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
  28 #include "ardour/playlist.h"
  29 #include "ardour/audioregion.h"
  30 #include "ardour/audiosource.h"
  31 #include "ardour/audio_diskstream.h"
  32 #include "ardour/session.h"
  33
  34 #include "ardour_ui.h"
  35 #include "global_signals.h"
  36 #include "canvas-noevent-text.h"
  37 #include "streamview.h"
  38 #include "region_view.h"
  39 #include "automation_region_view.h"
  40 #include "route_time_axis.h"
  41 #include "simplerect.h"
  42 #include "simpleline.h"
  43 #include "waveview.h"
  44 #include "public_editor.h"
  45 #include "region_editor.h"
  46 #include "ghostregion.h"
  47 #include "route_time_axis.h"
  48 #include "ui_config.h"
  49 #include "utils.h"
  50 #include "rgb_macros.h"
  51 #include "gui_thread.h"
  52
  53 #include "i18n.h"
  54
  55 using namespace std;
  56 using namespace ARDOUR;
  57 using namespace PBD;
  58 using namespace Editing;
  59 using namespace Gtk;
  60 using namespace ArdourCanvas;
  61
  62 static const int32_t sync_mark_width = 9;
  63
  64 PBD::Signal1<void,RegionView*> RegionView::RegionViewGoingAway;
  65
  66 RegionView::RegionView (ArdourCanvas::Group*              parent,
  67                         TimeAxisView&                     tv,
  68                         boost::shared_ptr<ARDOUR::Region> r,
  69                         double                            spu,
  70                         Gdk::Color const &                basic_color,
  71                         bool                              automation)
  72         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), false, automation,
  73                             TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowNameText|
  74                                                           TimeAxisViewItem::ShowNameHighlight| TimeAxisViewItem::ShowFrame))
  75         , _region (r)
  76         , sync_mark(0)
  77         , sync_line(0)
  78         , editor(0)
  79         , current_visible_sync_position(0.0)
  80         , valid(false)
  81         , _enable_display(false)
  82         , _pixel_width(1.0)
  83         , in_destructor(false)
  84         , wait_for_data(false)
  85         , _silence_text (0)
  86         , _time_converter(r->session().tempo_map(), r->position())
  87 {
  88         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
  89 }
  90
  91 RegionView::RegionView (const RegionView& other)
  92         : sigc::trackable(other)
  93         , TimeAxisViewItem (other)
  94         , _silence_text (0)
  95         , _time_converter(other._time_converter)
  96 {
  97         /* derived concrete type will call init () */
  98
  99         _region = other._region;
 100         current_visible_sync_position = other.current_visible_sync_position;
 101         valid = false;
 102         _pixel_width = other._pixel_width;
 103
 104         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
 105 }
 106
 107 RegionView::RegionView (const RegionView& other, boost::shared_ptr<Region> other_region)
 108         : sigc::trackable(other)
 109         , TimeAxisViewItem (other)
 110         , _silence_text (0)
 111         , _time_converter(other._time_converter)
 112 {
 113         /* this is a pseudo-copy constructor used when dragging regions
 114            around on the canvas.
 115         */
 116
 117         /* derived concrete type will call init () */
 118
 119         _region = other_region;
 120         current_visible_sync_position = other.current_visible_sync_position;
 121         valid = false;
 122         _pixel_width = other._pixel_width;
 123
 124         GhostRegion::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&RegionView::remove_ghost, this, _1), gui_context());
 125 }
 126
 127 RegionView::RegionView (ArdourCanvas::Group*         parent,
 128                         TimeAxisView&                tv,
 129                         boost::shared_ptr<ARDOUR::Region> r,
 130                         double                       spu,
 131                         Gdk::Color const &           basic_color,
 132                         bool                         recording,
 133                         TimeAxisViewItem::Visibility visibility)
 134         : TimeAxisViewItem (r->name(), *parent, tv, spu, basic_color, r->position(), r->length(), recording, false, visibility)
 135         , _region (r)
 136         , sync_mark(0)
 137         , sync_line(0)
 138         , editor(0)
 139         , current_visible_sync_position(0.0)
 140         , valid(false)
 141         , _enable_display(false)
 142         , _pixel_width(1.0)
 143         , in_destructor(false)
 144         , wait_for_data(false)
 145         , _silence_text (0)
 146         , _time_converter(r->session().tempo_map(), r->position())
 147 {
 148 }
 149
 150 void
 151 RegionView::init (Gdk::Color const & basic_color, bool wfd)
 152 {
 153         editor        = 0;
 154         valid         = true;
 155         in_destructor = false;
 156         wait_for_data = wfd;
 157         sync_mark     = 0;
 158         sync_line     = 0;
 159         sync_mark     = 0;
 160         sync_line     = 0;
 161
 162         compute_colors (basic_color);
 163
 164         if (name_highlight) {
 165                 name_highlight->set_data ("regionview", this);
 166                 name_highlight->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_highlight_event), name_highlight, this));
 167
 168                 if (frame_handle_start) {
 169                         frame_handle_start->set_data ("regionview", this);
 170                         frame_handle_start->set_data ("isleft", (void*) 1);
 171                         frame_handle_start->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_start, this));
 172                         frame_handle_start->raise_to_top();
 173                 }
 174
 175                 if (frame_handle_end) {
 176                         frame_handle_end->set_data ("regionview", this);
 177                         frame_handle_end->set_data ("isleft", (void*) 0);
 178                         frame_handle_end->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_frame_handle_event), frame_handle_end, this));
 179                         frame_handle_end->raise_to_top();
 180                 }
 181         }
 182
 183         if (name_pixbuf) {
 184                 name_pixbuf->set_data ("regionview", this);
 185                 name_pixbuf->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_name_event), name_pixbuf, this));
 186         }
 187
 188         if (wfd) {
 189                 _enable_display = true;
 190         }
 191
 192         set_height (trackview.current_height());
 193
 194         _region->PropertyChanged.connect (*this, invalidator (*this), ui_bind (&RegionView::region_changed, this, _1), gui_context());
 195
 196         group->signal_event().connect (sigc::bind (sigc::mem_fun (PublicEditor::instance(), &PublicEditor::canvas_region_view_event), group, this));
 197
 198         set_colors ();
 199
 200         ColorsChanged.connect (sigc::mem_fun (*this, &RegionView::color_handler));
 201
 202         /* XXX sync mark drag? */
 203 }
 204
 205 RegionView::~RegionView ()
 206 {
 207         in_destructor = true;
 208
 209         for (vector<GhostRegion*>::iterator g = ghosts.begin(); g != ghosts.end(); ++g) {
 210                 delete *g;
 211         }
 212
 213         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 214                 delete *i;
 215         }
 216
 217         drop_silent_frames ();
 218
 219         delete editor;
 220 }
 221
 222 void
 223 RegionView::set_silent_frames (const AudioIntervalResult& silences, double threshold)
 224 {
 225         framecnt_t shortest = max_framecnt;
 226
 227         /* remove old silent frames */
 228         drop_silent_frames ();
 229
 230         if (silences.empty()) {
 231                 return;
 232         }
 233
 234         uint32_t const color = ARDOUR_UI::config()->canvasvar_Silence.get();
 235
 236         for (AudioIntervalResult::const_iterator i = silences.begin(); i != silences.end(); ++i) {
 237
 238                 ArdourCanvas::SimpleRect* cr = new ArdourCanvas::SimpleRect (*group);
 239                 _silent_frames.push_back (cr);
 240
 241                 /* coordinates for the rect are relative to the regionview origin */
 242
 243                 cr->property_x1() = trackview.editor().frame_to_pixel (i->first - _region->start());
 244                 cr->property_x2() = trackview.editor().frame_to_pixel (i->second - _region->start());
 245                 cr->property_y1() = 1;
 246                 cr->property_y2() = _height - 2;
 247                 cr->property_outline_pixels() = 0;
 248                 cr->property_fill_color_rgba () = color;
 249
 250                 shortest = min (shortest, i->second - i->first);
 251         }
 252
 253         /* Find shortest audible segment */
 254         framecnt_t shortest_audible = max_framecnt;
 255
 256         framecnt_t s = _region->start();
 257         for (AudioIntervalResult::const_iterator i = silences.begin(); i != silences.end(); ++i) {
 258                 framecnt_t const dur = i->first - s;
 259                 if (dur > 0) {
 260                         shortest_audible = min (shortest_audible, dur);
 261                 }
 262
 263                 s = i->second;
 264         }
 265
 266         framecnt_t const dur = _region->start() + _region->length() - 1 - s;
 267         if (dur > 0) {
 268                 shortest_audible = min (shortest_audible, dur);
 269         }
 270
 271         _silence_text = new ArdourCanvas::NoEventText (*group);
 272         _silence_text->property_font_desc() = get_font_for_style (N_("SilenceText"));
 273         _silence_text->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_SilenceText.get();
 274         _silence_text->property_anchor() = ANCHOR_NW;
 275
 276         /* both positions are relative to the region start offset in source */
 277
 278         _silence_text->property_x() = trackview.editor().frame_to_pixel (silences.front().first - _region->start()) + 10.0;
 279         _silence_text->property_y() = 20.0;
 280
 281         double ms = (float) shortest/_region->session().frame_rate();
 282
 283         /* ms are now in seconds */
 284
 285         char const * sunits;
 286
 287         if (ms >= 60.0) {
 288                 sunits = _("minutes");
 289                 ms /= 60.0;
 290         } else if (ms < 1.0) {
 291                 sunits = _("msecs");
 292                 ms *= 1000.0;
 293         } else {
 294                 sunits = _("secs");
 295         }
 296
 297         string text = string_compose (ngettext ("%1 silent segment", "%1 silent segments", silences.size()), silences.size())
 298                 + ", "
 299                 + string_compose (_("shortest = %1 %2"), ms, sunits);
 300
 301         if (shortest_audible != max_framepos) {
 302                 /* ms are now in seconds */
 303                 double ma = (float) shortest_audible / _region->session().frame_rate();
 304                 char const * aunits;
 305
 306                 if (ma >= 60.0) {
 307                         aunits = _("minutes");
 308                         ma /= 60.0;
 309                 } else if (ma < 1.0) {
 310                         aunits = _("msecs");
 311                         ma *= 1000.0;
 312                 } else {
 313                         aunits = _("secs");
 314                 }
 315
 316                 text += string_compose (_("\n  (shortest audible segment = %1 %2)"), ma, aunits);
 317         }
 318
 319         _silence_text->property_text() = text.c_str ();
 320 }
 321
 322 void
 323 RegionView::hide_silent_frames ()
 324 {
 325         for (list<ArdourCanvas::SimpleRect*>::iterator i = _silent_frames.begin (); i != _silent_frames.end (); ++i) {
 326                 (*i)->hide ();
 327         }
 328         _silence_text->hide();
 329 }
 330
 331 void
 332 RegionView::drop_silent_frames ()
 333 {
 334         for (list<ArdourCanvas::SimpleRect*>::iterator i = _silent_frames.begin (); i != _silent_frames.end (); ++i) {
 335                 delete *i;
 336         }
 337         _silent_frames.clear ();
 338
 339         delete _silence_text;
 340         _silence_text = 0;
 341 }
 342
 343 gint
 344 RegionView::_lock_toggle (ArdourCanvas::Item*, GdkEvent* ev, void* arg)
 345 {
 346         switch (ev->type) {
 347         case GDK_BUTTON_RELEASE:
 348                 static_cast<RegionView*>(arg)->lock_toggle ();
 349                 return TRUE;
 350                 break;
 351         default:
 352                 break;
 353         }
 354         return FALSE;
 355 }
 356
 357 void
 358 RegionView::lock_toggle ()
 359 {
 360         _region->set_locked (!_region->locked());
 361 }
 362
 363 void
 364 RegionView::region_changed (const PropertyChange& what_changed)
 365 {
 366         ENSURE_GUI_THREAD (*this, &RegionView::region_changed, what_changed);
 367
 368         if (what_changed.contains (ARDOUR::bounds_change)) {
 369                 region_resized (what_changed);
 370                 region_sync_changed ();
 371         }
 372         if (what_changed.contains (ARDOUR::Properties::muted)) {
 373                 region_muted ();
 374         }
 375         if (what_changed.contains (ARDOUR::Properties::opaque)) {
 376                 region_opacity ();
 377         }
 378         if (what_changed.contains (ARDOUR::Properties::name)) {
 379                 region_renamed ();
 380         }
 381         if (what_changed.contains (ARDOUR::Properties::sync_position)) {
 382                 region_sync_changed ();
 383         }
 384         if (what_changed.contains (ARDOUR::Properties::locked)) {
 385                 region_locked ();
 386         }
 387 }
 388
 389 void
 390 RegionView::region_locked ()
 391 {
 392         /* name will show locked status */
 393         region_renamed ();
 394 }
 395
 396 void
 397 RegionView::region_resized (const PropertyChange& what_changed)
 398 {
 399         double unit_length;
 400
 401         if (what_changed.contains (ARDOUR::Properties::position)) {
 402                 set_position (_region->position(), 0);
 403                 _time_converter.set_origin_b (_region->position());
 404         }
 405
 406         PropertyChange s_and_l;
 407         s_and_l.add (ARDOUR::Properties::start);
 408         s_and_l.add (ARDOUR::Properties::length);
 409
 410         if (what_changed.contains (s_and_l)) {
 411
 412                 set_duration (_region->length(), 0);
 413
 414                 unit_length = _region->length() / samples_per_unit;
 415
 416                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 417
 418                         (*i)->set_duration (unit_length);
 419
 420                 }
 421         }
 422 }
 423
 424 void
 425 RegionView::reset_width_dependent_items (double pixel_width)
 426 {
 427         TimeAxisViewItem::reset_width_dependent_items (pixel_width);
 428         _pixel_width = pixel_width;
 429 }
 430
 431 void
 432 RegionView::region_muted ()
 433 {
 434         set_frame_color ();
 435         region_renamed ();
 436 }
 437
 438 void
 439 RegionView::region_opacity ()
 440 {
 441         set_frame_color ();
 442 }
 443
 444 void
 445 RegionView::raise_to_top ()
 446 {
 447         _region->raise_to_top ();
 448 }
 449
 450 void
 451 RegionView::lower_to_bottom ()
 452 {
 453         _region->lower_to_bottom ();
 454 }
 455
 456 bool
 457 RegionView::set_position (framepos_t pos, void* /*src*/, double* ignored)
 458 {
 459         double delta;
 460         bool ret;
 461
 462         if (!(ret = TimeAxisViewItem::set_position (pos, this, &delta))) {
 463                 return false;
 464         }
 465
 466         if (ignored) {
 467                 *ignored = delta;
 468         }
 469
 470         if (delta) {
 471                 for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 472                         (*i)->group->move (delta, 0.0);
 473                 }
 474         }
 475
 476         return ret;
 477 }
 478
 479 void
 480 RegionView::set_samples_per_unit (gdouble spu)
 481 {
 482         TimeAxisViewItem::set_samples_per_unit (spu);
 483
 484         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 485                 (*i)->set_samples_per_unit (spu);
 486                 (*i)->set_duration (_region->length() / samples_per_unit);
 487         }
 488
 489         region_sync_changed ();
 490 }
 491
 492 bool
 493 RegionView::set_duration (framecnt_t frames, void *src)
 494 {
 495         if (!TimeAxisViewItem::set_duration (frames, src)) {
 496                 return false;
 497         }
 498
 499         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 500                 (*i)->set_duration (_region->length() / samples_per_unit);
 501         }
 502
 503         return true;
 504 }
 505
 506 void
 507 RegionView::set_colors ()
 508 {
 509         TimeAxisViewItem::set_colors ();
 510
 511         if (sync_mark) {
 512                 sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 513                 sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 514         }
 515 }
 516
 517 void
 518 RegionView::set_frame_color ()
 519 {
 520         if (_region->opaque()) {
 521                 fill_opacity = 130;
 522         } else {
 523                 fill_opacity = 60;
 524         }
 525
 526         TimeAxisViewItem::set_frame_color ();
 527 }
 528
 529 void
 530 RegionView::fake_set_opaque (bool yn)
 531 {
 532        if (yn) {
 533                fill_opacity = 130;
 534        } else {
 535                fill_opacity = 60;
 536        }
 537
 538        set_frame_color ();
 539 }
 540
 541 void
 542 RegionView::show_region_editor ()
 543 {
 544         if (editor == 0) {
 545                 editor = new RegionEditor (trackview.session(), region());
 546         }
 547
 548         editor->present ();
 549         editor->show_all();
 550 }
 551
 552 void
 553 RegionView::hide_region_editor()
 554 {
 555         if (editor) {
 556                 editor->hide_all ();
 557         }
 558 }
 559
 560 std::string
 561 RegionView::make_name () const
 562 {
 563         std::string str;
 564
 565         // XXX nice to have some good icons for this
 566
 567         if (_region->locked()) {
 568                 str += '>';
 569                 str += _region->name();
 570                 str += '<';
 571         } else if (_region->position_locked()) {
 572                 str += '{';
 573                 str += _region->name();
 574                 str += '}';
 575         } else {
 576                 str = _region->name();
 577         }
 578
 579         if (_region->muted()) {
 580                 str = string ("!") + str;
 581         }
 582
 583         return str;
 584 }
 585
 586 void
 587 RegionView::region_renamed ()
 588 {
 589         std::string str = make_name ();
 590
 591         set_item_name (str, this);
 592         set_name_text (str);
 593         reset_width_dependent_items (_pixel_width);
 594 }
 595
 596 void
 597 RegionView::region_sync_changed ()
 598 {
 599         int sync_dir;
 600         framecnt_t sync_offset;
 601
 602         sync_offset = _region->sync_offset (sync_dir);
 603
 604         if (sync_offset == 0) {
 605                 /* no need for a sync mark */
 606                 if (sync_mark) {
 607                         sync_mark->hide();
 608                         sync_line->hide ();
 609                 }
 610                 return;
 611         }
 612
 613         if (!sync_mark) {
 614
 615                 /* points set below */
 616
 617                 sync_mark = new ArdourCanvas::Polygon (*group);
 618                 sync_mark->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 619
 620                 sync_line = new ArdourCanvas::Line (*group);
 621                 sync_line->property_fill_color_rgba() = RGBA_TO_UINT(0,255,0,255);     // fill_color;                   // FIXME make a themeable colour
 622                 sync_line->property_width_pixels() = 1;
 623         }
 624
 625         /* this has to handle both a genuine change of position, a change of samples_per_unit,
 626            and a change in the bounds of the _region->
 627          */
 628
 629         if (sync_offset == 0) {
 630
 631                 /* no sync mark - its the start of the region */
 632
 633                 sync_mark->hide();
 634                 sync_line->hide ();
 635
 636         } else {
 637
 638                 if ((sync_dir < 0) || ((sync_dir > 0) && (sync_offset > _region->length()))) {
 639
 640                         /* no sync mark - its out of the bounds of the region */
 641
 642                         sync_mark->hide();
 643                         sync_line->hide ();
 644
 645                 } else {
 646
 647                         /* lets do it */
 648
 649                         Points points;
 650
 651                         //points = sync_mark->property_points().get_value();
 652
 653                         double offset = sync_offset / samples_per_unit;
 654                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 655                         points.push_back (Gnome::Art::Point (offset + ((sync_mark_width-1)/2), 1));
 656                         points.push_back (Gnome::Art::Point (offset, sync_mark_width - 1));
 657                         points.push_back (Gnome::Art::Point (offset - ((sync_mark_width-1)/2), 1));
 658                         sync_mark->property_points().set_value (points);
 659                         sync_mark->show ();
 660
 661                         points.clear ();
 662                         points.push_back (Gnome::Art::Point (offset, 0));
 663                         points.push_back (Gnome::Art::Point (offset, trackview.current_height() - NAME_HIGHLIGHT_SIZE));
 664
 665                         sync_line->property_points().set_value (points);
 666                         sync_line->show ();
 667                 }
 668         }
 669 }
 670
 671 void
 672 RegionView::move (double x_delta, double y_delta)
 673 {
 674         if (!_region->can_move() || (x_delta == 0 && y_delta == 0)) {
 675                 return;
 676         }
 677
 678         get_canvas_group()->move (x_delta, y_delta);
 679
 680         /* note: ghosts never leave their tracks so y_delta for them is always zero */
 681
 682         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 683                 (*i)->group->move (x_delta, 0.0);
 684         }
 685 }
 686
 687 void
 688 RegionView::remove_ghost_in (TimeAxisView& tv)
 689 {
 690         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 691                 if (&(*i)->trackview == &tv) {
 692                         delete *i;
 693                         break;
 694                 }
 695         }
 696 }
 697
 698 void
 699 RegionView::remove_ghost (GhostRegion* ghost)
 700 {
 701         if (in_destructor) {
 702                 return;
 703         }
 704
 705         for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) {
 706                 if (*i == ghost) {
 707                         ghosts.erase (i);
 708                         break;
 709                 }
 710         }
 711 }
 712
 713 uint32_t
 714 RegionView::get_fill_color ()
 715 {
 716         return fill_color;
 717 }
 718
 719 void
 720 RegionView::set_height (double h)
 721 {
 722         TimeAxisViewItem::set_height(h);
 723
 724         if (sync_line) {
 725                 Points points;
 726                 int sync_dir;
 727                 framecnt_t sync_offset;
 728                 sync_offset = _region->sync_offset (sync_dir);
 729                 double offset = sync_offset / samples_per_unit;
 730
 731                 points.push_back (Gnome::Art::Point (offset, 0));
 732                 points.push_back (Gnome::Art::Point (offset, h - NAME_HIGHLIGHT_SIZE));
 733                 sync_line->property_points().set_value (points);
 734         }
 735
 736         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin(); i != _coverage_frames.end(); ++i) {
 737                 (*i)->property_y2() = h + 1;
 738         }
 739
 740         for (list<ArdourCanvas::SimpleRect*>::iterator i = _silent_frames.begin(); i != _silent_frames.end(); ++i) {
 741                 (*i)->property_y2() = h + 1;
 742         }
 743
 744 }
 745
 746 /** Remove old coverage frames and make new ones, if we're in a LayerDisplay mode
 747  *  which uses them. */
 748 void
 749 RegionView::update_coverage_frames (LayerDisplay d)
 750 {
 751         /* remove old coverage frames */
 752         for (list<ArdourCanvas::SimpleRect*>::iterator i = _coverage_frames.begin (); i != _coverage_frames.end (); ++i) {
 753                 delete *i;
 754         }
 755
 756         _coverage_frames.clear ();
 757
 758         if (d != Stacked) {
 759                 /* don't do coverage frames unless we're in stacked mode */
 760                 return;
 761         }
 762
 763         boost::shared_ptr<Playlist> pl (_region->playlist ());
 764         if (!pl) {
 765                 return;
 766         }
 767
 768         framepos_t const position = _region->first_frame ();
 769         framepos_t t = position;
 770         framepos_t const end = _region->last_frame ();
 771
 772         ArdourCanvas::SimpleRect* cr = 0;
 773         bool me = false;
 774
 775         uint32_t const color = frame->property_fill_color_rgba ();
 776         uint32_t const base_alpha = UINT_RGBA_A (color);
 777
 778         while (t < end) {
 779
 780                 t++;
 781
 782                 /* is this region is on top at time t? */
 783                 bool const new_me = (pl->top_unmuted_region_at (t) == _region);
 784
 785                 /* finish off any old rect, if required */
 786                 if (cr && me != new_me) {
 787                         cr->property_x2() = trackview.editor().frame_to_pixel (t - position);
 788                 }
 789
 790                 /* start off any new rect, if required */
 791                 if (cr == 0 || me != new_me) {
 792                         cr = new ArdourCanvas::SimpleRect (*group);
 793                         _coverage_frames.push_back (cr);
 794                         cr->property_x1() = trackview.editor().frame_to_pixel (t - position);
 795                         cr->property_y1() = 1;
 796                         cr->property_y2() = _height + 1;
 797                         cr->property_outline_pixels() = 0;
 798                         /* areas that will be played get a lower alpha */
 799                         uint32_t alpha = base_alpha;
 800                         if (new_me) {
 801                                 alpha /= 2;
 802                         }
 803                         cr->property_fill_color_rgba () = UINT_RGBA_CHANGE_A (color, alpha);
 804                 }
 805
 806                 t = pl->find_next_region_boundary (t, 1);
 807                 me = new_me;
 808         }
 809
 810         if (cr) {
 811                 /* finish off the last rectangle */
 812                 cr->property_x2() = trackview.editor().frame_to_pixel (end - position);
 813         }
 814
 815         if (frame_handle_start) {
 816                 frame_handle_start->raise_to_top ();
 817         }
 818
 819         if (frame_handle_end) {
 820                 frame_handle_end->raise_to_top ();
 821         }
 822
 823         if (name_highlight) {
 824                 name_highlight->raise_to_top ();
 825         }
 826
 827         if (name_pixbuf) {
 828                 name_pixbuf->raise_to_top ();
 829         }
 830 }
 831
 832 void
 833 RegionView::trim_front (framepos_t new_bound, bool no_overlap)
 834 {
 835         if (_region->locked()) {
 836                 return;
 837         }
 838
 839         RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
 840         double const speed = rtv.track()->speed ();
 841
 842         framepos_t const pre_trim_first_frame = _region->first_frame();
 843
 844         _region->trim_front ((framepos_t) (new_bound * speed));
 845
 846         if (no_overlap) {
 847                 // Get the next region on the left of this region and shrink/expand it.
 848                 boost::shared_ptr<Playlist> playlist (_region->playlist());
 849                 boost::shared_ptr<Region> region_left = playlist->find_next_region (pre_trim_first_frame, End, 0);
 850
 851                 bool regions_touching = false;
 852
 853                 if (region_left != 0 && (pre_trim_first_frame == region_left->last_frame() + 1)) {
 854                         regions_touching = true;
 855                 }
 856
 857                 // Only trim region on the left if the first frame has gone beyond the left region's last frame.
 858                 if (region_left != 0 && (region_left->last_frame() > _region->first_frame() || regions_touching)) {
 859                         region_left->trim_end (_region->first_frame() - 1);
 860                 }
 861         }
 862
 863         region_changed (ARDOUR::bounds_change);
 864 }
 865
 866 void
 867 RegionView::trim_end (framepos_t new_bound, bool no_overlap)
 868 {
 869         if (_region->locked()) {
 870                 return;
 871         }
 872
 873         RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
 874         double const speed = rtv.track()->speed ();
 875
 876         framepos_t const pre_trim_last_frame = _region->last_frame();
 877
 878         _region->trim_end ((framepos_t) (new_bound * speed));
 879
 880         if (no_overlap) {
 881                 // Get the next region on the right of this region and shrink/expand it.
 882                 boost::shared_ptr<Playlist> playlist (_region->playlist());
 883                 boost::shared_ptr<Region> region_right = playlist->find_next_region (pre_trim_last_frame, Start, 1);
 884
 885                 bool regions_touching = false;
 886
 887                 if (region_right != 0 && (pre_trim_last_frame == region_right->first_frame() - 1)) {
 888                         regions_touching = true;
 889                 }
 890
 891                 // Only trim region on the right if the last frame has gone beyond the right region's first frame.
 892                 if (region_right != 0 && (region_right->first_frame() < _region->last_frame() || regions_touching)) {
 893                         region_right->trim_front (_region->last_frame() + 1);
 894                 }
 895
 896                 region_changed (ARDOUR::bounds_change);
 897
 898         } else {
 899                 region_changed (PropertyChange (ARDOUR::Properties::length));
 900         }
 901 }
 902
 903
 904 void
 905 RegionView::thaw_after_trim ()
 906 {
 907         if (_region->locked()) {
 908                 return;
 909         }
 910
 911         _region->resume_property_changes ();
 912 }
 913
 914
 915 void
 916 RegionView::trim_contents (framepos_t frame_delta, bool left_direction, bool swap_direction)
 917 {
 918         if (_region->locked()) {
 919                 return;
 920         }
 921
 922         framepos_t new_bound;
 923
 924         RouteTimeAxisView& rtv = dynamic_cast<RouteTimeAxisView&> (trackview);
 925         double const speed = rtv.track()->speed ();
 926
 927         if (left_direction) {
 928                 if (swap_direction) {
 929                         new_bound = (framepos_t) (_region->position() / speed) + frame_delta;
 930                 } else {
 931                         new_bound = (framepos_t) (_region->position() / speed) - frame_delta;
 932                 }
 933         } else {
 934                 if (swap_direction) {
 935                         new_bound = (framepos_t) (_region->position() / speed) - frame_delta;
 936                 } else {
 937                         new_bound = (framepos_t) (_region->position() / speed) + frame_delta;
 938                 }
 939         }
 940
 941         _region->trim_start ((framepos_t) (new_bound * speed));
 942         region_changed (PropertyChange (ARDOUR::Properties::start));
 943 }
 944