src/wx/timing_panel.cc

   1 /*
   2     Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "timing_panel.h"
  22 #include "wx_util.h"
  23 #include "film_viewer.h"
  24 #include "timecode.h"
  25 #include "content_panel.h"
  26 #include "move_to_dialog.h"
  27 #include "static_text.h"
  28 #include "dcpomatic_button.h"
  29 #include "lib/content.h"
  30 #include "lib/image_content.h"
  31 #include "lib/text_content.h"
  32 #include "lib/dcp_subtitle_content.h"
  33 #include "lib/audio_content.h"
  34 #include "lib/string_text_file_content.h"
  35 #include "lib/video_content.h"
  36 #include <dcp/locale_convert.h>
  37 #include <boost/foreach.hpp>
  38 #include <set>
  39 #include <iostream>
  40
  41 using std::cout;
  42 using std::string;
  43 using std::set;
  44 using boost::shared_ptr;
  45 using boost::weak_ptr;
  46 using boost::dynamic_pointer_cast;
  47 using boost::optional;
  48 using dcp::locale_convert;
  49
  50 TimingPanel::TimingPanel (ContentPanel* p, weak_ptr<FilmViewer> viewer)
  51         /* horrid hack for apparent lack of context support with wxWidgets i18n code */
  52         /// TRANSLATORS: translate the word "Timing" here; do not include the "Timing|" prefix
  53         : ContentSubPanel (p, S_("Timing|Timing"))
  54         , _viewer (viewer)
  55 {
  56         wxSize size = TimecodeBase::size (this);
  57
  58         for (int i = 0; i < 3; ++i) {
  59                 _colon[i] = create_label (this, wxT(":"), false);
  60         }
  61
  62         //// TRANSLATORS: this is an abbreviation for "hours"
  63         _h_label = new StaticText (this, _("h"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  64 #ifdef DCPOMATIC_LINUX
  65         /* Hack to work around failure to centre text on GTK */
  66         gtk_label_set_line_wrap (GTK_LABEL(_h_label->GetHandle()), FALSE);
  67 #endif
  68         //// TRANSLATORS: this is an abbreviation for "minutes"
  69         _m_label = new StaticText (this, _("m"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  70 #ifdef DCPOMATIC_LINUX
  71         gtk_label_set_line_wrap (GTK_LABEL (_m_label->GetHandle()), FALSE);
  72 #endif
  73         //// TRANSLATORS: this is an abbreviation for "seconds"
  74         _s_label = new StaticText (this, _("s"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  75 #ifdef DCPOMATIC_LINUX
  76         gtk_label_set_line_wrap (GTK_LABEL(_s_label->GetHandle()), FALSE);
  77 #endif
  78         //// TRANSLATORS: this is an abbreviation for "frames"
  79         _f_label = new StaticText (this, _("f"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  80 #ifdef DCPOMATIC_LINUX
  81         gtk_label_set_line_wrap (GTK_LABEL(_f_label->GetHandle()), FALSE);
  82 #endif
  83
  84         _position_label = create_label (this, _("Position"), true);
  85         _position = new Timecode<DCPTime> (this);
  86         _move_to_start_of_reel = new Button (this, _("Move to start of reel"));
  87         _full_length_label = create_label (this, _("Full length"), true);
  88         _full_length = new Timecode<DCPTime> (this);
  89         _trim_start_label = create_label (this, _("Trim from start"), true);
  90         _trim_start = new Timecode<ContentTime> (this);
  91         _trim_start_to_playhead = new Button (this, _("Trim up to current position"));
  92         _trim_end_label = create_label (this, _("Trim from end"), true);
  93         _trim_end = new Timecode<ContentTime> (this);
  94         _trim_end_to_playhead = new Button (this, _("Trim after current position"));
  95         _play_length_label = create_label (this, _("Play length"), true);
  96         _play_length = new Timecode<DCPTime> (this);
  97
  98         _video_frame_rate_label = create_label (this, _("Video frame rate"), true);
  99         _video_frame_rate = new wxTextCtrl (this, wxID_ANY);
 100         _set_video_frame_rate = new Button (this, _("Set"));
 101         _set_video_frame_rate->Enable (false);
 102
 103         /* We can't use Wrap() here as it doesn't work with markup:
 104          * http://trac.wxwidgets.org/ticket/13389
 105          */
 106
 107         wxString in = _("<i>Only change this if the content's frame rate has been read incorrectly.</i>");
 108         wxString out;
 109         int const width = 20;
 110         int current = 0;
 111         for (size_t i = 0; i < in.Length(); ++i) {
 112                 if (in[i] == ' ' && current >= width) {
 113                         out += '\n';
 114                         current = 0;
 115                 } else {
 116                         out += in[i];
 117                         ++current;
 118                 }
 119         }
 120
 121         _tip = new StaticText (this, wxT (""));
 122         _tip->SetLabelMarkup (out);
 123 #ifdef DCPOMATIC_OSX
 124         /* Hack to stop hidden text on some versions of OS X */
 125         _tip->SetMinSize (wxSize (-1, 256));
 126 #endif
 127
 128         _position->Changed.connect    (boost::bind (&TimingPanel::position_changed, this));
 129         _move_to_start_of_reel->Bind  (wxEVT_BUTTON, boost::bind (&TimingPanel::move_to_start_of_reel_clicked, this));
 130         _full_length->Changed.connect (boost::bind (&TimingPanel::full_length_changed, this));
 131         _trim_start->Changed.connect  (boost::bind (&TimingPanel::trim_start_changed, this));
 132         _trim_start_to_playhead->Bind (wxEVT_BUTTON, boost::bind (&TimingPanel::trim_start_to_playhead_clicked, this));
 133         _trim_end->Changed.connect    (boost::bind (&TimingPanel::trim_end_changed, this));
 134         _trim_end_to_playhead->Bind   (wxEVT_BUTTON, boost::bind (&TimingPanel::trim_end_to_playhead_clicked, this));
 135         _play_length->Changed.connect (boost::bind (&TimingPanel::play_length_changed, this));
 136         _video_frame_rate->Bind       (wxEVT_TEXT, boost::bind (&TimingPanel::video_frame_rate_changed, this));
 137         _set_video_frame_rate->Bind   (wxEVT_BUTTON, boost::bind (&TimingPanel::set_video_frame_rate, this));
 138
 139         shared_ptr<FilmViewer> fv = _viewer.lock ();
 140         DCPOMATIC_ASSERT (fv);
 141         fv->ImageChanged.connect (boost::bind (&TimingPanel::setup_sensitivity, this));
 142
 143         setup_sensitivity ();
 144         add_to_grid ();
 145 }
 146
 147 void
 148 TimingPanel::add_to_grid ()
 149 {
 150         bool const full = Config::instance()->interface_complexity() == Config::INTERFACE_FULL;
 151
 152         int r = 0;
 153
 154         wxSizer* labels = new wxBoxSizer (wxHORIZONTAL);
 155         labels->Add (_h_label, 1, wxEXPAND);
 156         add_label_to_sizer (labels, _colon[0], false);
 157         labels->Add (_m_label, 1, wxEXPAND);
 158         add_label_to_sizer (labels, _colon[1], false);
 159         labels->Add (_s_label, 1, wxEXPAND);
 160         add_label_to_sizer (labels, _colon[2], false);
 161         labels->Add (_f_label, 1, wxEXPAND);
 162         _grid->Add (labels, wxGBPosition(r, 1));
 163         ++r;
 164
 165         add_label_to_sizer (_grid, _position_label, true, wxGBPosition(r, 0));
 166         _grid->Add (_position, wxGBPosition(r, 1));
 167         ++r;
 168
 169         _move_to_start_of_reel->Show (full);
 170         _full_length_label->Show (full);
 171         _full_length->Show (full);
 172         _play_length_label->Show (full);
 173         _play_length->Show (full);
 174         _video_frame_rate_label->Show (full);
 175         _video_frame_rate->Show (full);
 176         _set_video_frame_rate->Show (full);
 177         _tip->Show (full);
 178
 179         if (full) {
 180                 _grid->Add (_move_to_start_of_reel, wxGBPosition(r, 1));
 181                 ++r;
 182
 183                 add_label_to_sizer (_grid, _full_length_label, true, wxGBPosition(r, 0));
 184                 _grid->Add (_full_length, wxGBPosition(r, 1));
 185                 ++r;
 186         }
 187
 188         add_label_to_sizer (_grid, _trim_start_label, true, wxGBPosition(r, 0));
 189         _grid->Add (_trim_start, wxGBPosition(r, 1));
 190         ++r;
 191
 192         _grid->Add (_trim_start_to_playhead, wxGBPosition(r, 1));
 193         ++r;
 194
 195         add_label_to_sizer (_grid, _trim_end_label, true, wxGBPosition(r, 0));
 196         _grid->Add (_trim_end, wxGBPosition(r, 1));
 197         ++r;
 198
 199         _grid->Add (_trim_end_to_playhead, wxGBPosition(r, 1));
 200         ++r;
 201
 202         if (full) {
 203                 add_label_to_sizer (_grid, _play_length_label, true, wxGBPosition(r, 0));
 204                 _grid->Add (_play_length, wxGBPosition(r, 1));
 205                 ++r;
 206
 207                 {
 208                         add_label_to_sizer (_grid, _video_frame_rate_label, true, wxGBPosition(r, 0));
 209                         wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 210                         s->Add (_video_frame_rate, 1, wxEXPAND);
 211                         s->Add (_set_video_frame_rate, 0, wxLEFT | wxRIGHT, 8);
 212                         _grid->Add (s, wxGBPosition(r, 1), wxGBSpan(1, 2));
 213                 }
 214                 ++r;
 215
 216                 _grid->Add (_tip, wxGBPosition(r, 1), wxGBSpan(1, 2));
 217         }
 218
 219         /* Completely speculative fix for #891 */
 220         _grid->Layout ();
 221 }
 222
 223 void
 224 TimingPanel::update_full_length ()
 225 {
 226         set<DCPTime> check;
 227         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 228                 check.insert (i->full_length(_parent->film()));
 229         }
 230
 231         if (check.size() == 1) {
 232                 _full_length->set (_parent->selected().front()->full_length(_parent->film()), _parent->film()->video_frame_rate());
 233         } else {
 234                 _full_length->clear ();
 235         }
 236 }
 237
 238 void
 239 TimingPanel::update_play_length ()
 240 {
 241         set<DCPTime> check;
 242         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 243                 check.insert (i->length_after_trim(_parent->film()));
 244         }
 245
 246         if (check.size() == 1) {
 247                 _play_length->set (_parent->selected().front()->length_after_trim(_parent->film()), _parent->film()->video_frame_rate());
 248         } else {
 249                 _play_length->clear ();
 250         }
 251 }
 252
 253 void
 254 TimingPanel::film_content_changed (int property)
 255 {
 256         int const film_video_frame_rate = _parent->film()->video_frame_rate ();
 257
 258         /* Here we check to see if we have exactly one different value of various
 259            properties, and fill the controls with that value if so.
 260         */
 261
 262         if (property == ContentProperty::POSITION) {
 263
 264                 set<DCPTime> check;
 265                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 266                         check.insert (i->position ());
 267                 }
 268
 269                 if (check.size() == 1) {
 270                         _position->set (_parent->selected().front()->position(), film_video_frame_rate);
 271                 } else {
 272                         _position->clear ();
 273                 }
 274
 275         } else if (
 276                 property == ContentProperty::LENGTH ||
 277                 property == ContentProperty::VIDEO_FRAME_RATE ||
 278                 property == VideoContentProperty::FRAME_TYPE
 279                 ) {
 280
 281                 update_full_length ();
 282
 283         } else if (property == ContentProperty::TRIM_START) {
 284
 285                 set<ContentTime> check;
 286                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 287                         check.insert (i->trim_start ());
 288                 }
 289
 290                 if (check.size() == 1) {
 291                         _trim_start->set (_parent->selected().front()->trim_start (), film_video_frame_rate);
 292                 } else {
 293                         _trim_start->clear ();
 294                 }
 295
 296         } else if (property == ContentProperty::TRIM_END) {
 297
 298                 set<ContentTime> check;
 299                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 300                         check.insert (i->trim_end ());
 301                 }
 302
 303                 if (check.size() == 1) {
 304                         _trim_end->set (_parent->selected().front()->trim_end (), film_video_frame_rate);
 305                 } else {
 306                         _trim_end->clear ();
 307                 }
 308         }
 309
 310         if (
 311                 property == ContentProperty::LENGTH ||
 312                 property == ContentProperty::TRIM_START ||
 313                 property == ContentProperty::TRIM_END ||
 314                 property == ContentProperty::VIDEO_FRAME_RATE ||
 315                 property == VideoContentProperty::FRAME_TYPE
 316                 ) {
 317
 318                 update_play_length ();
 319         }
 320
 321         if (property == ContentProperty::VIDEO_FRAME_RATE) {
 322                 set<double> check_vc;
 323                 shared_ptr<const Content> content;
 324                 int count_ac = 0;
 325                 int count_sc = 0;
 326                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 327                         if (i->video && i->video_frame_rate()) {
 328                                 check_vc.insert (i->video_frame_rate().get());
 329                                 content = i;
 330                         }
 331                         if (i->audio && i->video_frame_rate()) {
 332                                 ++count_ac;
 333                                 content = i;
 334                         }
 335                         if (!i->text.empty() && i->video_frame_rate()) {
 336                                 ++count_sc;
 337                                 content = i;
 338                         }
 339
 340                 }
 341
 342                 bool const single_frame_image_content = content && dynamic_pointer_cast<const ImageContent> (content) && content->number_of_paths() == 1;
 343
 344                 if ((check_vc.size() == 1 || count_ac == 1 || count_sc == 1) && !single_frame_image_content) {
 345                         checked_set (_video_frame_rate, locale_convert<string> (content->video_frame_rate().get(), 5));
 346                         _video_frame_rate->Enable (true);
 347                 } else {
 348                         checked_set (_video_frame_rate, wxT (""));
 349                         _video_frame_rate->Enable (false);
 350                 }
 351         }
 352
 353         bool have_still = false;
 354         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 355                 shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
 356                 if (ic && ic->still ()) {
 357                         have_still = true;
 358                 }
 359         }
 360
 361         _full_length->set_editable (have_still);
 362         _play_length->set_editable (!have_still);
 363         _set_video_frame_rate->Enable (false);
 364         setup_sensitivity ();
 365 }
 366
 367 void
 368 TimingPanel::position_changed ()
 369 {
 370         DCPTime const pos = _position->get (_parent->film()->video_frame_rate ());
 371         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 372                 i->set_position (_parent->film(), pos);
 373         }
 374 }
 375
 376 void
 377 TimingPanel::full_length_changed ()
 378 {
 379         int const vfr = _parent->film()->video_frame_rate ();
 380         Frame const len = _full_length->get (vfr).frames_round (vfr);
 381         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 382                 shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (i);
 383                 if (ic && ic->still ()) {
 384                         ic->video->set_length (len);
 385                 }
 386         }
 387 }
 388
 389 void
 390 TimingPanel::trim_start_changed ()
 391 {
 392         shared_ptr<FilmViewer> fv = _viewer.lock ();
 393         if (!fv) {
 394                 return;
 395         }
 396
 397         DCPTime const ph = fv->position ();
 398
 399         fv->set_coalesce_player_changes (true);
 400
 401         shared_ptr<Content> ref;
 402         optional<FrameRateChange> ref_frc;
 403         optional<DCPTime> ref_ph;
 404
 405         ContentTime const trim = _trim_start->get (_parent->film()->video_frame_rate ());
 406
 407         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 408                 if (i->position() <= ph && ph < i->end(_parent->film())) {
 409                         /* The playhead is in i.  Use it as a reference to work out
 410                            where to put the playhead post-trim; we're trying to keep the playhead
 411                            at the same frame of content that we're looking at pre-trim.
 412                         */
 413                         ref = i;
 414                         ref_frc = _parent->film()->active_frame_rate_change (i->position ());
 415                         ref_ph = ph - i->position() + DCPTime (i->trim_start(), ref_frc.get());
 416                 }
 417
 418                 i->set_trim_start (trim);
 419         }
 420
 421         if (ref) {
 422                 fv->seek (max(DCPTime(), ref_ph.get() + ref->position() - DCPTime(ref->trim_start(), ref_frc.get())), true);
 423         }
 424
 425         fv->set_coalesce_player_changes (false);
 426 }
 427
 428 void
 429 TimingPanel::trim_end_changed ()
 430 {
 431         shared_ptr<FilmViewer> fv = _viewer.lock ();
 432         if (!fv) {
 433                 return;
 434         }
 435
 436         fv->set_coalesce_player_changes (true);
 437
 438         ContentTime const trim = _trim_end->get (_parent->film()->video_frame_rate ());
 439         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 440                 i->set_trim_end (trim);
 441         }
 442
 443         /* XXX: maybe playhead-off-the-end-of-the-film should be handled elsewhere */
 444         if (fv->position() >= _parent->film()->length()) {
 445                 fv->seek (_parent->film()->length() - DCPTime::from_frames(1, _parent->film()->video_frame_rate()), true);
 446         }
 447
 448         fv->set_coalesce_player_changes (true);
 449 }
 450
 451 void
 452 TimingPanel::play_length_changed ()
 453 {
 454         DCPTime const play_length = _play_length->get (_parent->film()->video_frame_rate());
 455         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 456                 FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
 457                 i->set_trim_end (
 458                         ContentTime (max(DCPTime(), i->full_length(_parent->film()) - play_length), frc) - i->trim_start()
 459                         );
 460         }
 461 }
 462
 463 void
 464 TimingPanel::video_frame_rate_changed ()
 465 {
 466         _set_video_frame_rate->Enable (true);
 467 }
 468
 469 void
 470 TimingPanel::set_video_frame_rate ()
 471 {
 472         optional<double> fr;
 473         if (_video_frame_rate->GetValue() != wxT("")) {
 474                 fr = locale_convert<double> (wx_to_std (_video_frame_rate->GetValue ()));
 475         }
 476         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 477                 if (fr) {
 478                         i->set_video_frame_rate (*fr);
 479                 } else {
 480                         i->unset_video_frame_rate ();
 481                 }
 482         }
 483
 484         _set_video_frame_rate->Enable (false);
 485 }
 486
 487 void
 488 TimingPanel::content_selection_changed ()
 489 {
 490         setup_sensitivity ();
 491
 492         film_content_changed (ContentProperty::POSITION);
 493         film_content_changed (ContentProperty::LENGTH);
 494         film_content_changed (ContentProperty::TRIM_START);
 495         film_content_changed (ContentProperty::TRIM_END);
 496         film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 497 }
 498
 499 void
 500 TimingPanel::film_changed (Film::Property p)
 501 {
 502         if (p == Film::VIDEO_FRAME_RATE) {
 503                 update_full_length ();
 504                 update_play_length ();
 505         }
 506 }
 507
 508 void
 509 TimingPanel::trim_start_to_playhead_clicked ()
 510 {
 511         shared_ptr<FilmViewer> fv = _viewer.lock ();
 512         if (!fv) {
 513                 return;
 514         }
 515
 516         shared_ptr<const Film> film = _parent->film ();
 517         DCPTime const ph = fv->position().floor (film->video_frame_rate ());
 518         optional<DCPTime> new_ph;
 519
 520         fv->set_coalesce_player_changes (true);
 521
 522         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 523                 if (i->position() < ph && ph < i->end(film)) {
 524                         FrameRateChange const frc = film->active_frame_rate_change (i->position());
 525                         i->set_trim_start (i->trim_start() + ContentTime (ph - i->position(), frc));
 526                         new_ph = i->position ();
 527                 }
 528         }
 529
 530         if (new_ph) {
 531                 fv->seek (new_ph.get(), true);
 532         }
 533
 534         fv->set_coalesce_player_changes (false);
 535 }
 536
 537 void
 538 TimingPanel::trim_end_to_playhead_clicked ()
 539 {
 540         shared_ptr<FilmViewer> fv = _viewer.lock ();
 541         if (!fv) {
 542                 return;
 543         }
 544
 545         shared_ptr<const Film> film = _parent->film ();
 546         DCPTime const ph = fv->position().floor (film->video_frame_rate ());
 547         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 548                 if (i->position() < ph && ph < i->end(film)) {
 549                         FrameRateChange const frc = film->active_frame_rate_change (i->position ());
 550                         i->set_trim_end (ContentTime(i->position() + i->full_length(film) - ph - DCPTime::from_frames(1, frc.dcp), frc) - i->trim_start());
 551                 }
 552         }
 553 }
 554
 555 void
 556 TimingPanel::setup_sensitivity ()
 557 {
 558         bool const e = !_parent->selected().empty ();
 559
 560         _position->Enable (e);
 561         _move_to_start_of_reel->Enable (e);
 562         _full_length->Enable (e);
 563         _trim_start->Enable (e);
 564         _trim_end->Enable (e);
 565         _play_length->Enable (e);
 566         _video_frame_rate->Enable (e);
 567
 568         shared_ptr<FilmViewer> fv = _viewer.lock ();
 569         DCPOMATIC_ASSERT (fv);
 570         DCPTime const ph = fv->position ();
 571         bool any_over_ph = false;
 572         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 573                 if (i->position() <= ph && ph < i->end(_parent->film())) {
 574                         any_over_ph = true;
 575                 }
 576         }
 577
 578         _trim_start_to_playhead->Enable (any_over_ph);
 579         _trim_end_to_playhead->Enable (any_over_ph);
 580 }
 581
 582 void
 583 TimingPanel::move_to_start_of_reel_clicked ()
 584 {
 585         /* Find common position of all selected content, if it exists */
 586
 587         optional<DCPTime> position;
 588         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 589                 if (!position) {
 590                         position = i->position();
 591                 } else {
 592                         if (position.get() != i->position()) {
 593                                 position.reset ();
 594                                 break;
 595                         }
 596                 }
 597         }
 598
 599         MoveToDialog* d = new MoveToDialog (this, position, _parent->film());
 600
 601         if (d->ShowModal() == wxID_OK) {
 602                 BOOST_FOREACH (shared_ptr<Content> i, _parent->selected()) {
 603                         i->set_position (_parent->film(), d->position());
 604                 }
 605         }
 606         d->Destroy ();
 607 }