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         _trim_start_label->Show (full);
 173         _trim_start->Show (full);
 174         _trim_start_to_playhead->Show (full);
 175         _trim_end_label->Show (full);
 176         _trim_end->Show (full);
 177         _trim_end_to_playhead->Show (full);
 178         _play_length_label->Show (full);
 179         _play_length->Show (full);
 180         _video_frame_rate_label->Show (full);
 181         _video_frame_rate->Show (full);
 182         _set_video_frame_rate->Show (full);
 183         _tip->Show (full);
 184
 185         if (full) {
 186                 _grid->Add (_move_to_start_of_reel, wxGBPosition(r, 1));
 187                 ++r;
 188
 189                 add_label_to_sizer (_grid, _full_length_label, true, wxGBPosition(r, 0));
 190                 _grid->Add (_full_length, wxGBPosition(r, 1));
 191                 ++r;
 192
 193                 add_label_to_sizer (_grid, _trim_start_label, true, wxGBPosition(r, 0));
 194                 _grid->Add (_trim_start, wxGBPosition(r, 1));
 195                 ++r;
 196
 197                 _grid->Add (_trim_start_to_playhead, wxGBPosition(r, 1));
 198                 ++r;
 199
 200                 add_label_to_sizer (_grid, _trim_end_label, true, wxGBPosition(r, 0));
 201                 _grid->Add (_trim_end, wxGBPosition(r, 1));
 202                 ++r;
 203
 204                 _grid->Add (_trim_end_to_playhead, wxGBPosition(r, 1));
 205                 ++r;
 206
 207                 add_label_to_sizer (_grid, _play_length_label, true, wxGBPosition(r, 0));
 208                 _grid->Add (_play_length, wxGBPosition(r, 1));
 209                 ++r;
 210
 211                 {
 212                         add_label_to_sizer (_grid, _video_frame_rate_label, true, wxGBPosition(r, 0));
 213                         wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 214                         s->Add (_video_frame_rate, 1, wxEXPAND);
 215                         s->Add (_set_video_frame_rate, 0, wxLEFT | wxRIGHT, 8);
 216                         _grid->Add (s, wxGBPosition(r, 1), wxGBSpan(1, 2));
 217                 }
 218                 ++r;
 219
 220                 _grid->Add (_tip, wxGBPosition(r, 1), wxGBSpan(1, 2));
 221         }
 222
 223         /* Completely speculative fix for #891 */
 224         _grid->Layout ();
 225 }
 226
 227 void
 228 TimingPanel::update_full_length ()
 229 {
 230         set<DCPTime> check;
 231         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 232                 check.insert (i->full_length(_parent->film()));
 233         }
 234
 235         if (check.size() == 1) {
 236                 _full_length->set (_parent->selected().front()->full_length(_parent->film()), _parent->film()->video_frame_rate());
 237         } else {
 238                 _full_length->clear ();
 239         }
 240 }
 241
 242 void
 243 TimingPanel::update_play_length ()
 244 {
 245         set<DCPTime> check;
 246         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 247                 check.insert (i->length_after_trim(_parent->film()));
 248         }
 249
 250         if (check.size() == 1) {
 251                 _play_length->set (_parent->selected().front()->length_after_trim(_parent->film()), _parent->film()->video_frame_rate());
 252         } else {
 253                 _play_length->clear ();
 254         }
 255 }
 256
 257 void
 258 TimingPanel::film_content_changed (int property)
 259 {
 260         int const film_video_frame_rate = _parent->film()->video_frame_rate ();
 261
 262         /* Here we check to see if we have exactly one different value of various
 263            properties, and fill the controls with that value if so.
 264         */
 265
 266         if (property == ContentProperty::POSITION) {
 267
 268                 set<DCPTime> check;
 269                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 270                         check.insert (i->position ());
 271                 }
 272
 273                 if (check.size() == 1) {
 274                         _position->set (_parent->selected().front()->position(), film_video_frame_rate);
 275                 } else {
 276                         _position->clear ();
 277                 }
 278
 279         } else if (
 280                 property == ContentProperty::LENGTH ||
 281                 property == ContentProperty::VIDEO_FRAME_RATE ||
 282                 property == VideoContentProperty::FRAME_TYPE
 283                 ) {
 284
 285                 update_full_length ();
 286
 287         } else if (property == ContentProperty::TRIM_START) {
 288
 289                 set<ContentTime> check;
 290                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 291                         check.insert (i->trim_start ());
 292                 }
 293
 294                 if (check.size() == 1) {
 295                         _trim_start->set (_parent->selected().front()->trim_start (), film_video_frame_rate);
 296                 } else {
 297                         _trim_start->clear ();
 298                 }
 299
 300         } else if (property == ContentProperty::TRIM_END) {
 301
 302                 set<ContentTime> check;
 303                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 304                         check.insert (i->trim_end ());
 305                 }
 306
 307                 if (check.size() == 1) {
 308                         _trim_end->set (_parent->selected().front()->trim_end (), film_video_frame_rate);
 309                 } else {
 310                         _trim_end->clear ();
 311                 }
 312         }
 313
 314         if (
 315                 property == ContentProperty::LENGTH ||
 316                 property == ContentProperty::TRIM_START ||
 317                 property == ContentProperty::TRIM_END ||
 318                 property == ContentProperty::VIDEO_FRAME_RATE ||
 319                 property == VideoContentProperty::FRAME_TYPE
 320                 ) {
 321
 322                 update_play_length ();
 323         }
 324
 325         if (property == ContentProperty::VIDEO_FRAME_RATE) {
 326                 set<double> check_vc;
 327                 shared_ptr<const Content> content;
 328                 int count_ac = 0;
 329                 int count_sc = 0;
 330                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 331                         if (i->video && i->video_frame_rate()) {
 332                                 check_vc.insert (i->video_frame_rate().get());
 333                                 content = i;
 334                         }
 335                         if (i->audio && i->video_frame_rate()) {
 336                                 ++count_ac;
 337                                 content = i;
 338                         }
 339                         if (!i->text.empty() && i->video_frame_rate()) {
 340                                 ++count_sc;
 341                                 content = i;
 342                         }
 343
 344                 }
 345
 346                 bool const single_frame_image_content = content && dynamic_pointer_cast<const ImageContent> (content) && content->number_of_paths() == 1;
 347
 348                 if ((check_vc.size() == 1 || count_ac == 1 || count_sc == 1) && !single_frame_image_content) {
 349                         checked_set (_video_frame_rate, locale_convert<string> (content->video_frame_rate().get(), 5));
 350                         _video_frame_rate->Enable (true);
 351                 } else {
 352                         checked_set (_video_frame_rate, wxT (""));
 353                         _video_frame_rate->Enable (false);
 354                 }
 355         }
 356
 357         bool have_still = false;
 358         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 359                 shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
 360                 if (ic && ic->still ()) {
 361                         have_still = true;
 362                 }
 363         }
 364
 365         _full_length->set_editable (have_still);
 366         _play_length->set_editable (!have_still);
 367         _set_video_frame_rate->Enable (false);
 368         setup_sensitivity ();
 369 }
 370
 371 void
 372 TimingPanel::position_changed ()
 373 {
 374         DCPTime const pos = _position->get (_parent->film()->video_frame_rate ());
 375         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 376                 i->set_position (_parent->film(), pos);
 377         }
 378 }
 379
 380 void
 381 TimingPanel::full_length_changed ()
 382 {
 383         int const vfr = _parent->film()->video_frame_rate ();
 384         Frame const len = _full_length->get (vfr).frames_round (vfr);
 385         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 386                 shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (i);
 387                 if (ic && ic->still ()) {
 388                         ic->video->set_length (len);
 389                 }
 390         }
 391 }
 392
 393 void
 394 TimingPanel::trim_start_changed ()
 395 {
 396         shared_ptr<FilmViewer> fv = _viewer.lock ();
 397         if (!fv) {
 398                 return;
 399         }
 400
 401         DCPTime const ph = fv->position ();
 402
 403         fv->set_coalesce_player_changes (true);
 404
 405         shared_ptr<Content> ref;
 406         optional<FrameRateChange> ref_frc;
 407         optional<DCPTime> ref_ph;
 408
 409         ContentTime const trim = _trim_start->get (_parent->film()->video_frame_rate ());
 410
 411         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 412                 if (i->position() <= ph && ph < i->end(_parent->film())) {
 413                         /* The playhead is in i.  Use it as a reference to work out
 414                            where to put the playhead post-trim; we're trying to keep the playhead
 415                            at the same frame of content that we're looking at pre-trim.
 416                         */
 417                         ref = i;
 418                         ref_frc = _parent->film()->active_frame_rate_change (i->position ());
 419                         ref_ph = ph - i->position() + DCPTime (i->trim_start(), ref_frc.get());
 420                 }
 421
 422                 i->set_trim_start (trim);
 423         }
 424
 425         if (ref) {
 426                 fv->seek (max(DCPTime(), ref_ph.get() + ref->position() - DCPTime(ref->trim_start(), ref_frc.get())), true);
 427         }
 428
 429         fv->set_coalesce_player_changes (false);
 430 }
 431
 432 void
 433 TimingPanel::trim_end_changed ()
 434 {
 435         shared_ptr<FilmViewer> fv = _viewer.lock ();
 436         if (!fv) {
 437                 return;
 438         }
 439
 440         fv->set_coalesce_player_changes (true);
 441
 442         ContentTime const trim = _trim_end->get (_parent->film()->video_frame_rate ());
 443         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 444                 i->set_trim_end (trim);
 445         }
 446
 447         /* XXX: maybe playhead-off-the-end-of-the-film should be handled elsewhere */
 448         if (fv->position() >= _parent->film()->length()) {
 449                 fv->seek (_parent->film()->length() - DCPTime::from_frames(1, _parent->film()->video_frame_rate()), true);
 450         }
 451
 452         fv->set_coalesce_player_changes (true);
 453 }
 454
 455 void
 456 TimingPanel::play_length_changed ()
 457 {
 458         DCPTime const play_length = _play_length->get (_parent->film()->video_frame_rate());
 459         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 460                 FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
 461                 i->set_trim_end (
 462                         ContentTime (max(DCPTime(), i->full_length(_parent->film()) - play_length), frc) - i->trim_start()
 463                         );
 464         }
 465 }
 466
 467 void
 468 TimingPanel::video_frame_rate_changed ()
 469 {
 470         _set_video_frame_rate->Enable (true);
 471 }
 472
 473 void
 474 TimingPanel::set_video_frame_rate ()
 475 {
 476         optional<double> fr;
 477         if (_video_frame_rate->GetValue() != wxT("")) {
 478                 fr = locale_convert<double> (wx_to_std (_video_frame_rate->GetValue ()));
 479         }
 480         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 481                 if (fr) {
 482                         i->set_video_frame_rate (*fr);
 483                 } else {
 484                         i->unset_video_frame_rate ();
 485                 }
 486         }
 487
 488         _set_video_frame_rate->Enable (false);
 489 }
 490
 491 void
 492 TimingPanel::content_selection_changed ()
 493 {
 494         setup_sensitivity ();
 495
 496         film_content_changed (ContentProperty::POSITION);
 497         film_content_changed (ContentProperty::LENGTH);
 498         film_content_changed (ContentProperty::TRIM_START);
 499         film_content_changed (ContentProperty::TRIM_END);
 500         film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 501 }
 502
 503 void
 504 TimingPanel::film_changed (Film::Property p)
 505 {
 506         if (p == Film::VIDEO_FRAME_RATE) {
 507                 update_full_length ();
 508                 update_play_length ();
 509         }
 510 }
 511
 512 void
 513 TimingPanel::trim_start_to_playhead_clicked ()
 514 {
 515         shared_ptr<FilmViewer> fv = _viewer.lock ();
 516         if (!fv) {
 517                 return;
 518         }
 519
 520         shared_ptr<const Film> film = _parent->film ();
 521         DCPTime const ph = fv->position().floor (film->video_frame_rate ());
 522         optional<DCPTime> new_ph;
 523
 524         fv->set_coalesce_player_changes (true);
 525
 526         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 527                 if (i->position() < ph && ph < i->end(film)) {
 528                         FrameRateChange const frc = film->active_frame_rate_change (i->position());
 529                         i->set_trim_start (i->trim_start() + ContentTime (ph - i->position(), frc));
 530                         new_ph = i->position ();
 531                 }
 532         }
 533
 534         if (new_ph) {
 535                 fv->seek (new_ph.get(), true);
 536         }
 537
 538         fv->set_coalesce_player_changes (false);
 539 }
 540
 541 void
 542 TimingPanel::trim_end_to_playhead_clicked ()
 543 {
 544         shared_ptr<FilmViewer> fv = _viewer.lock ();
 545         if (!fv) {
 546                 return;
 547         }
 548
 549         shared_ptr<const Film> film = _parent->film ();
 550         DCPTime const ph = fv->position().floor (film->video_frame_rate ());
 551         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 552                 if (i->position() < ph && ph < i->end(film)) {
 553                         FrameRateChange const frc = film->active_frame_rate_change (i->position ());
 554                         i->set_trim_end (ContentTime(i->position() + i->full_length(film) - ph - DCPTime::from_frames(1, frc.dcp), frc) - i->trim_start());
 555                 }
 556         }
 557 }
 558
 559 void
 560 TimingPanel::setup_sensitivity ()
 561 {
 562         bool const e = !_parent->selected().empty ();
 563
 564         _position->Enable (e);
 565         _move_to_start_of_reel->Enable (e);
 566         _full_length->Enable (e);
 567         _trim_start->Enable (e);
 568         _trim_end->Enable (e);
 569         _play_length->Enable (e);
 570         _video_frame_rate->Enable (e);
 571
 572         shared_ptr<FilmViewer> fv = _viewer.lock ();
 573         DCPOMATIC_ASSERT (fv);
 574         DCPTime const ph = fv->position ();
 575         bool any_over_ph = false;
 576         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 577                 if (i->position() <= ph && ph < i->end(_parent->film())) {
 578                         any_over_ph = true;
 579                 }
 580         }
 581
 582         _trim_start_to_playhead->Enable (any_over_ph);
 583         _trim_end_to_playhead->Enable (any_over_ph);
 584 }
 585
 586 void
 587 TimingPanel::move_to_start_of_reel_clicked ()
 588 {
 589         /* Find common position of all selected content, if it exists */
 590
 591         optional<DCPTime> position;
 592         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 593                 if (!position) {
 594                         position = i->position();
 595                 } else {
 596                         if (position.get() != i->position()) {
 597                                 position.reset ();
 598                                 break;
 599                         }
 600                 }
 601         }
 602
 603         MoveToDialog* d = new MoveToDialog (this, position, _parent->film());
 604
 605         if (d->ShowModal() == wxID_OK) {
 606                 BOOST_FOREACH (shared_ptr<Content> i, _parent->selected()) {
 607                         i->set_position (_parent->film(), d->position());
 608                 }
 609         }
 610         d->Destroy ();
 611 }