atv->audio_track()->bounce_range (start, cnt, itt);
3279                 XMLNode &after = playlist->get_state();
3280                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3281         }
3282
3283         commit_reversible_command ();
3284 }
3285
3286 void
3287 Editor::cut ()
3288 {
3289         cut_copy (Cut);
3290 }
3291
3292 void
3293 Editor::copy ()
3294 {
3295         cut_copy (Copy);
3296 }
3297
3298 void
3299 Editor::cut_copy (CutCopyOp op)
3300 {
3301         /* only cancel selection if cut/copy is successful.*/
3302
3303         string opname;
3304
3305         switch (op) {
3306         case Cut:
3307                 opname = _("cut");
3308                 break;
3309         case Copy:
3310                 opname = _("copy");
3311                 break;
3312         case Clear:
3313                 opname = _("clear");
3314                 break;
3315         }
3316
3317         cut_buffer->clear ();
3318
3319         if (entered_marker) {
3320
3321                 /* cut/delete op while pointing at a marker */
3322
3323                 bool ignored;
3324                 Location* loc = find_location_from_marker (entered_marker, ignored);
3325
3326                 if (session && loc) {
3327                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3328                 }
3329
3330                 return;
3331         }
3332
3333         switch (current_mouse_mode()) {
3334         case MouseObject:
3335                 cerr << "cutting in object mode\n";
3336                 if (!selection->regions.empty() || !selection->points.empty()) {
3337
3338                         begin_reversible_command (opname + _(" objects"));
3339
3340                         if (!selection->regions.empty()) {
3341                                 cerr << "have regions to cut" << endl;
3342                                 cut_copy_regions (op);
3343
3344                                 if (op == Cut) {
3345                                         selection->clear_regions ();
3346                                 }
3347                         }
3348
3349                         if (!selection->points.empty()) {
3350                                 cut_copy_points (op);
3351
3352                                 if (op == Cut) {
3353                                         selection->clear_points ();
3354                                 }
3355                         }
3356
3357                         commit_reversible_command ();
3358                         break; // terminate case statement here
3359                 }
3360                 cerr << "nope, now cutting time range" << endl;
3361                 if (!selection->time.empty()) {
3362                         /* don't cause suprises */
3363                         break;
3364                 }
3365                 // fall thru if there was nothing selected
3366
3367         case MouseRange:
3368                 if (selection->time.empty()) {
3369                         nframes64_t start, end;
3370                         cerr << "no time selection, get edit op range" << endl;
3371                         if (!get_edit_op_range (start, end)) {
3372                                 cerr << "no edit op range" << endl;
3373                                 return;
3374                         }
3375                         selection->set ((TimeAxisView*) 0, start, end);
3376                 }
3377
3378                 begin_reversible_command (opname + _(" range"));
3379                 cut_copy_ranges (op);
3380                 commit_reversible_command ();
3381
3382                 if (op == Cut) {
3383                         selection->clear_time ();
3384                 }
3385
3386                 break;
3387
3388         default:
3389                 break;
3390         }
3391 }
3392
3393 void
3394 Editor::cut_copy_points (CutCopyOp op)
3395 {
3396         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3397
3398                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3399
3400                 if (atv) {
3401                         atv->cut_copy_clear_objects (selection->points, op);
3402                 }
3403         }
3404 }
3405
3406 struct PlaylistState {
3407     boost::shared_ptr<Playlist> playlist;
3408     XMLNode*  before;
3409 };
3410
3411 struct lt_playlist {
3412     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3413             return a.playlist < b.playlist;
3414     }
3415 };
3416
3417 struct PlaylistMapping {
3418     TimeAxisView* tv;
3419     boost::shared_ptr<AudioPlaylist> pl;
3420
3421     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3422 };
3423
3424 void
3425 Editor::cut_copy_regions (CutCopyOp op)
3426 {
3427         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3428            a map when we want ordered access to both elements. i think.
3429         */
3430
3431         vector<PlaylistMapping> pmap;
3432
3433         nframes_t first_position = max_frames;
3434
3435         set<PlaylistState, lt_playlist> freezelist;
3436         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3437
3438         /* get ordering correct before we cut/copy */
3439
3440         selection->regions.sort_by_position_and_track ();
3441
3442         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
3443
3444                 first_position = min ((*x)->region()->position(), first_position);
3445
3446                 if (op == Cut || op == Clear) {
3447                         boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3448
3449                         if (pl) {
3450
3451                                 PlaylistState before;
3452                                 before.playlist = pl;
3453                                 before.before = &pl->get_state();
3454
3455                                 insert_result = freezelist.insert (before);
3456
3457                                 if (insert_result.second) {
3458                                         pl->freeze ();
3459                                 }
3460                         }
3461                 }
3462
3463                 TimeAxisView* tv = &(*x)->get_trackview();
3464                 vector<PlaylistMapping>::iterator z;
3465
3466                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3467                         if ((*z).tv == tv) {
3468                                 break;
3469                         }
3470                 }
3471
3472                 if (z == pmap.end()) {
3473                         pmap.push_back (PlaylistMapping (tv));
3474                 }
3475         }
3476
3477         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ) {
3478
3479                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3480
3481                 if (!pl) {
3482                         /* impossible, but this handles it for the future */
3483                         continue;
3484                 }
3485
3486                 TimeAxisView& tv = (*x)->get_trackview();
3487                 boost::shared_ptr<AudioPlaylist> npl;
3488                 RegionSelection::iterator tmp;
3489
3490                 tmp = x;
3491                 ++tmp;
3492
3493                 vector<PlaylistMapping>::iterator z;
3494
3495                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3496                         if ((*z).tv == &tv) {
3497                                 break;
3498                         }
3499                 }
3500
3501                 assert (z != pmap.end());
3502
3503                 if (!(*z).pl) {
3504                         npl = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (*session, "cutlist", true));
3505                         npl->freeze();
3506                         (*z).pl = npl;
3507                 } else {
3508                         npl = (*z).pl;
3509                 }
3510
3511                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>((*x)->region());
3512                 boost::shared_ptr<Region> _xx;
3513
3514                 switch (op) {
3515                 case Cut:
3516                         if (!ar) break;
3517
3518                         _xx = RegionFactory::create ((*x)->region());
3519                         npl->add_region (_xx, (*x)->region()->position() - first_position);
3520                         pl->remove_region (((*x)->region()));
3521                         break;
3522
3523                 case Copy:
3524                         if (!ar) break;
3525
3526                         /* copy region before adding, so we're not putting same object into two different playlists */
3527                         npl->add_region (RegionFactory::create ((*x)->region()), (*x)->region()->position() - first_position);
3528                         break;
3529
3530                 case Clear:
3531                         pl->remove_region (((*x)->region()));
3532                         break;
3533                 }
3534
3535                 x = tmp;
3536         }
3537
3538         list<boost::shared_ptr<Playlist> > foo;
3539
3540         /* the pmap is in the same order as the tracks in which selected regions occured */
3541
3542         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3543                 (*i).pl->thaw();
3544                 foo.push_back ((*i).pl);
3545         }
3546
3547
3548         if (!foo.empty()) {
3549                 cut_buffer->set (foo);
3550         }
3551
3552         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3553                 (*pl).playlist->thaw ();
3554                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
3555         }
3556 }
3557
3558 void
3559 Editor::cut_copy_ranges (CutCopyOp op)
3560 {
3561         TrackSelection* ts;
3562
3563         if (selection->tracks.empty()) {
3564                 ts = &track_views;
3565         } else {
3566                 ts = &selection->tracks;
3567         }
3568
3569         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3570                 (*i)->cut_copy_clear (*selection, op);
3571         }
3572 }
3573
3574 void
3575 Editor::paste (float times)
3576 {
3577         paste_internal (get_preferred_edit_position(), times);
3578 }
3579
3580 void
3581 Editor::mouse_paste ()
3582 {
3583         nframes64_t where;
3584         bool ignored;
3585
3586         if (!mouse_frame (where, ignored)) {
3587                 return;
3588         }
3589
3590         snap_to (where);
3591         paste_internal (where, 1);
3592 }
3593
3594 void
3595 Editor::paste_internal (nframes_t position, float times)
3596 {
3597         bool commit = false;
3598
3599         if (cut_buffer->empty()) {
3600                 return;
3601         }
3602
3603         if (position == max_frames) {
3604                 position = get_preferred_edit_position();
3605         }
3606
3607         begin_reversible_command (_("paste"));
3608
3609         TrackSelection ts;
3610         TrackSelection::iterator i;
3611         size_t nth;
3612
3613         /* get everything in the correct order */
3614
3615
3616         if (!selection->tracks.empty()) {
3617                 sort_track_selection ();
3618                 ts = selection->tracks;
3619         } else if (entered_track) {
3620                 ts.push_back (entered_track);
3621         }
3622
3623         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
3624
3625                 /* undo/redo is handled by individual tracks */
3626
3627                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
3628                         commit = true;
3629                 }
3630         }
3631
3632         if (commit) {
3633                 commit_reversible_command ();
3634         }
3635 }
3636
3637 void
3638 Editor::paste_named_selection (float times)
3639 {
3640         TrackSelection::iterator t;
3641
3642         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
3643
3644         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
3645                 return;
3646         }
3647
3648         TreeModel::iterator i = selected->get_selected();
3649         NamedSelection* ns = (*i)[named_selection_columns.selection];
3650
3651         list<boost::shared_ptr<Playlist> >::iterator chunk;
3652         list<boost::shared_ptr<Playlist> >::iterator tmp;
3653
3654         chunk = ns->playlists.begin();
3655
3656         begin_reversible_command (_("paste chunk"));
3657
3658         sort_track_selection ();
3659
3660         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
3661
3662                 AudioTimeAxisView* atv;
3663                 boost::shared_ptr<Playlist> pl;
3664                 boost::shared_ptr<AudioPlaylist> apl;
3665
3666                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*t)) == 0) {
3667                         continue;
3668                 }
3669
3670                 if ((pl = atv->playlist()) == 0) {
3671                         continue;
3672                 }
3673
3674                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
3675                         continue;
3676                 }
3677
3678                 tmp = chunk;
3679                 ++tmp;
3680
3681                 XMLNode &before = apl->get_state();
3682                 apl->paste (*chunk, get_preferred_edit_position(), times);
3683                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
3684
3685                 if (tmp != ns->playlists.end()) {
3686                         chunk = tmp;
3687                 }
3688         }
3689
3690         commit_reversible_command();
3691 }
3692
3693 void
3694 Editor::duplicate_some_regions (RegionSelection& regions, float times)
3695 {
3696         boost::shared_ptr<Playlist> playlist;
3697         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
3698         RegionSelection foo;
3699
3700         begin_reversible_command (_("duplicate region"));
3701
3702         selection->clear_regions ();
3703
3704         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
3705
3706                 boost::shared_ptr<Region> r ((*i)->region());
3707
3708                 TimeAxisView& tv = (*i)->get_time_axis_view();
3709                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (&tv);
3710
3711                 latest_regionviews.clear ();
3712                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
3713
3714                 playlist = (*i)->region()->playlist();
3715                 XMLNode &before = playlist->get_state();
3716                 playlist->duplicate (r, r->last_frame() + 1, times);
3717                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3718
3719                 c.disconnect ();
3720
3721                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
3722         }
3723
3724         commit_reversible_command ();
3725
3726         if (!foo.empty()) {
3727                 selection->set (foo);
3728         }
3729 }
3730
3731 void
3732 Editor::duplicate_selection (float times)
3733 {
3734         if (selection->time.empty() || selection->tracks.empty()) {
3735                 return;
3736         }
3737
3738         boost::shared_ptr<Playlist> playlist;
3739         vector<boost::shared_ptr<AudioRegion> > new_regions;
3740         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
3741
3742         create_region_from_selection (new_regions);
3743
3744         if (new_regions.empty()) {
3745                 return;
3746         }
3747
3748         begin_reversible_command (_("duplicate selection"));
3749
3750         ri = new_regions.begin();
3751
3752         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3753                 if ((playlist = (*i)->playlist()) == 0) {
3754                         continue;
3755                 }
3756                 XMLNode &before = playlist->get_state();
3757                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
3758                 XMLNode &after = playlist->get_state();
3759                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
3760
3761                 ++ri;
3762                 if (ri == new_regions.end()) {
3763                         --ri;
3764                 }
3765         }
3766
3767         commit_reversible_command ();
3768 }
3769
3770 void
3771 Editor::reset_point_selection ()
3772 {
3773         /* reset all selected points to the relevant default value */
3774
3775         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3776
3777                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3778
3779                 if (atv) {
3780                         atv->reset_objects (selection->points);
3781                 }
3782         }
3783 }
3784
3785 void
3786 Editor::center_playhead ()
3787 {
3788         float page = canvas_width * frames_per_unit;
3789         center_screen_internal (playhead_cursor->current_frame, page);
3790 }
3791
3792 void
3793 Editor::center_edit_point ()
3794 {
3795         float page = canvas_width * frames_per_unit;
3796         center_screen_internal (get_preferred_edit_position(), page);
3797 }
3798
3799 void
3800 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
3801 {
3802         begin_reversible_command (_("clear playlist"));
3803         XMLNode &before = playlist->get_state();
3804         playlist->clear ();
3805         XMLNode &after = playlist->get_state();
3806         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
3807         commit_reversible_command ();
3808 }
3809
3810 void
3811 Editor::nudge_track (bool use_edit, bool forwards)
3812 {
3813         boost::shared_ptr<Playlist> playlist;
3814         nframes_t distance;
3815         nframes_t next_distance;
3816         nframes_t start;
3817
3818         if (use_edit) {
3819                 start = get_preferred_edit_position();
3820         } else {
3821                 start = 0;
3822         }
3823
3824         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
3825                 return;
3826         }
3827
3828         if (selection->tracks.empty()) {
3829                 return;
3830         }
3831
3832         begin_reversible_command (_("nudge track"));
3833
3834         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3835
3836                 if ((playlist = (*i)->playlist()) == 0) {
3837                         continue;
3838                 }
3839
3840                 XMLNode &before = playlist->get_state();
3841                 playlist->nudge_after (start, distance, forwards);
3842                 XMLNode &after = playlist->get_state();
3843                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
3844         }
3845
3846         commit_reversible_command ();
3847 }
3848
3849 void
3850 Editor::remove_last_capture ()
3851 {
3852         vector<string> choices;
3853         string prompt;
3854
3855         if (!session) {
3856                 return;
3857         }
3858
3859         if (Config->get_verify_remove_last_capture()) {
3860                 prompt  = _("Do you really want to destroy the last capture?"
3861                             "\n(This is destructive and cannot be undone)");
3862
3863                 choices.push_back (_("No, do nothing."));
3864                 choices.push_back (_("Yes, destroy it."));
3865
3866                 Gtkmm2ext::Choice prompter (prompt, choices);
3867
3868                 if (prompter.run () == 1) {
3869                         session->remove_last_capture ();
3870                 }
3871
3872         } else {
3873                 session->remove_last_capture();
3874         }
3875 }
3876
3877 void
3878 Editor::normalize_region ()
3879 {
3880         if (!session) {
3881                 return;
3882         }
3883
3884         if (selection->regions.empty()) {
3885                 return;
3886         }
3887
3888         begin_reversible_command (_("normalize"));
3889
3890         track_canvas.get_window()->set_cursor (*wait_cursor);
3891         gdk_flush ();
3892
3893         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
3894                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
3895                 if (!arv)
3896                         continue;
3897                 XMLNode &before = arv->region()->get_state();
3898                 arv->audio_region()->normalize_to (0.0f);
3899                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
3900         }
3901
3902         commit_reversible_command ();
3903         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
3904 }
3905
3906
3907 void
3908 Editor::denormalize_region ()
3909 {
3910         if (!session) {
3911                 return;
3912         }
3913
3914         if (selection->regions.empty()) {
3915                 return;
3916         }
3917
3918         begin_reversible_command ("denormalize");
3919
3920         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ++r) {
3921                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
3922                 if (!arv)
3923                         continue;
3924                 XMLNode &before = arv->region()->get_state();
3925                 arv->audio_region()->set_scale_amplitude (1.0f);
3926                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
3927         }
3928
3929         commit_reversible_command ();
3930 }
3931
3932
3933 void
3934 Editor::reverse_region ()
3935 {
3936         if (!session) {
3937                 return;
3938         }
3939
3940         Reverse rev (*session);
3941         apply_filter (rev, _("reverse regions"));
3942 }
3943
3944 void
3945 Editor::apply_filter (AudioFilter& filter, string command)
3946 {
3947         if (selection->regions.empty()) {
3948                 return;
3949         }
3950
3951         begin_reversible_command (command);
3952
3953         track_canvas.get_window()->set_cursor (*wait_cursor);
3954         gdk_flush ();
3955
3956         for (RegionSelection::iterator r = selection->regions.begin(); r != selection->regions.end(); ) {
3957                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
3958                 if (!arv)
3959                         continue;
3960
3961                 boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
3962
3963                 RegionSelection::iterator tmp;
3964
3965                 tmp = r;
3966                 ++tmp;
3967
3968                 if (arv->audio_region()->apply (filter) == 0) {
3969
3970                         XMLNode &before = playlist->get_state();
3971                         playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
3972                         XMLNode &after = playlist->get_state();
3973                         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
3974                 } else {
3975                         goto out;
3976                 }
3977
3978                 r = tmp;
3979         }
3980
3981         commit_reversible_command ();
3982         selection->regions.clear ();
3983
3984   out:
3985         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
3986 }
3987
3988 void
3989 Editor::region_selection_op (void (Region::*pmf)(void))
3990 {
3991         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
3992                 Region* region = (*i)->region().get();
3993                 (region->*pmf)();
3994         }
3995 }
3996
3997
3998 void
3999 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4000 {
4001         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4002                 Region* region = (*i)->region().get();
4003                 (region->*pmf)(arg);
4004         }
4005 }
4006
4007 void
4008 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4009 {
4010         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4011                 Region* region = (*i)->region().get();
4012                 (region->*pmf)(yn);
4013         }
4014 }
4015
4016 void
4017 Editor::external_edit_region ()
4018 {
4019         if (!clicked_regionview) {
4020                 return;
4021         }
4022
4023         /* more to come */
4024 }
4025
4026 void
4027 Editor::brush (nframes_t pos)
4028 {
4029         RegionSelection sel;
4030         snap_to (pos);
4031
4032         if (selection->regions.empty()) {
4033                 /* XXX get selection from region list */
4034         } else {
4035                 sel = selection->regions;
4036         }
4037
4038         if (sel.empty()) {
4039                 return;
4040         }
4041
4042         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4043                 mouse_brush_insert_region ((*i), pos);
4044         }
4045 }
4046
4047 void
4048 Editor::reset_region_gain_envelopes ()
4049 {
4050         if (!session || selection->regions.empty()) {
4051                 return;
4052         }
4053
4054         session->begin_reversible_command (_("reset region gain"));
4055
4056         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4057                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4058                 if (arv) {
4059                         AutomationList& alist (arv->audio_region()->envelope());
4060                         XMLNode& before (alist.get_state());
4061
4062                         arv->audio_region()->set_default_envelope ();
4063                         session->add_command (new MementoCommand<AutomationList>(arv->audio_region()->envelope(), &before, &alist.get_state()));
4064                 }
4065         }
4066
4067         session->commit_reversible_command ();
4068 }
4069
4070 void
4071 Editor::toggle_gain_envelope_visibility ()
4072 {
4073         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4074                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4075                 if (arv) {
4076                         bool x = region_envelope_visible_item->get_active();
4077                         if (x != arv->envelope_visible()) {
4078                                 arv->set_envelope_visible (x);
4079                         }
4080                 }
4081         }
4082 }
4083
4084 void
4085 Editor::toggle_gain_envelope_active ()
4086 {
4087         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4088                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4089                 if (arv) {
4090                         bool x = region_envelope_active_item->get_active();
4091                         if (x != arv->audio_region()->envelope_active()) {
4092                                 arv->audio_region()->set_envelope_active (x);
4093                         }
4094                 }
4095         }
4096 }
4097
4098 void
4099 Editor::toggle_region_lock ()
4100 {
4101         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4102                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4103                 if (arv) {
4104                         bool x = region_lock_item->get_active();
4105                         if (x != arv->audio_region()->locked()) {
4106                                 arv->audio_region()->set_locked (x);
4107                         }
4108                 }
4109         }
4110 }
4111
4112 void
4113 Editor::toggle_region_mute ()
4114 {
4115         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4116                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4117                 if (arv) {
4118                         bool x = region_mute_item->get_active();
4119                         if (x != arv->audio_region()->muted()) {
4120                                 arv->audio_region()->set_muted (x);
4121                         }
4122                 }
4123         }
4124 }
4125
4126 void
4127 Editor::toggle_region_opaque ()
4128 {
4129         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4130                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4131                 if (arv) {
4132                         bool x = region_opaque_item->get_active();
4133                         if (x != arv->audio_region()->opaque()) {
4134                                 arv->audio_region()->set_opaque (x);
4135                         }
4136                 }
4137         }
4138 }
4139
4140 void
4141 Editor::set_fade_length (bool in)
4142 {
4143         ensure_entered_region_selected (true);
4144
4145         /* we need a region to measure the offset from the start */
4146
4147         RegionView* rv;
4148
4149         if (entered_regionview) {
4150                 rv = entered_regionview;
4151         } else if (!selection->regions.empty()) {
4152                 rv = selection->regions.front();
4153         } else {
4154                 return;
4155         }
4156
4157         nframes64_t pos = get_preferred_edit_position();
4158         nframes_t len;
4159         char* cmd;
4160
4161         if (in) {
4162                 if (pos <= rv->region()->position()) {
4163                         /* can't do it */
4164                         return;
4165                 }
4166                 len = pos - rv->region()->position();
4167                 cmd = _("set fade in length");
4168         } else {
4169                 if (pos >= rv->region()->last_frame()) {
4170                         /* can't do it */
4171                         return;
4172                 }
4173                 len = rv->region()->last_frame() - pos;
4174                 cmd = _("set fade out length");
4175         }
4176
4177         begin_reversible_command (cmd);
4178
4179         RegionSelection& rs (get_regions_for_action());
4180
4181         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4182                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4183
4184                 if (!tmp) {
4185                         return;
4186                 }
4187
4188                 AutomationList& alist = tmp->audio_region()->fade_in();
4189                 XMLNode &before = alist.get_state();
4190
4191                 if (in) {
4192                         tmp->audio_region()->set_fade_in_length (len);
4193                 } else {
4194                         tmp->audio_region()->set_fade_out_length (len);
4195                 }
4196
4197                 XMLNode &after = alist.get_state();
4198                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4199         }
4200
4201         commit_reversible_command ();
4202 }
4203
4204
4205 void
4206 Editor::toggle_fade_active (bool in)
4207 {
4208         ensure_entered_region_selected (true);
4209
4210         if (selection->regions.empty()) {
4211                 return;
4212         }
4213
4214         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4215         bool have_switch = false;
4216         bool yn;
4217         bool in_command = false;
4218
4219         begin_reversible_command (cmd);
4220
4221         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4222                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4223
4224                 if (!tmp) {
4225                         return;
4226                 }
4227
4228                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4229
4230                 /* make the behaviour consistent across all regions */
4231
4232                 if (!have_switch) {
4233                         yn = region->fade_in_active();
4234                         have_switch = true;
4235                 }
4236
4237                 XMLNode &before = region->get_state();
4238                 region->set_fade_in_active (!yn);
4239                 XMLNode &after = region->get_state();
4240                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4241                 in_command = true;
4242         }
4243
4244         if (in_command) {
4245                 commit_reversible_command ();
4246         }
4247 }
4248
4249 void
4250 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4251 {
4252         begin_reversible_command (_("set fade in shape"));
4253
4254         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4255                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4256
4257                 if (!tmp) {
4258                         return;
4259                 }
4260
4261                 AutomationList& alist = tmp->audio_region()->fade_in();
4262                 XMLNode &before = alist.get_state();
4263
4264                 tmp->audio_region()->set_fade_in_shape (shape);
4265
4266                 XMLNode &after = alist.get_state();
4267                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4268         }
4269
4270         commit_reversible_command ();
4271 }
4272
4273 void
4274 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4275 {
4276         begin_reversible_command (_("set fade out shape"));
4277
4278         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4279                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4280
4281                 if (!tmp) {
4282                         return;
4283                 }
4284
4285                 AutomationList& alist = tmp->audio_region()->fade_out();
4286                 XMLNode &before = alist.get_state();
4287
4288                 tmp->audio_region()->set_fade_out_shape (shape);
4289
4290                 XMLNode &after = alist.get_state();
4291                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4292         }
4293
4294         commit_reversible_command ();
4295 }
4296
4297 void
4298 Editor::set_fade_in_active (bool yn)
4299 {
4300         begin_reversible_command (_("set fade in active"));
4301
4302         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4303                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4304
4305                 if (!tmp) {
4306                         return;
4307                 }
4308
4309
4310                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4311
4312                 XMLNode &before = ar->get_state();
4313
4314                 ar->set_fade_in_active (yn);
4315
4316                 XMLNode &after = ar->get_state();
4317                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4318         }
4319 }
4320
4321 void
4322 Editor::set_fade_out_active (bool yn)
4323 {
4324         begin_reversible_command (_("set fade out active"));
4325
4326         for (RegionSelection::iterator x = selection->regions.begin(); x != selection->regions.end(); ++x) {
4327                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4328
4329                 if (!tmp) {
4330                         return;
4331                 }
4332
4333                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4334
4335                 XMLNode &before = ar->get_state();
4336
4337                 ar->set_fade_out_active (yn);
4338
4339                 XMLNode &after = ar->get_state();
4340                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4341         }
4342 }
4343
4344
4345 /** Update crossfade visibility after its configuration has been changed */
4346 void
4347 Editor::update_xfade_visibility ()
4348 {
4349         _xfade_visibility = Config->get_xfades_visible ();
4350
4351         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4352                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4353                 if (v) {
4354                         if (_xfade_visibility) {
4355                                 v->show_all_xfades ();
4356                         } else {
4357                                 v->hide_all_xfades ();
4358                         }
4359                 }
4360         }
4361 }
4362
4363 void
4364 Editor::set_edit_point ()
4365 {
4366         nframes64_t where;
4367         bool ignored;
4368
4369         if (!mouse_frame (where, ignored)) {
4370                 return;
4371         }
4372
4373         snap_to (where);
4374
4375         if (selection->markers.empty()) {
4376
4377                 mouse_add_new_marker (where);
4378
4379         } else {
4380                 bool ignored;
4381
4382                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
4383
4384                 if (loc) {
4385                         loc->move_to (where);
4386                 }
4387         }
4388 }
4389
4390 void
4391 Editor::set_playhead_cursor ()
4392 {
4393         if (entered_marker) {
4394                 session->request_locate (entered_marker->position(), session->transport_rolling());
4395         } else {
4396                 nframes64_t where;
4397                 bool ignored;
4398
4399                 if (!mouse_frame (where, ignored)) {
4400                         return;
4401                 }
4402
4403                 snap_to (where);
4404
4405                 if (session) {
4406                         session->request_locate (where, session->transport_rolling());
4407                 }
4408         }
4409 }
4410
4411 void
4412 Editor::split ()
4413 {
4414         ensure_entered_region_selected ();
4415
4416         nframes64_t where = get_preferred_edit_position();
4417
4418         if (!selection->regions.empty()) {
4419
4420                 split_regions_at (where, selection->regions);
4421
4422         } else {
4423
4424                 RegionSelection rs;
4425                 rs = get_regions_at (where, selection->tracks);
4426                 split_regions_at (where, rs);
4427         }
4428 }
4429
4430 void
4431 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
4432 {
4433         if (entered_track && mouse_mode == MouseObject) {
4434                 if (!selection->tracks.empty()) {
4435                         if (!selection->selected (entered_track)) {
4436                                 selection->add (entered_track);
4437                         }
4438                 } else {
4439                         /* there is no selection, but this operation requires/prefers selected objects */
4440
4441                         if (op_really_wants_one_track_if_none_are_selected) {
4442                                 selection->set (entered_track);
4443                         }
4444                 }
4445         }
4446 }
4447
4448 void
4449 Editor::ensure_entered_region_selected (bool op_really_wants_one_region_if_none_are_selected)
4450 {
4451         if (entered_regionview && mouse_mode == MouseObject) {
4452
4453                 /* heuristic:
4454
4455                    - if there is no existing selection, don't change it. the operation will thus apply to "all"
4456
4457                    - if there is an existing selection, but the entered regionview isn't in it, add it. this
4458                        avoids key-mouse ops on unselected regions from interfering with an existing selection,
4459                        but also means that the operation will apply to the pointed-at region.
4460                 */
4461
4462                 if (!selection->regions.empty()) {
4463                         if (find (selection->regions.begin(), selection->regions.end(), entered_regionview) != selection->regions.end()) {
4464                                 selection->add (entered_regionview);
4465                         }
4466                 } else {
4467                         /* there is no selection, but this operation requires/prefers selected objects */
4468
4469                         if (op_really_wants_one_region_if_none_are_selected) {
4470                                 selection->set (entered_regionview, false);
4471                         }
4472                 }
4473         }
4474 }
4475
4476 void
4477 Editor::trim_region_front ()
4478 {
4479         trim_region (true);
4480 }
4481
4482 void
4483 Editor::trim_region_back ()
4484 {
4485         trim_region (false);
4486 }
4487
4488 void
4489 Editor::trim_region (bool front)
4490 {
4491         nframes64_t where = get_preferred_edit_position();
4492         RegionSelection& rs = get_regions_for_action ();
4493
4494         if (rs.empty()) {
4495                 return;
4496         }
4497
4498         begin_reversible_command (front ? _("trim front") : _("trim back"));
4499
4500         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
4501                 if (!(*i)->region()->locked()) {
4502                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
4503                         XMLNode &before = pl->get_state();
4504                         if (front) {
4505                                 (*i)->region()->trim_front (where, this);
4506                         } else {
4507                                 (*i)->region()->trim_end (where, this);
4508                         }
4509                         XMLNode &after = pl->get_state();
4510                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
4511                 }
4512         }
4513         commit_reversible_command ();
4514 }
4515
4516 struct EditorOrderRouteSorter {
4517     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
4518             /* use of ">" forces the correct sort order */
4519             return a->order_key ("editor") < b->order_key ("editor");
4520     }
4521 };
4522
4523 void
4524 Editor::select_next_route()
4525 {
4526         if (selection->tracks.empty()) {
4527                 selection->set (track_views.front());
4528                 return;
4529         }
4530
4531         TimeAxisView* current = selection->tracks.front();
4532
4533         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4534                 if (*i == current) {
4535                         ++i;
4536                         if (i != track_views.end()) {
4537                                 selection->set (*i);
4538                         } else {
4539                                 selection->set (*(track_views.begin()));
4540                         }
4541                         break;
4542                 }
4543         }
4544 }
4545
4546 void
4547 Editor::select_prev_route()
4548 {
4549         if (selection->tracks.empty()) {
4550                 selection->set (track_views.front());
4551                 return;
4552         }
4553
4554         TimeAxisView* current = selection->tracks.front();
4555
4556         for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
4557                 if (*i == current) {
4558                         ++i;
4559                         if (i != track_views.rend()) {
4560                                 selection->set (*i);
4561                         } else {
4562                                 selection->set (*(track_views.rbegin()));
4563                         }
4564                         break;
4565                 }
4566         }
4567 }
4568
4569 void
4570 Editor::set_loop_from_selection (bool play)
4571 {
4572         if (session == 0 || selection->time.empty()) {
4573                 return;
4574         }
4575
4576         nframes_t start = selection->time[clicked_selection].start;
4577         nframes_t end = selection->time[clicked_selection].end;
4578
4579         set_loop_range (start, end,  _("set loop range from selection"));
4580
4581         if (play) {
4582                 session->request_play_loop (true);
4583                 session->request_locate (start, true);
4584         }
4585 }
4586
4587 void
4588 Editor::set_loop_from_edit_range (bool play)
4589 {
4590         if (session == 0) {
4591                 return;
4592         }
4593
4594         nframes64_t start;
4595         nframes64_t end;
4596
4597         if (!get_edit_op_range (start, end)) {
4598                 return;
4599         }
4600
4601         set_loop_range (start, end,  _("set loop range from edit range"));
4602
4603         if (play) {
4604                 session->request_play_loop (true);
4605                 session->request_locate (start, true);
4606         }
4607 }
4608
4609 void
4610 Editor::set_loop_from_region (bool play)
4611 {
4612         nframes64_t start = max_frames;
4613         nframes64_t end = 0;
4614
4615         ensure_entered_region_selected (true);
4616
4617         if (selection->regions.empty()) {
4618                 info << _("cannot set loop: no region selected") << endmsg;
4619                 return;
4620         }
4621
4622         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4623                 if ((*i)->region()->position() < start) {
4624                         start = (*i)->region()->position();
4625                 }
4626                 if ((*i)->region()->last_frame() + 1 > end) {
4627                         end = (*i)->region()->last_frame() + 1;
4628                 }
4629         }
4630
4631         set_loop_range (start, end, _("set loop range from region"));
4632
4633         if (play) {
4634                 session->request_play_loop (true);
4635                 session->request_locate (start, true);
4636         }
4637 }
4638
4639 void
4640 Editor::set_punch_from_selection ()
4641 {
4642         if (session == 0 || selection->time.empty()) {
4643                 return;
4644         }
4645
4646         nframes_t start = selection->time[clicked_selection].start;
4647         nframes_t end = selection->time[clicked_selection].end;
4648
4649         set_punch_range (start, end,  _("set punch range from selection"));
4650 }
4651
4652 void
4653 Editor::set_punch_from_edit_range ()
4654 {
4655         if (session == 0) {
4656                 return;
4657         }
4658
4659         nframes64_t start;
4660         nframes64_t end;
4661
4662         if (!get_edit_op_range (start, end)) {
4663                 return;
4664         }
4665
4666         set_punch_range (start, end,  _("set punch range from edit range"));
4667 }
4668
4669 void
4670 Editor::pitch_shift_regions ()
4671 {
4672         ensure_entered_region_selected (true);
4673
4674         if (selection->regions.empty()) {
4675                 return;
4676         }
4677
4678         pitch_shift (selection->regions, 1.2);
4679 }
4680