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 #include <set>
  27
  28 #include <pbd/error.h>
  29 #include <pbd/basename.h>
  30 #include <pbd/pthread_utils.h>
  31 #include <pbd/memento_command.h>
  32 #include <pbd/whitespace.h>
  33
  34 #include <gtkmm2ext/utils.h>
  35 #include <gtkmm2ext/choice.h>
  36 #include <gtkmm2ext/window_title.h>
  37 #include <gtkmm2ext/popup.h>
  38
  39
  40 #include <ardour/audioengine.h>
  41 #include <ardour/session.h>
  42 #include <ardour/audioplaylist.h>
  43 #include <ardour/audioregion.h>
  44 #include <ardour/audio_diskstream.h>
  45 #include <ardour/utils.h>
  46 #include <ardour/location.h>
  47 #include <ardour/named_selection.h>
  48 #include <ardour/audio_track.h>
  49 #include <ardour/audiofilesource.h>
  50 #include <ardour/audioplaylist.h>
  51 #include <ardour/region_factory.h>
  52 #include <ardour/playlist_factory.h>
  53 #include <ardour/reverse.h>
  54 #include <ardour/transient_detector.h>
  55 #include <ardour/dB.h>
  56
  57 #include "ardour_ui.h"
  58 #include "editor.h"
  59 #include "time_axis_view.h"
  60 #include "route_time_axis.h"
  61 #include "audio_time_axis.h"
  62 #include "automation_time_axis.h"
  63 #include "streamview.h"
  64 #include "audio_region_view.h"
  65 #include "rgb_macros.h"
  66 #include "selection_templates.h"
  67 #include "selection.h"
  68 #include "editing.h"
  69 #include "gtk-custom-hruler.h"
  70 #include "gui_thread.h"
  71 #include "keyboard.h"
  72 #include "utils.h"
  73
  74 #include "i18n.h"
  75
  76 using namespace std;
  77 using namespace ARDOUR;
  78 using namespace PBD;
  79 using namespace sigc;
  80 using namespace Gtk;
  81 using namespace Gtkmm2ext;
  82 using namespace Editing;
  83
  84 /***********************************************************************
  85   Editor operations
  86  ***********************************************************************/
  87
  88 void
  89 Editor::undo (uint32_t n)
  90 {
  91         if (session) {
  92                 session->undo (n);
  93         }
  94 }
  95
  96 void
  97 Editor::redo (uint32_t n)
  98 {
  99         if (session) {
 100                 session->redo (n);
 101         }
 102 }
 103
 104 void
 105 Editor::split_region ()
 106 {
 107         split_region_at (get_preferred_edit_position());
 108 }
 109
 110 void
 111 Editor::split_region_at (nframes64_t where)
 112 {
 113         RegionSelection rs;
 114
 115         get_regions_for_action (rs);
 116         split_regions_at (where, selection->regions);
 117 }
 118
 119 void
 120 Editor::split_regions_at (nframes64_t where, RegionSelection& regions)
 121 {
 122         if (regions.empty()) {
 123                 return;
 124         }
 125
 126         begin_reversible_command (_("split"));
 127
 128         // if splitting a single region, and snap-to is using
 129         // region boundaries, don't pay attention to them
 130
 131         if (regions.size() == 1) {
 132                 switch (snap_type) {
 133                 case SnapToRegionStart:
 134                 case SnapToRegionSync:
 135                 case SnapToRegionEnd:
 136                         break;
 137                 default:
 138                         snap_to (where);
 139                 }
 140         } else {
 141                 snap_to (where);
 142         }
 143
 144         cerr << "Split " << regions.size() << " at " << where << endl;
 145
 146         for (RegionSelection::iterator a = regions.begin(); a != regions.end(); ) {
 147
 148                 RegionSelection::iterator tmp;
 149
 150                 /* XXX this test needs to be more complicated, to make sure we really
 151                    have something to split.
 152                 */
 153
 154                 if (!(*a)->region()->covers (where)) {
 155                         ++a;
 156                         continue;
 157                 }
 158
 159                 tmp = a;
 160                 ++tmp;
 161
 162                 boost::shared_ptr<Playlist> pl = (*a)->region()->playlist();
 163
 164                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*a);
 165
 166                 if (arv) {
 167                         _new_regionviews_show_envelope = arv->envelope_visible();
 168                 }
 169
 170                 if (pl) {
 171                         XMLNode &before = pl->get_state();
 172                         pl->split_region ((*a)->region(), where);
 173                         XMLNode &after = pl->get_state();
 174                         session->add_command(new MementoCommand<Playlist>(*pl, &before, &after));
 175                 }
 176
 177                 a = tmp;
 178         }
 179
 180         commit_reversible_command ();
 181         _new_regionviews_show_envelope = false;
 182 }
 183
 184 void
 185 Editor::remove_clicked_region ()
 186 {
 187         if (clicked_audio_trackview == 0 || clicked_regionview == 0) {
 188                 return;
 189         }
 190
 191         boost::shared_ptr<Playlist> playlist = clicked_audio_trackview->playlist();
 192
 193         begin_reversible_command (_("remove region"));
 194         XMLNode &before = playlist->get_state();
 195         playlist->remove_region (clicked_regionview->region());
 196         XMLNode &after = playlist->get_state();
 197         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
 198         commit_reversible_command ();
 199 }
 200
 201 void
 202 Editor::destroy_clicked_region ()
 203 {
 204         uint32_t selected = selection->regions.size();
 205
 206         if (!session || !selected) {
 207                 return;
 208         }
 209
 210         vector<string> choices;
 211         string prompt;
 212
 213         prompt  = string_compose (_(" This is destructive, will possibly delete audio files\n\
 214 It cannot be undone\n\
 215 Do you really want to destroy %1 ?"),
 216                            (selected > 1 ?
 217                             _("these regions") : _("this region")));
 218
 219         choices.push_back (_("No, do nothing."));
 220
 221         if (selected > 1) {
 222                 choices.push_back (_("Yes, destroy them."));
 223         } else {
 224                 choices.push_back (_("Yes, destroy it."));
 225         }
 226
 227         Gtkmm2ext::Choice prompter (prompt, choices);
 228
 229         if (prompter.run() == 0) { /* first choice */
 230                 return;
 231         }
 232
 233         if (selected) {
 234                 list<boost::shared_ptr<Region> > r;
 235
 236                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
 237                         r.push_back ((*i)->region());
 238                 }
 239
 240                 session->destroy_regions (r);
 241         }
 242 }
 243
 244 boost::shared_ptr<Region>
 245 Editor::select_region_for_operation (int dir, TimeAxisView **tv)
 246 {
 247         RegionView* rv;
 248         boost::shared_ptr<Region> region;
 249         nframes64_t start = 0;
 250
 251         if (selection->time.start () == selection->time.end_frame ()) {
 252
 253                 /* no current selection-> is there a selected regionview? */
 254
 255                 if (selection->regions.empty()) {
 256                         return region;
 257                 }
 258
 259         }
 260
 261         if (!selection->regions.empty()) {
 262
 263                 rv = *(selection->regions.begin());
 264                 (*tv) = &rv->get_time_axis_view();
 265                 region = rv->region();
 266
 267         } else if (!selection->tracks.empty()) {
 268
 269                 (*tv) = selection->tracks.front();
 270
 271                 RouteTimeAxisView* rtv;
 272
 273                 if ((rtv = dynamic_cast<RouteTimeAxisView*> (*tv)) != 0) {
 274                         boost::shared_ptr<Playlist> pl;
 275
 276                         if ((pl = rtv->playlist()) == 0) {
 277                                 return region;
 278                         }
 279
 280                         region = pl->top_region_at (start);
 281                 }
 282         }
 283
 284         return region;
 285 }
 286
 287 void
 288 Editor::extend_selection_to_end_of_region (bool next)
 289 {
 290         TimeAxisView *tv;
 291         boost::shared_ptr<Region> region;
 292         nframes64_t start;
 293
 294         if ((region = select_region_for_operation (next ? 1 : 0, &tv)) == 0) {
 295                 return;
 296         }
 297
 298         if (region && selection->time.start () == selection->time.end_frame ()) {
 299                 start = region->position();
 300         } else {
 301                 start = selection->time.start ();
 302         }
 303
 304         /* Try to leave the selection with the same route if possible */
 305
 306         if ((tv = selection->time.track) == 0) {
 307                 return;
 308         }
 309
 310         begin_reversible_command (_("extend selection"));
 311         selection->set (tv, start, region->position() + region->length());
 312         commit_reversible_command ();
 313 }
 314
 315 void
 316 Editor::extend_selection_to_start_of_region (bool previous)
 317 {
 318         TimeAxisView *tv;
 319         boost::shared_ptr<Region> region;
 320         nframes64_t end;
 321
 322         if ((region = select_region_for_operation (previous ? -1 : 0, &tv)) == 0) {
 323                 return;
 324         }
 325
 326         if (region && selection->time.start () == selection->time.end_frame ()) {
 327                 end = region->position() + region->length();
 328         } else {
 329                 end = selection->time.end_frame ();
 330         }
 331
 332         /* Try to leave the selection with the same route if possible */
 333
 334         if ((tv = selection->time.track) == 0) {
 335                 return;
 336         }
 337
 338         begin_reversible_command (_("extend selection"));
 339         selection->set (tv, region->position(), end);
 340         commit_reversible_command ();
 341 }
 342
 343 bool
 344 Editor::nudge_forward_release (GdkEventButton* ev)
 345 {
 346         if (ev->state & Keyboard::PrimaryModifier) {
 347                 nudge_forward (false, true);
 348         } else {
 349                 nudge_forward (false, false);
 350         }
 351         return false;
 352 }
 353
 354 bool
 355 Editor::nudge_backward_release (GdkEventButton* ev)
 356 {
 357         if (ev->state & Keyboard::PrimaryModifier) {
 358                 nudge_backward (false, true);
 359         } else {
 360                 nudge_backward (false, false);
 361         }
 362         return false;
 363 }
 364
 365
 366 void
 367 Editor::nudge_forward (bool next, bool force_playhead)
 368 {
 369         nframes64_t distance;
 370         nframes64_t next_distance;
 371         RegionSelection rs;
 372
 373         get_regions_for_action (rs);
 374
 375         if (!session) return;
 376
 377         if (!force_playhead && !rs.empty()) {
 378
 379                 begin_reversible_command (_("nudge regions forward"));
 380
 381                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 382                         boost::shared_ptr<Region> r ((*i)->region());
 383
 384                         distance = get_nudge_distance (r->position(), next_distance);
 385
 386                         if (next) {
 387                                 distance = next_distance;
 388                         }
 389
 390                         XMLNode &before = r->playlist()->get_state();
 391                         r->set_position (r->position() + distance, this);
 392                         XMLNode &after = r->playlist()->get_state();
 393                         session->add_command (new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 394                 }
 395
 396                 commit_reversible_command ();
 397
 398
 399         } else if (!force_playhead && !selection->markers.empty()) {
 400
 401                 bool is_start;
 402                 Location* loc = find_location_from_marker (selection->markers.front(), is_start);
 403
 404                 if (loc) {
 405
 406                         begin_reversible_command (_("nudge location forward"));
 407
 408                         XMLNode& before (loc->get_state());
 409
 410                         if (is_start) {
 411                                 distance = get_nudge_distance (loc->start(), next_distance);
 412                                 if (next) {
 413                                         distance = next_distance;
 414                                 }
 415                                 if (max_frames - distance > loc->start() + loc->length()) {
 416                                         loc->set_start (loc->start() + distance);
 417                                 } else {
 418                                         loc->set_start (max_frames - loc->length());
 419                                 }
 420                         } else {
 421                                 distance = get_nudge_distance (loc->end(), next_distance);
 422                                 if (next) {
 423                                         distance = next_distance;
 424                                 }
 425                                 if (max_frames - distance > loc->end()) {
 426                                         loc->set_end (loc->end() + distance);
 427                                 } else {
 428                                         loc->set_end (max_frames);
 429                                 }
 430                         }
 431                         XMLNode& after (loc->get_state());
 432                         session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 433                         commit_reversible_command ();
 434                 }
 435
 436         } else {
 437                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 438                 session->request_locate (playhead_cursor->current_frame + distance);
 439         }
 440 }
 441
 442 void
 443 Editor::nudge_backward (bool next, bool force_playhead)
 444 {
 445         nframes64_t distance;
 446         nframes64_t next_distance;
 447         RegionSelection rs;
 448
 449         get_regions_for_action (rs);
 450
 451         if (!session) return;
 452
 453         if (!force_playhead && !rs.empty()) {
 454
 455                 begin_reversible_command (_("nudge regions backward"));
 456
 457                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 458                         boost::shared_ptr<Region> r ((*i)->region());
 459
 460                         distance = get_nudge_distance (r->position(), next_distance);
 461
 462                         if (next) {
 463                                 distance = next_distance;
 464                         }
 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         } else if (!force_playhead && !selection->markers.empty()) {
 480
 481                 bool is_start;
 482                 Location* loc = find_location_from_marker (selection->markers.front(), is_start);
 483
 484                 if (loc) {
 485
 486                         begin_reversible_command (_("nudge location forward"));
 487                         XMLNode& before (loc->get_state());
 488
 489                         if (is_start) {
 490                                 distance = get_nudge_distance (loc->start(), next_distance);
 491                                 if (next) {
 492                                         distance = next_distance;
 493                                 }
 494                                 if (distance < loc->start()) {
 495                                         loc->set_start (loc->start() - distance);
 496                                 } else {
 497                                         loc->set_start (0);
 498                                 }
 499                         } else {
 500                                 distance = get_nudge_distance (loc->end(), next_distance);
 501
 502                                 if (next) {
 503                                         distance = next_distance;
 504                                 }
 505
 506                                 if (distance < loc->end() - loc->length()) {
 507                                         loc->set_end (loc->end() - distance);
 508                                 } else {
 509                                         loc->set_end (loc->length());
 510                                 }
 511                         }
 512
 513                         XMLNode& after (loc->get_state());
 514                         session->add_command (new MementoCommand<Location>(*loc, &before, &after));
 515                 }
 516
 517         } else {
 518
 519                 distance = get_nudge_distance (playhead_cursor->current_frame, next_distance);
 520
 521                 if (playhead_cursor->current_frame > distance) {
 522                         session->request_locate (playhead_cursor->current_frame - distance);
 523                 } else {
 524                         session->goto_start();
 525                 }
 526         }
 527 }
 528
 529 void
 530 Editor::nudge_forward_capture_offset ()
 531 {
 532         nframes64_t distance;
 533         RegionSelection rs;
 534
 535         get_regions_for_action (rs);
 536
 537         if (!session) return;
 538
 539         if (!rs.empty()) {
 540
 541                 begin_reversible_command (_("nudge forward"));
 542
 543                 distance = session->worst_output_latency();
 544
 545                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 546                         boost::shared_ptr<Region> r ((*i)->region());
 547
 548                         XMLNode &before = r->playlist()->get_state();
 549                         r->set_position (r->position() + distance, this);
 550                         XMLNode &after = r->playlist()->get_state();
 551                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 552                 }
 553
 554                 commit_reversible_command ();
 555
 556         }
 557 }
 558
 559 void
 560 Editor::nudge_backward_capture_offset ()
 561 {
 562         nframes64_t distance;
 563         RegionSelection rs;
 564
 565         get_regions_for_action (rs);
 566
 567         if (!session) return;
 568
 569         if (!rs.empty()) {
 570
 571                 begin_reversible_command (_("nudge forward"));
 572
 573                 distance = session->worst_output_latency();
 574
 575                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
 576                         boost::shared_ptr<Region> r ((*i)->region());
 577
 578                         XMLNode &before = r->playlist()->get_state();
 579
 580                         if (r->position() > distance) {
 581                                 r->set_position (r->position() - distance, this);
 582                         } else {
 583                                 r->set_position (0, this);
 584                         }
 585                         XMLNode &after = r->playlist()->get_state();
 586                         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
 587                 }
 588
 589                 commit_reversible_command ();
 590         }
 591 }
 592
 593 /* DISPLAY MOTION */
 594
 595 void
 596 Editor::move_to_start ()
 597 {
 598         session->goto_start ();
 599 }
 600
 601 void
 602 Editor::move_to_end ()
 603 {
 604
 605         session->request_locate (session->current_end_frame());
 606 }
 607
 608 void
 609 Editor::build_region_boundary_cache ()
 610 {
 611         nframes64_t pos = 0;
 612         vector<RegionPoint> interesting_points;
 613         boost::shared_ptr<Region> r;
 614         TrackViewList tracks;
 615         bool at_end = false;
 616
 617         region_boundary_cache.clear ();
 618
 619         if (session == 0) {
 620                 return;
 621         }
 622
 623         switch (snap_type) {
 624         case SnapToRegionStart:
 625                 interesting_points.push_back (Start);
 626                 break;
 627         case SnapToRegionEnd:
 628                 interesting_points.push_back (End);
 629                 break;
 630         case SnapToRegionSync:
 631                 interesting_points.push_back (SyncPoint);
 632                 break;
 633         case SnapToRegionBoundary:
 634                 interesting_points.push_back (Start);
 635                 interesting_points.push_back (End);
 636                 break;
 637         default:
 638                 fatal << string_compose (_("build_region_boundary_cache called with snap_type = %1"), snap_type) << endmsg;
 639                 /*NOTREACHED*/
 640                 return;
 641         }
 642
 643         TimeAxisView *ontrack = 0;
 644         TrackViewList tlist;
 645
 646         if (!selection->tracks.empty()) {
 647                 tlist = selection->tracks;
 648         } else {
 649                 tlist = track_views;
 650         }
 651
 652         while (pos < session->current_end_frame() && !at_end) {
 653
 654                 nframes64_t rpos;
 655                 nframes64_t lpos = max_frames;
 656
 657                 for (vector<RegionPoint>::iterator p = interesting_points.begin(); p != interesting_points.end(); ++p) {
 658
 659                         if ((r = find_next_region (pos, *p, 1, tlist, &ontrack)) == 0) {
 660                                 if (*p == interesting_points.back()) {
 661                                         at_end = true;
 662                                 }
 663                                 /* move to next point type */
 664                                 continue;
 665                         }
 666
 667                         switch (*p) {
 668                         case Start:
 669                                 rpos = r->first_frame();
 670                                 break;
 671
 672                         case End:
 673                                 rpos = r->last_frame();
 674                                 break;
 675
 676                         case SyncPoint:
 677                                 rpos = r->adjust_to_sync (r->first_frame());
 678                                 break;
 679
 680                         default:
 681                                 break;
 682                         }
 683
 684                         float speed = 1.0f;
 685                         AudioTimeAxisView *atav;
 686
 687                         if (ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 688                                 if (atav->get_diskstream() != 0) {
 689                                         speed = atav->get_diskstream()->speed();
 690                                 }
 691                         }
 692
 693                         rpos = track_frame_to_session_frame (rpos, speed);
 694
 695                         if (rpos < lpos) {
 696                                 lpos = rpos;
 697                         }
 698
 699                         /* prevent duplicates, but we don't use set<> because we want to be able
 700                            to sort later.
 701                         */
 702
 703                         vector<nframes64_t>::iterator ri;
 704
 705                         for (ri = region_boundary_cache.begin(); ri != region_boundary_cache.end(); ++ri) {
 706                                 if (*ri == rpos) {
 707                                         break;
 708                                 }
 709                         }
 710
 711                         if (ri == region_boundary_cache.end()) {
 712                                 region_boundary_cache.push_back (rpos);
 713                         }
 714                 }
 715
 716                 pos = lpos + 1;
 717         }
 718
 719         /* finally sort to be sure that the order is correct */
 720
 721         sort (region_boundary_cache.begin(), region_boundary_cache.end());
 722 }
 723
 724 boost::shared_ptr<Region>
 725 Editor::find_next_region (nframes64_t frame, RegionPoint point, int32_t dir, TrackViewList& tracks, TimeAxisView **ontrack)
 726 {
 727         TrackViewList::iterator i;
 728         nframes64_t closest = max_frames;
 729         boost::shared_ptr<Region> ret;
 730         nframes64_t rpos = 0;
 731
 732         float track_speed;
 733         nframes64_t track_frame;
 734         AudioTimeAxisView *atav;
 735
 736         for (i = tracks.begin(); i != tracks.end(); ++i) {
 737
 738                 nframes64_t distance;
 739                 boost::shared_ptr<Region> r;
 740
 741                 track_speed = 1.0f;
 742                 if ( (atav = dynamic_cast<AudioTimeAxisView*>(*i)) != 0 ) {
 743                         if (atav->get_diskstream()!=0)
 744                                 track_speed = atav->get_diskstream()->speed();
 745                 }
 746
 747                 track_frame = session_frame_to_track_frame(frame, track_speed);
 748
 749                 if ((r = (*i)->find_next_region (track_frame, point, dir)) == 0) {
 750                         continue;
 751                 }
 752
 753                 switch (point) {
 754                 case Start:
 755                         rpos = r->first_frame ();
 756                         break;
 757
 758                 case End:
 759                         rpos = r->last_frame ();
 760                         break;
 761
 762                 case SyncPoint:
 763                         rpos = r->adjust_to_sync (r->first_frame());
 764                         break;
 765                 }
 766
 767                 // rpos is a "track frame", converting it to "session frame"
 768                 rpos = track_frame_to_session_frame(rpos, track_speed);
 769
 770                 if (rpos > frame) {
 771                         distance = rpos - frame;
 772                 } else {
 773                         distance = frame - rpos;
 774                 }
 775
 776                 if (distance < closest) {
 777                         closest = distance;
 778                         if (ontrack != 0)
 779                                 *ontrack = (*i);
 780                         ret = r;
 781                 }
 782         }
 783
 784         return ret;
 785 }
 786
 787 nframes64_t
 788 Editor::find_next_region_boundary (nframes64_t pos, int32_t dir, const TrackViewList& tracks)
 789 {
 790         nframes64_t distance = max_frames;
 791         nframes64_t current_nearest = -1;
 792
 793         for (TrackViewList::const_iterator i = tracks.begin(); i != tracks.end(); ++i) {
 794                 nframes64_t contender;
 795                 nframes64_t d;
 796
 797                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*i);
 798
 799                 if (!rtv) {
 800                         continue;
 801                 }
 802
 803                 if ((contender = rtv->find_next_region_boundary (pos, dir)) < 0) {
 804                         continue;
 805                 }
 806
 807                 d = ::llabs (pos - contender);
 808
 809                 if (d < distance) {
 810                         current_nearest = contender;
 811                         distance = d;
 812                 }
 813         }
 814
 815         return current_nearest;
 816 }
 817
 818 void
 819 Editor::cursor_to_region_boundary (Cursor* cursor, int32_t dir)
 820 {
 821         nframes64_t pos = cursor->current_frame;
 822         nframes64_t target;
 823
 824         if (!session) {
 825                 return;
 826         }
 827
 828         // so we don't find the current region again..
 829         if (dir > 0 || pos > 0) {
 830                 pos += dir;
 831         }
 832
 833         if (!selection->tracks.empty()) {
 834
 835                 target = find_next_region_boundary (pos, dir, selection->tracks);
 836
 837         } else {
 838
 839                 target = find_next_region_boundary (pos, dir, track_views);
 840         }
 841
 842         if (target < 0) {
 843                 return;
 844         }
 845
 846
 847         if (cursor == playhead_cursor) {
 848                 session->request_locate (target);
 849         } else {
 850                 cursor->set_position (target);
 851         }
 852 }
 853
 854 void
 855 Editor::cursor_to_next_region_boundary (Cursor* cursor)
 856 {
 857         cursor_to_region_boundary (cursor, 1);
 858 }
 859
 860 void
 861 Editor::cursor_to_previous_region_boundary (Cursor* cursor)
 862 {
 863         cursor_to_region_boundary (cursor, -1);
 864 }
 865
 866 void
 867 Editor::cursor_to_region_point (Cursor* cursor, RegionPoint point, int32_t dir)
 868 {
 869         boost::shared_ptr<Region> r;
 870         nframes64_t pos = cursor->current_frame;
 871
 872         if (!session) {
 873                 return;
 874         }
 875
 876         TimeAxisView *ontrack = 0;
 877
 878         // so we don't find the current region again..
 879         if (dir>0 || pos>0)
 880                 pos+=dir;
 881
 882         if (!selection->tracks.empty()) {
 883
 884                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
 885
 886         } else if (clicked_trackview) {
 887
 888                 TrackViewList t;
 889                 t.push_back (clicked_trackview);
 890
 891                 r = find_next_region (pos, point, dir, t, &ontrack);
 892
 893         } else {
 894
 895                 r = find_next_region (pos, point, dir, track_views, &ontrack);
 896         }
 897
 898         if (r == 0) {
 899                 return;
 900         }
 901
 902         switch (point){
 903         case Start:
 904                 pos = r->first_frame ();
 905                 break;
 906
 907         case End:
 908                 pos = r->last_frame ();
 909                 break;
 910
 911         case SyncPoint:
 912                 pos = r->adjust_to_sync (r->first_frame());
 913                 break;
 914         }
 915
 916         float speed = 1.0f;
 917         AudioTimeAxisView *atav;
 918
 919         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
 920                 if (atav->get_diskstream() != 0) {
 921                         speed = atav->get_diskstream()->speed();
 922                 }
 923         }
 924
 925         pos = track_frame_to_session_frame(pos, speed);
 926
 927         if (cursor == playhead_cursor) {
 928                 session->request_locate (pos);
 929         } else {
 930                 cursor->set_position (pos);
 931         }
 932 }
 933
 934 void
 935 Editor::cursor_to_next_region_point (Cursor* cursor, RegionPoint point)
 936 {
 937         cursor_to_region_point (cursor, point, 1);
 938 }
 939
 940 void
 941 Editor::cursor_to_previous_region_point (Cursor* cursor, RegionPoint point)
 942 {
 943         cursor_to_region_point (cursor, point, -1);
 944 }
 945
 946 void
 947 Editor::cursor_to_selection_start (Cursor *cursor)
 948 {
 949         nframes64_t pos = 0;
 950         RegionSelection rs;
 951
 952         get_regions_for_action (rs);
 953
 954         switch (mouse_mode) {
 955         case MouseObject:
 956                 if (!rs.empty()) {
 957                         pos = rs.start();
 958                 }
 959                 break;
 960
 961         case MouseRange:
 962                 if (!selection->time.empty()) {
 963                         pos = selection->time.start ();
 964                 }
 965                 break;
 966
 967         default:
 968                 return;
 969         }
 970
 971         if (cursor == playhead_cursor) {
 972                 session->request_locate (pos);
 973         } else {
 974                 cursor->set_position (pos);
 975         }
 976 }
 977
 978 void
 979 Editor::cursor_to_selection_end (Cursor *cursor)
 980 {
 981         nframes64_t pos = 0;
 982         RegionSelection rs;
 983
 984         get_regions_for_action (rs);
 985
 986         switch (mouse_mode) {
 987         case MouseObject:
 988                 if (!rs.empty()) {
 989                         pos = rs.end_frame();
 990                 }
 991                 break;
 992
 993         case MouseRange:
 994                 if (!selection->time.empty()) {
 995                         pos = selection->time.end_frame ();
 996                 }
 997                 break;
 998
 999         default:
1000                 return;
1001         }
1002
1003         if (cursor == playhead_cursor) {
1004                 session->request_locate (pos);
1005         } else {
1006                 cursor->set_position (pos);
1007         }
1008 }
1009
1010 void
1011 Editor::selected_marker_to_region_boundary (int32_t dir)
1012 {
1013         nframes64_t target;
1014         Location* loc;
1015         bool ignored;
1016
1017         if (!session) {
1018                 return;
1019         }
1020
1021         if (selection->markers.empty()) {
1022                 nframes64_t mouse;
1023                 bool ignored;
1024
1025                 if (!mouse_frame (mouse, ignored)) {
1026                         return;
1027                 }
1028
1029                 add_location_mark (mouse);
1030         }
1031
1032         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1033                 return;
1034         }
1035
1036         nframes64_t pos = loc->start();
1037
1038         // so we don't find the current region again..
1039         if (dir > 0 || pos > 0) {
1040                 pos += dir;
1041         }
1042
1043         if (!selection->tracks.empty()) {
1044
1045                 target = find_next_region_boundary (pos, dir, selection->tracks);
1046
1047         } else {
1048
1049                 target = find_next_region_boundary (pos, dir, track_views);
1050         }
1051
1052         if (target < 0) {
1053                 return;
1054         }
1055
1056         loc->move_to (target);
1057 }
1058
1059 void
1060 Editor::selected_marker_to_next_region_boundary ()
1061 {
1062         selected_marker_to_region_boundary (1);
1063 }
1064
1065 void
1066 Editor::selected_marker_to_previous_region_boundary ()
1067 {
1068         selected_marker_to_region_boundary (-1);
1069 }
1070
1071 void
1072 Editor::selected_marker_to_region_point (RegionPoint point, int32_t dir)
1073 {
1074         boost::shared_ptr<Region> r;
1075         nframes64_t pos;
1076         Location* loc;
1077         bool ignored;
1078
1079         if (!session || selection->markers.empty()) {
1080                 return;
1081         }
1082
1083         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1084                 return;
1085         }
1086
1087         TimeAxisView *ontrack = 0;
1088
1089         pos = loc->start();
1090
1091         // so we don't find the current region again..
1092         if (dir>0 || pos>0)
1093                 pos+=dir;
1094
1095         if (!selection->tracks.empty()) {
1096
1097                 r = find_next_region (pos, point, dir, selection->tracks, &ontrack);
1098
1099         } else if (clicked_trackview) {
1100
1101                 TrackViewList t;
1102                 t.push_back (clicked_trackview);
1103
1104                 r = find_next_region (pos, point, dir, t, &ontrack);
1105
1106         } else {
1107
1108                 r = find_next_region (pos, point, dir, track_views, &ontrack);
1109         }
1110
1111         if (r == 0) {
1112                 return;
1113         }
1114
1115         switch (point){
1116         case Start:
1117                 pos = r->first_frame ();
1118                 break;
1119
1120         case End:
1121                 pos = r->last_frame ();
1122                 break;
1123
1124         case SyncPoint:
1125                 pos = r->adjust_to_sync (r->first_frame());
1126                 break;
1127         }
1128
1129         float speed = 1.0f;
1130         AudioTimeAxisView *atav;
1131
1132         if ( ontrack != 0 && (atav = dynamic_cast<AudioTimeAxisView*>(ontrack)) != 0 ) {
1133                 if (atav->get_diskstream() != 0) {
1134                         speed = atav->get_diskstream()->speed();
1135                 }
1136         }
1137
1138         pos = track_frame_to_session_frame(pos, speed);
1139
1140         loc->move_to (pos);
1141 }
1142
1143 void
1144 Editor::selected_marker_to_next_region_point (RegionPoint point)
1145 {
1146         selected_marker_to_region_point (point, 1);
1147 }
1148
1149 void
1150 Editor::selected_marker_to_previous_region_point (RegionPoint point)
1151 {
1152         selected_marker_to_region_point (point, -1);
1153 }
1154
1155 void
1156 Editor::selected_marker_to_selection_start ()
1157 {
1158         nframes64_t pos = 0;
1159         Location* loc;
1160         bool ignored;
1161
1162         if (!session || selection->markers.empty()) {
1163                 return;
1164         }
1165
1166         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1167                 return;
1168         }
1169
1170         RegionSelection rs;
1171
1172         get_regions_for_action (rs);
1173
1174         switch (mouse_mode) {
1175         case MouseObject:
1176                 if (!rs.empty()) {
1177                         pos = rs.start();
1178                 }
1179                 break;
1180
1181         case MouseRange:
1182                 if (!selection->time.empty()) {
1183                         pos = selection->time.start ();
1184                 }
1185                 break;
1186
1187         default:
1188                 return;
1189         }
1190
1191         loc->move_to (pos);
1192 }
1193
1194 void
1195 Editor::selected_marker_to_selection_end ()
1196 {
1197         nframes64_t pos = 0;
1198         Location* loc;
1199         bool ignored;
1200
1201         if (!session || selection->markers.empty()) {
1202                 return;
1203         }
1204
1205         if ((loc = find_location_from_marker (selection->markers.front(), ignored)) == 0) {
1206                 return;
1207         }
1208
1209         RegionSelection rs;
1210
1211         get_regions_for_action (rs);
1212
1213         switch (mouse_mode) {
1214         case MouseObject:
1215                 if (!rs.empty()) {
1216                         pos = rs.end_frame();
1217                 }
1218                 break;
1219
1220         case MouseRange:
1221                 if (!selection->time.empty()) {
1222                         pos = selection->time.end_frame ();
1223                 }
1224                 break;
1225
1226         default:
1227                 return;
1228         }
1229
1230         loc->move_to (pos);
1231 }
1232
1233 void
1234 Editor::scroll_playhead (bool forward)
1235 {
1236         nframes64_t pos = playhead_cursor->current_frame;
1237         nframes64_t delta = (nframes64_t) floor (current_page_frames() / 0.8);
1238
1239         if (forward) {
1240                 if (pos == max_frames) {
1241                         return;
1242                 }
1243
1244                 if (pos < max_frames - delta) {
1245                         pos += delta ;
1246                 } else {
1247                         pos = max_frames;
1248                 }
1249
1250         } else {
1251
1252                 if (pos == 0) {
1253                         return;
1254                 }
1255
1256                 if (pos > delta) {
1257                         pos -= delta;
1258                 } else {
1259                         pos = 0;
1260                 }
1261         }
1262
1263         session->request_locate (pos);
1264 }
1265
1266 void
1267 Editor::playhead_backward ()
1268 {
1269         nframes64_t pos;
1270         nframes64_t cnt;
1271         float prefix;
1272         bool was_floating;
1273
1274         if (get_prefix (prefix, was_floating)) {
1275                 cnt = 1;
1276         } else {
1277                 if (was_floating) {
1278                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1279                 } else {
1280                         cnt = (nframes64_t) prefix;
1281                 }
1282         }
1283
1284         pos = playhead_cursor->current_frame;
1285
1286         if ((nframes64_t) pos < cnt) {
1287                 pos = 0;
1288         } else {
1289                 pos -= cnt;
1290         }
1291
1292         /* XXX this is completely insane. with the current buffering
1293            design, we'll force a complete track buffer flush and
1294            reload, just to move 1 sample !!!
1295         */
1296
1297         session->request_locate (pos);
1298 }
1299
1300 void
1301 Editor::playhead_forward ()
1302 {
1303         nframes64_t pos;
1304         nframes64_t cnt;
1305         bool was_floating;
1306         float prefix;
1307
1308         if (get_prefix (prefix, was_floating)) {
1309                 cnt = 1;
1310         } else {
1311                 if (was_floating) {
1312                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1313                 } else {
1314                         cnt = (nframes64_t) floor (prefix);
1315                 }
1316         }
1317
1318         pos = playhead_cursor->current_frame;
1319
1320         /* XXX this is completely insane. with the current buffering
1321            design, we'll force a complete track buffer flush and
1322            reload, just to move 1 sample !!!
1323         */
1324
1325         session->request_locate (pos+cnt);
1326 }
1327
1328 void
1329 Editor::cursor_align (bool playhead_to_edit)
1330 {
1331         if (!session) {
1332                 return;
1333         }
1334
1335         if (playhead_to_edit) {
1336
1337                 if (selection->markers.empty()) {
1338                         return;
1339                 }
1340
1341                 session->request_locate (selection->markers.front()->position(), session->transport_rolling());
1342
1343         } else {
1344
1345                 /* move selected markers to playhead */
1346
1347                 for (MarkerSelection::iterator i = selection->markers.begin(); i != selection->markers.end(); ++i) {
1348                         bool ignored;
1349
1350                         Location* loc = find_location_from_marker (*i, ignored);
1351
1352                         if (loc->is_mark()) {
1353                                 loc->set_start (playhead_cursor->current_frame);
1354                         } else {
1355                                 loc->set (playhead_cursor->current_frame,
1356                                           playhead_cursor->current_frame + loc->length());
1357                         }
1358                 }
1359         }
1360 }
1361
1362 void
1363 Editor::edit_cursor_backward ()
1364 {
1365         nframes64_t pos;
1366         nframes64_t cnt;
1367         float prefix;
1368         bool was_floating;
1369
1370         if (get_prefix (prefix, was_floating)) {
1371                 cnt = 1;
1372         } else {
1373                 if (was_floating) {
1374                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1375                 } else {
1376                         cnt = (nframes64_t) prefix;
1377                 }
1378         }
1379
1380         if ((pos = get_preferred_edit_position()) < 0) {
1381                 return;
1382         }
1383
1384         if (pos < cnt) {
1385                 pos = 0;
1386         } else {
1387                 pos -= cnt;
1388         }
1389
1390         // EDIT CURSOR edit_cursor->set_position (pos);
1391 }
1392
1393 void
1394 Editor::edit_cursor_forward ()
1395 {
1396         //nframes64_t pos;
1397         nframes64_t cnt;
1398         bool was_floating;
1399         float prefix;
1400
1401         if (get_prefix (prefix, was_floating)) {
1402                 cnt = 1;
1403         } else {
1404                 if (was_floating) {
1405                         cnt = (nframes64_t) floor (prefix * session->frame_rate ());
1406                 } else {
1407                         cnt = (nframes64_t) floor (prefix);
1408                 }
1409         }
1410
1411         // pos = edit_cursor->current_frame;
1412         // EDIT CURSOR edit_cursor->set_position (pos+cnt);
1413 }
1414
1415 void
1416 Editor::goto_frame ()
1417 {
1418         float prefix;
1419         bool was_floating;
1420         nframes64_t frame;
1421
1422         if (get_prefix (prefix, was_floating)) {
1423                 return;
1424         }
1425
1426         if (was_floating) {
1427                 frame = (nframes64_t) floor (prefix * session->frame_rate());
1428         } else {
1429                 frame = (nframes64_t) floor (prefix);
1430         }
1431
1432         session->request_locate (frame);
1433 }
1434
1435 void
1436 Editor::scroll_backward (float pages)
1437 {
1438         nframes64_t frame;
1439         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1440         bool was_floating;
1441         float prefix;
1442         nframes64_t cnt;
1443
1444         if (get_prefix (prefix, was_floating)) {
1445                 cnt = (nframes64_t) floor (pages * one_page);
1446         } else {
1447                 if (was_floating) {
1448                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1449                 } else {
1450                         cnt = (nframes64_t) floor (prefix * one_page);
1451                 }
1452         }
1453
1454         if (leftmost_frame < cnt) {
1455                 frame = 0;
1456         } else {
1457                 frame = leftmost_frame - cnt;
1458         }
1459
1460         reset_x_origin (frame);
1461 }
1462
1463 void
1464 Editor::scroll_forward (float pages)
1465 {
1466         nframes64_t frame;
1467         nframes64_t one_page = (nframes64_t) rint (canvas_width * frames_per_unit);
1468         bool was_floating;
1469         float prefix;
1470         nframes64_t cnt;
1471
1472         if (get_prefix (prefix, was_floating)) {
1473                 cnt = (nframes64_t) floor (pages * one_page);
1474         } else {
1475                 if (was_floating) {
1476                         cnt = (nframes64_t) floor (prefix * session->frame_rate());
1477                 } else {
1478                         cnt = (nframes64_t) floor (prefix * one_page);
1479                 }
1480         }
1481
1482         if (max_frames - cnt < leftmost_frame) {
1483                 frame = max_frames - cnt;
1484         } else {
1485                 frame = leftmost_frame + cnt;
1486         }
1487
1488         reset_x_origin (frame);
1489 }
1490
1491 void
1492 Editor::scroll_tracks_down ()
1493 {
1494         float prefix;
1495         bool was_floating;
1496         int cnt;
1497
1498         if (get_prefix (prefix, was_floating)) {
1499                 cnt = 1;
1500         } else {
1501                 cnt = (int) floor (prefix);
1502         }
1503
1504         double vert_value = vertical_adjustment.get_value() + (cnt *
1505                 vertical_adjustment.get_page_size());
1506         if (vert_value > vertical_adjustment.get_upper() - canvas_height) {
1507                 vert_value = vertical_adjustment.get_upper() - canvas_height;
1508         }
1509         vertical_adjustment.set_value (vert_value);
1510 }
1511
1512 void
1513 Editor::scroll_tracks_up ()
1514 {
1515         float prefix;
1516         bool was_floating;
1517         int cnt;
1518
1519         if (get_prefix (prefix, was_floating)) {
1520                 cnt = 1;
1521         } else {
1522                 cnt = (int) floor (prefix);
1523         }
1524
1525         vertical_adjustment.set_value (vertical_adjustment.get_value() - (cnt * vertical_adjustment.get_page_size()));
1526 }
1527
1528 void
1529 Editor::scroll_tracks_down_line ()
1530 {
1531
1532         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1533         double vert_value = adj->get_value() + 20;
1534
1535         if (vert_value>adj->get_upper() - canvas_height) {
1536                 vert_value = adj->get_upper() - canvas_height;
1537         }
1538         adj->set_value (vert_value);
1539 }
1540
1541 void
1542 Editor::scroll_tracks_up_line ()
1543 {
1544         Gtk::Adjustment* adj = edit_vscrollbar.get_adjustment();
1545         adj->set_value (adj->get_value() - 20);
1546 }
1547
1548 /* ZOOM */
1549
1550 void
1551 Editor::temporal_zoom_step (bool coarser)
1552 {
1553         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::temporal_zoom_step), coarser));
1554
1555         double nfpu;
1556
1557         nfpu = frames_per_unit;
1558
1559         if (coarser) {
1560                 nfpu *= 1.61803399;
1561         } else {
1562                 nfpu = max(1.0,(nfpu/1.61803399));
1563         }
1564
1565         temporal_zoom (nfpu);
1566 }
1567
1568 void
1569 Editor::temporal_zoom (gdouble fpu)
1570 {
1571         if (!session) return;
1572
1573         nframes64_t current_page = current_page_frames();
1574         nframes64_t current_leftmost = leftmost_frame;
1575         nframes64_t current_rightmost;
1576         nframes64_t current_center;
1577         nframes64_t new_page_size;
1578         nframes64_t half_page_size;
1579         nframes64_t leftmost_after_zoom = 0;
1580         nframes64_t where;
1581         bool in_track_canvas;
1582         double nfpu;
1583         double l;
1584
1585         /* XXX this limit is also in ::set_frames_per_unit() */
1586
1587         if (frames_per_unit <= 2.0 && fpu <= frames_per_unit) {
1588                 return;
1589         }
1590
1591         nfpu = fpu;
1592
1593         new_page_size = (nframes64_t) floor (canvas_width * nfpu);
1594         half_page_size = new_page_size / 2;
1595
1596         switch (zoom_focus) {
1597         case ZoomFocusLeft:
1598                 leftmost_after_zoom = current_leftmost;
1599                 break;
1600
1601         case ZoomFocusRight:
1602                 current_rightmost = leftmost_frame + current_page;
1603                 if (current_rightmost < new_page_size) {
1604                         leftmost_after_zoom = 0;
1605                 } else {
1606                         leftmost_after_zoom = current_rightmost - new_page_size;
1607                 }
1608                 break;
1609
1610         case ZoomFocusCenter:
1611                 current_center = current_leftmost + (current_page/2);
1612                 if (current_center < half_page_size) {
1613                         leftmost_after_zoom = 0;
1614                 } else {
1615                         leftmost_after_zoom = current_center - half_page_size;
1616                 }
1617                 break;
1618
1619         case ZoomFocusPlayhead:
1620                 /* try to keep the playhead in the same place */
1621
1622                 where = playhead_cursor->current_frame;
1623
1624                 l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1625
1626                 if (l < 0) {
1627                         leftmost_after_zoom = 0;
1628                 } else if (l > max_frames) {
1629                         leftmost_after_zoom = max_frames - new_page_size;
1630                 } else {
1631                         leftmost_after_zoom = (nframes64_t) l;
1632                 }
1633                 break;
1634
1635         case ZoomFocusMouse:
1636                 /* try to keep the mouse over the same point in the display */
1637
1638                 if (!mouse_frame (where, in_track_canvas)) {
1639                         /* use playhead instead */
1640                         where = playhead_cursor->current_frame;
1641
1642                         if (where < half_page_size) {
1643                                 leftmost_after_zoom = 0;
1644                         } else {
1645                                 leftmost_after_zoom = where - half_page_size;
1646                         }
1647
1648                 } else {
1649
1650                         l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1651
1652                         if (l < 0) {
1653                                 leftmost_after_zoom = 0;
1654                         } else if (l > max_frames) {
1655                                 leftmost_after_zoom = max_frames - new_page_size;
1656                         } else {
1657                                 leftmost_after_zoom = (nframes64_t) l;
1658                         }
1659                 }
1660
1661                 break;
1662
1663         case ZoomFocusEdit:
1664                 /* try to keep the edit point in the same place */
1665                 where = get_preferred_edit_position ();
1666
1667                 if (where > 0) {
1668
1669                         double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
1670
1671                         if (l < 0) {
1672                                 leftmost_after_zoom = 0;
1673                         } else if (l > max_frames) {
1674                                 leftmost_after_zoom = max_frames - new_page_size;
1675                         } else {
1676                                 leftmost_after_zoom = (nframes64_t) l;
1677                         }
1678
1679                 } else {
1680                         /* edit point not defined */
1681                         return;
1682                 }
1683                 break;
1684
1685         }
1686
1687         // leftmost_after_zoom = min (leftmost_after_zoom, session->current_end_frame());
1688
1689         reposition_and_zoom (leftmost_after_zoom, nfpu);
1690 }
1691
1692 void
1693 Editor::temporal_zoom_region (bool both_axes)
1694 {
1695
1696         nframes64_t start = max_frames;
1697         nframes64_t end = 0;
1698         RegionSelection rs;
1699         set<TimeAxisView*> tracks;
1700         double top_y_position = DBL_MAX;
1701
1702         get_regions_for_action (rs);
1703
1704         if (rs.empty()) {
1705                 return;
1706         }
1707
1708         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
1709
1710                 if ((*i)->region()->position() < start) {
1711                         start = (*i)->region()->position();
1712                 }
1713
1714                 if ((*i)->region()->last_frame() + 1 > end) {
1715                         end = (*i)->region()->last_frame() + 1;
1716                 }
1717
1718                 tracks.insert (&((*i)->get_time_axis_view()));
1719
1720                 if ((*i)->get_time_axis_view().y_position < top_y_position) {
1721                         top_y_position = (*i)->get_time_axis_view().y_position;
1722                 }
1723         }
1724
1725         /* now comes an "interesting" hack ... make sure we leave a little space
1726            at each end of the editor so that the zoom doesn't fit the region
1727            precisely to the screen.
1728         */
1729
1730         GdkScreen* screen = gdk_screen_get_default ();
1731         gint pixwidth = gdk_screen_get_width (screen);
1732         gint mmwidth = gdk_screen_get_width_mm (screen);
1733         double pix_per_mm = (double) pixwidth/ (double) mmwidth;
1734         double one_centimeter_in_pixels = pix_per_mm * 10.0;
1735
1736         if ((start == 0 && end == 0) || end < start) {
1737                 return;
1738         }
1739
1740         nframes64_t range = end - start;
1741         double new_fpu = (double)range / (double)canvas_width;
1742         nframes64_t extra_samples = (nframes64_t) floor (one_centimeter_in_pixels * new_fpu);
1743
1744         if (start > extra_samples) {
1745                 start -= extra_samples;
1746         } else {
1747                 start = 0;
1748         }
1749
1750         if (max_frames - extra_samples > end) {
1751                 end += extra_samples;
1752         } else {
1753                 end = max_frames;
1754         }
1755
1756         if (both_axes) {
1757                 /* save visual state with track states included, and prevent
1758                    set_frames_per_unit() from doing it again.
1759                 */
1760                 undo_visual_stack.push_back (current_visual_state(true));
1761                 no_save_visual = true;
1762         }
1763
1764         temporal_zoom_by_frame (start, end, "zoom to region");
1765
1766         if (both_axes) {
1767                 uint32_t per_track_height = (uint32_t) floor ((canvas_height - 10.0) / tracks.size());
1768
1769                 /* set visible track heights appropriately */
1770
1771                 for (set<TimeAxisView*>::iterator t = tracks.begin(); t != tracks.end(); ++t) {
1772                         (*t)->set_height (per_track_height);
1773                 }
1774
1775                 /* hide irrelevant tracks */
1776
1777                 no_route_list_redisplay = true;
1778
1779                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1780                         if (find (tracks.begin(), tracks.end(), (*i)) == tracks.end()) {
1781                                 hide_track_in_display (**i, true);
1782                         }
1783                 }
1784
1785                 no_route_list_redisplay = false;
1786                 redisplay_route_list ();
1787
1788                 vertical_adjustment.set_value (std::max (top_y_position - 5.0, 0.0));
1789                 no_save_visual = false;
1790         }
1791
1792         zoomed_to_region = true;
1793         redo_visual_stack.push_back (current_visual_state());
1794 }
1795
1796 void
1797 Editor::toggle_zoom_region (bool both_axes)
1798 {
1799         if (zoomed_to_region) {
1800                 swap_visual_state ();
1801         } else {
1802                 temporal_zoom_region (both_axes);
1803         }
1804 }
1805
1806 void
1807 Editor::temporal_zoom_selection ()
1808 {
1809         if (!selection) return;
1810
1811         if (selection->time.empty()) {
1812                 return;
1813         }
1814
1815         nframes64_t start = selection->time[clicked_selection].start;
1816         nframes64_t end = selection->time[clicked_selection].end;
1817
1818         temporal_zoom_by_frame (start, end, "zoom to selection");
1819 }
1820
1821 void
1822 Editor::temporal_zoom_session ()
1823 {
1824         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::temporal_zoom_session));
1825
1826         if (session) {
1827                 temporal_zoom_by_frame (session->current_start_frame(), session->current_end_frame(), "zoom to session");
1828         }
1829 }
1830
1831 void
1832 Editor::temporal_zoom_by_frame (nframes64_t start, nframes64_t end, const string & op)
1833 {
1834         if (!session) return;
1835
1836         if ((start == 0 && end == 0) || end < start) {
1837                 return;
1838         }
1839
1840         nframes64_t range = end - start;
1841
1842         double new_fpu = (double)range / (double)canvas_width;
1843
1844         nframes64_t new_page = (nframes64_t) floor (canvas_width * new_fpu);
1845         nframes64_t middle = (nframes64_t) floor( (double)start + ((double)range / 2.0f ));
1846         nframes64_t new_leftmost = (nframes64_t) floor( (double)middle - ((double)new_page/2.0f));
1847
1848         if (new_leftmost > middle) {
1849                 new_leftmost = 0;
1850         }
1851
1852         reposition_and_zoom (new_leftmost, new_fpu);
1853 }
1854
1855 void
1856 Editor::temporal_zoom_to_frame (bool coarser, nframes64_t frame)
1857 {
1858         if (!session) return;
1859
1860         double range_before = frame - leftmost_frame;
1861         double new_fpu;
1862
1863         new_fpu = frames_per_unit;
1864
1865         if (coarser) {
1866                 new_fpu *= 1.61803399;
1867                 range_before *= 1.61803399;
1868         } else {
1869                 new_fpu = max(1.0,(new_fpu/1.61803399));
1870                 range_before /= 1.61803399;
1871         }
1872
1873         if (new_fpu == frames_per_unit) return;
1874
1875         nframes64_t new_leftmost = frame - (nframes64_t)range_before;
1876
1877         if (new_leftmost > frame) new_leftmost = 0;
1878
1879 //      begin_reversible_command (_("zoom to frame"));
1880 //      session->add_undo (bind (mem_fun(*this, &Editor::reposition_and_zoom), leftmost_frame, frames_per_unit));
1881 //      session->add_redo (bind (mem_fun(*this, &Editor::reposition_and_zoom), new_leftmost, new_fpu));
1882 //      commit_reversible_command ();
1883
1884         reposition_and_zoom (new_leftmost, new_fpu);
1885 }
1886
1887
1888 bool
1889 Editor::choose_new_marker_name(string &name) {
1890
1891         if (!Config->get_name_new_markers()) {
1892                 /* don't prompt user for a new name */
1893                 return true;
1894         }
1895
1896         ArdourPrompter dialog (true);
1897
1898         dialog.set_prompt (_("New Name:"));
1899
1900         WindowTitle title(Glib::get_application_name());
1901         title += _("Name New Location Marker");
1902
1903         dialog.set_title(title.get_string());
1904
1905         dialog.set_name ("MarkNameWindow");
1906         dialog.set_size_request (250, -1);
1907         dialog.set_position (Gtk::WIN_POS_MOUSE);
1908
1909         dialog.add_button (Stock::OK, RESPONSE_ACCEPT);
1910         dialog.set_initial_text (name);
1911
1912         dialog.show ();
1913
1914         switch (dialog.run ()) {
1915         case RESPONSE_ACCEPT:
1916                 break;
1917         default:
1918                 return false;
1919         }
1920
1921         dialog.get_result(name);
1922         return true;
1923
1924 }
1925
1926
1927 void
1928 Editor::add_location_from_selection ()
1929 {
1930         string rangename;
1931
1932         if (selection->time.empty()) {
1933                 return;
1934         }
1935
1936         if (session == 0 || clicked_trackview == 0) {
1937                 return;
1938         }
1939
1940         nframes64_t start = selection->time[clicked_selection].start;
1941         nframes64_t end = selection->time[clicked_selection].end;
1942
1943         session->locations()->next_available_name(rangename,"selection");
1944         Location *location = new Location (start, end, rangename, Location::IsRangeMarker);
1945
1946         session->begin_reversible_command (_("add marker"));
1947         XMLNode &before = session->locations()->get_state();
1948         session->locations()->add (location, true);
1949         XMLNode &after = session->locations()->get_state();
1950         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1951         session->commit_reversible_command ();
1952 }
1953
1954 void
1955 Editor::add_location_mark (nframes64_t where)
1956 {
1957         string markername;
1958
1959         select_new_marker = true;
1960
1961         session->locations()->next_available_name(markername,"mark");
1962         if (!choose_new_marker_name(markername)) {
1963                 return;
1964         }
1965         Location *location = new Location (where, where, markername, Location::IsMark);
1966         session->begin_reversible_command (_("add marker"));
1967         XMLNode &before = session->locations()->get_state();
1968         session->locations()->add (location, true);
1969         XMLNode &after = session->locations()->get_state();
1970         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
1971         session->commit_reversible_command ();
1972 }
1973
1974 void
1975 Editor::add_location_from_playhead_cursor ()
1976 {
1977         add_location_mark (session->audible_frame());
1978 }
1979
1980 void
1981 Editor::add_location_from_audio_region ()
1982 {
1983         RegionSelection rs;
1984
1985         get_regions_for_action (rs);
1986
1987         if (rs.empty()) {
1988                 return;
1989         }
1990
1991         RegionView* rv = *(rs.begin());
1992         boost::shared_ptr<Region> region = rv->region();
1993
1994         Location *location = new Location (region->position(), region->last_frame(), region->name(), Location::IsRangeMarker);
1995         session->begin_reversible_command (_("add marker"));
1996         XMLNode &before = session->locations()->get_state();
1997         session->locations()->add (location, true);
1998         XMLNode &after = session->locations()->get_state();
1999         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2000         session->commit_reversible_command ();
2001 }
2002
2003 void
2004 Editor::amplitude_zoom_step (bool in)
2005 {
2006         gdouble zoom = 1.0;
2007
2008         if (in) {
2009                 zoom *= 2.0;
2010         } else {
2011                 if (zoom > 2.0) {
2012                         zoom /= 2.0;
2013                 } else {
2014                         zoom = 1.0;
2015                 }
2016         }
2017
2018 #ifdef FIX_FOR_CANVAS
2019         /* XXX DO SOMETHING */
2020 #endif
2021 }
2022
2023
2024 /* DELETION */
2025
2026
2027 void
2028 Editor::delete_sample_forward ()
2029 {
2030 }
2031
2032 void
2033 Editor::delete_sample_backward ()
2034 {
2035 }
2036
2037 void
2038 Editor::delete_screen ()
2039 {
2040 }
2041
2042 /* SEARCH */
2043
2044 void
2045 Editor::search_backwards ()
2046 {
2047         /* what ? */
2048 }
2049
2050 void
2051 Editor::search_forwards ()
2052 {
2053         /* what ? */
2054 }
2055
2056 /* MARKS */
2057
2058 void
2059 Editor::jump_forward_to_mark ()
2060 {
2061         if (!session) {
2062                 return;
2063         }
2064
2065         Location *location = session->locations()->first_location_after (playhead_cursor->current_frame);
2066
2067         if (location) {
2068                 session->request_locate (location->start(), session->transport_rolling());
2069         } else {
2070                 session->request_locate (session->current_end_frame());
2071         }
2072 }
2073
2074 void
2075 Editor::jump_backward_to_mark ()
2076 {
2077         if (!session) {
2078                 return;
2079         }
2080
2081         Location *location = session->locations()->first_location_before (playhead_cursor->current_frame);
2082
2083         if (location) {
2084                 session->request_locate (location->start(), session->transport_rolling());
2085         } else {
2086                 session->goto_start ();
2087         }
2088 }
2089
2090 void
2091 Editor::set_mark ()
2092 {
2093         nframes64_t pos;
2094         float prefix;
2095         bool was_floating;
2096         string markername;
2097
2098         if (get_prefix (prefix, was_floating)) {
2099                 pos = session->audible_frame ();
2100         } else {
2101                 if (was_floating) {
2102                         pos = (nframes64_t) floor (prefix * session->frame_rate ());
2103                 } else {
2104                         pos = (nframes64_t) floor (prefix);
2105                 }
2106         }
2107
2108         session->locations()->next_available_name(markername,"mark");
2109         if (!choose_new_marker_name(markername)) {
2110                 return;
2111         }
2112         session->locations()->add (new Location (pos, 0, markername, Location::IsMark), true);
2113 }
2114
2115 void
2116 Editor::clear_markers ()
2117 {
2118         if (session) {
2119                 session->begin_reversible_command (_("clear markers"));
2120                 XMLNode &before = session->locations()->get_state();
2121                 session->locations()->clear_markers ();
2122                 XMLNode &after = session->locations()->get_state();
2123                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2124                 session->commit_reversible_command ();
2125         }
2126 }
2127
2128 void
2129 Editor::clear_ranges ()
2130 {
2131         if (session) {
2132                 session->begin_reversible_command (_("clear ranges"));
2133                 XMLNode &before = session->locations()->get_state();
2134
2135                 Location * looploc = session->locations()->auto_loop_location();
2136                 Location * punchloc = session->locations()->auto_punch_location();
2137
2138                 session->locations()->clear_ranges ();
2139                 // re-add these
2140                 if (looploc) session->locations()->add (looploc);
2141                 if (punchloc) session->locations()->add (punchloc);
2142
2143                 XMLNode &after = session->locations()->get_state();
2144                 session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2145                 session->commit_reversible_command ();
2146         }
2147 }
2148
2149 void
2150 Editor::clear_locations ()
2151 {
2152         session->begin_reversible_command (_("clear locations"));
2153         XMLNode &before = session->locations()->get_state();
2154         session->locations()->clear ();
2155         XMLNode &after = session->locations()->get_state();
2156         session->add_command(new MementoCommand<Locations>(*(session->locations()), &before, &after));
2157         session->commit_reversible_command ();
2158         session->locations()->clear ();
2159 }
2160
2161 void
2162 Editor::unhide_markers ()
2163 {
2164         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2165                 Location *l = (*i).first;
2166                 if (l->is_hidden() && l->is_mark()) {
2167                         l->set_hidden(false, this);
2168                 }
2169         }
2170 }
2171
2172 void
2173 Editor::unhide_ranges ()
2174 {
2175         for (LocationMarkerMap::iterator i = location_markers.begin(); i != location_markers.end(); ++i) {
2176                 Location *l = (*i).first;
2177                 if (l->is_hidden() && l->is_range_marker()) {
2178                         l->set_hidden(false, this);
2179                 }
2180         }
2181 }
2182
2183 /* INSERT/REPLACE */
2184
2185 void
2186 Editor::insert_region_list_drag (boost::shared_ptr<AudioRegion> region, int x, int y)
2187 {
2188         double wx, wy;
2189         double cx, cy;
2190         TimeAxisView *tv;
2191         nframes64_t where;
2192         AudioTimeAxisView *atv = 0;
2193         boost::shared_ptr<Playlist> playlist;
2194
2195         track_canvas->window_to_world (x, y, wx, wy);
2196         wx += horizontal_adjustment.get_value();
2197         wy += vertical_adjustment.get_value();
2198
2199         GdkEvent event;
2200         event.type = GDK_BUTTON_RELEASE;
2201         event.button.x = wx;
2202         event.button.y = wy;
2203
2204         where = event_frame (&event, &cx, &cy);
2205
2206         if (where < leftmost_frame || where > leftmost_frame + current_page_frames()) {
2207                 /* clearly outside canvas area */
2208                 return;
2209         }
2210
2211         if ((tv = trackview_by_y_position (cy)) == 0) {
2212                 return;
2213         }
2214
2215         if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) == 0) {
2216                 return;
2217         }
2218
2219         if ((playlist = atv->playlist()) == 0) {
2220                 return;
2221         }
2222
2223         snap_to (where);
2224
2225         begin_reversible_command (_("insert dragged region"));
2226         XMLNode &before = playlist->get_state();
2227         playlist->add_region (RegionFactory::create (region), where, 1.0);
2228         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2229         commit_reversible_command ();
2230 }
2231
2232 void
2233 Editor::insert_region_list_selection (float times)
2234 {
2235         RouteTimeAxisView *tv = 0;
2236         boost::shared_ptr<Playlist> playlist;
2237
2238         if (clicked_audio_trackview != 0) {
2239                 tv = clicked_audio_trackview;
2240         } else if (!selection->tracks.empty()) {
2241                 if ((tv = dynamic_cast<RouteTimeAxisView*>(selection->tracks.front())) == 0) {
2242                         return;
2243                 }
2244         } else if (entered_track != 0) {
2245                 if ((tv = dynamic_cast<RouteTimeAxisView*>(entered_track)) == 0) {
2246                         return;
2247                 }
2248         } else {
2249                 return;
2250         }
2251
2252         if ((playlist = tv->playlist()) == 0) {
2253                 return;
2254         }
2255
2256         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
2257
2258         if (selected->count_selected_rows() != 1) {
2259                 return;
2260         }
2261
2262         TreeView::Selection::ListHandle_Path rows = selected->get_selected_rows ();
2263
2264         /* only one row selected, so rows.begin() is it */
2265
2266         TreeIter iter;
2267
2268         if ((iter = region_list_model->get_iter (*rows.begin()))) {
2269
2270                 boost::shared_ptr<Region> region = (*iter)[region_list_columns.region];
2271
2272                 begin_reversible_command (_("insert region"));
2273                 XMLNode &before = playlist->get_state();
2274                 playlist->add_region ((RegionFactory::create (region)), get_preferred_edit_position(), times);
2275                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
2276                 commit_reversible_command ();
2277         }
2278 }
2279
2280 /* BUILT-IN EFFECTS */
2281
2282 void
2283 Editor::reverse_selection ()
2284 {
2285
2286 }
2287
2288 /* GAIN ENVELOPE EDITING */
2289
2290 void
2291 Editor::edit_envelope ()
2292 {
2293 }
2294
2295 /* PLAYBACK */
2296
2297 void
2298 Editor::transition_to_rolling (bool fwd)
2299 {
2300         if (!session) {
2301                 return;
2302         }
2303
2304         switch (Config->get_slave_source()) {
2305         case None:
2306         case JACK:
2307                 break;
2308         default:
2309                 /* transport controlled by the master */
2310                 return;
2311         }
2312
2313         if (session->is_auditioning()) {
2314                 session->cancel_audition ();
2315                 return;
2316         }
2317
2318         session->request_transport_speed (fwd ? 1.0f : -1.0f);
2319 }
2320
2321 void
2322 Editor::toggle_playback (bool with_abort)
2323 {
2324         if (!session) {
2325                 return;
2326         }
2327
2328         switch (Config->get_slave_source()) {
2329         case None:
2330         case JACK:
2331                 break;
2332         default:
2333                 /* transport controlled by the master */
2334                 return;
2335         }
2336
2337         if (session->is_auditioning()) {
2338                 session->cancel_audition ();
2339                 return;
2340         }
2341
2342         if (session->transport_rolling()) {
2343                 session->request_stop (with_abort);
2344                 if (session->get_play_loop()) {
2345                         session->request_play_loop (false);
2346                 }
2347         } else {
2348                 session->request_transport_speed (1.0f);
2349         }
2350 }
2351
2352 void
2353 Editor::play_from_start ()
2354 {
2355         session->request_locate (session->current_start_frame(), true);
2356 }
2357
2358 void
2359 Editor::play_from_edit_point ()
2360 {
2361         session->request_locate (get_preferred_edit_position(), true);
2362 }
2363
2364 void
2365 Editor::play_from_edit_point_and_return ()
2366 {
2367         nframes64_t start_frame;
2368         nframes64_t return_frame;
2369
2370         start_frame = get_preferred_edit_position (true);
2371
2372         if (session->transport_rolling()) {
2373                 session->request_locate (start_frame, false);
2374                 return;
2375         }
2376
2377         /* don't reset the return frame if its already set */
2378
2379         if ((return_frame = session->requested_return_frame()) < 0) {
2380                 return_frame = session->audible_frame();
2381         }
2382
2383         if (start_frame >= 0) {
2384                 session->request_roll_at_and_return (start_frame, return_frame);
2385         }
2386 }
2387
2388 void
2389 Editor::play_selection ()
2390 {
2391         if (selection->time.empty()) {
2392                 return;
2393         }
2394
2395         session->request_play_range (true);
2396 }
2397
2398 void
2399 Editor::loop_selected_region ()
2400 {
2401         RegionSelection rs;
2402
2403         get_regions_for_action (rs);
2404
2405         if (!rs.empty()) {
2406                 RegionView *rv = *(rs.begin());
2407                 Location* tll;
2408
2409                 if ((tll = transport_loop_location()) != 0)  {
2410
2411                         tll->set (rv->region()->position(), rv->region()->last_frame());
2412
2413                         // enable looping, reposition and start rolling
2414
2415                         session->request_play_loop (true);
2416                         session->request_locate (tll->start(), false);
2417                         session->request_transport_speed (1.0f);
2418                 }
2419         }
2420 }
2421
2422 void
2423 Editor::play_location (Location& location)
2424 {
2425         if (location.start() <= location.end()) {
2426                 return;
2427         }
2428
2429         session->request_bounded_roll (location.start(), location.end());
2430 }
2431
2432 void
2433 Editor::loop_location (Location& location)
2434 {
2435         if (location.start() <= location.end()) {
2436                 return;
2437         }
2438
2439         Location* tll;
2440
2441         if ((tll = transport_loop_location()) != 0) {
2442                 tll->set (location.start(), location.end());
2443
2444                 // enable looping, reposition and start rolling
2445                 session->request_play_loop (true);
2446                 session->request_locate (tll->start(), true);
2447         }
2448 }
2449
2450 void
2451 Editor::raise_region ()
2452 {
2453         selection->foreach_region (&Region::raise);
2454 }
2455
2456 void
2457 Editor::raise_region_to_top ()
2458 {
2459         selection->foreach_region (&Region::raise_to_top);
2460 }
2461
2462 void
2463 Editor::lower_region ()
2464 {
2465         selection->foreach_region (&Region::lower);
2466 }
2467
2468 void
2469 Editor::lower_region_to_bottom ()
2470 {
2471         selection->foreach_region (&Region::lower_to_bottom);
2472 }
2473
2474 void
2475 Editor::edit_region ()
2476 {
2477         if (clicked_regionview == 0) {
2478                 return;
2479         }
2480
2481         clicked_regionview->show_region_editor ();
2482 }
2483
2484 void
2485 Editor::rename_region()
2486 {
2487         RegionSelection rs;
2488
2489         get_regions_for_action (rs);
2490
2491         if (rs.empty()) {
2492                 return;
2493         }
2494
2495         WindowTitle title (Glib::get_application_name());
2496         title += _("Rename Region");
2497
2498         ArdourDialog d (*this, title.get_string(), true, false);
2499         Entry entry;
2500         Label label (_("New name:"));
2501         HBox hbox;
2502
2503         hbox.set_spacing (6);
2504         hbox.pack_start (label, false, false);
2505         hbox.pack_start (entry, true, true);
2506
2507         d.get_vbox()->set_border_width (12);
2508         d.get_vbox()->pack_start (hbox, false, false);
2509
2510         d.add_button(Gtk::Stock::OK, Gtk::RESPONSE_OK);
2511         d.add_button(Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
2512
2513         d.set_size_request (300, -1);
2514         d.set_position (Gtk::WIN_POS_MOUSE);
2515
2516         entry.set_text (rs.front()->region()->name());
2517         entry.select_region (0, -1);
2518
2519         entry.signal_activate().connect (bind (mem_fun (d, &Dialog::response), RESPONSE_OK));
2520
2521         d.show_all ();
2522
2523         entry.grab_focus();
2524
2525         int ret = d.run();
2526
2527         d.hide ();
2528
2529         if (ret == RESPONSE_OK) {
2530                 std::string str = entry.get_text();
2531                 strip_whitespace_edges (str);
2532                 if (!str.empty()) {
2533                         rs.front()->region()->set_name (str);
2534                         redisplay_regions ();
2535                 }
2536         }
2537 }
2538
2539 void
2540 Editor::audition_playlist_region_via_route (boost::shared_ptr<Region> region, Route& route)
2541 {
2542         if (session->is_auditioning()) {
2543                 session->cancel_audition ();
2544         }
2545
2546         // note: some potential for creativity here, because region doesn't
2547         // have to belong to the playlist that Route is handling
2548
2549         // bool was_soloed = route.soloed();
2550
2551         route.set_solo (true, this);
2552
2553         session->request_bounded_roll (region->position(), region->position() + region->length());
2554
2555         /* XXX how to unset the solo state ? */
2556 }
2557
2558 void
2559 Editor::play_edit_range ()
2560 {
2561         nframes64_t start, end;
2562
2563         if (get_edit_op_range (start, end)) {
2564                 session->request_bounded_roll (start, end);
2565         }
2566 }
2567
2568 void
2569 Editor::play_selected_region ()
2570 {
2571         nframes64_t start = max_frames;
2572         nframes64_t end = 0;
2573         RegionSelection rs;
2574
2575         get_regions_for_action (rs);
2576
2577         if (rs.empty()) {
2578                 return;
2579         }
2580
2581         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2582                 if ((*i)->region()->position() < start) {
2583                         start = (*i)->region()->position();
2584                 }
2585                 if ((*i)->region()->last_frame() + 1 > end) {
2586                         end = (*i)->region()->last_frame() + 1;
2587                 }
2588         }
2589
2590         session->request_stop ();
2591         session->request_bounded_roll (start, end);
2592 }
2593
2594 void
2595 Editor::audition_playlist_region_standalone (boost::shared_ptr<Region> region)
2596 {
2597         session->audition_region (region);
2598 }
2599
2600 void
2601 Editor::build_interthread_progress_window ()
2602 {
2603         interthread_progress_window = new ArdourDialog (X_("interthread progress"), true);
2604
2605         interthread_progress_bar.set_orientation (Gtk::PROGRESS_LEFT_TO_RIGHT);
2606
2607         interthread_progress_window->set_border_width (12);
2608         interthread_progress_window->get_vbox()->set_spacing (6);
2609
2610         interthread_progress_label.set_alignment (0.5, 0.5);
2611
2612         interthread_progress_window->get_vbox()->pack_start (interthread_progress_label, false, false);
2613         interthread_progress_window->get_vbox()->pack_start (interthread_progress_bar,false, false);
2614
2615         // GTK2FIX: this button needs a modifiable label
2616
2617         Button* b = interthread_progress_window->add_button (Stock::CANCEL, RESPONSE_CANCEL);
2618         b->signal_clicked().connect (mem_fun(*this, &Editor::interthread_cancel_clicked));
2619
2620         interthread_cancel_button.add (interthread_cancel_label);
2621
2622         interthread_progress_window->set_default_size (200, 100);
2623 }
2624
2625 void
2626 Editor::interthread_cancel_clicked ()
2627 {
2628         if (current_interthread_info) {
2629                 current_interthread_info->cancel = true;
2630         }
2631 }
2632
2633 void
2634 Editor::region_from_selection ()
2635 {
2636         if (clicked_trackview == 0) {
2637                 return;
2638         }
2639
2640         if (selection->time.empty()) {
2641                 return;
2642         }
2643
2644         nframes64_t start = selection->time[clicked_selection].start;
2645         nframes64_t end = selection->time[clicked_selection].end;
2646
2647         nframes64_t selection_cnt = end - start + 1;
2648
2649         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2650                 boost::shared_ptr<AudioRegion> current;
2651                 boost::shared_ptr<Region> current_r;
2652                 boost::shared_ptr<Playlist> pl;
2653
2654                 nframes64_t internal_start;
2655                 string new_name;
2656
2657                 if ((pl = (*i)->playlist()) == 0) {
2658                         continue;
2659                 }
2660
2661                 if ((current_r = pl->top_region_at (start)) == 0) {
2662                         continue;
2663                 }
2664
2665                 current = boost::dynamic_pointer_cast<AudioRegion> (current_r);
2666                 // FIXME: audio only
2667                 if (current != 0) {
2668                         internal_start = start - current->position();
2669                         session->region_name (new_name, current->name(), true);
2670                         boost::shared_ptr<Region> region (RegionFactory::create (current, internal_start, selection_cnt, new_name));
2671                 }
2672         }
2673 }
2674
2675 void
2676 Editor::create_region_from_selection (vector<boost::shared_ptr<AudioRegion> >& new_regions)
2677 {
2678         if (selection->time.empty() || selection->tracks.empty()) {
2679                 return;
2680         }
2681
2682         nframes64_t start = selection->time[clicked_selection].start;
2683         nframes64_t end = selection->time[clicked_selection].end;
2684
2685         sort_track_selection ();
2686
2687         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
2688
2689                 boost::shared_ptr<AudioRegion> current;
2690                 boost::shared_ptr<Region> current_r;
2691                 boost::shared_ptr<Playlist> playlist;
2692                 nframes64_t internal_start;
2693                 string new_name;
2694
2695                 if ((playlist = (*i)->playlist()) == 0) {
2696                         continue;
2697                 }
2698
2699                 if ((current_r = playlist->top_region_at(start)) == 0) {
2700                         continue;
2701                 }
2702
2703                 if ((current = boost::dynamic_pointer_cast<AudioRegion>(current_r)) == 0) {
2704                         continue;
2705                 }
2706
2707                 internal_start = start - current->position();
2708                 session->region_name (new_name, current->name(), true);
2709
2710                 new_regions.push_back (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (current, internal_start, end - start + 1, new_name)));
2711         }
2712 }
2713
2714 void
2715 Editor::split_multichannel_region ()
2716 {
2717         RegionSelection rs;
2718
2719         get_regions_for_action (rs);
2720
2721         if (rs.empty()) {
2722                 return;
2723         }
2724
2725         vector<boost::shared_ptr<AudioRegion> > v;
2726
2727         for (list<RegionView*>::iterator x = rs.begin(); x != rs.end(); ++x) {
2728
2729                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*x);
2730
2731                 if (!arv || arv->audio_region()->n_channels() < 2) {
2732                         continue;
2733                 }
2734
2735                 (arv)->audio_region()->separate_by_channel (*session, v);
2736         }
2737 }
2738
2739 void
2740 Editor::new_region_from_selection ()
2741 {
2742         region_from_selection ();
2743         cancel_selection ();
2744 }
2745
2746 static void
2747 add_if_covered (RegionView* rv, const AudioRange* ar, RegionSelection* rs)
2748 {
2749         switch (rv->region()->coverage (ar->start, ar->end - 1)) {
2750         case OverlapNone:
2751                 break;
2752         default:
2753                 rs->push_back (rv);
2754         }
2755 }
2756
2757 void
2758 Editor::separate_regions_between (const TimeSelection& ts)
2759 {
2760         bool in_command = false;
2761         boost::shared_ptr<Playlist> playlist;
2762         RegionSelection new_selection;
2763         TrackSelection tmptracks;
2764
2765         if (selection->tracks.empty()) {
2766
2767                 /* use tracks with selected regions */
2768
2769                 RegionSelection rs;
2770
2771                 get_regions_for_action (rs);
2772
2773                 for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
2774                         TimeAxisView* tv = &(*i)->get_time_axis_view();
2775
2776                         if (find (tmptracks.begin(), tmptracks.end(), tv) == tmptracks.end()) {
2777                                 tmptracks.push_back (tv);
2778                         }
2779                 }
2780
2781                 if (tmptracks.empty()) {
2782                         /* no regions selected: do nothing */
2783                         return;
2784                 }
2785
2786         } else {
2787
2788                 tmptracks = selection->tracks;
2789
2790         }
2791
2792         sort_track_selection (&tmptracks);
2793
2794         for (TrackSelection::iterator i = tmptracks.begin(); i != tmptracks.end(); ++i) {
2795
2796                 AudioTimeAxisView* atv;
2797
2798                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2799
2800                         if (atv->is_audio_track()) {
2801
2802                                 /* no edits to destructive tracks */
2803
2804                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2805                                         continue;
2806                                 }
2807
2808                                 if ((playlist = atv->playlist()) != 0) {
2809
2810
2811                                         XMLNode *before;
2812                                         bool got_some;
2813
2814                                         before = &(playlist->get_state());
2815                                         got_some = false;
2816
2817                                         /* XXX need to consider musical time selections here at some point */
2818
2819                                         double speed = atv->get_diskstream()->speed();
2820
2821
2822                                         for (list<AudioRange>::const_iterator t = ts.begin(); t != ts.end(); ++t) {
2823
2824                                                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
2825                                                 latest_regionviews.clear ();
2826
2827                                                 playlist->partition ((nframes64_t)((*t).start * speed), (nframes64_t)((*t).end * speed), true);
2828
2829                                                 c.disconnect ();
2830
2831                                                 if (!latest_regionviews.empty()) {
2832
2833                                                         got_some = true;
2834
2835                                                         atv->view()->foreach_regionview (bind (sigc::ptr_fun (add_if_covered), &(*t), &new_selection));
2836
2837                                                         if (!in_command) {
2838                                                                 begin_reversible_command (_("separate"));
2839                                                                 in_command = true;
2840                                                         }
2841
2842                                                         session->add_command(new MementoCommand<Playlist>(*playlist, before, &playlist->get_state()));
2843
2844                                                 }
2845                                         }
2846
2847                                         if (!got_some) {
2848                                                 delete before;
2849                                         }
2850                                 }
2851                         }
2852                 }
2853         }
2854
2855         if (in_command) {
2856                 selection->set (new_selection);
2857                 set_mouse_mode (MouseObject);
2858
2859                 commit_reversible_command ();
2860         }
2861 }
2862
2863 void
2864 Editor::separate_region_from_selection ()
2865 {
2866         /* preferentially use *all* ranges in the time selection if we're in range mode
2867            to allow discontiguous operation, since get_edit_op_range() currently
2868            returns a single range.
2869         */
2870
2871         if (mouse_mode == MouseRange && !selection->time.empty()) {
2872
2873                 separate_regions_between (selection->time);
2874
2875         } else {
2876
2877                 nframes64_t start;
2878                 nframes64_t end;
2879
2880                 if (get_edit_op_range (start, end)) {
2881
2882                         AudioRange ar (start, end, 1);
2883                         TimeSelection ts;
2884                         ts.push_back (ar);
2885
2886                         separate_regions_between (ts);
2887                 }
2888         }
2889 }
2890
2891 void
2892 Editor::separate_region_from_punch ()
2893 {
2894         Location* loc  = session->locations()->auto_punch_location();
2895         if (loc) {
2896                 separate_regions_using_location (*loc);
2897         }
2898 }
2899
2900 void
2901 Editor::separate_region_from_loop ()
2902 {
2903         Location* loc  = session->locations()->auto_loop_location();
2904         if (loc) {
2905                 separate_regions_using_location (*loc);
2906         }
2907 }
2908
2909 void
2910 Editor::separate_regions_using_location (Location& loc)
2911 {
2912         if (loc.is_mark()) {
2913                 return;
2914         }
2915
2916         AudioRange ar (loc.start(), loc.end(), 1);
2917         TimeSelection ts;
2918
2919         ts.push_back (ar);
2920
2921         separate_regions_between (ts);
2922 }
2923
2924 void
2925 Editor::crop_region_to_selection ()
2926 {
2927         if (!selection->time.empty()) {
2928
2929                 crop_region_to (selection->time.start(), selection->time.end_frame());
2930
2931         } else {
2932
2933                 nframes64_t start;
2934                 nframes64_t end;
2935
2936                 if (get_edit_op_range (start, end)) {
2937                         crop_region_to (start, end);
2938                 }
2939         }
2940
2941 }
2942
2943 void
2944 Editor::crop_region_to (nframes64_t start, nframes64_t end)
2945 {
2946         vector<boost::shared_ptr<Playlist> > playlists;
2947         boost::shared_ptr<Playlist> playlist;
2948         TrackSelection* ts;
2949
2950         if (selection->tracks.empty()) {
2951                 ts = &track_views;
2952         } else {
2953                 sort_track_selection ();
2954                 ts = &selection->tracks;
2955         }
2956
2957         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
2958
2959                 AudioTimeAxisView* atv;
2960
2961                 if ((atv = dynamic_cast<AudioTimeAxisView*> ((*i))) != 0) {
2962
2963                         if (atv->is_audio_track()) {
2964
2965                                 /* no edits to destructive tracks */
2966
2967                                 if (atv->audio_track()->audio_diskstream()->destructive()) {
2968                                         continue;
2969                                 }
2970
2971                                 if ((playlist = atv->playlist()) != 0) {
2972                                         playlists.push_back (playlist);
2973                                 }
2974                         }
2975                 }
2976         }
2977
2978         if (playlists.empty()) {
2979                 return;
2980         }
2981
2982         nframes64_t the_start;
2983         nframes64_t the_end;
2984         nframes64_t cnt;
2985
2986         begin_reversible_command (_("trim to selection"));
2987
2988         for (vector<boost::shared_ptr<Playlist> >::iterator i = playlists.begin(); i != playlists.end(); ++i) {
2989
2990                 boost::shared_ptr<Region> region;
2991
2992                 the_start = start;
2993
2994                 if ((region = (*i)->top_region_at(the_start)) == 0) {
2995                         continue;
2996                 }
2997
2998                 /* now adjust lengths to that we do the right thing
2999                    if the selection extends beyond the region
3000                 */
3001
3002                 the_start = max (the_start, (nframes64_t) region->position());
3003                 if (max_frames - the_start < region->length()) {
3004                         the_end = the_start + region->length() - 1;
3005                 } else {
3006                         the_end = max_frames;
3007                 }
3008                 the_end = min (end, the_end);
3009                 cnt = the_end - the_start + 1;
3010
3011                 XMLNode &before = (*i)->get_state();
3012                 region->trim_to (the_start, cnt, this);
3013                 XMLNode &after = (*i)->get_state();
3014                 session->add_command (new MementoCommand<Playlist>(*(*i), &before, &after));
3015         }
3016
3017         commit_reversible_command ();
3018 }
3019
3020 void
3021 Editor::region_fill_track ()
3022 {
3023         nframes64_t end;
3024         RegionSelection rs;
3025
3026         get_regions_for_action (rs);
3027
3028         if (!session || rs.empty()) {
3029                 return;
3030         }
3031
3032         end = session->current_end_frame ();
3033
3034         begin_reversible_command (_("region fill"));
3035
3036         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3037
3038                 boost::shared_ptr<Region> region ((*i)->region());
3039
3040                 // FIXME
3041                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(region);
3042                 if (!ar)
3043                         continue;
3044
3045                 boost::shared_ptr<Playlist> pl = region->playlist();
3046
3047                 if (end <= region->last_frame()) {
3048                         return;
3049                 }
3050
3051                 double times = (double) (end - region->last_frame()) / (double) region->length();
3052
3053                 if (times == 0) {
3054                         return;
3055                 }
3056
3057                 XMLNode &before = pl->get_state();
3058                 pl->add_region (RegionFactory::create (ar), ar->last_frame(), times);
3059                 session->add_command (new MementoCommand<Playlist>(*pl, &before, &pl->get_state()));
3060         }
3061
3062         commit_reversible_command ();
3063 }
3064
3065 void
3066 Editor::region_fill_selection ()
3067 {
3068         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3069                 return;
3070         }
3071
3072         if (selection->time.empty()) {
3073                 return;
3074         }
3075
3076
3077         Glib::RefPtr<TreeSelection> selected = region_list_display.get_selection();
3078
3079         if (selected->count_selected_rows() != 1) {
3080                 return;
3081         }
3082
3083         TreeModel::iterator i = region_list_display.get_selection()->get_selected();
3084         boost::shared_ptr<Region> region = (*i)[region_list_columns.region];
3085
3086         nframes64_t start = selection->time[clicked_selection].start;
3087         nframes64_t end = selection->time[clicked_selection].end;
3088
3089         boost::shared_ptr<Playlist> playlist;
3090
3091         if (selection->tracks.empty()) {
3092                 return;
3093         }
3094
3095         nframes64_t selection_length = end - start;
3096         float times = (float)selection_length / region->length();
3097
3098         begin_reversible_command (_("fill selection"));
3099
3100         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3101
3102                 if ((playlist = (*i)->playlist()) == 0) {
3103                         continue;
3104                 }
3105
3106                 XMLNode &before = playlist->get_state();
3107                 playlist->add_region (RegionFactory::create (region), start, times);
3108                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
3109         }
3110
3111         commit_reversible_command ();
3112 }
3113
3114 void
3115 Editor::set_region_sync_from_edit_point ()
3116 {
3117         nframes64_t where = get_preferred_edit_position ();
3118         RegionSelection rs;
3119         get_regions_for_action (rs);
3120         set_sync_point (where, rs);
3121 }
3122
3123 void
3124 Editor::set_sync_point (nframes64_t where, const RegionSelection& rs)
3125 {
3126         bool in_command = false;
3127
3128         for (RegionSelection::const_iterator r = rs.begin(); r != rs.end(); ++r) {
3129
3130                 if (!(*r)->region()->covers (where)) {
3131                         continue;
3132                 }
3133
3134                 boost::shared_ptr<Region> region ((*r)->region());
3135
3136                 if (!in_command) {
3137                         begin_reversible_command (_("set sync point"));
3138                         in_command = true;
3139                 }
3140
3141                 XMLNode &before = region->playlist()->get_state();
3142                 region->set_sync_position (get_preferred_edit_position());
3143                 XMLNode &after = region->playlist()->get_state();
3144                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3145         }
3146
3147         if (in_command) {
3148                 commit_reversible_command ();
3149         }
3150 }
3151
3152 void
3153 Editor::remove_region_sync ()
3154 {
3155         if (clicked_regionview) {
3156                 boost::shared_ptr<Region> region (clicked_regionview->region());
3157                 begin_reversible_command (_("remove sync"));
3158                 XMLNode &before = region->playlist()->get_state();
3159                 region->clear_sync_position ();
3160                 XMLNode &after = region->playlist()->get_state();
3161                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3162                 commit_reversible_command ();
3163         }
3164 }
3165
3166 void
3167 Editor::naturalize ()
3168 {
3169         RegionSelection rs;
3170
3171         get_regions_for_action (rs);
3172
3173         if (rs.empty()) {
3174                 return;
3175         }
3176
3177         begin_reversible_command (_("naturalize"));
3178         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
3179                 XMLNode &before = (*i)->region()->get_state();
3180                 (*i)->region()->move_to_natural_position (this);
3181                 XMLNode &after = (*i)->region()->get_state();
3182                 session->add_command (new MementoCommand<Region>(*((*i)->region().get()), &before, &after));
3183         }
3184         commit_reversible_command ();
3185 }
3186
3187 void
3188 Editor::align (RegionPoint what)
3189 {
3190         RegionSelection rs;
3191
3192         get_regions_for_action (rs);
3193         nframes64_t where = get_preferred_edit_position();
3194
3195         if (!rs.empty()) {
3196                 align_selection (what, where, rs);
3197         } else {
3198
3199                 RegionSelection rs;
3200                 get_regions_at (rs, where, selection->tracks);
3201                 align_selection (what, where, rs);
3202         }
3203 }
3204
3205 void
3206 Editor::align_relative (RegionPoint what)
3207 {
3208         nframes64_t where = get_preferred_edit_position();
3209         RegionSelection rs;
3210
3211         get_regions_for_action (rs);
3212
3213         if (!rs.empty()) {
3214                 align_selection_relative (what, where, rs);
3215         }
3216 }
3217
3218 struct RegionSortByTime {
3219     bool operator() (const AudioRegionView* a, const AudioRegionView* b) {
3220             return a->region()->position() < b->region()->position();
3221     }
3222 };
3223
3224 void
3225 Editor::align_selection_relative (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3226 {
3227         if (rs.empty()) {
3228                 return;
3229         }
3230
3231         nframes64_t distance;
3232         nframes64_t pos = 0;
3233         int dir;
3234
3235         list<RegionView*> sorted;
3236         rs.by_position (sorted);
3237         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3238
3239         switch (point) {
3240         case Start:
3241                 pos = position;
3242                 if (position > r->position()) {
3243                         distance = position - r->position();
3244                         dir = 1;
3245                 } else {
3246                         distance = r->position() - position;
3247                         dir = -1;
3248                 }
3249                 break;
3250
3251         case End:
3252                 if (position > r->last_frame()) {
3253                         distance = position - r->last_frame();
3254                         pos = r->position() + distance;
3255                         dir = 1;
3256                 } else {
3257                         distance = r->last_frame() - position;
3258                         pos = r->position() - distance;
3259                         dir = -1;
3260                 }
3261                 break;
3262
3263         case SyncPoint:
3264                 pos = r->adjust_to_sync (position);
3265                 if (pos > r->position()) {
3266                         distance = pos - r->position();
3267                         dir = 1;
3268                 } else {
3269                         distance = r->position() - pos;
3270                         dir = -1;
3271                 }
3272                 break;
3273         }
3274
3275         if (pos == r->position()) {
3276                 return;
3277         }
3278
3279         begin_reversible_command (_("align selection (relative)"));
3280
3281         /* move first one specially */
3282
3283         XMLNode &before = r->playlist()->get_state();
3284         r->set_position (pos, this);
3285         XMLNode &after = r->playlist()->get_state();
3286         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3287
3288         /* move rest by the same amount */
3289
3290         sorted.pop_front();
3291
3292         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3293
3294                 boost::shared_ptr<Region> region ((*i)->region());
3295
3296                 XMLNode &before = region->playlist()->get_state();
3297
3298                 if (dir > 0) {
3299                         region->set_position (region->position() + distance, this);
3300                 } else {
3301                         region->set_position (region->position() - distance, this);
3302                 }
3303
3304                 XMLNode &after = region->playlist()->get_state();
3305                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3306
3307         }
3308
3309         commit_reversible_command ();
3310 }
3311
3312 void
3313 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3314 {
3315         if (rs.empty()) {
3316                 return;
3317         }
3318
3319         begin_reversible_command (_("align selection"));
3320
3321         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3322                 align_region_internal ((*i)->region(), point, position);
3323         }
3324
3325         commit_reversible_command ();
3326 }
3327
3328 void
3329 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3330 {
3331         begin_reversible_command (_("align region"));
3332         align_region_internal (region, point, position);
3333         commit_reversible_command ();
3334 }
3335
3336 void
3337 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3338 {
3339         XMLNode &before = region->playlist()->get_state();
3340
3341         switch (point) {
3342         case SyncPoint:
3343                 region->set_position (region->adjust_to_sync (position), this);
3344                 break;
3345
3346         case End:
3347                 if (position > region->length()) {
3348                         region->set_position (position - region->length(), this);
3349                 }
3350                 break;
3351
3352         case Start:
3353                 region->set_position (position, this);
3354                 break;
3355         }
3356
3357         XMLNode &after = region->playlist()->get_state();
3358         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3359 }
3360
3361 void
3362 Editor::trim_region_to_loop ()
3363 {
3364         Location* loc = session->locations()->auto_loop_location();
3365         if (!loc) {
3366                 return;
3367         }
3368         trim_region_to_location (*loc, _("trim to loop"));
3369 }
3370
3371 void
3372 Editor::trim_region_to_punch ()
3373 {
3374         Location* loc = session->locations()->auto_punch_location();
3375         if (!loc) {
3376                 return;
3377         }
3378         trim_region_to_location (*loc, _("trim to punch"));
3379 }
3380
3381 void
3382 Editor::trim_region_to_location (const Location& loc, const char* str)
3383 {
3384         RegionSelection rs;
3385
3386         get_regions_for_action (rs);
3387
3388         begin_reversible_command (str);
3389
3390         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3391                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3392
3393                 if (!arv) {
3394                         continue;
3395                 }
3396
3397                 /* require region to span proposed trim */
3398
3399                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3400                 case OverlapInternal:
3401                         break;
3402                 default:
3403                         continue;
3404                 }
3405
3406                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3407
3408                 if (!atav) {
3409                         return;
3410                 }
3411
3412                 float speed = 1.0;
3413                 nframes64_t start;
3414                 nframes64_t end;
3415
3416                 if (atav->get_diskstream() != 0) {
3417                         speed = atav->get_diskstream()->speed();
3418                 }
3419
3420                 start = session_frame_to_track_frame (loc.start(), speed);
3421                 end = session_frame_to_track_frame (loc.end(), speed);
3422
3423                 XMLNode &before = arv->region()->playlist()->get_state();
3424                 arv->region()->trim_to (start, (end - start), this);
3425                 XMLNode &after = arv->region()->playlist()->get_state();
3426                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3427         }
3428
3429         commit_reversible_command ();
3430 }
3431
3432 void
3433 Editor::trim_region_to_edit_point ()
3434 {
3435         RegionSelection rs;
3436
3437         get_regions_for_action (rs);
3438
3439         nframes64_t where = get_preferred_edit_position();
3440
3441         begin_reversible_command (_("trim region start to edit point"));
3442
3443         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3444                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3445
3446                 if (!arv) {
3447                         continue;
3448                 }
3449
3450                 /* require region to cover trim */
3451
3452                 if (!arv->region()->covers (where)) {
3453                         continue;
3454                 }
3455
3456                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3457
3458                 if (!atav) {
3459                         return;
3460                 }
3461
3462                 float speed = 1.0;
3463
3464                 if (atav->get_diskstream() != 0) {
3465                         speed = atav->get_diskstream()->speed();
3466                 }
3467
3468                 XMLNode &before = arv->region()->playlist()->get_state();
3469                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3470                 XMLNode &after = arv->region()->playlist()->get_state();
3471                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3472         }
3473
3474         commit_reversible_command ();
3475 }
3476
3477 void
3478 Editor::trim_region_from_edit_point ()
3479 {
3480         RegionSelection rs;
3481
3482         get_regions_for_action (rs);
3483
3484         nframes64_t where = get_preferred_edit_position();
3485
3486         begin_reversible_command (_("trim region end to edit point"));
3487
3488         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3489                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3490
3491                 if (!arv) {
3492                         continue;
3493                 }
3494
3495                 /* require region to cover trim */
3496
3497                 if (!arv->region()->covers (where)) {
3498                         continue;
3499                 }
3500
3501                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3502
3503                 if (!atav) {
3504                         return;
3505                 }
3506
3507                 float speed = 1.0;
3508
3509                 if (atav->get_diskstream() != 0) {
3510                         speed = atav->get_diskstream()->speed();
3511                 }
3512
3513                 XMLNode &before = arv->region()->playlist()->get_state();
3514                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3515                 XMLNode &after = arv->region()->playlist()->get_state();
3516                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3517         }
3518
3519         commit_reversible_command ();
3520 }
3521
3522 void
3523 Editor::unfreeze_route ()
3524 {
3525         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3526                 return;
3527         }
3528
3529         clicked_audio_trackview->audio_track()->unfreeze ();
3530 }
3531
3532 void*
3533 Editor::_freeze_thread (void* arg)
3534 {
3535         PBD::ThreadCreated (pthread_self(), X_("Freeze"));
3536         return static_cast<Editor*>(arg)->freeze_thread ();
3537 }
3538
3539 void*
3540 Editor::freeze_thread ()
3541 {
3542         clicked_audio_trackview->audio_track()->freeze (*current_interthread_info);
3543         return 0;
3544 }
3545
3546 gint
3547 Editor::freeze_progress_timeout (void *arg)
3548 {
3549         interthread_progress_bar.set_fraction (current_interthread_info->progress/100);
3550         return !(current_interthread_info->done || current_interthread_info->cancel);
3551 }
3552
3553 void
3554 Editor::freeze_route ()
3555 {
3556         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3557                 return;
3558         }
3559
3560         InterThreadInfo itt;
3561
3562         if (interthread_progress_window == 0) {
3563                 build_interthread_progress_window ();
3564         }
3565
3566         WindowTitle title(Glib::get_application_name());
3567         title += _("Freeze");
3568         interthread_progress_window->set_title (title.get_string());
3569         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3570         interthread_progress_window->show_all ();
3571         interthread_progress_bar.set_fraction (0.0f);
3572         interthread_progress_label.set_text ("");
3573         interthread_cancel_label.set_text (_("Cancel Freeze"));
3574         current_interthread_info = &itt;
3575
3576         interthread_progress_connection =
3577           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3578
3579         itt.done = false;
3580         itt.cancel = false;
3581         itt.progress = 0.0f;
3582
3583         pthread_attr_t attr;
3584         pthread_attr_init(&attr);
3585         pthread_attr_setstacksize(&attr, 500000);
3586
3587         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3588
3589         pthread_attr_destroy(&attr);
3590
3591         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3592
3593         while (!itt.done && !itt.cancel) {
3594                 gtk_main_iteration ();
3595         }
3596
3597         interthread_progress_connection.disconnect ();
3598         interthread_progress_window->hide_all ();
3599         current_interthread_info = 0;
3600         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3601 }
3602
3603 void
3604 Editor::bounce_range_selection ()
3605 {
3606         if (selection->time.empty()) {
3607                 return;
3608         }
3609
3610         TrackSelection views = selection->tracks;
3611
3612         nframes64_t start = selection->time[clicked_selection].start;
3613         nframes64_t end = selection->time[clicked_selection].end;
3614         nframes64_t cnt = end - start + 1;
3615
3616         begin_reversible_command (_("bounce range"));
3617
3618         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3619
3620                 AudioTimeAxisView* atv;
3621
3622                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) == 0) {
3623                         continue;
3624                 }
3625
3626                 boost::shared_ptr<Playlist> playlist;
3627
3628                 if ((playlist = atv->playlist()) == 0) {
3629                         return;
3630                 }
3631
3632                 InterThreadInfo itt;
3633
3634                 itt.done = false;
3635                 itt.cancel = false;
3636                 itt.progress = false;
3637
3638                 XMLNode &before = playlist->get_state();
3639                 atv->audio_track()->bounce_range (start, cnt, itt);
3640                 XMLNode &after = playlist->get_state();
3641                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3642         }
3643
3644         commit_reversible_command ();
3645 }
3646
3647 void
3648 Editor::cut ()
3649 {
3650         cut_copy (Cut);
3651 }
3652
3653 void
3654 Editor::copy ()
3655 {
3656         cut_copy (Copy);
3657 }
3658
3659 void
3660 Editor::cut_copy (CutCopyOp op)
3661 {
3662         /* only cancel selection if cut/copy is successful.*/
3663
3664         string opname;
3665
3666         switch (op) {
3667         case Cut:
3668                 opname = _("cut");
3669                 break;
3670         case Copy:
3671                 opname = _("copy");
3672                 break;
3673         case Clear:
3674                 opname = _("clear");
3675                 break;
3676         }
3677
3678         /* if we're deleting something, and the mouse is still pressed,
3679            the thing we started a drag for will be gone when we release
3680            the mouse button(s). avoid this. see part 2 at the end of
3681            this function.
3682         */
3683
3684         if (op == Cut || op == Clear) {
3685                 if (drag_info.item) {
3686                         drag_info.item->ungrab (0);
3687                         drag_info.item = 0;
3688                 }
3689         }
3690
3691         cut_buffer->clear ();
3692
3693         if (entered_marker) {
3694
3695                 /* cut/delete op while pointing at a marker */
3696
3697                 bool ignored;
3698                 Location* loc = find_location_from_marker (entered_marker, ignored);
3699
3700                 if (session && loc) {
3701                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3702                 }
3703
3704                 break_drag ();
3705
3706                 return;
3707         }
3708
3709         RegionSelection rs;
3710
3711         /* we only want to cut regions if some are selected */
3712
3713         if (!selection->regions.empty()) {
3714                 get_regions_for_action (rs);
3715         }
3716
3717         switch (current_mouse_mode()) {
3718         case MouseObject:
3719                 if (!rs.empty() || !selection->points.empty()) {
3720
3721                         begin_reversible_command (opname + _(" objects"));
3722
3723                         if (!rs.empty()) {
3724                                 cut_copy_regions (op, rs);
3725
3726                                 if (op == Cut) {
3727                                         selection->clear_regions ();
3728                                 }
3729                         }
3730
3731                         if (!selection->points.empty()) {
3732                                 cut_copy_points (op);
3733
3734                                 if (op == Cut) {
3735                                         selection->clear_points ();
3736                                 }
3737                         }
3738
3739                         commit_reversible_command ();
3740                         break; // terminate case statement here
3741                 }
3742                 if (!selection->time.empty()) {
3743                         /* don't cause suprises */
3744                         break;
3745                 }
3746                 // fall thru if there was nothing selected
3747
3748         case MouseRange:
3749                 if (selection->time.empty()) {
3750                         nframes64_t start, end;
3751                         if (!get_edit_op_range (start, end)) {
3752                                 return;
3753                         }
3754                         selection->set ((TimeAxisView*) 0, start, end);
3755                 }
3756
3757                 begin_reversible_command (opname + _(" range"));
3758                 cut_copy_ranges (op);
3759                 commit_reversible_command ();
3760
3761                 if (op == Cut) {
3762                         selection->clear_time ();
3763                 }
3764
3765                 break;
3766
3767         default:
3768                 break;
3769         }
3770
3771
3772         if (op == Cut || op == Clear) {
3773                 break_drag ();
3774         }
3775 }
3776
3777 void
3778 Editor::cut_copy_points (CutCopyOp op)
3779 {
3780         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3781
3782                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3783
3784                 if (atv) {
3785                         atv->cut_copy_clear_objects (selection->points, op);
3786                 }
3787         }
3788 }
3789
3790 struct PlaylistState {
3791     boost::shared_ptr<Playlist> playlist;
3792     XMLNode*  before;
3793 };
3794
3795 struct lt_playlist {
3796     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3797             return a.playlist < b.playlist;
3798     }
3799 };
3800
3801 struct PlaylistMapping {
3802     TimeAxisView* tv;
3803     boost::shared_ptr<AudioPlaylist> pl;
3804
3805     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3806 };
3807
3808 void
3809 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3810 {
3811         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3812            a map when we want ordered access to both elements. i think.
3813         */
3814
3815         vector<PlaylistMapping> pmap;
3816
3817         nframes64_t first_position = max_frames;
3818
3819         set<PlaylistState, lt_playlist> freezelist;
3820         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3821
3822         /* get ordering correct before we cut/copy */
3823
3824         rs.sort_by_position_and_track ();
3825
3826         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3827
3828                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
3829
3830                 if (op == Cut || op == Clear) {
3831                         boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3832
3833                         if (pl) {
3834
3835                                 PlaylistState before;
3836                                 before.playlist = pl;
3837                                 before.before = &pl->get_state();
3838
3839                                 insert_result = freezelist.insert (before);
3840
3841                                 if (insert_result.second) {
3842                                         pl->freeze ();
3843                                 }
3844                         }
3845                 }
3846
3847                 TimeAxisView* tv = &(*x)->get_trackview();
3848                 vector<PlaylistMapping>::iterator z;
3849
3850                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3851                         if ((*z).tv == tv) {
3852                                 break;
3853                         }
3854                 }
3855
3856                 if (z == pmap.end()) {
3857                         pmap.push_back (PlaylistMapping (tv));
3858                 }
3859         }
3860
3861         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3862
3863                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3864
3865                 if (!pl) {
3866                         /* impossible, but this handles it for the future */
3867                         continue;
3868                 }
3869
3870                 TimeAxisView& tv = (*x)->get_trackview();
3871                 boost::shared_ptr<AudioPlaylist> npl;
3872                 RegionSelection::iterator tmp;
3873
3874                 tmp = x;
3875                 ++tmp;
3876
3877                 vector<PlaylistMapping>::iterator z;
3878
3879                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3880                         if ((*z).tv == &tv) {
3881                                 break;
3882                         }
3883                 }
3884
3885                 assert (z != pmap.end());
3886
3887                 if (!(*z).pl) {
3888                         npl = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (*session, "cutlist", true));
3889                         npl->freeze();
3890                         (*z).pl = npl;
3891                 } else {
3892                         npl = (*z).pl;
3893                 }
3894
3895                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>((*x)->region());
3896                 boost::shared_ptr<Region> _xx;
3897
3898                 switch (op) {
3899                 case Cut:
3900                         if (!ar) break;
3901
3902                         _xx = RegionFactory::create ((*x)->region());
3903                         npl->add_region (_xx, (*x)->region()->position() - first_position);
3904                         pl->remove_region (((*x)->region()));
3905                         break;
3906
3907                 case Copy:
3908                         if (!ar) break;
3909
3910                         /* copy region before adding, so we're not putting same object into two different playlists */
3911                         npl->add_region (RegionFactory::create ((*x)->region()), (*x)->region()->position() - first_position);
3912                         break;
3913
3914                 case Clear:
3915                         pl->remove_region (((*x)->region()));
3916                         break;
3917                 }
3918
3919                 x = tmp;
3920         }
3921
3922         list<boost::shared_ptr<Playlist> > foo;
3923
3924         /* the pmap is in the same order as the tracks in which selected regions occured */
3925
3926         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3927                 (*i).pl->thaw();
3928                 foo.push_back ((*i).pl);
3929         }
3930
3931
3932         if (!foo.empty()) {
3933                 cut_buffer->set (foo);
3934         }
3935
3936         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3937                 (*pl).playlist->thaw ();
3938                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
3939         }
3940 }
3941
3942 void
3943 Editor::cut_copy_ranges (CutCopyOp op)
3944 {
3945         TrackSelection* ts;
3946         TrackSelection entered;
3947
3948         if (selection->tracks.empty()) {
3949                 if (!entered_track) {
3950                         return;
3951                 }
3952                 entered.push_back (entered_track);
3953                 ts = &entered;
3954         } else {
3955                 ts = &selection->tracks;
3956         }
3957
3958         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3959                 (*i)->cut_copy_clear (*selection, op);
3960         }
3961 }
3962
3963 void
3964 Editor::paste (float times)
3965 {
3966         paste_internal (get_preferred_edit_position(), times);
3967 }
3968
3969 void
3970 Editor::mouse_paste ()
3971 {
3972         nframes64_t where;
3973         bool ignored;
3974
3975         if (!mouse_frame (where, ignored)) {
3976                 return;
3977         }
3978
3979         snap_to (where);
3980         paste_internal (where, 1);
3981 }
3982
3983 void
3984 Editor::paste_internal (nframes64_t position, float times)
3985 {
3986         bool commit = false;
3987
3988         if (cut_buffer->empty()) {
3989                 return;
3990         }
3991
3992         if (position == max_frames) {
3993                 position = get_preferred_edit_position();
3994         }
3995
3996         begin_reversible_command (_("paste"));
3997
3998         TrackSelection ts;
3999         TrackSelection::iterator i;
4000         size_t nth;
4001
4002         /* get everything in the correct order */
4003
4004
4005         if (!selection->tracks.empty()) {
4006                 sort_track_selection ();
4007                 ts = selection->tracks;
4008         } else if (entered_track) {
4009                 ts.push_back (entered_track);
4010         }
4011
4012         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4013
4014                 /* undo/redo is handled by individual tracks */
4015
4016                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
4017                         commit = true;
4018                 }
4019         }
4020
4021         if (commit) {
4022                 commit_reversible_command ();
4023         }
4024 }
4025
4026 void
4027 Editor::paste_named_selection (float times)
4028 {
4029         TrackSelection::iterator t;
4030
4031         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4032
4033         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4034                 return;
4035         }
4036
4037         TreeModel::iterator i = selected->get_selected();
4038         NamedSelection* ns = (*i)[named_selection_columns.selection];
4039
4040         list<boost::shared_ptr<Playlist> >::iterator chunk;
4041         list<boost::shared_ptr<Playlist> >::iterator tmp;
4042
4043         chunk = ns->playlists.begin();
4044
4045         begin_reversible_command (_("paste chunk"));
4046
4047         sort_track_selection ();
4048
4049         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4050
4051                 AudioTimeAxisView* atv;
4052                 boost::shared_ptr<Playlist> pl;
4053                 boost::shared_ptr<AudioPlaylist> apl;
4054
4055                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*t)) == 0) {
4056                         continue;
4057                 }
4058
4059                 if ((pl = atv->playlist()) == 0) {
4060                         continue;
4061                 }
4062
4063                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4064                         continue;
4065                 }
4066
4067                 tmp = chunk;
4068                 ++tmp;
4069
4070                 XMLNode &before = apl->get_state();
4071                 apl->paste (*chunk, get_preferred_edit_position(), times);
4072                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4073
4074                 if (tmp != ns->playlists.end()) {
4075                         chunk = tmp;
4076                 }
4077         }
4078
4079         commit_reversible_command();
4080 }
4081
4082 void
4083 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4084 {
4085         boost::shared_ptr<Playlist> playlist;
4086         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4087         RegionSelection foo;
4088
4089         begin_reversible_command (_("duplicate region"));
4090
4091         selection->clear_regions ();
4092
4093         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4094
4095                 boost::shared_ptr<Region> r ((*i)->region());
4096
4097                 TimeAxisView& tv = (*i)->get_time_axis_view();
4098                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (&tv);
4099
4100                 latest_regionviews.clear ();
4101                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4102
4103                 playlist = (*i)->region()->playlist();
4104                 XMLNode &before = playlist->get_state();
4105                 playlist->duplicate (r, r->last_frame() + 1, times);
4106                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4107
4108                 c.disconnect ();
4109
4110                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4111         }
4112
4113         commit_reversible_command ();
4114
4115         if (!foo.empty()) {
4116                 selection->set (foo);
4117         }
4118 }
4119
4120 void
4121 Editor::duplicate_selection (float times)
4122 {
4123         if (selection->time.empty() || selection->tracks.empty()) {
4124                 return;
4125         }
4126
4127         boost::shared_ptr<Playlist> playlist;
4128         vector<boost::shared_ptr<AudioRegion> > new_regions;
4129         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
4130
4131         create_region_from_selection (new_regions);
4132
4133         if (new_regions.empty()) {
4134                 return;
4135         }
4136
4137         begin_reversible_command (_("duplicate selection"));
4138
4139         ri = new_regions.begin();
4140
4141         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4142                 if ((playlist = (*i)->playlist()) == 0) {
4143                         continue;
4144                 }
4145                 XMLNode &before = playlist->get_state();
4146                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4147                 XMLNode &after = playlist->get_state();
4148                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4149
4150                 ++ri;
4151                 if (ri == new_regions.end()) {
4152                         --ri;
4153                 }
4154         }
4155
4156         commit_reversible_command ();
4157 }
4158
4159 void
4160 Editor::reset_point_selection ()
4161 {
4162         /* reset all selected points to the relevant default value */
4163
4164         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4165
4166                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4167
4168                 if (atv) {
4169                         atv->reset_objects (selection->points);
4170                 }
4171         }
4172 }
4173
4174 void
4175 Editor::center_playhead ()
4176 {
4177         float page = canvas_width * frames_per_unit;
4178         center_screen_internal (playhead_cursor->current_frame, page);
4179 }
4180
4181 void
4182 Editor::center_edit_point ()
4183 {
4184         float page = canvas_width * frames_per_unit;
4185         center_screen_internal (get_preferred_edit_position(), page);
4186 }
4187
4188 void
4189 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4190 {
4191         begin_reversible_command (_("clear playlist"));
4192         XMLNode &before = playlist->get_state();
4193         playlist->clear ();
4194         XMLNode &after = playlist->get_state();
4195         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4196         commit_reversible_command ();
4197 }
4198
4199 void
4200 Editor::nudge_track (bool use_edit, bool forwards)
4201 {
4202         boost::shared_ptr<Playlist> playlist;
4203         nframes64_t distance;
4204         nframes64_t next_distance;
4205         nframes64_t start;
4206
4207         if (use_edit) {
4208                 start = get_preferred_edit_position();
4209         } else {
4210                 start = 0;
4211         }
4212
4213         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4214                 return;
4215         }
4216
4217         if (selection->tracks.empty()) {
4218                 return;
4219         }
4220
4221         begin_reversible_command (_("nudge track"));
4222
4223         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4224
4225                 if ((playlist = (*i)->playlist()) == 0) {
4226                         continue;
4227                 }
4228
4229                 XMLNode &before = playlist->get_state();
4230                 playlist->nudge_after (start, distance, forwards);
4231                 XMLNode &after = playlist->get_state();
4232                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4233         }
4234
4235         commit_reversible_command ();
4236 }
4237
4238 void
4239 Editor::remove_last_capture ()
4240 {
4241         vector<string> choices;
4242         string prompt;
4243
4244         if (!session) {
4245                 return;
4246         }
4247
4248         if (Config->get_verify_remove_last_capture()) {
4249                 prompt  = _("Do you really want to destroy the last capture?"
4250                             "\n(This is destructive and cannot be undone)");
4251
4252                 choices.push_back (_("No, do nothing."));
4253                 choices.push_back (_("Yes, destroy it."));
4254
4255                 Gtkmm2ext::Choice prompter (prompt, choices);
4256
4257                 if (prompter.run () == 1) {
4258                         session->remove_last_capture ();
4259                 }
4260
4261         } else {
4262                 session->remove_last_capture();
4263         }
4264 }
4265
4266 void
4267 Editor::normalize_region ()
4268 {
4269         RegionSelection rs;
4270
4271         get_regions_for_action (rs);
4272
4273         if (!session) {
4274                 return;
4275         }
4276
4277         if (rs.empty()) {
4278                 return;
4279         }
4280
4281         begin_reversible_command (_("normalize"));
4282
4283         track_canvas->get_window()->set_cursor (*wait_cursor);
4284         gdk_flush ();
4285
4286         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4287                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4288                 if (!arv)
4289                         continue;
4290                 XMLNode &before = arv->region()->get_state();
4291                 arv->audio_region()->normalize_to (0.0f);
4292                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4293         }
4294
4295         commit_reversible_command ();
4296         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4297 }
4298
4299
4300 void
4301 Editor::denormalize_region ()
4302 {
4303         if (!session) {
4304                 return;
4305         }
4306
4307         RegionSelection rs;
4308
4309         get_regions_for_action (rs);
4310
4311         if (rs.empty()) {
4312                 return;
4313         }
4314
4315         begin_reversible_command ("denormalize");
4316
4317         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4318                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4319                 if (!arv)
4320                         continue;
4321                 XMLNode &before = arv->region()->get_state();
4322                 arv->audio_region()->set_scale_amplitude (1.0f);
4323                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4324         }
4325
4326         commit_reversible_command ();
4327 }
4328
4329 void
4330 Editor::adjust_region_scale_amplitude (bool up)
4331 {
4332         if (!session) {
4333                 return;
4334         }
4335
4336         RegionSelection rs;
4337
4338         get_regions_for_action (rs);
4339
4340         if (rs.empty()) {
4341                 return;
4342         }
4343
4344         begin_reversible_command ("denormalize");
4345
4346         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4347                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4348                 if (!arv)
4349                         continue;
4350                 XMLNode &before = arv->region()->get_state();
4351
4352                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4353
4354                 if (up) {
4355                         fraction += 0.05;
4356                         fraction = min (fraction, 1.0);
4357                 } else {
4358                         fraction -= 0.05;
4359                         fraction = max (fraction, 0.0);
4360                 }
4361
4362                 if (!up && fraction <= 0) {
4363                         continue;
4364                 }
4365
4366                 fraction = slider_position_to_gain (fraction);
4367                 fraction = coefficient_to_dB (fraction);
4368                 fraction = dB_to_coefficient (fraction);
4369
4370                 if (up && fraction >= 2.0) {
4371                         continue;
4372                 }
4373
4374                 arv->audio_region()->set_scale_amplitude (fraction);
4375                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4376         }
4377
4378         commit_reversible_command ();
4379 }
4380
4381
4382 void
4383 Editor::reverse_region ()
4384 {
4385         if (!session) {
4386                 return;
4387         }
4388
4389         Reverse rev (*session);
4390         apply_filter (rev, _("reverse regions"));
4391 }
4392
4393 void
4394 Editor::apply_filter (AudioFilter& filter, string command)
4395 {
4396         RegionSelection rs;
4397
4398         get_regions_for_action (rs);
4399
4400         if (rs.empty()) {
4401                 return;
4402         }
4403
4404         begin_reversible_command (command);
4405
4406         track_canvas->get_window()->set_cursor (*wait_cursor);
4407         gdk_flush ();
4408
4409         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4410                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4411                 if (!arv)
4412                         continue;
4413
4414                 boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4415
4416                 RegionSelection::iterator tmp;
4417
4418                 tmp = r;
4419                 ++tmp;
4420
4421                 if (arv->audio_region()->apply (filter) == 0) {
4422
4423                         XMLNode &before = playlist->get_state();
4424                         playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4425                         XMLNode &after = playlist->get_state();
4426                         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4427                 } else {
4428                         goto out;
4429                 }
4430
4431                 r = tmp;
4432         }
4433
4434         commit_reversible_command ();
4435         rs.clear ();
4436
4437   out:
4438         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4439 }
4440
4441 void
4442 Editor::region_selection_op (void (Region::*pmf)(void))
4443 {
4444         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4445                 Region* region = (*i)->region().get();
4446                 (region->*pmf)();
4447         }
4448 }
4449
4450
4451 void
4452 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4453 {
4454         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4455                 Region* region = (*i)->region().get();
4456                 (region->*pmf)(arg);
4457         }
4458 }
4459
4460 void
4461 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4462 {
4463         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4464                 Region* region = (*i)->region().get();
4465                 (region->*pmf)(yn);
4466         }
4467 }
4468
4469 void
4470 Editor::external_edit_region ()
4471 {
4472         if (!clicked_regionview) {
4473                 return;
4474         }
4475
4476         /* more to come */
4477 }
4478
4479 void
4480 Editor::brush (nframes64_t pos)
4481 {
4482         RegionSelection sel;
4483         RegionSelection rs;
4484
4485         get_regions_for_action (rs);
4486
4487         snap_to (pos);
4488
4489         if (rs.empty()) {
4490                 return;
4491         }
4492
4493         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4494                 mouse_brush_insert_region ((*i), pos);
4495         }
4496 }
4497
4498 void
4499 Editor::reset_region_gain_envelopes ()
4500 {
4501         RegionSelection rs;
4502
4503         get_regions_for_action (rs);
4504
4505         if (!session || rs.empty()) {
4506                 return;
4507         }
4508
4509         session->begin_reversible_command (_("reset region gain"));
4510
4511         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4512                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4513                 if (arv) {
4514                         AutomationList& alist (arv->audio_region()->envelope());
4515                         XMLNode& before (alist.get_state());
4516
4517                         arv->audio_region()->set_default_envelope ();
4518                         session->add_command (new MementoCommand<AutomationList>(arv->audio_region()->envelope(), &before, &alist.get_state()));
4519                 }
4520         }
4521
4522         session->commit_reversible_command ();
4523 }
4524
4525 void
4526 Editor::toggle_gain_envelope_visibility ()
4527 {
4528         RegionSelection rs;
4529
4530         get_regions_for_action (rs);
4531
4532         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4533                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4534                 if (arv) {
4535                         arv->set_envelope_visible (!arv->envelope_visible());
4536                 }
4537         }
4538 }
4539
4540 void
4541 Editor::toggle_gain_envelope_active ()
4542 {
4543         RegionSelection rs;
4544
4545         get_regions_for_action (rs);
4546
4547         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4548                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4549                 if (arv) {
4550                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4551                 }
4552         }
4553 }
4554
4555 void
4556 Editor::toggle_region_lock ()
4557 {
4558         RegionSelection rs;
4559
4560         get_regions_for_action (rs);
4561
4562         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4563                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4564                 if (arv) {
4565                         arv->audio_region()->set_locked (!arv->audio_region()->locked());
4566                 }
4567         }
4568 }
4569
4570 void
4571 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4572 {
4573         RegionSelection rs;
4574
4575         get_regions_for_action (rs);
4576
4577         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4578                 (*i)->region()->set_position_lock_style (ps);
4579         }
4580 }
4581
4582
4583 void
4584 Editor::toggle_region_mute ()
4585 {
4586         RegionSelection rs;
4587
4588         get_regions_for_action (rs);
4589
4590         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4591                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4592                 if (arv) {
4593                         arv->audio_region()->set_muted (!arv->audio_region()->muted());
4594                 }
4595         }
4596 }
4597
4598 void
4599 Editor::toggle_region_opaque ()
4600 {
4601         RegionSelection rs;
4602
4603         get_regions_for_action (rs);
4604
4605         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4606                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4607                 if (arv) {
4608                         arv->audio_region()->set_opaque (!arv->audio_region()->opaque());
4609                 }
4610         }
4611 }
4612
4613 void
4614 Editor::set_fade_length (bool in)
4615 {
4616         RegionSelection rs;
4617
4618         get_regions_for_action (rs);
4619
4620         /* we need a region to measure the offset from the start */
4621
4622         RegionView* rv;
4623
4624         if (!rs.empty()) {
4625                 rv = rs.front();
4626         } else if (entered_regionview) {
4627                 rv = entered_regionview;
4628         } else {
4629                 return;
4630         }
4631
4632         nframes64_t pos = get_preferred_edit_position();
4633         nframes64_t len;
4634         char* cmd;
4635
4636         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4637                 /* edit point is outside the relevant region */
4638                 return;
4639         }
4640
4641         if (in) {
4642                 if (pos <= rv->region()->position()) {
4643                         /* can't do it */
4644                         return;
4645                 }
4646                 len = pos - rv->region()->position();
4647                 cmd = _("set fade in length");
4648         } else {
4649                 if (pos >= rv->region()->last_frame()) {
4650                         /* can't do it */
4651                         return;
4652                 }
4653                 len = rv->region()->last_frame() - pos;
4654                 cmd = _("set fade out length");
4655         }
4656
4657         begin_reversible_command (cmd);
4658
4659         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4660                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4661
4662                 if (!tmp) {
4663                         return;
4664                 }
4665
4666                 AutomationList* alist;
4667                 if (in) {
4668                         alist = &tmp->audio_region()->fade_in();
4669                 } else {
4670                         alist = &tmp->audio_region()->fade_out();
4671                 }
4672
4673                 XMLNode &before = alist->get_state();
4674
4675                 if (in) {
4676                         tmp->audio_region()->set_fade_in_length (len);
4677                         tmp->audio_region()->set_fade_in_active (true);
4678                 } else {
4679                         tmp->audio_region()->set_fade_out_length (len);
4680                         tmp->audio_region()->set_fade_out_active (true);
4681                 }
4682
4683                 XMLNode &after = alist->get_state();
4684                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4685         }
4686
4687         commit_reversible_command ();
4688 }
4689
4690
4691 void
4692 Editor::toggle_fade_active (bool in)
4693 {
4694         RegionSelection rs;
4695
4696         get_regions_for_action (rs);
4697
4698         if (rs.empty()) {
4699                 return;
4700         }
4701
4702         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4703         bool have_switch = false;
4704         bool yn;
4705
4706         begin_reversible_command (cmd);
4707
4708         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4709                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4710
4711                 if (!tmp) {
4712                         return;
4713                 }
4714
4715                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4716
4717                 /* make the behaviour consistent across all regions */
4718
4719                 if (!have_switch) {
4720                         if (in) {
4721                                 yn = region->fade_in_active();
4722                         } else {
4723                                 yn = region->fade_out_active();
4724                         }
4725                         have_switch = true;
4726                 }
4727
4728                 XMLNode &before = region->get_state();
4729                 if (in) {
4730                         region->set_fade_in_active (!yn);
4731                 } else {
4732                         region->set_fade_out_active (!yn);
4733                 }
4734                 XMLNode &after = region->get_state();
4735                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4736         }
4737
4738         commit_reversible_command ();
4739 }
4740
4741 void
4742 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4743 {
4744         RegionSelection rs;
4745
4746         get_regions_for_action (rs);
4747
4748         if (rs.empty()) {
4749                 return;
4750         }
4751
4752         begin_reversible_command (_("set fade in shape"));
4753
4754         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4755                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4756
4757                 if (!tmp) {
4758                         return;
4759                 }
4760
4761                 AutomationList& alist = tmp->audio_region()->fade_in();
4762                 XMLNode &before = alist.get_state();
4763
4764                 tmp->audio_region()->set_fade_in_shape (shape);
4765
4766                 XMLNode &after = alist.get_state();
4767                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4768         }
4769
4770         commit_reversible_command ();
4771
4772 }
4773
4774 void
4775 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4776 {
4777         RegionSelection rs;
4778
4779         get_regions_for_action (rs);
4780
4781         if (rs.empty()) {
4782                 return;
4783         }
4784
4785         begin_reversible_command (_("set fade out shape"));
4786
4787         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4788                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4789
4790                 if (!tmp) {
4791                         return;
4792                 }
4793
4794                 AutomationList& alist = tmp->audio_region()->fade_out();
4795                 XMLNode &before = alist.get_state();
4796
4797                 tmp->audio_region()->set_fade_out_shape (shape);
4798
4799                 XMLNode &after = alist.get_state();
4800                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4801         }
4802
4803         commit_reversible_command ();
4804 }
4805
4806 void
4807 Editor::set_fade_in_active (bool yn)
4808 {
4809         RegionSelection rs;
4810
4811         get_regions_for_action (rs);
4812
4813         if (rs.empty()) {
4814                 return;
4815         }
4816
4817         begin_reversible_command (_("set fade in active"));
4818
4819         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4820                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4821
4822                 if (!tmp) {
4823                         return;
4824                 }
4825
4826
4827                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4828
4829                 XMLNode &before = ar->get_state();
4830
4831                 ar->set_fade_in_active (yn);
4832
4833                 XMLNode &after = ar->get_state();
4834                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4835         }
4836
4837         commit_reversible_command ();
4838 }
4839
4840 void
4841 Editor::set_fade_out_active (bool yn)
4842 {
4843         RegionSelection rs;
4844
4845         get_regions_for_action (rs);
4846
4847         if (rs.empty()) {
4848                 return;
4849         }
4850
4851         begin_reversible_command (_("set fade out active"));
4852
4853         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4854                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4855
4856                 if (!tmp) {
4857                         return;
4858                 }
4859
4860                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4861
4862                 XMLNode &before = ar->get_state();
4863
4864                 ar->set_fade_out_active (yn);
4865
4866                 XMLNode &after = ar->get_state();
4867                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4868         }
4869
4870         commit_reversible_command ();
4871 }
4872
4873
4874 /** Update crossfade visibility after its configuration has been changed */
4875 void
4876 Editor::update_xfade_visibility ()
4877 {
4878         _xfade_visibility = Config->get_xfades_visible ();
4879
4880         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4881                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4882                 if (v) {
4883                         if (_xfade_visibility) {
4884                                 v->show_all_xfades ();
4885                         } else {
4886                                 v->hide_all_xfades ();
4887                         }
4888                 }
4889         }
4890 }
4891
4892 void
4893 Editor::set_edit_point ()
4894 {
4895         nframes64_t where;
4896         bool ignored;
4897
4898         if (!mouse_frame (where, ignored)) {
4899                 return;
4900         }
4901
4902         snap_to (where);
4903
4904         if (selection->markers.empty()) {
4905
4906                 mouse_add_new_marker (where);
4907
4908         } else {
4909                 bool ignored;
4910
4911                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
4912
4913                 if (loc) {
4914                         loc->move_to (where);
4915                 }
4916         }
4917 }
4918
4919 void
4920 Editor::set_playhead_cursor ()
4921 {
4922         if (entered_marker) {
4923                 session->request_locate (entered_marker->position(), session->transport_rolling());
4924         } else {
4925                 nframes64_t where;
4926                 bool ignored;
4927
4928                 if (!mouse_frame (where, ignored)) {
4929                         return;
4930                 }
4931
4932                 snap_to (where);
4933
4934                 if (session) {
4935                         session->request_locate (where, session->transport_rolling());
4936                 }
4937         }
4938 }
4939
4940 void
4941 Editor::split ()
4942 {
4943         RegionSelection rs;
4944
4945         get_regions_for_action (rs);
4946
4947         nframes64_t where = get_preferred_edit_position();
4948
4949         if (rs.empty()) {
4950                 return;
4951         }
4952
4953         split_regions_at (where, rs);
4954 }
4955
4956 void
4957 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
4958 {
4959         if (entered_track && mouse_mode == MouseObject) {
4960                 if (!selection->tracks.empty()) {
4961                         if (!selection->selected (entered_track)) {
4962                                 selection->add (entered_track);
4963                         }
4964                 } else {
4965                         /* there is no selection, but this operation requires/prefers selected objects */
4966
4967                         if (op_really_wants_one_track_if_none_are_selected) {
4968                                 selection->set (entered_track);
4969                         }
4970                 }
4971         }
4972 }
4973
4974 void
4975 Editor::trim_region_front ()
4976 {
4977         trim_region (true);
4978 }
4979
4980 void
4981 Editor::trim_region_back ()
4982 {
4983         trim_region (false);
4984 }
4985
4986 void
4987 Editor::trim_region (bool front)
4988 {
4989         nframes64_t where = get_preferred_edit_position();
4990         RegionSelection rs;
4991
4992         get_regions_for_action (rs);
4993
4994         if (rs.empty()) {
4995                 return;
4996         }
4997
4998         begin_reversible_command (front ? _("trim front") : _("trim back"));
4999
5000         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
5001                 if (!(*i)->region()->locked()) {
5002                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
5003                         XMLNode &before = pl->get_state();
5004                         if (front) {
5005                                 (*i)->region()->trim_front (where, this);
5006                         } else {
5007                                 (*i)->region()->trim_end (where, this);
5008                         }
5009                         XMLNode &after = pl->get_state();
5010                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
5011                 }
5012         }
5013
5014         commit_reversible_command ();
5015 }
5016
5017 struct EditorOrderRouteSorter {
5018     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5019             /* use of ">" forces the correct sort order */
5020             return a->order_key ("editor") < b->order_key ("editor");
5021     }
5022 };
5023
5024 void
5025 Editor::select_next_route()
5026 {
5027         if (selection->tracks.empty()) {
5028                 selection->set (track_views.front());
5029                 return;
5030         }
5031
5032         TimeAxisView* current = selection->tracks.front();
5033
5034         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5035                 if (*i == current) {
5036                         ++i;
5037                         if (i != track_views.end()) {
5038                                 selection->set (*i);
5039                         } else {
5040                                 selection->set (*(track_views.begin()));
5041                         }
5042                         break;
5043                 }
5044         }
5045 }
5046
5047 void
5048 Editor::select_prev_route()
5049 {
5050         if (selection->tracks.empty()) {
5051                 selection->set (track_views.front());
5052                 return;
5053         }
5054
5055         TimeAxisView* current = selection->tracks.front();
5056
5057         for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5058                 if (*i == current) {
5059                         ++i;
5060                         if (i != track_views.rend()) {
5061                                 selection->set (*i);
5062                         } else {
5063                                 selection->set (*(track_views.rbegin()));
5064                         }
5065                         break;
5066                 }
5067         }
5068 }
5069
5070 void
5071 Editor::set_loop_from_selection (bool play)
5072 {
5073         if (session == 0 || selection->time.empty()) {
5074                 return;
5075         }
5076
5077         nframes64_t start = selection->time[clicked_selection].start;
5078         nframes64_t end = selection->time[clicked_selection].end;
5079
5080         set_loop_range (start, end,  _("set loop range from selection"));
5081
5082         if (play) {
5083                 session->request_play_loop (true);
5084                 session->request_locate (start, true);
5085         }
5086 }
5087
5088 void
5089 Editor::set_loop_from_edit_range (bool play)
5090 {
5091         if (session == 0) {
5092                 return;
5093         }
5094
5095         nframes64_t start;
5096         nframes64_t end;
5097
5098         if (!get_edit_op_range (start, end)) {
5099                 return;
5100         }
5101
5102         set_loop_range (start, end,  _("set loop range from edit range"));
5103
5104         if (play) {
5105                 session->request_play_loop (true);
5106                 session->request_locate (start, true);
5107         }
5108 }
5109
5110 void
5111 Editor::set_loop_from_region (bool play)
5112 {
5113         nframes64_t start = max_frames;
5114         nframes64_t end = 0;
5115
5116         RegionSelection rs;
5117
5118         get_regions_for_action (rs);
5119
5120         if (rs.empty()) {
5121                 return;
5122         }
5123
5124         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5125                 if ((*i)->region()->position() < start) {
5126                         start = (*i)->region()->position();
5127                 }
5128                 if ((*i)->region()->last_frame() + 1 > end) {
5129                         end = (*i)->region()->last_frame() + 1;
5130                 }
5131         }
5132
5133         set_loop_range (start, end, _("set loop range from region"));
5134
5135         if (play) {
5136                 session->request_play_loop (true);
5137                 session->request_locate (start, true);
5138         }
5139 }
5140
5141 void
5142 Editor::set_punch_from_selection ()
5143 {
5144         if (session == 0 || selection->time.empty()) {
5145                 return;
5146         }
5147
5148         nframes64_t start = selection->time[clicked_selection].start;
5149         nframes64_t end = selection->time[clicked_selection].end;
5150
5151         set_punch_range (start, end,  _("set punch range from selection"));
5152 }
5153
5154 void
5155 Editor::set_punch_from_edit_range ()
5156 {
5157         if (session == 0) {
5158                 return;
5159         }
5160
5161         nframes64_t start;
5162         nframes64_t end;
5163
5164         if (!get_edit_op_range (start, end)) {
5165                 return;
5166         }
5167
5168         set_punch_range (start, end,  _("set punch range from edit range"));
5169 }
5170
5171 void
5172 Editor::set_punch_from_region ()
5173 {
5174         nframes64_t start = max_frames;
5175         nframes64_t end = 0;
5176
5177         RegionSelection rs;
5178
5179         get_regions_for_action (rs);
5180
5181         if (rs.empty()) {
5182                 return;
5183         }
5184
5185         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5186                 if ((*i)->region()->position() < start) {
5187                         start = (*i)->region()->position();
5188                 }
5189                 if ((*i)->region()->last_frame() + 1 > end) {
5190                         end = (*i)->region()->last_frame() + 1;
5191                 }
5192         }
5193
5194         set_punch_range (start, end, _("set punch range from region"));
5195 }
5196
5197 void
5198 Editor::pitch_shift_regions ()
5199 {
5200         RegionSelection rs;
5201
5202         get_regions_for_action (rs);
5203
5204         if (rs.empty()) {
5205                 return;
5206         }
5207
5208         pitch_shift (rs, 1.2);
5209 }
5210
5211 void
5212 Editor::use_region_as_bar ()
5213 {
5214         if (!session) {
5215                 return;
5216         }
5217
5218         RegionSelection rs;
5219
5220         get_regions_for_action (rs);
5221
5222         if (rs.empty()) {
5223                 return;
5224         }
5225
5226         RegionView* rv = rs.front();
5227
5228         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5229 }
5230
5231 void
5232 Editor::use_range_as_bar ()
5233 {
5234         nframes64_t start, end;
5235         if (get_edit_op_range (start, end)) {
5236                 define_one_bar (start, end);
5237         }
5238 }
5239
5240 void
5241 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5242 {
5243         nframes64_t length = end - start;
5244
5245         const Meter& m (session->tempo_map().meter_at (start));
5246
5247         /* length = 1 bar */
5248
5249         /* now we want frames per beat.
5250            we have frames per bar, and beats per bar, so ...
5251         */
5252
5253         double frames_per_beat = length / m.beats_per_bar();
5254
5255         /* beats per minute = */
5256
5257         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5258
5259         /* now decide whether to:
5260
5261             (a) set global tempo
5262             (b) add a new tempo marker
5263
5264         */
5265
5266         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5267
5268         bool do_global = false;
5269
5270         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5271
5272                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5273                    at the start, or create a new marker
5274                 */
5275
5276                 vector<string> options;
5277                 options.push_back (_("Cancel"));
5278                 options.push_back (_("Add new marker"));
5279                 options.push_back (_("Set global tempo"));
5280                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5281                           options);
5282                 c.set_default_response (2);
5283
5284                 switch (c.run()) {
5285                 case 0:
5286                         return;
5287
5288                 case 2:
5289                         do_global = true;
5290                         break;
5291
5292                 default:
5293                         do_global = false;
5294                 }
5295
5296         } else {
5297
5298                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5299                    if the marker is at the region starter, change it, otherwise add
5300                    a new tempo marker
5301                 */
5302         }
5303
5304         begin_reversible_command (_("set tempo from region"));
5305         XMLNode& before (session->tempo_map().get_state());
5306
5307         if (do_global) {
5308                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5309         } else if (t.frame() == start) {
5310                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5311         } else {
5312                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5313         }
5314
5315         XMLNode& after (session->tempo_map().get_state());
5316
5317         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5318         commit_reversible_command ();
5319 }
5320
5321 void
5322 Editor::split_region_at_transients ()
5323 {
5324         AnalysisFeatureList positions;
5325
5326         if (!session) {
5327                 return;
5328         }
5329
5330         RegionSelection rs;
5331
5332         get_regions_for_action (rs);
5333
5334         if (rs.empty()) {
5335                 return;
5336         }
5337
5338         session->begin_reversible_command (_("split regions"));
5339
5340         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5341
5342                 RegionSelection::iterator tmp;
5343
5344                 tmp = i;
5345                 ++tmp;
5346
5347                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5348
5349                 if (ar && (ar->get_transients (positions) == 0)) {
5350                         split_region_at_points ((*i)->region(), positions, true);
5351                         positions.clear ();
5352                 }
5353
5354                 i = tmp;
5355         }
5356
5357         session->commit_reversible_command ();
5358
5359 }
5360
5361 void
5362 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5363 {
5364         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
5365         bool use_rhythmic_rodent = false;
5366
5367         if (!ar) {
5368                 return;
5369         }
5370
5371         boost::shared_ptr<Playlist> pl = ar->playlist();
5372
5373         if (!pl) {
5374                 return;
5375         }
5376
5377         if (positions.empty()) {
5378                 return;
5379         }
5380
5381
5382         if (positions.size() > 20) {
5383                 Glib::ustring msgstr = string_compose (_("You are about to split\n%1\ninto %2 pieces.\nThis could take a long time."), ar->name(), positions.size() + 1);
5384                 MessageDialog msg (msgstr,
5385                                    false,
5386                                    Gtk::MESSAGE_INFO,
5387                                    Gtk::BUTTONS_OK_CANCEL);
5388
5389                 if (can_ferret) {
5390                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5391                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5392                 } else {
5393                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5394                 }
5395
5396                 msg.set_title (_("Excessive split?"));
5397                 msg.present ();
5398
5399                 int response = msg.run();
5400                 msg.hide ();
5401                 switch (response) {
5402                 case RESPONSE_OK:
5403                         break;
5404                 case RESPONSE_APPLY:
5405                         use_rhythmic_rodent = true;
5406                         break;
5407                 default:
5408                         return;
5409                 }
5410         }
5411
5412         if (use_rhythmic_rodent) {
5413                 show_rhythm_ferret ();
5414                 return;
5415         }
5416
5417         AnalysisFeatureList::const_iterator x;
5418
5419         nframes64_t pos = ar->position();
5420
5421         XMLNode& before (pl->get_state());
5422
5423         x = positions.begin();
5424
5425         while (x != positions.end()) {
5426                 if ((*x) > pos) {
5427                         break;
5428                 }
5429                 ++x;
5430         }
5431
5432         if (x == positions.end()) {
5433                 return;
5434         }
5435
5436         pl->freeze ();
5437         pl->remove_region (ar);
5438
5439         while (x != positions.end()) {
5440
5441                 /* file start = original start + how far we from the initial position ?
5442                  */
5443
5444                 nframes64_t file_start = ar->start() + (pos - ar->position());
5445
5446                 /* length = next position - current position
5447                  */
5448
5449                 nframes64_t len = (*x) - pos;
5450
5451                 /* XXX we do we really want to allow even single-sample regions?
5452                    shouldn't we have some kind of lower limit on region size?
5453                 */
5454
5455                 if (len <= 0) {
5456                         break;
5457                 }
5458
5459                 string new_name;
5460
5461                 if (session->region_name (new_name, ar->name())) {
5462                         break;
5463                 }
5464
5465                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5466
5467                 boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5468                 pl->add_region (r, pos);
5469
5470                 pos += len;
5471                 ++x;
5472
5473                 if (*x > ar->last_frame()) {
5474
5475                         /* add final fragment */
5476
5477                         file_start = ar->start() + (pos - ar->position());
5478                         len = ar->last_frame() - pos;
5479
5480                         boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5481                         pl->add_region (r, pos);
5482
5483                         break;
5484                 }
5485         }
5486
5487         pl->thaw ();
5488
5489         XMLNode& after (pl->get_state());
5490
5491         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
5492 }
5493
5494 void
5495 Editor::tab_to_transient (bool forward)
5496 {
5497         AnalysisFeatureList positions;
5498
5499         if (!session) {
5500                 return;
5501         }
5502
5503         nframes64_t pos = session->audible_frame ();
5504
5505         if (!selection->tracks.empty()) {
5506
5507                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5508
5509                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5510
5511                         if (rtv) {
5512                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
5513                                 if (ds) {
5514                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
5515                                         if (pl) {
5516                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5517
5518                                                 if (result >= 0) {
5519                                                         positions.push_back (result);
5520                                                 }
5521                                         }
5522                                 }
5523                         }
5524                 }
5525
5526         } else {
5527
5528                 RegionSelection rs;
5529
5530                 get_regions_for_action (rs);
5531
5532                 if (rs.empty()) {
5533                         return;
5534                 }
5535
5536                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5537                         (*r)->region()->get_transients (positions);
5538                 }
5539         }
5540
5541         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
5542
5543         if (forward) {
5544                 AnalysisFeatureList::iterator x;
5545
5546                 for (x = positions.begin(); x != positions.end(); ++x) {
5547                         if ((*x) > pos) {
5548                                 break;
5549                         }
5550                 }
5551
5552                 if (x != positions.end ()) {
5553                         session->request_locate (*x);
5554                 }
5555
5556         } else {
5557                 AnalysisFeatureList::reverse_iterator x;
5558
5559                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
5560                         if ((*x) < pos) {
5561                                 break;
5562                         }
5563                 }
5564
5565                 if (x != positions.rend ()) {
5566                         session->request_locate (*x);
5567                 }
5568         }
5569 }
5570
5571 void
5572 Editor::playhead_forward_to_grid ()
5573 {
5574         if (!session) return;
5575         nframes64_t pos = playhead_cursor->current_frame;
5576         if (pos < max_frames - 1) {
5577                 pos += 2;
5578                 snap_to_internal (pos, 1, false);
5579                 session->request_locate (pos);
5580         }
5581 }
5582
5583
5584 void
5585 Editor::playhead_backward_to_grid ()
5586 {
5587         if (!session) return;
5588         nframes64_t pos = playhead_cursor->current_frame;
5589         if (pos > 2) {
5590                 pos -= 2;
5591                 snap_to_internal (pos, -1, false);
5592                 session->request_locate (pos);
5593         }
5594 }
5595
5596 void
5597 Editor::set_track_height (uint32_t h)
5598 {
5599         TrackSelection& ts (selection->tracks);
5600
5601         if (ts.empty()) {
5602                 return;
5603         }
5604
5605         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5606                 (*x)->set_height (h);
5607         }
5608 }
5609
5610 void
5611 Editor::set_track_height_largest ()
5612 {
5613         set_track_height (TimeAxisView::hLargest);
5614 }
5615 void
5616 Editor::set_track_height_large ()
5617 {
5618         set_track_height (TimeAxisView::hLarge);
5619 }
5620 void
5621 Editor::set_track_height_larger ()
5622 {
5623         set_track_height (TimeAxisView::hLarger);
5624 }
5625 void
5626 Editor::set_track_height_normal ()
5627 {
5628         set_track_height (TimeAxisView::hNormal);
5629 }
5630 void
5631 Editor::set_track_height_smaller ()
5632 {
5633         set_track_height (TimeAxisView::hSmaller);
5634 }
5635 void
5636 Editor::set_track_height_small ()
5637 {
5638         set_track_height (TimeAxisView::hSmall);
5639 }
5640
5641 void
5642 Editor::toggle_tracks_active ()
5643 {
5644         TrackSelection& ts (selection->tracks);
5645         bool first = true;
5646         bool target = false;
5647
5648         if (ts.empty()) {
5649                 return;
5650         }
5651
5652         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5653                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
5654
5655                 if (rtv) {
5656                         if (first) {
5657                                 target = !rtv->_route->active();
5658                                 first = false;
5659                         }
5660                         rtv->_route->set_active (target);
5661                 }
5662         }
5663 }
5664
5665 void
5666 Editor::remove_tracks ()
5667 {
5668         TrackSelection& ts (selection->tracks);
5669
5670         if (ts.empty()) {
5671                 return;
5672         }
5673
5674         vector<string> choices;
5675         string prompt;
5676         int ntracks = 0;
5677         int nbusses = 0;
5678         const char* trackstr;
5679         const char* busstr;
5680         vector<boost::shared_ptr<Route> > routes;
5681
5682         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5683                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
5684                 if (rtv) {
5685                         if (rtv->is_track()) {
5686                                 ntracks++;
5687                         } else {
5688                                 nbusses++;
5689                         }
5690                 }
5691                 routes.push_back (rtv->_route);
5692         }
5693
5694         if (ntracks + nbusses == 0) {
5695                 return;
5696         }
5697
5698         if (ntracks > 1) {
5699                 trackstr = _("tracks");
5700         } else {
5701                 trackstr = _("track");
5702         }
5703
5704         if (nbusses > 1) {
5705                 busstr = _("busses");
5706         } else {
5707                 busstr = _("bus");
5708         }
5709
5710         if (ntracks) {
5711                 if (nbusses) {
5712                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
5713                                                     "(You may also lose the playlists associated with the %2)\n\n"
5714                                                     "This action cannot be undone!"),
5715                                                   ntracks, trackstr, nbusses, busstr);
5716                 } else {
5717                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
5718                                                     "(You may also lose the playlists associated with the %2)\n\n"
5719                                                     "This action cannot be undone!"),
5720                                                   ntracks, trackstr);
5721                 }
5722         } else if (nbusses) {
5723                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
5724                                           nbusses, busstr);
5725         }
5726
5727         choices.push_back (_("No, do nothing."));
5728         if (ntracks + nbusses > 1) {
5729                 choices.push_back (_("Yes, remove them."));
5730         } else {
5731                 choices.push_back (_("Yes, remove it."));
5732         }
5733
5734         Choice prompter (prompt, choices);
5735
5736         if (prompter.run () != 1) {
5737                 return;
5738         }
5739
5740         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
5741                 session->remove_route (*x);
5742         }
5743 }
5744
5745 void
5746 Editor::set_waveform_scale (WaveformScale ws)
5747 {
5748         TrackSelection& ts (selection->tracks);
5749
5750         if (ts.empty()) {
5751                 return;
5752         }
5753
5754         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5755                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (*x);
5756                 if (atv) {
5757                         atv->set_waveform_scale (ws);
5758                 }
5759         }
5760 }
5761
5762 void
5763 Editor::do_insert_time ()
5764 {
5765         if (selection->tracks.empty()) {
5766                 return;
5767         }
5768
5769         nframes64_t pos = get_preferred_edit_position ();
5770         ArdourDialog d (*this, _("Insert Time"));
5771         VButtonBox button_box;
5772         VBox option_box;
5773         RadioButtonGroup group;
5774         RadioButton leave_button (group, _("Stay in position"));
5775         RadioButton move_button (group, _("Move"));
5776         RadioButton split_button (group, _("Split & Later Section Moves"));
5777         Label intersect_option_label (_("Intersected regions should:"));
5778         CheckButton glue_button (_("Move Glued Regions"));
5779         CheckButton marker_button (_("Move Markers"));
5780         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
5781         HBox clock_box;
5782
5783         clock.set (0);
5784         clock.set_session (session);
5785         clock.set_bbt_reference (pos);
5786
5787         clock_box.pack_start (clock, false, true);
5788
5789         option_box.set_spacing (6);
5790         option_box.pack_start (intersect_option_label, false, false);
5791         option_box.pack_start (button_box, false, false);
5792         option_box.pack_start (glue_button, false, false);
5793         option_box.pack_start (marker_button, false, false);
5794
5795         button_box.pack_start (leave_button, false, false);
5796         button_box.pack_start (move_button, false, false);
5797         button_box.pack_start (split_button, false, false);
5798
5799         d.get_vbox()->set_border_width (12);
5800         d.get_vbox()->pack_start (clock_box, false, false);
5801         d.get_vbox()->pack_start (option_box, false, false);
5802
5803         leave_button.show ();
5804         move_button.show ();
5805         split_button.show ();
5806         intersect_option_label.show ();
5807         option_box.show ();
5808         button_box.show ();
5809         glue_button.show ();
5810         clock.show_all();
5811         clock_box.show ();
5812         marker_button.show ();
5813
5814         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
5815         d.add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
5816         d.show ();
5817
5818         int response = d.run ();
5819
5820         if (response != RESPONSE_OK) {
5821                 return;
5822         }
5823
5824         nframes64_t distance = clock.current_duration (pos);
5825
5826         if (distance == 0) {
5827                 return;
5828         }
5829
5830         InsertTimeOption opt;
5831
5832         if (leave_button.get_active()) {
5833                 opt = LeaveIntersected;
5834         } else if (move_button.get_active()) {
5835                 opt = MoveIntersected;
5836         } else {
5837                 opt = SplitIntersected;
5838         }
5839
5840         insert_time (pos, distance, opt, glue_button.get_active(), marker_button.get_active());
5841 }
5842
5843 void
5844 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
5845                      bool ignore_music_glue, bool markers_too)
5846 {
5847         bool commit = false;
5848
5849         if (Config->get_edit_mode() == Lock) {
5850                 return;
5851         }
5852
5853         begin_reversible_command (_("insert time"));
5854
5855         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
5856                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
5857
5858                 if (!pl) {
5859                         continue;
5860                 }
5861
5862                 XMLNode &before = pl->get_state();
5863
5864                 if (opt == SplitIntersected) {
5865                         pl->split (pos);
5866                 }
5867
5868                 pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
5869
5870                 XMLNode &after = pl->get_state();
5871
5872                 session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
5873                 commit = true;
5874         }
5875
5876         if (markers_too) {
5877                 bool moved = false;
5878                 XMLNode& before (session->locations()->get_state());
5879                 Locations::LocationList copy (session->locations()->list());
5880
5881                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
5882
5883                         Locations::LocationList::const_iterator tmp;
5884
5885                         if ((*i)->start() >= pos) {
5886                                 (*i)->set_start ((*i)->start() + frames);
5887                                 if (!(*i)->is_mark()) {
5888                                         (*i)->set_end ((*i)->end() + frames);
5889                                 }
5890                                 moved = true;
5891                         }
5892                 }
5893
5894                 if (moved) {
5895                         XMLNode& after (session->locations()->get_state());
5896                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
5897                 }
5898         }
5899
5900         if (commit) {
5901                 commit_reversible_command ();
5902         }
5903 }
5904
5905 void
5906 Editor::fit_tracks ()
5907 {
5908         if (selection->tracks.empty()) {
5909                 return;
5910         }
5911
5912         uint32_t child_heights = 0;
5913
5914         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5915
5916                 if (!(*t)->marked_for_display()) {
5917                         continue;
5918                 }
5919
5920                 child_heights += ((*t)->effective_height - (*t)->current_height());
5921         }
5922
5923         uint32_t h = (uint32_t) floor ((canvas_height - child_heights)/selection->tracks.size());
5924         double first_y_pos = DBL_MAX;
5925
5926         undo_visual_stack.push_back (current_visual_state());
5927
5928         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5929                 (*t)->set_height (h);
5930                 first_y_pos = std::min ((*t)->y_position, first_y_pos);
5931         }
5932
5933
5934         vertical_adjustment.set_value (first_y_pos);
5935
5936         redo_visual_stack.push_back (current_visual_state());
5937 }
5938
5939 void
5940 Editor::save_visual_state (uint32_t n)
5941 {
5942         while (visual_states.size() <= n) {
5943                 visual_states.push_back (0);
5944         }
5945
5946         if (visual_states[n] != 0) {
5947                 delete visual_states[n];
5948         }
5949
5950         visual_states[n] = current_visual_state (true);
5951         gdk_beep ();
5952 }
5953
5954 void
5955 Editor::goto_visual_state (uint32_t n)
5956 {
5957         if (visual_states.size() <= n) {
5958                 return;
5959         }
5960
5961         if (visual_states[n] == 0) {
5962                 return;
5963         }
5964
5965         use_visual_state (*visual_states[n]);
5966 }
5967
5968 void
5969 Editor::start_visual_state_op (uint32_t n)
5970 {
5971         cerr << "Start\n";
5972         if (visual_state_op_connection.empty()) {
5973                 cerr << "\tqueue\n";
5974                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
5975         }
5976 }
5977
5978 void
5979 Editor::cancel_visual_state_op (uint32_t n)
5980 {
5981         cerr << "Cancel\n";
5982         if (!visual_state_op_connection.empty()) {
5983                 cerr << "\tgoto\n";
5984                 visual_state_op_connection.disconnect();
5985                 goto_visual_state (n);
5986         }
5987 }
5988
5989 bool
5990 Editor::end_visual_state_op (uint32_t n)
5991 {
5992         visual_state_op_connection.disconnect();
5993         save_visual_state (n);
5994
5995         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
5996         char buf[32];
5997         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
5998         pup->set_text (buf);
5999         pup->touch();
6000
6001         return false; // do not call again
6002 }