gtk2_ardour/region_view.cc

   1 /*
   2     Copyright (C) 2001-2006 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 <cmath>
  21 #include <cassert>
  22 #include <algorithm>
  23
  24 #include <gtkmm.h>
  25
  26 #include <gtkmm2ext/gtk_ui.h>
  27 #include "pbd/stacktrace.h"
  28
  29 #include "ardour/playlist.h"
  30 #include "ardour/audioregion.h"
  31 #include "ardour/audiosource.h"
  32 #include "ardour/audio_diskstream.h"
  33 #include "ardour/session.h"
  34
  35 #include "ardour_ui.h"
  36 #include "streamview.h"
  37 #include "region_view.h"
  38 #include "automation_region_view.h"
  39 #include "route_time_axis.h"
  40 #include "simplerect.h"
  41 #include "simpleline.h"
  42 #include "waveview.h"
  43 #include "public_editor.h"
  44 #include "region_editor.h"
  45 #include "ghostregion.h"
  46 #include "route_time_axis.h"
  47 #include "utils.h"
  48 #include "rgb_macros.h"
  49 #include "gui_thread.h"
  50
  51 #include "i18n.h"
  52
  53 using namespace std;
  54 using namespace ARDOUR;
  55 using namespace PBD;
  56 using namespace Editing;
  57 using namespace ArdourCanvas;
  58
  59 static const int32_t sync_mark_width = 9;
  60
  61 PBD::Signal1<void,RegionView*> RegionView::RegionViewGoingAway;
  62
  63 RegionView::RegionView (ArdourCanvas::Group*              parent,
  64                         TimeAxisView&                     tv,
  65                         boost::shared_ptr<ARDOUR::Region> r,
  66                         double                            spu,
  67                         Gdk::Color const &                basic_color,
  68                         bool                              automation)
  69         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), false, automation,
  70                             TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
  71                                                           TimeAxisViewItem::ShowNameHighlight| TimeAxisViewItem::ShowFrame))
  72         , _region (r)
  73         , sync_mark(0)
  74         , sync_line(0)
  75         , editor(0)
  76         , current_visible_sync_position(0.0)
  77         , valid(false)
  78         , _enable_display(false)
  79         , _pixel_width(1.0)
  80         , in_destructor(false)
  81         , wait_for_data(false)
  82         , _time_converter(r->session().tempo_map(), r->position())
  83 {
  84         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
  85 }
  86
  87 RegionView::RegionView (const RegionView& other)
  88         : sigc::trackable(other)
  89         , TimeAxisViewItem (other)
  90         , _time_converter(other._time_converter)
  91 {
  92         /* derived concrete type will call init () */
  93
  94         _region = other._region;
  95         current_visible_sync_position = other.current_visible_sync_position;
  96         valid = false;
  97         _pixel_width = other._pixel_width;
  98
  99         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
 100 }
 101
 102 RegionView::RegionView (const RegionView& other, boost::shared_ptr<Region> other_region)
 103         : sigc::trackable(other)
 104         , TimeAxisViewItem (other)
 105         , _time_converter(other._time_converter)
 106 {
 107         /* this is a pseudo-copy constructor used when dragging regions
 108            around on the canvas.
 109         */
 110
 111         /* derived concrete type will call init () */
 112
 113         _region = other_region;
 114         current_visible_sync_position = other.current_visible_sync_position;
 115         valid = false;
 116         _pixel_width = other._pixel_width;
 117
 118         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
 119 }
 120
 121 RegionView::RegionView (ArdourCanvas::Group*         parent,
 122                         TimeAxisView&                tv,
 123                         boost::shared_ptr<ARDOUR::Region> r,
 124                         double                       spu,
 125                         Gdk::Color const &           basic_color,
 126                         bool                         recording,
 127                         TimeAxisViewItem::Visibility visibility)
 128         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), recording, false, visibility)
 129         , _region (r)
 130         , sync_mark(0)
 131         , sync_line(0)
 132         , editor(0)
 133         , current_visible_sync_position(0.0)
 134         , valid(false)
 135         , _enable_display(false)
 136         , _pixel_width(1.0)
 137         , in_destructor(false)
 138         , wait_for_data(false)
 139         , _time_converter(r->session().tempo_map(), r->position())
 140 {
 141 }
 142
 143 void
 144 RegionView::init (Gdk::Color const & basic_color, bool wfd)
 145 {
 146         editor        = 0;
 147         valid         = true;
 148         in_destructor = false;
 149         wait_for_data = wfd;
 150         sync_mark     = 0;
 151         sync_line     = 0;
 152         sync_mark     = 0;
 153         sync_line     = 0;
 154
 155         compute_colors (basic_color);
 156
 157         if (name_highlight) {
 158                 name_highlight->set_data ("regionview", this);
 159                 name_highlight->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
 160
 161                 if (frame_handle_start) {
 162                         frame_handle_start->set_data ("regionview", this);
 163                         frame_handle_start->set_data ("isleft", (void*) 1);
 164                         frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_start, this));
 165                         frame_handle_start->raise_to_top();
 166                 }
 167
 168                 if (frame_handle_end) {
 169                         frame_handle_end->set_data ("regionview", this);
 170                         frame_handle_end->set_data ("isleft", (void*) 0);
 171                         frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_end, this));
 172                         frame_handle_end->raise_to_top();
 173                 }
 174         }
 175
 176         if (name_pixbuf) {
 177                 name_pixbuf->set_data ("regionview", this);
 178                 name_pixbuf->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_event), name_pixbuf, this));
 179         }
 180
 181         if (wfd) {
 182                 _enable_display = true;
 183         }
 184
 185         set_height (trackview.current_height());
 186
 187         _region->PropertyChanged.connect (*this, invalidator (*this), ui_bind (&RegionView::region_changed, this, _1), gui_context());
 188
 189         group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
 190
 191         set_colors ();
 192
 193         ColorsChanged.connect (sigc::mem_fun (*this, &RegionView::color_handler));
 194
 195         /* XXX sync mark drag? */
 196 }
 197
 198 RegionView::~RegionView ()
 199 {
 200         in_destructor = true;
 201
 202         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 203                 delete *g;
 204         }
 205
 206         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 207                 delete *i;
 208         }
 209
 210         delete editor;
 211 }
 212
 213 gint
 214 RegionView::_lock_toggle (ArdourCanvas::Item*, GdkEvent* ev, void* arg)
 215 {
 216         switch (ev->type) {
 217         case GDK_BUTTON_RELEASE:
 218                 static_cast<RegionView*>(arg)->lock_toggle ();
 219                 return TRUE;
 220                 break;
 221         default:
 222                 break;
 223         }
 224         return FALSE;
 225 }
 226
 227 void
 228 RegionView::lock_toggle ()
 229 {
 230         _region->set_locked (!_region->locked());
 231 }
 232
 233 void
 234 RegionView::region_changed (const PropertyChange& what_changed)
 235 {
 236         ENSURE_GUI_THREAD (*this, &RegionView::region_changed, what_changed);
 237
 238         if (what_changed.contains (ARDOUR::bounds_change)) {
 239                 region_resized (what_changed);
 240                 region_sync_changed ();
 241         }
 242         if (what_changed.contains (ARDOUR::Properties::muted)) {
 243                 region_muted ();
 244         }
 245         if (what_changed.contains (ARDOUR::Properties::opaque)) {
 246                 region_opacity ();
 247         }
 248         if (what_changed.contains (ARDOUR::Properties::name)) {
 249                 region_renamed ();
 250         }
 251         if (what_changed.contains (ARDOUR::Properties::sync_position)) {
 252                 region_sync_changed ();
 253         }
 254         if (what_changed.contains (ARDOUR::Properties::locked)) {
 255                 region_locked ();
 256         }
 257 }
 258
 259 void
 260 RegionView::region_locked ()
 261 {
 262         /* name will show locked status */
 263         region_renamed ();
 264 }
 265
 266 void
 267 RegionView::region_resized (const PropertyChange& what_changed)
 268 {
 269         double unit_length;
 270
 271         if (what_changed.contains (ARDOUR::Properties::position)) {
 272                 set_position (_region->position(), 0);
 273                 _time_converter.set_origin_b (_region->position());
 274         }
 275
 276         PropertyChange s_and_l;
 277         s_and_l.add (ARDOUR::Properties::start);
 278         s_and_l.add (ARDOUR::Properties::length);
 279
 280         if (what_changed.contains (s_and_l)) {
 281
 282                 set_duration (_region->length(), 0);
 283
 284                 unit_length = _region->length() / samples_per_unit;
 285
 286                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 287
 288                         (*i)->set_duration (unit_length);
 289
 290                 }
 291         }
 292 }
 293
 294 void
 295 RegionView::reset_width_dependent_items (double pixel_width)
 296 {
 297         TimeAxisViewItem::reset_width_dependent_items (pixel_width);
 298         _pixel_width = pixel_width;
 299 }
 300
 301 void
 302 RegionView::region_muted ()
 303 {
 304         set_frame_color ();
 305         region_renamed ();
 306 }
 307
 308 void
 309 RegionView::region_opacity ()
 310 {
 311         set_frame_color ();
 312 }
 313
 314 void
 315 RegionView::raise_to_top ()
 316 {
 317         _region->raise_to_top ();
 318 }
 319
 320 void
 321 RegionView::lower_to_bottom ()
 322 {
 323         _region->lower_to_bottom ();
 324 }
 325
 326 bool
 327 RegionView::set_position (framepos_t pos, void* /*src*/, double* ignored)
 328 {
 329         double delta;
 330         bool ret;
 331
 332         if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
 333                 return false;
 334         }
 335
 336         if (ignored) {
 337                 *ignored = delta;
 338         }
 339
 340         if (delta) {
 341                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 342                         (*i)->group->move (delta, 0.0);
 343                 }
 344         }
 345
 346         return ret;
 347 }
 348
 349 void
 350 RegionView::set_samples_per_unit (gdouble spu)
 351 {
 352         TimeAxisViewItem::set_samples_per_unit (spu);
 353
 354         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 355                 (*i)->set_samples_per_unit (spu);
 356                 (*i)->set_duration (_region->length() / samples_per_unit);
 357         }
 358
 359         region_sync_changed ();
 360 }
 361
 362 bool
 363 RegionView::set_duration (framecnt_t frames, void *src)
 364 {
 365         if (!TimeAxisViewItem::set_duration (frames, src)) {
 366                 return false;
 367         }
 368
 369         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 370                 (*i)->set_duration (_region->length() / samples_per_unit);
 371         }
 372
 373         return true;
 374 }
 375
 376 void
 377 RegionView::set_colors ()
 378 {
 379         TimeAxisViewItem::set_colors ();
 380
 381         if (sync_mark) {
 382                 sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 383                 sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 384         }
 385 }
 386
 387 void
 388 RegionView::set_frame_color ()
 389 {
 390         if (_region->opaque()) {
 391                 fill_opacity = 130;
 392         } else {
 393                 fill_opacity = 60;
 394         }
 395
 396         TimeAxisViewItem::set_frame_color ();
 397 }
 398
 399 void
 400 RegionView::fake_set_opaque (bool yn)
 401 {
 402        if (yn) {
 403                fill_opacity = 130;
 404        } else {
 405                fill_opacity = 60;
 406        }
 407
 408        set_frame_color ();
 409 }
 410
 411 void
 412 RegionView::show_region_editor ()
 413 {
 414         if (editor == 0) {
 415                 editor = new RegionEditor (trackview.session(), region());
 416         }
 417
 418         editor->present ();
 419         editor->show_all();
 420 }
 421
 422 void
 423 RegionView::hide_region_editor()
 424 {
 425         if (editor) {
 426                 editor->hide_all ();
 427         }
 428 }
 429
 430 std::string
 431 RegionView::make_name () const
 432 {
 433         std::string str;
 434
 435         // XXX nice to have some good icons for this
 436
 437         if (_region->locked()) {
 438                 str += '>';
 439                 str += _region->name();
 440                 str += '<';
 441         } else if (_region->position_locked()) {
 442                 str += '{';
 443                 str += _region->name();
 444                 str += '}';
 445         } else {
 446                 str = _region->name();
 447         }
 448
 449         if (_region->muted()) {
 450                 str = string ("!") + str;
 451         }
 452
 453         return str;
 454 }
 455
 456 void
 457 RegionView::region_renamed ()
 458 {
 459         std::string str = make_name ();
 460
 461         set_item_name (str, this);
 462         set_name_text (str);
 463         reset_width_dependent_items (_pixel_width);
 464 }
 465
 466 void
 467 RegionView::region_sync_changed ()
 468 {
 469         int sync_dir;
 470         nframes_t sync_offset;
 471
 472         sync_offset = _region->sync_offset (sync_dir);
 473
 474         if (sync_offset == 0) {
 475                 /* no need for a sync mark */
 476                 if (sync_mark) {
 477                         sync_mark->hide();
 478                         sync_line->hide ();
 479                 }
 480                 return;
 481         }
 482
 483         if (!sync_mark) {
 484
 485                 /* points set below */
 486
 487                 sync_mark = new ArdourCanvas::Polygon (*group);
 488                 sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 489
 490                 sync_line = new ArdourCanvas::Line (*group);
 491                 sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 492                 sync_line->property_width_pixels() = 1;
 493         }
 494
 495         /* this has to handle both a genuine change of position, a change of samples_per_unit,
 496            and a change in the bounds of the _region->
 497          */
 498
 499         if (sync_offset == 0) {
 500
 501                 /* no sync mark - its the start of the region */
 502
 503                 sync_mark->hide();
 504                 sync_line->hide ();
 505
 506         } else {
 507
 508                 if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > _region->length()))) {
 509
 510                         /* no sync mark - its out of the bounds of the region */
 511
 512                         sync_mark->hide();
 513                         sync_line->hide ();
 514
 515                 } else {
 516
 517                         /* lets do it */
 518
 519                         Points points;
 520
 521                         //points = sync_mark->property_points().get_value();
 522
 523                         double offset = sync_offset / samples_per_unit;
 524                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 525                         points.push_back (Gnome::Art::Point (offset + ((sync_mark_width-1)/2), 1));
 526                         points.push_back (Gnome::Art::Point (offset, sync_mark_width - 1));
 527                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 528                         sync_mark->property_points().set_value (points);
 529                         sync_mark->show ();
 530
 531                         points.clear ();
 532                         points.push_back (Gnome::Art::Point (offset, 0));
 533                         points.push_back (Gnome::Art::Point (offset, trackview.current_height() - NAME_HIGHLIGHT_SIZE));
 534
 535                         sync_line->property_points().set_value (points);
 536                         sync_line->show ();
 537                 }
 538         }
 539 }
 540
 541 void
 542 RegionView::move (double x_delta, double y_delta)
 543 {
 544         if (!_region->can_move() || (x_delta == 0 && y_delta == 0)) {
 545                 return;
 546         }
 547
 548         get_canvas_group()->move (x_delta, y_delta);
 549
 550         /* note: ghosts never leave their tracks so y_delta for them is always zero */
 551
 552         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 553                 (*i)->group->move (x_delta, 0.0);
 554         }
 555 }
 556
 557 void
 558 RegionView::remove_ghost_in (TimeAxisView& tv)
 559 {
 560         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 561                 if (&(*i)->trackview == &tv) {
 562                         delete *i;
 563                         break;
 564                 }
 565         }
 566 }
 567
 568 void
 569 RegionView::remove_ghost (GhostRegion* ghost)
 570 {
 571         if (in_destructor) {
 572                 return;
 573         }
 574
 575         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 576                 if (*i == ghost) {
 577                         ghosts.erase (i);
 578                         break;
 579                 }
 580         }
 581 }
 582
 583 uint32_t
 584 RegionView::get_fill_color ()
 585 {
 586         return fill_color;
 587 }
 588
 589 void
 590 RegionView::set_height (double h)
 591 {
 592         TimeAxisViewItem::set_height(h);
 593
 594         if (sync_line) {
 595                 Points points;
 596                 int sync_dir;
 597                 nframes_t sync_offset;
 598                 sync_offset = _region->sync_offset (sync_dir);
 599                 double offset = sync_offset / samples_per_unit;
 600
 601                 points.push_back (Gnome::Art::Point (offset, 0));
 602                 points.push_back (Gnome::Art::Point (offset, h - NAME_HIGHLIGHT_SIZE));
 603                 sync_line->property_points().set_value (points);
 604         }
 605
 606         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin(); i != _coverage_frames.end(); ++i) {
 607                 (*i)->property_y2() = h + 1;
 608         }
 609 }
 610
 611 /** Remove old coverage frames and make new ones, if we're in a LayerDisplay mode
 612  *  which uses them. */
 613 void
 614 RegionView::update_coverage_frames (LayerDisplay d)
 615 {
 616         /* remove old coverage frames */
 617         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 618                 delete *i;
 619         }
 620
 621         _coverage_frames.clear ();
 622
 623         if (d != Stacked) {
 624                 /* don't do coverage frames unless we're in stacked mode */
 625                 return;
 626         }
 627
 628         boost::shared_ptr<Playlist> pl (_region->playlist ());
 629         if (!pl) {
 630                 return;
 631         }
 632
 633         nframes_t const position = _region->first_frame ();
 634         nframes_t t = position;
 635         nframes_t const end = _region->last_frame ();
 636
 637         ArdourCanvas::SimpleRect* cr = 0;
 638         bool me = false;
 639
 640         uint32_t const color = frame->property_fill_color_rgba ();
 641         uint32_t const base_alpha = UINT_RGBA_A (color);
 642
 643         while (t < end) {
 644
 645                 t++;
 646
 647                 /* is this region is on top at time t? */
 648                 bool const new_me = (pl->top_unmuted_region_at (t) == _region);
 649
 650                 /* finish off any old rect, if required */
 651                 if (cr && me != new_me) {
 652                         cr->property_x2() = trackview.editor().frame_to_pixel (t - position);
 653                 }
 654
 655                 /* start off any new rect, if required */
 656                 if (cr == 0 || me != new_me) {
 657                         cr = new ArdourCanvas::SimpleRect (*group);
 658                         _coverage_frames.push_back (cr);
 659                         cr->property_x1() = trackview.editor().frame_to_pixel (t - position);
 660                         cr->property_y1() = 1;
 661                         cr->property_y2() = _height + 1;
 662                         cr->property_outline_pixels() = 0;
 663                         /* areas that will be played get a lower alpha */
 664                         uint32_t alpha = base_alpha;
 665                         if (new_me) {
 666                                 alpha /= 2;
 667                         }
 668                         cr->property_fill_color_rgba () = UINT_RGBA_CHANGE_A (color, alpha);
 669                 }
 670
 671                 t = pl->find_next_region_boundary (t, 1);
 672                 me = new_me;
 673         }
 674
 675         if (cr) {
 676                 /* finish off the last rectangle */
 677                 cr->property_x2() = trackview.editor().frame_to_pixel (end - position);
 678         }
 679
 680         if (frame_handle_start) {
 681                 frame_handle_start->raise_to_top ();
 682                 frame_handle_end->raise_to_top ();
 683         }
 684 }
 685
 686 void
 687 RegionView::trim_start (framepos_t new_bound, bool no_overlap)
 688 {
 689         if (_region->locked()) {
 690                 return;
 691         }
 692
 693         RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
 694         double const speed = rtv.track()->speed ();
 695
 696         framepos_t const pre_trim_first_frame = _region->first_frame();
 697
 698         _region->trim_front ((framepos_t) (new_bound * speed), this);
 699
 700         if (no_overlap) {
 701                 // Get the next region on the left of this region and shrink/expand it.
 702                 boost::shared_ptr<Playlist> playlist (_region->playlist());
 703                 boost::shared_ptr<Region> region_left = playlist->find_next_region (pre_trim_first_frame, End, 0);
 704
 705                 bool regions_touching = false;
 706
 707                 if (region_left != 0 && (pre_trim_first_frame == region_left->last_frame() + 1)) {
 708                         regions_touching = true;
 709                 }
 710
 711                 // Only trim region on the left if the first frame has gone beyond the left region's last frame.
 712                 if (region_left != 0 && (region_left->last_frame() > _region->first_frame() || regions_touching)) {
 713                         region_left->trim_end (_region->first_frame() - 1, this);
 714                 }
 715         }
 716
 717         region_changed (ARDOUR::bounds_change);
 718 }
 719
 720 void
 721 RegionView::trim_end (framepos_t new_bound, bool no_overlap)
 722 {
 723         if (_region->locked()) {
 724                 return;
 725         }
 726
 727         RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
 728         double const speed = rtv.track()->speed ();
 729
 730         framepos_t const pre_trim_last_frame = _region->last_frame();
 731
 732         _region->trim_end ((framepos_t) (new_bound * speed), this);
 733
 734         if (no_overlap) {
 735                 // Get the next region on the right of this region and shrink/expand it.
 736                 boost::shared_ptr<Playlist> playlist (_region->playlist());
 737                 boost::shared_ptr<Region> region_right = playlist->find_next_region (pre_trim_last_frame, Start, 1);
 738
 739                 bool regions_touching = false;
 740
 741                 if (region_right != 0 && (pre_trim_last_frame == region_right->first_frame() - 1)) {
 742                         regions_touching = true;
 743                 }
 744
 745                 // Only trim region on the right if the last frame has gone beyond the right region's first frame.
 746                 if (region_right != 0 && (region_right->first_frame() < _region->last_frame() || regions_touching)) {
 747                         region_right->trim_front (_region->last_frame() + 1, this);
 748                 }
 749
 750                 region_changed (ARDOUR::bounds_change);
 751
 752         } else {
 753                 region_changed (PropertyChange (ARDOUR::Properties::length));
 754         }
 755 }
 756
 757
 758 void
 759 RegionView::thaw_after_trim ()
 760 {
 761         if (_region->locked()) {
 762                 return;
 763         }
 764
 765         _region->resume_property_changes ();
 766 }
 767
 768
 769 void
 770 RegionView::trim_contents (framepos_t frame_delta, bool left_direction, bool swap_direction)
 771 {
 772         if (_region->locked()) {
 773                 return;
 774         }
 775
 776         framepos_t new_bound;
 777
 778         RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
 779         double const speed = rtv.track()->speed ();
 780
 781         if (left_direction) {
 782                 if (swap_direction) {
 783                         new_bound = (framepos_t) (_region->position() / speed) + frame_delta;
 784                 } else {
 785                         new_bound = (framepos_t) (_region->position() / speed) - frame_delta;
 786                 }
 787         } else {
 788                 if (swap_direction) {
 789                         new_bound = (framepos_t) (_region->position() / speed) - frame_delta;
 790                 } else {
 791                         new_bound = (framepos_t) (_region->position() / speed) + frame_delta;
 792                 }
 793         }
 794
 795         _region->trim_start ((framepos_t) (new_bound * speed), this);
 796         region_changed (PropertyChange (ARDOUR::Properties::start));
 797 }