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
3238         boost::shared_ptr<Region> r ((*sorted.begin())->region());
3239
3240         switch (point) {
3241         case Start:
3242                 pos = position;
3243                 if (position > r->position()) {
3244                         distance = position - r->position();
3245                         dir = 1;
3246                 } else {
3247                         distance = r->position() - position;
3248                         dir = -1;
3249                 }
3250                 break;
3251
3252         case End:
3253                 if (position > r->last_frame()) {
3254                         distance = position - r->last_frame();
3255                         pos = r->position() + distance;
3256                         dir = 1;
3257                 } else {
3258                         distance = r->last_frame() - position;
3259                         pos = r->position() - distance;
3260                         dir = -1;
3261                 }
3262                 break;
3263
3264         case SyncPoint:
3265                 pos = r->adjust_to_sync (position);
3266                 if (pos > r->position()) {
3267                         distance = pos - r->position();
3268                         dir = 1;
3269                 } else {
3270                         distance = r->position() - pos;
3271                         dir = -1;
3272                 }
3273                 break;
3274         }
3275
3276         if (pos == r->position()) {
3277                 return;
3278         }
3279
3280         begin_reversible_command (_("align selection (relative)"));
3281
3282         /* move first one specially */
3283
3284         XMLNode &before = r->playlist()->get_state();
3285         r->set_position (pos, this);
3286         XMLNode &after = r->playlist()->get_state();
3287         session->add_command(new MementoCommand<Playlist>(*(r->playlist()), &before, &after));
3288
3289         /* move rest by the same amount */
3290
3291         sorted.pop_front();
3292
3293         for (list<RegionView*>::iterator i = sorted.begin(); i != sorted.end(); ++i) {
3294
3295                 boost::shared_ptr<Region> region ((*i)->region());
3296
3297                 XMLNode &before = region->playlist()->get_state();
3298
3299                 if (dir > 0) {
3300                         region->set_position (region->position() + distance, this);
3301                 } else {
3302                         region->set_position (region->position() - distance, this);
3303                 }
3304
3305                 XMLNode &after = region->playlist()->get_state();
3306                 session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3307
3308         }
3309
3310         commit_reversible_command ();
3311 }
3312
3313 void
3314 Editor::align_selection (RegionPoint point, nframes64_t position, const RegionSelection& rs)
3315 {
3316         if (rs.empty()) {
3317                 return;
3318         }
3319
3320         begin_reversible_command (_("align selection"));
3321
3322         for (RegionSelection::const_iterator i = rs.begin(); i != rs.end(); ++i) {
3323                 align_region_internal ((*i)->region(), point, position);
3324         }
3325
3326         commit_reversible_command ();
3327 }
3328
3329 void
3330 Editor::align_region (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3331 {
3332         begin_reversible_command (_("align region"));
3333         align_region_internal (region, point, position);
3334         commit_reversible_command ();
3335 }
3336
3337 void
3338 Editor::align_region_internal (boost::shared_ptr<Region> region, RegionPoint point, nframes64_t position)
3339 {
3340         XMLNode &before = region->playlist()->get_state();
3341
3342         switch (point) {
3343         case SyncPoint:
3344                 region->set_position (region->adjust_to_sync (position), this);
3345                 break;
3346
3347         case End:
3348                 if (position > region->length()) {
3349                         region->set_position (position - region->length(), this);
3350                 }
3351                 break;
3352
3353         case Start:
3354                 region->set_position (position, this);
3355                 break;
3356         }
3357
3358         XMLNode &after = region->playlist()->get_state();
3359         session->add_command(new MementoCommand<Playlist>(*(region->playlist()), &before, &after));
3360 }
3361
3362 void
3363 Editor::trim_region_to_loop ()
3364 {
3365         Location* loc = session->locations()->auto_loop_location();
3366         if (!loc) {
3367                 return;
3368         }
3369         trim_region_to_location (*loc, _("trim to loop"));
3370 }
3371
3372 void
3373 Editor::trim_region_to_punch ()
3374 {
3375         Location* loc = session->locations()->auto_punch_location();
3376         if (!loc) {
3377                 return;
3378         }
3379         trim_region_to_location (*loc, _("trim to punch"));
3380 }
3381
3382 void
3383 Editor::trim_region_to_location (const Location& loc, const char* str)
3384 {
3385         RegionSelection rs;
3386
3387         get_regions_for_action (rs);
3388
3389         begin_reversible_command (str);
3390
3391         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3392                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3393
3394                 if (!arv) {
3395                         continue;
3396                 }
3397
3398                 /* require region to span proposed trim */
3399
3400                 switch (arv->region()->coverage (loc.start(), loc.end())) {
3401                 case OverlapInternal:
3402                         break;
3403                 default:
3404                         continue;
3405                 }
3406
3407                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3408
3409                 if (!atav) {
3410                         return;
3411                 }
3412
3413                 float speed = 1.0;
3414                 nframes64_t start;
3415                 nframes64_t end;
3416
3417                 if (atav->get_diskstream() != 0) {
3418                         speed = atav->get_diskstream()->speed();
3419                 }
3420
3421                 start = session_frame_to_track_frame (loc.start(), speed);
3422                 end = session_frame_to_track_frame (loc.end(), speed);
3423
3424                 XMLNode &before = arv->region()->playlist()->get_state();
3425                 arv->region()->trim_to (start, (end - start), this);
3426                 XMLNode &after = arv->region()->playlist()->get_state();
3427                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3428         }
3429
3430         commit_reversible_command ();
3431 }
3432
3433 void
3434 Editor::trim_region_to_edit_point ()
3435 {
3436         RegionSelection rs;
3437
3438         get_regions_for_action (rs);
3439
3440         nframes64_t where = get_preferred_edit_position();
3441
3442         begin_reversible_command (_("trim region start to edit point"));
3443
3444         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3445                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3446
3447                 if (!arv) {
3448                         continue;
3449                 }
3450
3451                 /* require region to cover trim */
3452
3453                 if (!arv->region()->covers (where)) {
3454                         continue;
3455                 }
3456
3457                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3458
3459                 if (!atav) {
3460                         return;
3461                 }
3462
3463                 float speed = 1.0;
3464
3465                 if (atav->get_diskstream() != 0) {
3466                         speed = atav->get_diskstream()->speed();
3467                 }
3468
3469                 XMLNode &before = arv->region()->playlist()->get_state();
3470                 arv->region()->trim_end( session_frame_to_track_frame(where, speed), this);
3471                 XMLNode &after = arv->region()->playlist()->get_state();
3472                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3473         }
3474
3475         commit_reversible_command ();
3476 }
3477
3478 void
3479 Editor::trim_region_from_edit_point ()
3480 {
3481         RegionSelection rs;
3482
3483         get_regions_for_action (rs);
3484
3485         nframes64_t where = get_preferred_edit_position();
3486
3487         begin_reversible_command (_("trim region end to edit point"));
3488
3489         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3490                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*x);
3491
3492                 if (!arv) {
3493                         continue;
3494                 }
3495
3496                 /* require region to cover trim */
3497
3498                 if (!arv->region()->covers (where)) {
3499                         continue;
3500                 }
3501
3502                 AudioTimeAxisView* atav = dynamic_cast<AudioTimeAxisView*> (&arv->get_time_axis_view());
3503
3504                 if (!atav) {
3505                         return;
3506                 }
3507
3508                 float speed = 1.0;
3509
3510                 if (atav->get_diskstream() != 0) {
3511                         speed = atav->get_diskstream()->speed();
3512                 }
3513
3514                 XMLNode &before = arv->region()->playlist()->get_state();
3515                 arv->region()->trim_front ( session_frame_to_track_frame(where, speed), this);
3516                 XMLNode &after = arv->region()->playlist()->get_state();
3517                 session->add_command(new MementoCommand<Playlist>(*(arv->region()->playlist()), &before, &after));
3518         }
3519
3520         commit_reversible_command ();
3521 }
3522
3523 void
3524 Editor::unfreeze_route ()
3525 {
3526         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3527                 return;
3528         }
3529
3530         clicked_audio_trackview->audio_track()->unfreeze ();
3531 }
3532
3533 void*
3534 Editor::_freeze_thread (void* arg)
3535 {
3536         PBD::ThreadCreated (pthread_self(), X_("Freeze"));
3537         return static_cast<Editor*>(arg)->freeze_thread ();
3538 }
3539
3540 void*
3541 Editor::freeze_thread ()
3542 {
3543         clicked_audio_trackview->audio_track()->freeze (*current_interthread_info);
3544         return 0;
3545 }
3546
3547 gint
3548 Editor::freeze_progress_timeout (void *arg)
3549 {
3550         interthread_progress_bar.set_fraction (current_interthread_info->progress/100);
3551         return !(current_interthread_info->done || current_interthread_info->cancel);
3552 }
3553
3554 void
3555 Editor::freeze_route ()
3556 {
3557         if (clicked_audio_trackview == 0 || !clicked_audio_trackview->is_audio_track()) {
3558                 return;
3559         }
3560
3561         InterThreadInfo itt;
3562
3563         if (interthread_progress_window == 0) {
3564                 build_interthread_progress_window ();
3565         }
3566
3567         WindowTitle title(Glib::get_application_name());
3568         title += _("Freeze");
3569         interthread_progress_window->set_title (title.get_string());
3570         interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
3571         interthread_progress_window->show_all ();
3572         interthread_progress_bar.set_fraction (0.0f);
3573         interthread_progress_label.set_text ("");
3574         interthread_cancel_label.set_text (_("Cancel Freeze"));
3575         current_interthread_info = &itt;
3576
3577         interthread_progress_connection =
3578           Glib::signal_timeout().connect (bind (mem_fun(*this, &Editor::freeze_progress_timeout), (gpointer) 0), 100);
3579
3580         itt.done = false;
3581         itt.cancel = false;
3582         itt.progress = 0.0f;
3583
3584         pthread_attr_t attr;
3585         pthread_attr_init(&attr);
3586         pthread_attr_setstacksize(&attr, 500000);
3587
3588         pthread_create (&itt.thread, &attr, _freeze_thread, this);
3589
3590         pthread_attr_destroy(&attr);
3591
3592         track_canvas->get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
3593
3594         while (!itt.done && !itt.cancel) {
3595                 gtk_main_iteration ();
3596         }
3597
3598         interthread_progress_connection.disconnect ();
3599         interthread_progress_window->hide_all ();
3600         current_interthread_info = 0;
3601         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
3602 }
3603
3604 void
3605 Editor::bounce_range_selection ()
3606 {
3607         if (selection->time.empty()) {
3608                 return;
3609         }
3610
3611         TrackSelection views = selection->tracks;
3612
3613         nframes64_t start = selection->time[clicked_selection].start;
3614         nframes64_t end = selection->time[clicked_selection].end;
3615         nframes64_t cnt = end - start + 1;
3616
3617         begin_reversible_command (_("bounce range"));
3618
3619         for (TrackViewList::iterator i = views.begin(); i != views.end(); ++i) {
3620
3621                 AudioTimeAxisView* atv;
3622
3623                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*i)) == 0) {
3624                         continue;
3625                 }
3626
3627                 boost::shared_ptr<Playlist> playlist;
3628
3629                 if ((playlist = atv->playlist()) == 0) {
3630                         return;
3631                 }
3632
3633                 InterThreadInfo itt;
3634
3635                 itt.done = false;
3636                 itt.cancel = false;
3637                 itt.progress = false;
3638
3639                 XMLNode &before = playlist->get_state();
3640                 atv->audio_track()->bounce_range (start, cnt, itt);
3641                 XMLNode &after = playlist->get_state();
3642                 session->add_command (new MementoCommand<Playlist> (*playlist, &before, &after));
3643         }
3644
3645         commit_reversible_command ();
3646 }
3647
3648 void
3649 Editor::cut ()
3650 {
3651         cut_copy (Cut);
3652 }
3653
3654 void
3655 Editor::copy ()
3656 {
3657         cut_copy (Copy);
3658 }
3659
3660 void
3661 Editor::cut_copy (CutCopyOp op)
3662 {
3663         /* only cancel selection if cut/copy is successful.*/
3664
3665         string opname;
3666
3667         switch (op) {
3668         case Cut:
3669                 opname = _("cut");
3670                 break;
3671         case Copy:
3672                 opname = _("copy");
3673                 break;
3674         case Clear:
3675                 opname = _("clear");
3676                 break;
3677         }
3678
3679         /* if we're deleting something, and the mouse is still pressed,
3680            the thing we started a drag for will be gone when we release
3681            the mouse button(s). avoid this. see part 2 at the end of
3682            this function.
3683         */
3684
3685         if (op == Cut || op == Clear) {
3686                 if (drag_info.item) {
3687                         drag_info.item->ungrab (0);
3688                         drag_info.item = 0;
3689                 }
3690         }
3691
3692         cut_buffer->clear ();
3693
3694         if (entered_marker) {
3695
3696                 /* cut/delete op while pointing at a marker */
3697
3698                 bool ignored;
3699                 Location* loc = find_location_from_marker (entered_marker, ignored);
3700
3701                 if (session && loc) {
3702                         Glib::signal_idle().connect (bind (mem_fun(*this, &Editor::really_remove_marker), loc));
3703                 }
3704
3705                 break_drag ();
3706
3707                 return;
3708         }
3709
3710         RegionSelection rs;
3711
3712         /* we only want to cut regions if some are selected */
3713
3714         if (!selection->regions.empty()) {
3715                 get_regions_for_action (rs);
3716         }
3717
3718         switch (current_mouse_mode()) {
3719         case MouseObject:
3720                 if (!rs.empty() || !selection->points.empty()) {
3721
3722                         begin_reversible_command (opname + _(" objects"));
3723
3724                         if (!rs.empty()) {
3725                                 cut_copy_regions (op, rs);
3726
3727                                 if (op == Cut) {
3728                                         selection->clear_regions ();
3729                                 }
3730                         }
3731
3732                         if (!selection->points.empty()) {
3733                                 cut_copy_points (op);
3734
3735                                 if (op == Cut) {
3736                                         selection->clear_points ();
3737                                 }
3738                         }
3739
3740                         commit_reversible_command ();
3741                         break; // terminate case statement here
3742                 }
3743                 if (!selection->time.empty()) {
3744                         /* don't cause suprises */
3745                         break;
3746                 }
3747                 // fall thru if there was nothing selected
3748
3749         case MouseRange:
3750                 if (selection->time.empty()) {
3751                         nframes64_t start, end;
3752                         if (!get_edit_op_range (start, end)) {
3753                                 return;
3754                         }
3755                         selection->set ((TimeAxisView*) 0, start, end);
3756                 }
3757
3758                 begin_reversible_command (opname + _(" range"));
3759                 cut_copy_ranges (op);
3760                 commit_reversible_command ();
3761
3762                 if (op == Cut) {
3763                         selection->clear_time ();
3764                 }
3765
3766                 break;
3767
3768         default:
3769                 break;
3770         }
3771
3772
3773         if (op == Cut || op == Clear) {
3774                 break_drag ();
3775         }
3776 }
3777
3778 void
3779 Editor::cut_copy_points (CutCopyOp op)
3780 {
3781         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
3782
3783                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
3784
3785                 if (atv) {
3786                         atv->cut_copy_clear_objects (selection->points, op);
3787                 }
3788         }
3789 }
3790
3791 struct PlaylistState {
3792     boost::shared_ptr<Playlist> playlist;
3793     XMLNode*  before;
3794 };
3795
3796 struct lt_playlist {
3797     bool operator () (const PlaylistState& a, const PlaylistState& b) {
3798             return a.playlist < b.playlist;
3799     }
3800 };
3801
3802 struct PlaylistMapping {
3803     TimeAxisView* tv;
3804     boost::shared_ptr<AudioPlaylist> pl;
3805
3806     PlaylistMapping (TimeAxisView* tvp) : tv (tvp) {}
3807 };
3808
3809 void
3810 Editor::cut_copy_regions (CutCopyOp op, RegionSelection& rs)
3811 {
3812         /* we can't use a std::map here because the ordering is important, and we can't trivially sort
3813            a map when we want ordered access to both elements. i think.
3814         */
3815
3816         vector<PlaylistMapping> pmap;
3817
3818         nframes64_t first_position = max_frames;
3819
3820         set<PlaylistState, lt_playlist> freezelist;
3821         pair<set<PlaylistState, lt_playlist>::iterator,bool> insert_result;
3822
3823         /* get ordering correct before we cut/copy */
3824
3825         rs.sort_by_position_and_track ();
3826
3827         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
3828
3829                 first_position = min ((nframes64_t) (*x)->region()->position(), first_position);
3830
3831                 if (op == Cut || op == Clear) {
3832                         boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3833
3834                         if (pl) {
3835
3836                                 PlaylistState before;
3837                                 before.playlist = pl;
3838                                 before.before = &pl->get_state();
3839
3840                                 insert_result = freezelist.insert (before);
3841
3842                                 if (insert_result.second) {
3843                                         pl->freeze ();
3844                                 }
3845                         }
3846                 }
3847
3848                 TimeAxisView* tv = &(*x)->get_trackview();
3849                 vector<PlaylistMapping>::iterator z;
3850
3851                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3852                         if ((*z).tv == tv) {
3853                                 break;
3854                         }
3855                 }
3856
3857                 if (z == pmap.end()) {
3858                         pmap.push_back (PlaylistMapping (tv));
3859                 }
3860         }
3861
3862         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ) {
3863
3864                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist>((*x)->region()->playlist());
3865
3866                 if (!pl) {
3867                         /* impossible, but this handles it for the future */
3868                         continue;
3869                 }
3870
3871                 TimeAxisView& tv = (*x)->get_trackview();
3872                 boost::shared_ptr<AudioPlaylist> npl;
3873                 RegionSelection::iterator tmp;
3874
3875                 tmp = x;
3876                 ++tmp;
3877
3878                 vector<PlaylistMapping>::iterator z;
3879
3880                 for (z = pmap.begin(); z != pmap.end(); ++z) {
3881                         if ((*z).tv == &tv) {
3882                                 break;
3883                         }
3884                 }
3885
3886                 assert (z != pmap.end());
3887
3888                 if (!(*z).pl) {
3889                         npl = boost::dynamic_pointer_cast<AudioPlaylist> (PlaylistFactory::create (*session, "cutlist", true));
3890                         npl->freeze();
3891                         (*z).pl = npl;
3892                 } else {
3893                         npl = (*z).pl;
3894                 }
3895
3896                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>((*x)->region());
3897                 boost::shared_ptr<Region> _xx;
3898
3899                 switch (op) {
3900                 case Cut:
3901                         if (!ar) break;
3902
3903                         _xx = RegionFactory::create ((*x)->region());
3904                         npl->add_region (_xx, (*x)->region()->position() - first_position);
3905                         pl->remove_region (((*x)->region()));
3906                         break;
3907
3908                 case Copy:
3909                         if (!ar) break;
3910
3911                         /* copy region before adding, so we're not putting same object into two different playlists */
3912                         npl->add_region (RegionFactory::create ((*x)->region()), (*x)->region()->position() - first_position);
3913                         break;
3914
3915                 case Clear:
3916                         pl->remove_region (((*x)->region()));
3917                         break;
3918                 }
3919
3920                 x = tmp;
3921         }
3922
3923         list<boost::shared_ptr<Playlist> > foo;
3924
3925         /* the pmap is in the same order as the tracks in which selected regions occured */
3926
3927         for (vector<PlaylistMapping>::iterator i = pmap.begin(); i != pmap.end(); ++i) {
3928                 (*i).pl->thaw();
3929                 foo.push_back ((*i).pl);
3930         }
3931
3932
3933         if (!foo.empty()) {
3934                 cut_buffer->set (foo);
3935         }
3936
3937         for (set<PlaylistState, lt_playlist>::iterator pl = freezelist.begin(); pl != freezelist.end(); ++pl) {
3938                 (*pl).playlist->thaw ();
3939                 session->add_command (new MementoCommand<Playlist>(*(*pl).playlist, (*pl).before, &(*pl).playlist->get_state()));
3940         }
3941 }
3942
3943 void
3944 Editor::cut_copy_ranges (CutCopyOp op)
3945 {
3946         TrackSelection* ts;
3947         TrackSelection entered;
3948
3949         if (selection->tracks.empty()) {
3950                 if (!entered_track) {
3951                         return;
3952                 }
3953                 entered.push_back (entered_track);
3954                 ts = &entered;
3955         } else {
3956                 ts = &selection->tracks;
3957         }
3958
3959         for (TrackSelection::iterator i = ts->begin(); i != ts->end(); ++i) {
3960                 (*i)->cut_copy_clear (*selection, op);
3961         }
3962 }
3963
3964 void
3965 Editor::paste (float times)
3966 {
3967         paste_internal (get_preferred_edit_position(), times);
3968 }
3969
3970 void
3971 Editor::mouse_paste ()
3972 {
3973         nframes64_t where;
3974         bool ignored;
3975
3976         if (!mouse_frame (where, ignored)) {
3977                 return;
3978         }
3979
3980         snap_to (where);
3981         paste_internal (where, 1);
3982 }
3983
3984 void
3985 Editor::paste_internal (nframes64_t position, float times)
3986 {
3987         bool commit = false;
3988
3989         if (cut_buffer->empty()) {
3990                 return;
3991         }
3992
3993         if (position == max_frames) {
3994                 position = get_preferred_edit_position();
3995         }
3996
3997         begin_reversible_command (_("paste"));
3998
3999         TrackSelection ts;
4000         TrackSelection::iterator i;
4001         size_t nth;
4002
4003         /* get everything in the correct order */
4004
4005
4006         if (!selection->tracks.empty()) {
4007                 sort_track_selection ();
4008                 ts = selection->tracks;
4009         } else if (entered_track) {
4010                 ts.push_back (entered_track);
4011         }
4012
4013         for (nth = 0, i = ts.begin(); i != ts.end(); ++i, ++nth) {
4014
4015                 /* undo/redo is handled by individual tracks */
4016
4017                 if ((*i)->paste (position, times, *cut_buffer, nth)) {
4018                         commit = true;
4019                 }
4020         }
4021
4022         if (commit) {
4023                 commit_reversible_command ();
4024         }
4025 }
4026
4027 void
4028 Editor::paste_named_selection (float times)
4029 {
4030         TrackSelection::iterator t;
4031
4032         Glib::RefPtr<TreeSelection> selected = named_selection_display.get_selection();
4033
4034         if (selected->count_selected_rows() != 1 || selection->tracks.empty()) {
4035                 return;
4036         }
4037
4038         TreeModel::iterator i = selected->get_selected();
4039         NamedSelection* ns = (*i)[named_selection_columns.selection];
4040
4041         list<boost::shared_ptr<Playlist> >::iterator chunk;
4042         list<boost::shared_ptr<Playlist> >::iterator tmp;
4043
4044         chunk = ns->playlists.begin();
4045
4046         begin_reversible_command (_("paste chunk"));
4047
4048         sort_track_selection ();
4049
4050         for (t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
4051
4052                 AudioTimeAxisView* atv;
4053                 boost::shared_ptr<Playlist> pl;
4054                 boost::shared_ptr<AudioPlaylist> apl;
4055
4056                 if ((atv = dynamic_cast<AudioTimeAxisView*> (*t)) == 0) {
4057                         continue;
4058                 }
4059
4060                 if ((pl = atv->playlist()) == 0) {
4061                         continue;
4062                 }
4063
4064                 if ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) == 0) {
4065                         continue;
4066                 }
4067
4068                 tmp = chunk;
4069                 ++tmp;
4070
4071                 XMLNode &before = apl->get_state();
4072                 apl->paste (*chunk, get_preferred_edit_position(), times);
4073                 session->add_command(new MementoCommand<AudioPlaylist>(*apl, &before, &apl->get_state()));
4074
4075                 if (tmp != ns->playlists.end()) {
4076                         chunk = tmp;
4077                 }
4078         }
4079
4080         commit_reversible_command();
4081 }
4082
4083 void
4084 Editor::duplicate_some_regions (RegionSelection& regions, float times)
4085 {
4086         boost::shared_ptr<Playlist> playlist;
4087         RegionSelection sel = regions; // clear (below) may  clear the argument list if its the current region selection
4088         RegionSelection foo;
4089
4090         begin_reversible_command (_("duplicate region"));
4091
4092         selection->clear_regions ();
4093
4094         for (RegionSelection::iterator i = sel.begin(); i != sel.end(); ++i) {
4095
4096                 boost::shared_ptr<Region> r ((*i)->region());
4097
4098                 TimeAxisView& tv = (*i)->get_time_axis_view();
4099                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (&tv);
4100
4101                 latest_regionviews.clear ();
4102                 sigc::connection c = atv->view()->RegionViewAdded.connect (mem_fun(*this, &Editor::collect_new_region_view));
4103
4104                 playlist = (*i)->region()->playlist();
4105                 XMLNode &before = playlist->get_state();
4106                 playlist->duplicate (r, r->last_frame() + 1, times);
4107                 session->add_command(new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
4108
4109                 c.disconnect ();
4110
4111                 foo.insert (foo.end(), latest_regionviews.begin(), latest_regionviews.end());
4112         }
4113
4114         commit_reversible_command ();
4115
4116         if (!foo.empty()) {
4117                 selection->set (foo);
4118         }
4119 }
4120
4121 void
4122 Editor::duplicate_selection (float times)
4123 {
4124         if (selection->time.empty() || selection->tracks.empty()) {
4125                 return;
4126         }
4127
4128         boost::shared_ptr<Playlist> playlist;
4129         vector<boost::shared_ptr<AudioRegion> > new_regions;
4130         vector<boost::shared_ptr<AudioRegion> >::iterator ri;
4131
4132         create_region_from_selection (new_regions);
4133
4134         if (new_regions.empty()) {
4135                 return;
4136         }
4137
4138         begin_reversible_command (_("duplicate selection"));
4139
4140         ri = new_regions.begin();
4141
4142         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4143                 if ((playlist = (*i)->playlist()) == 0) {
4144                         continue;
4145                 }
4146                 XMLNode &before = playlist->get_state();
4147                 playlist->duplicate (*ri, selection->time[clicked_selection].end, times);
4148                 XMLNode &after = playlist->get_state();
4149                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4150
4151                 ++ri;
4152                 if (ri == new_regions.end()) {
4153                         --ri;
4154                 }
4155         }
4156
4157         commit_reversible_command ();
4158 }
4159
4160 void
4161 Editor::reset_point_selection ()
4162 {
4163         /* reset all selected points to the relevant default value */
4164
4165         for (PointSelection::iterator i = selection->points.begin(); i != selection->points.end(); ++i) {
4166
4167                 AutomationTimeAxisView* atv = dynamic_cast<AutomationTimeAxisView*>(&(*i).track);
4168
4169                 if (atv) {
4170                         atv->reset_objects (selection->points);
4171                 }
4172         }
4173 }
4174
4175 void
4176 Editor::center_playhead ()
4177 {
4178         float page = canvas_width * frames_per_unit;
4179         center_screen_internal (playhead_cursor->current_frame, page);
4180 }
4181
4182 void
4183 Editor::center_edit_point ()
4184 {
4185         float page = canvas_width * frames_per_unit;
4186         center_screen_internal (get_preferred_edit_position(), page);
4187 }
4188
4189 void
4190 Editor::clear_playlist (boost::shared_ptr<Playlist> playlist)
4191 {
4192         begin_reversible_command (_("clear playlist"));
4193         XMLNode &before = playlist->get_state();
4194         playlist->clear ();
4195         XMLNode &after = playlist->get_state();
4196         session->add_command (new MementoCommand<Playlist>(*playlist.get(), &before, &after));
4197         commit_reversible_command ();
4198 }
4199
4200 void
4201 Editor::nudge_track (bool use_edit, bool forwards)
4202 {
4203         boost::shared_ptr<Playlist> playlist;
4204         nframes64_t distance;
4205         nframes64_t next_distance;
4206         nframes64_t start;
4207
4208         if (use_edit) {
4209                 start = get_preferred_edit_position();
4210         } else {
4211                 start = 0;
4212         }
4213
4214         if ((distance = get_nudge_distance (start, next_distance)) == 0) {
4215                 return;
4216         }
4217
4218         if (selection->tracks.empty()) {
4219                 return;
4220         }
4221
4222         begin_reversible_command (_("nudge track"));
4223
4224         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4225
4226                 if ((playlist = (*i)->playlist()) == 0) {
4227                         continue;
4228                 }
4229
4230                 XMLNode &before = playlist->get_state();
4231                 playlist->nudge_after (start, distance, forwards);
4232                 XMLNode &after = playlist->get_state();
4233                 session->add_command (new MementoCommand<Playlist>(*playlist, &before, &after));
4234         }
4235
4236         commit_reversible_command ();
4237 }
4238
4239 void
4240 Editor::remove_last_capture ()
4241 {
4242         vector<string> choices;
4243         string prompt;
4244
4245         if (!session) {
4246                 return;
4247         }
4248
4249         if (Config->get_verify_remove_last_capture()) {
4250                 prompt  = _("Do you really want to destroy the last capture?"
4251                             "\n(This is destructive and cannot be undone)");
4252
4253                 choices.push_back (_("No, do nothing."));
4254                 choices.push_back (_("Yes, destroy it."));
4255
4256                 Gtkmm2ext::Choice prompter (prompt, choices);
4257
4258                 if (prompter.run () == 1) {
4259                         session->remove_last_capture ();
4260                 }
4261
4262         } else {
4263                 session->remove_last_capture();
4264         }
4265 }
4266
4267 void
4268 Editor::normalize_region ()
4269 {
4270         RegionSelection rs;
4271
4272         get_regions_for_action (rs);
4273
4274         if (!session) {
4275                 return;
4276         }
4277
4278         if (rs.empty()) {
4279                 return;
4280         }
4281
4282         begin_reversible_command (_("normalize"));
4283
4284         track_canvas->get_window()->set_cursor (*wait_cursor);
4285         gdk_flush ();
4286
4287         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4288                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4289                 if (!arv)
4290                         continue;
4291                 XMLNode &before = arv->region()->get_state();
4292                 arv->audio_region()->normalize_to (0.0f);
4293                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4294         }
4295
4296         commit_reversible_command ();
4297         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4298 }
4299
4300
4301 void
4302 Editor::denormalize_region ()
4303 {
4304         if (!session) {
4305                 return;
4306         }
4307
4308         RegionSelection rs;
4309
4310         get_regions_for_action (rs);
4311
4312         if (rs.empty()) {
4313                 return;
4314         }
4315
4316         begin_reversible_command ("denormalize");
4317
4318         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4319                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4320                 if (!arv)
4321                         continue;
4322                 XMLNode &before = arv->region()->get_state();
4323                 arv->audio_region()->set_scale_amplitude (1.0f);
4324                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4325         }
4326
4327         commit_reversible_command ();
4328 }
4329
4330 void
4331 Editor::adjust_region_scale_amplitude (bool up)
4332 {
4333         if (!session) {
4334                 return;
4335         }
4336
4337         RegionSelection rs;
4338
4339         get_regions_for_action (rs);
4340
4341         if (rs.empty()) {
4342                 return;
4343         }
4344
4345         begin_reversible_command ("denormalize");
4346
4347         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
4348                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4349                 if (!arv)
4350                         continue;
4351                 XMLNode &before = arv->region()->get_state();
4352
4353                 double fraction = gain_to_slider_position (arv->audio_region()->scale_amplitude ());
4354
4355                 if (up) {
4356                         fraction += 0.05;
4357                         fraction = min (fraction, 1.0);
4358                 } else {
4359                         fraction -= 0.05;
4360                         fraction = max (fraction, 0.0);
4361                 }
4362
4363                 if (!up && fraction <= 0) {
4364                         continue;
4365                 }
4366
4367                 fraction = slider_position_to_gain (fraction);
4368                 fraction = coefficient_to_dB (fraction);
4369                 fraction = dB_to_coefficient (fraction);
4370
4371                 if (up && fraction >= 2.0) {
4372                         continue;
4373                 }
4374
4375                 arv->audio_region()->set_scale_amplitude (fraction);
4376                 session->add_command (new MementoCommand<Region>(*(arv->region().get()), &before, &arv->region()->get_state()));
4377         }
4378
4379         commit_reversible_command ();
4380 }
4381
4382
4383 void
4384 Editor::reverse_region ()
4385 {
4386         if (!session) {
4387                 return;
4388         }
4389
4390         Reverse rev (*session);
4391         apply_filter (rev, _("reverse regions"));
4392 }
4393
4394 void
4395 Editor::apply_filter (AudioFilter& filter, string command)
4396 {
4397         RegionSelection rs;
4398
4399         get_regions_for_action (rs);
4400
4401         if (rs.empty()) {
4402                 return;
4403         }
4404
4405         begin_reversible_command (command);
4406
4407         track_canvas->get_window()->set_cursor (*wait_cursor);
4408         gdk_flush ();
4409
4410         for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ) {
4411                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*r);
4412                 if (!arv)
4413                         continue;
4414
4415                 boost::shared_ptr<Playlist> playlist = arv->region()->playlist();
4416
4417                 RegionSelection::iterator tmp;
4418
4419                 tmp = r;
4420                 ++tmp;
4421
4422                 if (arv->audio_region()->apply (filter) == 0) {
4423
4424                         XMLNode &before = playlist->get_state();
4425                         playlist->replace_region (arv->region(), filter.results.front(), arv->region()->position());
4426                         XMLNode &after = playlist->get_state();
4427                         session->add_command(new MementoCommand<Playlist>(*playlist, &before, &after));
4428                 } else {
4429                         goto out;
4430                 }
4431
4432                 r = tmp;
4433         }
4434
4435         commit_reversible_command ();
4436         rs.clear ();
4437
4438   out:
4439         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
4440 }
4441
4442 void
4443 Editor::region_selection_op (void (Region::*pmf)(void))
4444 {
4445         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4446                 Region* region = (*i)->region().get();
4447                 (region->*pmf)();
4448         }
4449 }
4450
4451
4452 void
4453 Editor::region_selection_op (void (Region::*pmf)(void*), void *arg)
4454 {
4455         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4456                 Region* region = (*i)->region().get();
4457                 (region->*pmf)(arg);
4458         }
4459 }
4460
4461 void
4462 Editor::region_selection_op (void (Region::*pmf)(bool), bool yn)
4463 {
4464         for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
4465                 Region* region = (*i)->region().get();
4466                 (region->*pmf)(yn);
4467         }
4468 }
4469
4470 void
4471 Editor::external_edit_region ()
4472 {
4473         if (!clicked_regionview) {
4474                 return;
4475         }
4476
4477         /* more to come */
4478 }
4479
4480 void
4481 Editor::brush (nframes64_t pos)
4482 {
4483         RegionSelection sel;
4484         RegionSelection rs;
4485
4486         get_regions_for_action (rs);
4487
4488         snap_to (pos);
4489
4490         if (rs.empty()) {
4491                 return;
4492         }
4493
4494         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4495                 mouse_brush_insert_region ((*i), pos);
4496         }
4497 }
4498
4499 void
4500 Editor::reset_region_gain_envelopes ()
4501 {
4502         RegionSelection rs;
4503
4504         get_regions_for_action (rs);
4505
4506         if (!session || rs.empty()) {
4507                 return;
4508         }
4509
4510         session->begin_reversible_command (_("reset region gain"));
4511
4512         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4513                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4514                 if (arv) {
4515                         AutomationList& alist (arv->audio_region()->envelope());
4516                         XMLNode& before (alist.get_state());
4517
4518                         arv->audio_region()->set_default_envelope ();
4519                         session->add_command (new MementoCommand<AutomationList>(arv->audio_region()->envelope(), &before, &alist.get_state()));
4520                 }
4521         }
4522
4523         session->commit_reversible_command ();
4524 }
4525
4526 void
4527 Editor::toggle_gain_envelope_visibility ()
4528 {
4529         RegionSelection rs;
4530
4531         get_regions_for_action (rs);
4532
4533         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4534                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4535                 if (arv) {
4536                         arv->set_envelope_visible (!arv->envelope_visible());
4537                 }
4538         }
4539 }
4540
4541 void
4542 Editor::toggle_gain_envelope_active ()
4543 {
4544         RegionSelection rs;
4545
4546         get_regions_for_action (rs);
4547
4548         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4549                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4550                 if (arv) {
4551                         arv->audio_region()->set_envelope_active (!arv->audio_region()->envelope_active());
4552                 }
4553         }
4554 }
4555
4556 void
4557 Editor::toggle_region_lock ()
4558 {
4559         RegionSelection rs;
4560
4561         get_regions_for_action (rs);
4562
4563         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4564                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4565                 if (arv) {
4566                         arv->audio_region()->set_locked (!arv->audio_region()->locked());
4567                 }
4568         }
4569 }
4570
4571 void
4572 Editor::set_region_lock_style (Region::PositionLockStyle ps)
4573 {
4574         RegionSelection rs;
4575
4576         get_regions_for_action (rs);
4577
4578         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4579                 (*i)->region()->set_position_lock_style (ps);
4580         }
4581 }
4582
4583
4584 void
4585 Editor::toggle_region_mute ()
4586 {
4587         RegionSelection rs;
4588
4589         get_regions_for_action (rs);
4590
4591         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4592                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4593                 if (arv) {
4594                         arv->audio_region()->set_muted (!arv->audio_region()->muted());
4595                 }
4596         }
4597 }
4598
4599 void
4600 Editor::toggle_region_opaque ()
4601 {
4602         RegionSelection rs;
4603
4604         get_regions_for_action (rs);
4605
4606         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
4607                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
4608                 if (arv) {
4609                         arv->audio_region()->set_opaque (!arv->audio_region()->opaque());
4610                 }
4611         }
4612 }
4613
4614 void
4615 Editor::set_fade_length (bool in)
4616 {
4617         RegionSelection rs;
4618
4619         get_regions_for_action (rs);
4620
4621         /* we need a region to measure the offset from the start */
4622
4623         RegionView* rv;
4624
4625         if (!rs.empty()) {
4626                 rv = rs.front();
4627         } else if (entered_regionview) {
4628                 rv = entered_regionview;
4629         } else {
4630                 return;
4631         }
4632
4633         nframes64_t pos = get_preferred_edit_position();
4634         nframes64_t len;
4635         char* cmd;
4636
4637         if (pos > rv->region()->last_frame() || pos < rv->region()->first_frame()) {
4638                 /* edit point is outside the relevant region */
4639                 return;
4640         }
4641
4642         if (in) {
4643                 if (pos <= rv->region()->position()) {
4644                         /* can't do it */
4645                         return;
4646                 }
4647                 len = pos - rv->region()->position();
4648                 cmd = _("set fade in length");
4649         } else {
4650                 if (pos >= rv->region()->last_frame()) {
4651                         /* can't do it */
4652                         return;
4653                 }
4654                 len = rv->region()->last_frame() - pos;
4655                 cmd = _("set fade out length");
4656         }
4657
4658         begin_reversible_command (cmd);
4659
4660         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4661                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4662
4663                 if (!tmp) {
4664                         return;
4665                 }
4666
4667                 AutomationList* alist;
4668                 if (in) {
4669                         alist = &tmp->audio_region()->fade_in();
4670                 } else {
4671                         alist = &tmp->audio_region()->fade_out();
4672                 }
4673
4674                 XMLNode &before = alist->get_state();
4675
4676                 if (in) {
4677                         tmp->audio_region()->set_fade_in_length (len);
4678                         tmp->audio_region()->set_fade_in_active (true);
4679                 } else {
4680                         tmp->audio_region()->set_fade_out_length (len);
4681                         tmp->audio_region()->set_fade_out_active (true);
4682                 }
4683
4684                 XMLNode &after = alist->get_state();
4685                 session->add_command(new MementoCommand<AutomationList>(*alist, &before, &after));
4686         }
4687
4688         commit_reversible_command ();
4689 }
4690
4691
4692 void
4693 Editor::toggle_fade_active (bool in)
4694 {
4695         RegionSelection rs;
4696
4697         get_regions_for_action (rs);
4698
4699         if (rs.empty()) {
4700                 return;
4701         }
4702
4703         const char* cmd = (in ? _("toggle fade in active") : _("toggle fade out active"));
4704         bool have_switch = false;
4705         bool yn;
4706
4707         begin_reversible_command (cmd);
4708
4709         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4710                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4711
4712                 if (!tmp) {
4713                         return;
4714                 }
4715
4716                 boost::shared_ptr<AudioRegion> region (tmp->audio_region());
4717
4718                 /* make the behaviour consistent across all regions */
4719
4720                 if (!have_switch) {
4721                         if (in) {
4722                                 yn = region->fade_in_active();
4723                         } else {
4724                                 yn = region->fade_out_active();
4725                         }
4726                         have_switch = true;
4727                 }
4728
4729                 XMLNode &before = region->get_state();
4730                 if (in) {
4731                         region->set_fade_in_active (!yn);
4732                 } else {
4733                         region->set_fade_out_active (!yn);
4734                 }
4735                 XMLNode &after = region->get_state();
4736                 session->add_command(new MementoCommand<AudioRegion>(*region.get(), &before, &after));
4737         }
4738
4739         commit_reversible_command ();
4740 }
4741
4742 void
4743 Editor::set_fade_in_shape (AudioRegion::FadeShape shape)
4744 {
4745         RegionSelection rs;
4746
4747         get_regions_for_action (rs);
4748
4749         if (rs.empty()) {
4750                 return;
4751         }
4752
4753         begin_reversible_command (_("set fade in shape"));
4754
4755         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4756                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4757
4758                 if (!tmp) {
4759                         return;
4760                 }
4761
4762                 AutomationList& alist = tmp->audio_region()->fade_in();
4763                 XMLNode &before = alist.get_state();
4764
4765                 tmp->audio_region()->set_fade_in_shape (shape);
4766
4767                 XMLNode &after = alist.get_state();
4768                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4769         }
4770
4771         commit_reversible_command ();
4772
4773 }
4774
4775 void
4776 Editor::set_fade_out_shape (AudioRegion::FadeShape shape)
4777 {
4778         RegionSelection rs;
4779
4780         get_regions_for_action (rs);
4781
4782         if (rs.empty()) {
4783                 return;
4784         }
4785
4786         begin_reversible_command (_("set fade out shape"));
4787
4788         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4789                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4790
4791                 if (!tmp) {
4792                         return;
4793                 }
4794
4795                 AutomationList& alist = tmp->audio_region()->fade_out();
4796                 XMLNode &before = alist.get_state();
4797
4798                 tmp->audio_region()->set_fade_out_shape (shape);
4799
4800                 XMLNode &after = alist.get_state();
4801                 session->add_command(new MementoCommand<AutomationList>(alist, &before, &after));
4802         }
4803
4804         commit_reversible_command ();
4805 }
4806
4807 void
4808 Editor::set_fade_in_active (bool yn)
4809 {
4810         RegionSelection rs;
4811
4812         get_regions_for_action (rs);
4813
4814         if (rs.empty()) {
4815                 return;
4816         }
4817
4818         begin_reversible_command (_("set fade in active"));
4819
4820         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4821                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4822
4823                 if (!tmp) {
4824                         return;
4825                 }
4826
4827
4828                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4829
4830                 XMLNode &before = ar->get_state();
4831
4832                 ar->set_fade_in_active (yn);
4833
4834                 XMLNode &after = ar->get_state();
4835                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4836         }
4837
4838         commit_reversible_command ();
4839 }
4840
4841 void
4842 Editor::set_fade_out_active (bool yn)
4843 {
4844         RegionSelection rs;
4845
4846         get_regions_for_action (rs);
4847
4848         if (rs.empty()) {
4849                 return;
4850         }
4851
4852         begin_reversible_command (_("set fade out active"));
4853
4854         for (RegionSelection::iterator x = rs.begin(); x != rs.end(); ++x) {
4855                 AudioRegionView* tmp = dynamic_cast<AudioRegionView*> (*x);
4856
4857                 if (!tmp) {
4858                         return;
4859                 }
4860
4861                 boost::shared_ptr<AudioRegion> ar (tmp->audio_region());
4862
4863                 XMLNode &before = ar->get_state();
4864
4865                 ar->set_fade_out_active (yn);
4866
4867                 XMLNode &after = ar->get_state();
4868                 session->add_command(new MementoCommand<AudioRegion>(*ar, &before, &after));
4869         }
4870
4871         commit_reversible_command ();
4872 }
4873
4874
4875 /** Update crossfade visibility after its configuration has been changed */
4876 void
4877 Editor::update_xfade_visibility ()
4878 {
4879         _xfade_visibility = Config->get_xfades_visible ();
4880
4881         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4882                 AudioTimeAxisView* v = dynamic_cast<AudioTimeAxisView*>(*i);
4883                 if (v) {
4884                         if (_xfade_visibility) {
4885                                 v->show_all_xfades ();
4886                         } else {
4887                                 v->hide_all_xfades ();
4888                         }
4889                 }
4890         }
4891 }
4892
4893 void
4894 Editor::set_edit_point ()
4895 {
4896         nframes64_t where;
4897         bool ignored;
4898
4899         if (!mouse_frame (where, ignored)) {
4900                 return;
4901         }
4902
4903         snap_to (where);
4904
4905         if (selection->markers.empty()) {
4906
4907                 mouse_add_new_marker (where);
4908
4909         } else {
4910                 bool ignored;
4911
4912                 Location* loc = find_location_from_marker (selection->markers.front(), ignored);
4913
4914                 if (loc) {
4915                         loc->move_to (where);
4916                 }
4917         }
4918 }
4919
4920 void
4921 Editor::set_playhead_cursor ()
4922 {
4923         if (entered_marker) {
4924                 session->request_locate (entered_marker->position(), session->transport_rolling());
4925         } else {
4926                 nframes64_t where;
4927                 bool ignored;
4928
4929                 if (!mouse_frame (where, ignored)) {
4930                         return;
4931                 }
4932
4933                 snap_to (where);
4934
4935                 if (session) {
4936                         session->request_locate (where, session->transport_rolling());
4937                 }
4938         }
4939 }
4940
4941 void
4942 Editor::split ()
4943 {
4944         RegionSelection rs;
4945
4946         get_regions_for_action (rs);
4947
4948         nframes64_t where = get_preferred_edit_position();
4949
4950         if (rs.empty()) {
4951                 return;
4952         }
4953
4954         split_regions_at (where, rs);
4955 }
4956
4957 void
4958 Editor::ensure_entered_track_selected (bool op_really_wants_one_track_if_none_are_selected)
4959 {
4960         if (entered_track && mouse_mode == MouseObject) {
4961                 if (!selection->tracks.empty()) {
4962                         if (!selection->selected (entered_track)) {
4963                                 selection->add (entered_track);
4964                         }
4965                 } else {
4966                         /* there is no selection, but this operation requires/prefers selected objects */
4967
4968                         if (op_really_wants_one_track_if_none_are_selected) {
4969                                 selection->set (entered_track);
4970                         }
4971                 }
4972         }
4973 }
4974
4975 void
4976 Editor::trim_region_front ()
4977 {
4978         trim_region (true);
4979 }
4980
4981 void
4982 Editor::trim_region_back ()
4983 {
4984         trim_region (false);
4985 }
4986
4987 void
4988 Editor::trim_region (bool front)
4989 {
4990         nframes64_t where = get_preferred_edit_position();
4991         RegionSelection rs;
4992
4993         get_regions_for_action (rs);
4994
4995         if (rs.empty()) {
4996                 return;
4997         }
4998
4999         begin_reversible_command (front ? _("trim front") : _("trim back"));
5000
5001         for (list<RegionView*>::const_iterator i = rs.by_layer().begin(); i != rs.by_layer().end(); ++i) {
5002                 if (!(*i)->region()->locked()) {
5003                         boost::shared_ptr<Playlist> pl = (*i)->region()->playlist();
5004                         XMLNode &before = pl->get_state();
5005                         if (front) {
5006                                 (*i)->region()->trim_front (where, this);
5007                         } else {
5008                                 (*i)->region()->trim_end (where, this);
5009                         }
5010                         XMLNode &after = pl->get_state();
5011                         session->add_command(new MementoCommand<Playlist>(*pl.get(), &before, &after));
5012                 }
5013         }
5014
5015         commit_reversible_command ();
5016 }
5017
5018 struct EditorOrderRouteSorter {
5019     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
5020             /* use of ">" forces the correct sort order */
5021             return a->order_key ("editor") < b->order_key ("editor");
5022     }
5023 };
5024
5025 void
5026 Editor::select_next_route()
5027 {
5028         if (selection->tracks.empty()) {
5029                 selection->set (track_views.front());
5030                 return;
5031         }
5032
5033         TimeAxisView* current = selection->tracks.front();
5034
5035         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5036                 if (*i == current) {
5037                         ++i;
5038                         if (i != track_views.end()) {
5039                                 selection->set (*i);
5040                         } else {
5041                                 selection->set (*(track_views.begin()));
5042                         }
5043                         break;
5044                 }
5045         }
5046 }
5047
5048 void
5049 Editor::select_prev_route()
5050 {
5051         if (selection->tracks.empty()) {
5052                 selection->set (track_views.front());
5053                 return;
5054         }
5055
5056         TimeAxisView* current = selection->tracks.front();
5057
5058         for (TrackViewList::reverse_iterator i = track_views.rbegin(); i != track_views.rend(); ++i) {
5059                 if (*i == current) {
5060                         ++i;
5061                         if (i != track_views.rend()) {
5062                                 selection->set (*i);
5063                         } else {
5064                                 selection->set (*(track_views.rbegin()));
5065                         }
5066                         break;
5067                 }
5068         }
5069 }
5070
5071 void
5072 Editor::set_loop_from_selection (bool play)
5073 {
5074         if (session == 0 || selection->time.empty()) {
5075                 return;
5076         }
5077
5078         nframes64_t start = selection->time[clicked_selection].start;
5079         nframes64_t end = selection->time[clicked_selection].end;
5080
5081         set_loop_range (start, end,  _("set loop range from selection"));
5082
5083         if (play) {
5084                 session->request_play_loop (true);
5085                 session->request_locate (start, true);
5086         }
5087 }
5088
5089 void
5090 Editor::set_loop_from_edit_range (bool play)
5091 {
5092         if (session == 0) {
5093                 return;
5094         }
5095
5096         nframes64_t start;
5097         nframes64_t end;
5098
5099         if (!get_edit_op_range (start, end)) {
5100                 return;
5101         }
5102
5103         set_loop_range (start, end,  _("set loop range from edit range"));
5104
5105         if (play) {
5106                 session->request_play_loop (true);
5107                 session->request_locate (start, true);
5108         }
5109 }
5110
5111 void
5112 Editor::set_loop_from_region (bool play)
5113 {
5114         nframes64_t start = max_frames;
5115         nframes64_t end = 0;
5116
5117         RegionSelection rs;
5118
5119         get_regions_for_action (rs);
5120
5121         if (rs.empty()) {
5122                 return;
5123         }
5124
5125         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5126                 if ((*i)->region()->position() < start) {
5127                         start = (*i)->region()->position();
5128                 }
5129                 if ((*i)->region()->last_frame() + 1 > end) {
5130                         end = (*i)->region()->last_frame() + 1;
5131                 }
5132         }
5133
5134         set_loop_range (start, end, _("set loop range from region"));
5135
5136         if (play) {
5137                 session->request_play_loop (true);
5138                 session->request_locate (start, true);
5139         }
5140 }
5141
5142 void
5143 Editor::set_punch_from_selection ()
5144 {
5145         if (session == 0 || selection->time.empty()) {
5146                 return;
5147         }
5148
5149         nframes64_t start = selection->time[clicked_selection].start;
5150         nframes64_t end = selection->time[clicked_selection].end;
5151
5152         set_punch_range (start, end,  _("set punch range from selection"));
5153 }
5154
5155 void
5156 Editor::set_punch_from_edit_range ()
5157 {
5158         if (session == 0) {
5159                 return;
5160         }
5161
5162         nframes64_t start;
5163         nframes64_t end;
5164
5165         if (!get_edit_op_range (start, end)) {
5166                 return;
5167         }
5168
5169         set_punch_range (start, end,  _("set punch range from edit range"));
5170 }
5171
5172 void
5173 Editor::set_punch_from_region ()
5174 {
5175         nframes64_t start = max_frames;
5176         nframes64_t end = 0;
5177
5178         RegionSelection rs;
5179
5180         get_regions_for_action (rs);
5181
5182         if (rs.empty()) {
5183                 return;
5184         }
5185
5186         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ++i) {
5187                 if ((*i)->region()->position() < start) {
5188                         start = (*i)->region()->position();
5189                 }
5190                 if ((*i)->region()->last_frame() + 1 > end) {
5191                         end = (*i)->region()->last_frame() + 1;
5192                 }
5193         }
5194
5195         set_punch_range (start, end, _("set punch range from region"));
5196 }
5197
5198 void
5199 Editor::pitch_shift_regions ()
5200 {
5201         RegionSelection rs;
5202
5203         get_regions_for_action (rs);
5204
5205         if (rs.empty()) {
5206                 return;
5207         }
5208
5209         pitch_shift (rs, 1.2);
5210 }
5211
5212 void
5213 Editor::use_region_as_bar ()
5214 {
5215         if (!session) {
5216                 return;
5217         }
5218
5219         RegionSelection rs;
5220
5221         get_regions_for_action (rs);
5222
5223         if (rs.empty()) {
5224                 return;
5225         }
5226
5227         RegionView* rv = rs.front();
5228
5229         define_one_bar (rv->region()->position(), rv->region()->last_frame() + 1);
5230 }
5231
5232 void
5233 Editor::use_range_as_bar ()
5234 {
5235         nframes64_t start, end;
5236         if (get_edit_op_range (start, end)) {
5237                 define_one_bar (start, end);
5238         }
5239 }
5240
5241 void
5242 Editor::define_one_bar (nframes64_t start, nframes64_t end)
5243 {
5244         nframes64_t length = end - start;
5245
5246         const Meter& m (session->tempo_map().meter_at (start));
5247
5248         /* length = 1 bar */
5249
5250         /* now we want frames per beat.
5251            we have frames per bar, and beats per bar, so ...
5252         */
5253
5254         double frames_per_beat = length / m.beats_per_bar();
5255
5256         /* beats per minute = */
5257
5258         double beats_per_minute = (session->frame_rate() * 60.0) / frames_per_beat;
5259
5260         /* now decide whether to:
5261
5262             (a) set global tempo
5263             (b) add a new tempo marker
5264
5265         */
5266
5267         const TempoSection& t (session->tempo_map().tempo_section_at (start));
5268
5269         bool do_global = false;
5270
5271         if ((session->tempo_map().n_tempos() == 1) && (session->tempo_map().n_meters() == 1)) {
5272
5273                 /* only 1 tempo & 1 meter: ask if the user wants to set the tempo
5274                    at the start, or create a new marker
5275                 */
5276
5277                 vector<string> options;
5278                 options.push_back (_("Cancel"));
5279                 options.push_back (_("Add new marker"));
5280                 options.push_back (_("Set global tempo"));
5281                 Choice c (_("Do you want to set the global tempo or add new tempo marker?"),
5282                           options);
5283                 c.set_default_response (2);
5284
5285                 switch (c.run()) {
5286                 case 0:
5287                         return;
5288
5289                 case 2:
5290                         do_global = true;
5291                         break;
5292
5293                 default:
5294                         do_global = false;
5295                 }
5296
5297         } else {
5298
5299                 /* more than 1 tempo and/or meter section already, go ahead do the "usual":
5300                    if the marker is at the region starter, change it, otherwise add
5301                    a new tempo marker
5302                 */
5303         }
5304
5305         begin_reversible_command (_("set tempo from region"));
5306         XMLNode& before (session->tempo_map().get_state());
5307
5308         if (do_global) {
5309                 session->tempo_map().change_initial_tempo (beats_per_minute, t.note_type());
5310         } else if (t.frame() == start) {
5311                 session->tempo_map().change_existing_tempo_at (start, beats_per_minute, t.note_type());
5312         } else {
5313                 session->tempo_map().add_tempo (Tempo (beats_per_minute, t.note_type()), start);
5314         }
5315
5316         XMLNode& after (session->tempo_map().get_state());
5317
5318         session->add_command (new MementoCommand<TempoMap>(session->tempo_map(), &before, &after));
5319         commit_reversible_command ();
5320 }
5321
5322 void
5323 Editor::split_region_at_transients ()
5324 {
5325         AnalysisFeatureList positions;
5326
5327         if (!session) {
5328                 return;
5329         }
5330
5331         RegionSelection rs;
5332
5333         get_regions_for_action (rs);
5334
5335         if (rs.empty()) {
5336                 return;
5337         }
5338
5339         session->begin_reversible_command (_("split regions"));
5340
5341         for (RegionSelection::iterator i = rs.begin(); i != rs.end(); ) {
5342
5343                 RegionSelection::iterator tmp;
5344
5345                 tmp = i;
5346                 ++tmp;
5347
5348                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> ((*i)->region());
5349
5350                 if (ar && (ar->get_transients (positions) == 0)) {
5351                         split_region_at_points ((*i)->region(), positions, true);
5352                         positions.clear ();
5353                 }
5354
5355                 i = tmp;
5356         }
5357
5358         session->commit_reversible_command ();
5359
5360 }
5361
5362 void
5363 Editor::split_region_at_points (boost::shared_ptr<Region> r, AnalysisFeatureList& positions, bool can_ferret)
5364 {
5365         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (r);
5366         bool use_rhythmic_rodent = false;
5367
5368         if (!ar) {
5369                 return;
5370         }
5371
5372         boost::shared_ptr<Playlist> pl = ar->playlist();
5373
5374         if (!pl) {
5375                 return;
5376         }
5377
5378         if (positions.empty()) {
5379                 return;
5380         }
5381
5382
5383         if (positions.size() > 20) {
5384                 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);
5385                 MessageDialog msg (msgstr,
5386                                    false,
5387                                    Gtk::MESSAGE_INFO,
5388                                    Gtk::BUTTONS_OK_CANCEL);
5389
5390                 if (can_ferret) {
5391                         msg.add_button (_("Call for the Ferret!"), RESPONSE_APPLY);
5392                         msg.set_secondary_text (_("Press OK to continue with this split operation\nor ask the Ferret dialog to tune the analysis"));
5393                 } else {
5394                         msg.set_secondary_text (_("Press OK to continue with this split operation"));
5395                 }
5396
5397                 msg.set_title (_("Excessive split?"));
5398                 msg.present ();
5399
5400                 int response = msg.run();
5401                 msg.hide ();
5402                 switch (response) {
5403                 case RESPONSE_OK:
5404                         break;
5405                 case RESPONSE_APPLY:
5406                         use_rhythmic_rodent = true;
5407                         break;
5408                 default:
5409                         return;
5410                 }
5411         }
5412
5413         if (use_rhythmic_rodent) {
5414                 show_rhythm_ferret ();
5415                 return;
5416         }
5417
5418         AnalysisFeatureList::const_iterator x;
5419
5420         nframes64_t pos = ar->position();
5421
5422         XMLNode& before (pl->get_state());
5423
5424         x = positions.begin();
5425
5426         while (x != positions.end()) {
5427                 if ((*x) > pos) {
5428                         break;
5429                 }
5430                 ++x;
5431         }
5432
5433         if (x == positions.end()) {
5434                 return;
5435         }
5436
5437         pl->freeze ();
5438         pl->remove_region (ar);
5439
5440         while (x != positions.end()) {
5441
5442                 /* file start = original start + how far we from the initial position ?
5443                  */
5444
5445                 nframes64_t file_start = ar->start() + (pos - ar->position());
5446
5447                 /* length = next position - current position
5448                  */
5449
5450                 nframes64_t len = (*x) - pos;
5451
5452                 /* XXX we do we really want to allow even single-sample regions?
5453                    shouldn't we have some kind of lower limit on region size?
5454                 */
5455
5456                 if (len <= 0) {
5457                         break;
5458                 }
5459
5460                 string new_name;
5461
5462                 if (session->region_name (new_name, ar->name())) {
5463                         break;
5464                 }
5465
5466                 /* do NOT announce new regions 1 by one, just wait till they are all done */
5467
5468                 boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags, false);
5469                 pl->add_region (r, pos);
5470
5471                 pos += len;
5472                 ++x;
5473
5474                 if (*x > ar->last_frame()) {
5475
5476                         /* add final fragment */
5477
5478                         file_start = ar->start() + (pos - ar->position());
5479                         len = ar->last_frame() - pos;
5480
5481                         boost::shared_ptr<Region> r = RegionFactory::create (ar->get_sources(), file_start, len, new_name, 0, Region::DefaultFlags);
5482                         pl->add_region (r, pos);
5483
5484                         break;
5485                 }
5486         }
5487
5488         pl->thaw ();
5489
5490         XMLNode& after (pl->get_state());
5491
5492         session->add_command (new MementoCommand<Playlist>(*pl, &before, &after));
5493 }
5494
5495 void
5496 Editor::tab_to_transient (bool forward)
5497 {
5498         AnalysisFeatureList positions;
5499
5500         if (!session) {
5501                 return;
5502         }
5503
5504         nframes64_t pos = session->audible_frame ();
5505
5506         if (!selection->tracks.empty()) {
5507
5508                 for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5509
5510                         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*t);
5511
5512                         if (rtv) {
5513                                 boost::shared_ptr<Diskstream> ds = rtv->get_diskstream();
5514                                 if (ds) {
5515                                         boost::shared_ptr<Playlist> pl = rtv->get_diskstream()->playlist ();
5516                                         if (pl) {
5517                                                 nframes64_t result = pl->find_next_transient (pos, forward ? 1 : -1);
5518
5519                                                 if (result >= 0) {
5520                                                         positions.push_back (result);
5521                                                 }
5522                                         }
5523                                 }
5524                         }
5525                 }
5526
5527         } else {
5528
5529                 RegionSelection rs;
5530
5531                 get_regions_for_action (rs);
5532
5533                 if (rs.empty()) {
5534                         return;
5535                 }
5536
5537                 for (RegionSelection::iterator r = rs.begin(); r != rs.end(); ++r) {
5538                         (*r)->region()->get_transients (positions);
5539                 }
5540         }
5541
5542         TransientDetector::cleanup_transients (positions, session->frame_rate(), 3.0);
5543
5544         if (forward) {
5545                 AnalysisFeatureList::iterator x;
5546
5547                 for (x = positions.begin(); x != positions.end(); ++x) {
5548                         if ((*x) > pos) {
5549                                 break;
5550                         }
5551                 }
5552
5553                 if (x != positions.end ()) {
5554                         session->request_locate (*x);
5555                 }
5556
5557         } else {
5558                 AnalysisFeatureList::reverse_iterator x;
5559
5560                 for (x = positions.rbegin(); x != positions.rend(); ++x) {
5561                         if ((*x) < pos) {
5562                                 break;
5563                         }
5564                 }
5565
5566                 if (x != positions.rend ()) {
5567                         session->request_locate (*x);
5568                 }
5569         }
5570 }
5571
5572 void
5573 Editor::playhead_forward_to_grid ()
5574 {
5575         if (!session) return;
5576         nframes64_t pos = playhead_cursor->current_frame;
5577         if (pos < max_frames - 1) {
5578                 pos += 2;
5579                 snap_to_internal (pos, 1, false);
5580                 session->request_locate (pos);
5581         }
5582 }
5583
5584
5585 void
5586 Editor::playhead_backward_to_grid ()
5587 {
5588         if (!session) return;
5589         nframes64_t pos = playhead_cursor->current_frame;
5590         if (pos > 2) {
5591                 pos -= 2;
5592                 snap_to_internal (pos, -1, false);
5593                 session->request_locate (pos);
5594         }
5595 }
5596
5597 void
5598 Editor::set_track_height (uint32_t h)
5599 {
5600         TrackSelection& ts (selection->tracks);
5601
5602         if (ts.empty()) {
5603                 return;
5604         }
5605
5606         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5607                 (*x)->set_height (h);
5608         }
5609 }
5610
5611 void
5612 Editor::set_track_height_largest ()
5613 {
5614         set_track_height (TimeAxisView::hLargest);
5615 }
5616 void
5617 Editor::set_track_height_large ()
5618 {
5619         set_track_height (TimeAxisView::hLarge);
5620 }
5621 void
5622 Editor::set_track_height_larger ()
5623 {
5624         set_track_height (TimeAxisView::hLarger);
5625 }
5626 void
5627 Editor::set_track_height_normal ()
5628 {
5629         set_track_height (TimeAxisView::hNormal);
5630 }
5631 void
5632 Editor::set_track_height_smaller ()
5633 {
5634         set_track_height (TimeAxisView::hSmaller);
5635 }
5636 void
5637 Editor::set_track_height_small ()
5638 {
5639         set_track_height (TimeAxisView::hSmall);
5640 }
5641
5642 void
5643 Editor::toggle_tracks_active ()
5644 {
5645         TrackSelection& ts (selection->tracks);
5646         bool first = true;
5647         bool target = false;
5648
5649         if (ts.empty()) {
5650                 return;
5651         }
5652
5653         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5654                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*x);
5655
5656                 if (rtv) {
5657                         if (first) {
5658                                 target = !rtv->_route->active();
5659                                 first = false;
5660                         }
5661                         rtv->_route->set_active (target);
5662                 }
5663         }
5664 }
5665
5666 void
5667 Editor::remove_tracks ()
5668 {
5669         TrackSelection& ts (selection->tracks);
5670
5671         if (ts.empty()) {
5672                 return;
5673         }
5674
5675         vector<string> choices;
5676         string prompt;
5677         int ntracks = 0;
5678         int nbusses = 0;
5679         const char* trackstr;
5680         const char* busstr;
5681         vector<boost::shared_ptr<Route> > routes;
5682
5683         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5684                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*x);
5685                 if (rtv) {
5686                         if (rtv->is_track()) {
5687                                 ntracks++;
5688                         } else {
5689                                 nbusses++;
5690                         }
5691                 }
5692                 routes.push_back (rtv->_route);
5693         }
5694
5695         if (ntracks + nbusses == 0) {
5696                 return;
5697         }
5698
5699         if (ntracks > 1) {
5700                 trackstr = _("tracks");
5701         } else {
5702                 trackstr = _("track");
5703         }
5704
5705         if (nbusses > 1) {
5706                 busstr = _("busses");
5707         } else {
5708                 busstr = _("bus");
5709         }
5710
5711         if (ntracks) {
5712                 if (nbusses) {
5713                         prompt  = string_compose (_("Do you really want to remove %1 %2 and %3 %4?\n"
5714                                                     "(You may also lose the playlists associated with the %2)\n\n"
5715                                                     "This action cannot be undone!"),
5716                                                   ntracks, trackstr, nbusses, busstr);
5717                 } else {
5718                         prompt  = string_compose (_("Do you really want to remove %1 %2?\n"
5719                                                     "(You may also lose the playlists associated with the %2)\n\n"
5720                                                     "This action cannot be undone!"),
5721                                                   ntracks, trackstr);
5722                 }
5723         } else if (nbusses) {
5724                 prompt  = string_compose (_("Do you really want to remove %1 %2?"),
5725                                           nbusses, busstr);
5726         }
5727
5728         choices.push_back (_("No, do nothing."));
5729         if (ntracks + nbusses > 1) {
5730                 choices.push_back (_("Yes, remove them."));
5731         } else {
5732                 choices.push_back (_("Yes, remove it."));
5733         }
5734
5735         Choice prompter (prompt, choices);
5736
5737         if (prompter.run () != 1) {
5738                 return;
5739         }
5740
5741         for (vector<boost::shared_ptr<Route> >::iterator x = routes.begin(); x != routes.end(); ++x) {
5742                 session->remove_route (*x);
5743         }
5744 }
5745
5746 void
5747 Editor::set_waveform_scale (WaveformScale ws)
5748 {
5749         TrackSelection& ts (selection->tracks);
5750
5751         if (ts.empty()) {
5752                 return;
5753         }
5754
5755         for (TrackSelection::iterator x = ts.begin(); x != ts.end(); ++x) {
5756                 AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (*x);
5757                 if (atv) {
5758                         atv->set_waveform_scale (ws);
5759                 }
5760         }
5761 }
5762
5763 void
5764 Editor::do_insert_time ()
5765 {
5766         if (selection->tracks.empty()) {
5767                 return;
5768         }
5769
5770         nframes64_t pos = get_preferred_edit_position ();
5771         ArdourDialog d (*this, _("Insert Time"));
5772         VButtonBox button_box;
5773         VBox option_box;
5774         RadioButtonGroup group;
5775         RadioButton leave_button (group, _("Stay in position"));
5776         RadioButton move_button (group, _("Move"));
5777         RadioButton split_button (group, _("Split & Later Section Moves"));
5778         Label intersect_option_label (_("Intersected regions should:"));
5779         CheckButton glue_button (_("Move Glued Regions"));
5780         CheckButton marker_button (_("Move Markers"));
5781         AudioClock clock ("insertTimeClock", true, X_("InsertTimeClock"), true, true, true);
5782         HBox clock_box;
5783
5784         clock.set (0);
5785         clock.set_session (session);
5786         clock.set_bbt_reference (pos);
5787
5788         clock_box.pack_start (clock, false, true);
5789
5790         option_box.set_spacing (6);
5791         option_box.pack_start (intersect_option_label, false, false);
5792         option_box.pack_start (button_box, false, false);
5793         option_box.pack_start (glue_button, false, false);
5794         option_box.pack_start (marker_button, false, false);
5795
5796         button_box.pack_start (leave_button, false, false);
5797         button_box.pack_start (move_button, false, false);
5798         button_box.pack_start (split_button, false, false);
5799
5800         d.get_vbox()->set_border_width (12);
5801         d.get_vbox()->pack_start (clock_box, false, false);
5802         d.get_vbox()->pack_start (option_box, false, false);
5803
5804         leave_button.show ();
5805         move_button.show ();
5806         split_button.show ();
5807         intersect_option_label.show ();
5808         option_box.show ();
5809         button_box.show ();
5810         glue_button.show ();
5811         clock.show_all();
5812         clock_box.show ();
5813         marker_button.show ();
5814
5815         d.add_button (Gtk::Stock::CANCEL, Gtk::RESPONSE_CANCEL);
5816         d.add_button (Gtk::Stock::OK, Gtk::RESPONSE_OK);
5817         d.show ();
5818
5819         int response = d.run ();
5820
5821         if (response != RESPONSE_OK) {
5822                 return;
5823         }
5824
5825         nframes64_t distance = clock.current_duration (pos);
5826
5827         if (distance == 0) {
5828                 return;
5829         }
5830
5831         InsertTimeOption opt;
5832
5833         if (leave_button.get_active()) {
5834                 opt = LeaveIntersected;
5835         } else if (move_button.get_active()) {
5836                 opt = MoveIntersected;
5837         } else {
5838                 opt = SplitIntersected;
5839         }
5840
5841         insert_time (pos, distance, opt, glue_button.get_active(), marker_button.get_active());
5842 }
5843
5844 void
5845 Editor::insert_time (nframes64_t pos, nframes64_t frames, InsertTimeOption opt,
5846                      bool ignore_music_glue, bool markers_too)
5847 {
5848         bool commit = false;
5849
5850         if (Config->get_edit_mode() == Lock) {
5851                 return;
5852         }
5853
5854         begin_reversible_command (_("insert time"));
5855
5856         for (TrackSelection::iterator x = selection->tracks.begin(); x != selection->tracks.end(); ++x) {
5857                 boost::shared_ptr<Playlist> pl = (*x)->playlist();
5858
5859                 if (!pl) {
5860                         continue;
5861                 }
5862
5863                 XMLNode &before = pl->get_state();
5864
5865                 if (opt == SplitIntersected) {
5866                         pl->split (pos);
5867                 }
5868
5869                 pl->shift (pos, frames, (opt == MoveIntersected), ignore_music_glue);
5870
5871                 XMLNode &after = pl->get_state();
5872
5873                 session->add_command (new MementoCommand<Playlist> (*pl, &before, &after));
5874                 commit = true;
5875         }
5876
5877         if (markers_too) {
5878                 bool moved = false;
5879                 XMLNode& before (session->locations()->get_state());
5880                 Locations::LocationList copy (session->locations()->list());
5881
5882                 for (Locations::LocationList::iterator i = copy.begin(); i != copy.end(); ++i) {
5883
5884                         Locations::LocationList::const_iterator tmp;
5885
5886                         if ((*i)->start() >= pos) {
5887                                 (*i)->set_start ((*i)->start() + frames);
5888                                 if (!(*i)->is_mark()) {
5889                                         (*i)->set_end ((*i)->end() + frames);
5890                                 }
5891                                 moved = true;
5892                         }
5893                 }
5894
5895                 if (moved) {
5896                         XMLNode& after (session->locations()->get_state());
5897                         session->add_command (new MementoCommand<Locations>(*session->locations(), &before, &after));
5898                 }
5899         }
5900
5901         if (commit) {
5902                 commit_reversible_command ();
5903         }
5904 }
5905
5906 void
5907 Editor::fit_tracks ()
5908 {
5909         if (selection->tracks.empty()) {
5910                 return;
5911         }
5912
5913         uint32_t child_heights = 0;
5914
5915         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5916
5917                 if (!(*t)->marked_for_display()) {
5918                         continue;
5919                 }
5920
5921                 child_heights += ((*t)->effective_height - (*t)->current_height());
5922         }
5923
5924         uint32_t h = (uint32_t) floor ((canvas_height - child_heights)/selection->tracks.size());
5925         double first_y_pos = DBL_MAX;
5926
5927         undo_visual_stack.push_back (current_visual_state());
5928
5929         for (TrackSelection::iterator t = selection->tracks.begin(); t != selection->tracks.end(); ++t) {
5930                 (*t)->set_height (h);
5931                 first_y_pos = std::min ((*t)->y_position, first_y_pos);
5932         }
5933
5934
5935         vertical_adjustment.set_value (first_y_pos);
5936
5937         redo_visual_stack.push_back (current_visual_state());
5938 }
5939
5940 void
5941 Editor::save_visual_state (uint32_t n)
5942 {
5943         while (visual_states.size() <= n) {
5944                 visual_states.push_back (0);
5945         }
5946
5947         if (visual_states[n] != 0) {
5948                 delete visual_states[n];
5949         }
5950
5951         visual_states[n] = current_visual_state (true);
5952         gdk_beep ();
5953 }
5954
5955 void
5956 Editor::goto_visual_state (uint32_t n)
5957 {
5958         if (visual_states.size() <= n) {
5959                 return;
5960         }
5961
5962         if (visual_states[n] == 0) {
5963                 return;
5964         }
5965
5966         use_visual_state (*visual_states[n]);
5967 }
5968
5969 void
5970 Editor::start_visual_state_op (uint32_t n)
5971 {
5972         cerr << "Start\n";
5973         if (visual_state_op_connection.empty()) {
5974                 cerr << "\tqueue\n";
5975                 visual_state_op_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::end_visual_state_op), n), 1000);
5976         }
5977 }
5978
5979 void
5980 Editor::cancel_visual_state_op (uint32_t n)
5981 {
5982         cerr << "Cancel\n";
5983         if (!visual_state_op_connection.empty()) {
5984                 cerr << "\tgoto\n";
5985                 visual_state_op_connection.disconnect();
5986                 goto_visual_state (n);
5987         }
5988 }
5989
5990 bool
5991 Editor::end_visual_state_op (uint32_t n)
5992 {
5993         visual_state_op_connection.disconnect();
5994         save_visual_state (n);
5995
5996         PopUp* pup = new PopUp (WIN_POS_MOUSE, 1000, true);
5997         char buf[32];
5998         snprintf (buf, sizeof (buf), _("Saved view %u"), n+1);
5999         pup->set_text (buf);
6000         pup->touch();
6001
6002         return false; // do not call again
6003 }