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 "lib/dcp_content.h"
  37 #include "lib/ffmpeg_content.h"
  38 #include <dcp/locale_convert.h>
  39 #include "lib/warnings.h"
  40 #if defined(__WXGTK20__) && !defined(__WXGTK3__)
  41 #define TIMING_PANEL_ALIGNMENT_HACK 1
  42 DCPOMATIC_DISABLE_WARNINGS
  43 #include <gtk/gtk.h>
  44 DCPOMATIC_ENABLE_WARNINGS
  45 #endif
  46 #include <boost/foreach.hpp>
  47 #include <set>
  48 #include <iostream>
  49
  50 using std::cout;
  51 using std::string;
  52 using std::set;
  53 using boost::shared_ptr;
  54 using boost::weak_ptr;
  55 using boost::dynamic_pointer_cast;
  56 using boost::optional;
  57 #if BOOST_VERSION >= 106100
  58 using namespace boost::placeholders;
  59 #endif
  60 using dcp::locale_convert;
  61 using namespace dcpomatic;
  62
  63 TimingPanel::TimingPanel (ContentPanel* p, weak_ptr<FilmViewer> viewer)
  64         /* horrid hack for apparent lack of context support with wxWidgets i18n code */
  65         /// TRANSLATORS: translate the word "Timing" here; do not include the "Timing|" prefix
  66         : ContentSubPanel (p, S_("Timing|Timing"))
  67         , _viewer (viewer)
  68         , _film_content_changed_suspender (boost::bind(&TimingPanel::film_content_changed, this, _1))
  69 {
  70         wxSize size = TimecodeBase::size (this);
  71
  72         for (int i = 0; i < 3; ++i) {
  73                 _colon[i] = create_label (this, wxT(":"), false);
  74         }
  75
  76         //// TRANSLATORS: this is an abbreviation for "hours"
  77         _h_label = new StaticText (this, _("h"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  78 #ifdef TIMING_PANEL_ALIGNMENT_HACK
  79         /* Hack to work around failure to centre text on GTK */
  80         gtk_label_set_line_wrap (GTK_LABEL(_h_label->GetHandle()), FALSE);
  81 #endif
  82         //// TRANSLATORS: this is an abbreviation for "minutes"
  83         _m_label = new StaticText (this, _("m"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  84 #ifdef TIMING_PANEL_ALIGNMENT_HACK
  85         gtk_label_set_line_wrap (GTK_LABEL (_m_label->GetHandle()), FALSE);
  86 #endif
  87         //// TRANSLATORS: this is an abbreviation for "seconds"
  88         _s_label = new StaticText (this, _("s"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  89 #ifdef TIMING_PANEL_ALIGNMENT_HACK
  90         gtk_label_set_line_wrap (GTK_LABEL(_s_label->GetHandle()), FALSE);
  91 #endif
  92         //// TRANSLATORS: this is an abbreviation for "frames"
  93         _f_label = new StaticText (this, _("f"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  94 #ifdef TIMING_PANEL_ALIGNMENT_HACK
  95         gtk_label_set_line_wrap (GTK_LABEL(_f_label->GetHandle()), FALSE);
  96 #endif
  97
  98         _position_label = create_label (this, _("Position"), true);
  99         _position = new Timecode<DCPTime> (this);
 100         _move_to_start_of_reel = new Button (this, _("Move to start of reel"));
 101         _full_length_label = create_label (this, _("Full length"), true);
 102         _full_length = new Timecode<DCPTime> (this);
 103         _trim_start_label = create_label (this, _("Trim from start"), true);
 104         _trim_start = new Timecode<ContentTime> (this);
 105         _trim_start_to_playhead = new Button (this, _("Trim up to current position"));
 106         _trim_end_label = create_label (this, _("Trim from end"), true);
 107         _trim_end = new Timecode<ContentTime> (this);
 108         _trim_end_to_playhead = new Button (this, _("Trim after current position"));
 109         _play_length_label = create_label (this, _("Play length"), true);
 110         _play_length = new Timecode<DCPTime> (this);
 111
 112         _video_frame_rate_label = create_label (this, _("Video frame rate"), true);
 113         _video_frame_rate = new wxTextCtrl (this, wxID_ANY);
 114         _set_video_frame_rate = new Button (this, _("Set"));
 115         _set_video_frame_rate->Enable (false);
 116
 117         /* We can't use Wrap() here as it doesn't work with markup:
 118          * http://trac.wxwidgets.org/ticket/13389
 119          */
 120
 121         wxString in = _("<i>Only change this if the content's frame rate has been read incorrectly.</i>");
 122         wxString out;
 123         int const width = 20;
 124         int current = 0;
 125         for (size_t i = 0; i < in.Length(); ++i) {
 126                 if (in[i] == ' ' && current >= width) {
 127                         out += '\n';
 128                         current = 0;
 129                 } else {
 130                         out += in[i];
 131                         ++current;
 132                 }
 133         }
 134
 135         _tip = new StaticText (this, wxT (""));
 136         _tip->SetLabelMarkup (out);
 137 #ifdef DCPOMATIC_OSX
 138         /* Hack to stop hidden text on some versions of OS X */
 139         _tip->SetMinSize (wxSize (-1, 256));
 140 #endif
 141
 142         _position->Changed.connect    (boost::bind (&TimingPanel::position_changed, this));
 143         _move_to_start_of_reel->Bind  (wxEVT_BUTTON, boost::bind (&TimingPanel::move_to_start_of_reel_clicked, this));
 144         _full_length->Changed.connect (boost::bind (&TimingPanel::full_length_changed, this));
 145         _trim_start->Changed.connect  (boost::bind (&TimingPanel::trim_start_changed, this));
 146         _trim_start_to_playhead->Bind (wxEVT_BUTTON, boost::bind (&TimingPanel::trim_start_to_playhead_clicked, this));
 147         _trim_end->Changed.connect    (boost::bind (&TimingPanel::trim_end_changed, this));
 148         _trim_end_to_playhead->Bind   (wxEVT_BUTTON, boost::bind (&TimingPanel::trim_end_to_playhead_clicked, this));
 149         _play_length->Changed.connect (boost::bind (&TimingPanel::play_length_changed, this));
 150         _video_frame_rate->Bind       (wxEVT_TEXT, boost::bind (&TimingPanel::video_frame_rate_changed, this));
 151         _set_video_frame_rate->Bind   (wxEVT_BUTTON, boost::bind (&TimingPanel::set_video_frame_rate, this));
 152
 153         shared_ptr<FilmViewer> fv = _viewer.lock ();
 154         DCPOMATIC_ASSERT (fv);
 155         fv->ImageChanged.connect (boost::bind (&TimingPanel::setup_sensitivity, this));
 156
 157         setup_sensitivity ();
 158         add_to_grid ();
 159 }
 160
 161 void
 162 TimingPanel::add_to_grid ()
 163 {
 164         bool const full = Config::instance()->interface_complexity() == Config::INTERFACE_FULL;
 165
 166         int r = 0;
 167
 168         wxSizer* labels = new wxBoxSizer (wxHORIZONTAL);
 169         labels->Add (_h_label, 1, wxEXPAND);
 170         add_label_to_sizer (labels, _colon[0], false);
 171         labels->Add (_m_label, 1, wxEXPAND);
 172         add_label_to_sizer (labels, _colon[1], false);
 173         labels->Add (_s_label, 1, wxEXPAND);
 174         add_label_to_sizer (labels, _colon[2], false);
 175         labels->Add (_f_label, 1, wxEXPAND);
 176         _grid->Add (labels, wxGBPosition(r, 1));
 177         ++r;
 178
 179         add_label_to_sizer (_grid, _position_label, true, wxGBPosition(r, 0));
 180         _grid->Add (_position, wxGBPosition(r, 1));
 181         ++r;
 182
 183         _move_to_start_of_reel->Show (full);
 184         _full_length_label->Show (full);
 185         _full_length->Show (full);
 186         _play_length_label->Show (full);
 187         _play_length->Show (full);
 188         _video_frame_rate_label->Show (full);
 189         _video_frame_rate->Show (full);
 190         _set_video_frame_rate->Show (full);
 191         _tip->Show (full);
 192
 193         if (full) {
 194                 _grid->Add (_move_to_start_of_reel, wxGBPosition(r, 1));
 195                 ++r;
 196
 197                 add_label_to_sizer (_grid, _full_length_label, true, wxGBPosition(r, 0));
 198                 _grid->Add (_full_length, wxGBPosition(r, 1));
 199                 ++r;
 200         }
 201
 202         add_label_to_sizer (_grid, _trim_start_label, true, wxGBPosition(r, 0));
 203         _grid->Add (_trim_start, wxGBPosition(r, 1));
 204         ++r;
 205
 206         _grid->Add (_trim_start_to_playhead, wxGBPosition(r, 1));
 207         ++r;
 208
 209         add_label_to_sizer (_grid, _trim_end_label, true, wxGBPosition(r, 0));
 210         _grid->Add (_trim_end, wxGBPosition(r, 1));
 211         ++r;
 212
 213         _grid->Add (_trim_end_to_playhead, wxGBPosition(r, 1));
 214         ++r;
 215
 216         if (full) {
 217                 add_label_to_sizer (_grid, _play_length_label, true, wxGBPosition(r, 0));
 218                 _grid->Add (_play_length, wxGBPosition(r, 1));
 219                 ++r;
 220
 221                 {
 222                         add_label_to_sizer (_grid, _video_frame_rate_label, true, wxGBPosition(r, 0));
 223                         wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 224                         s->Add (_video_frame_rate, 1, wxEXPAND);
 225                         s->Add (_set_video_frame_rate, 0, wxLEFT | wxRIGHT, 8);
 226                         _grid->Add (s, wxGBPosition(r, 1), wxGBSpan(1, 2));
 227                 }
 228                 ++r;
 229
 230                 _grid->Add (_tip, wxGBPosition(r, 1), wxGBSpan(1, 2));
 231         }
 232
 233         /* Completely speculative fix for #891 */
 234         _grid->Layout ();
 235 }
 236
 237 void
 238 TimingPanel::update_full_length ()
 239 {
 240         set<DCPTime> check;
 241         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 242                 check.insert (i->full_length(_parent->film()));
 243         }
 244
 245         if (check.size() == 1) {
 246                 _full_length->set (_parent->selected().front()->full_length(_parent->film()), _parent->film()->video_frame_rate());
 247         } else {
 248                 _full_length->clear ();
 249         }
 250 }
 251
 252 void
 253 TimingPanel::update_play_length ()
 254 {
 255         set<DCPTime> check;
 256         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 257                 check.insert (i->length_after_trim(_parent->film()));
 258         }
 259
 260         if (check.size() == 1) {
 261                 _play_length->set (_parent->selected().front()->length_after_trim(_parent->film()), _parent->film()->video_frame_rate());
 262         } else {
 263                 _play_length->clear ();
 264         }
 265 }
 266
 267 void
 268 TimingPanel::film_content_changed (int property)
 269 {
 270         if (_film_content_changed_suspender.check(property)) {
 271                 return;
 272         }
 273
 274         int const film_video_frame_rate = _parent->film()->video_frame_rate ();
 275
 276         /* Here we check to see if we have exactly one different value of various
 277            properties, and fill the controls with that value if so.
 278         */
 279
 280         if (property == ContentProperty::POSITION) {
 281
 282                 set<DCPTime> check;
 283                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 284                         check.insert (i->position ());
 285                 }
 286
 287                 if (check.size() == 1) {
 288                         _position->set (_parent->selected().front()->position(), film_video_frame_rate);
 289                 } else {
 290                         _position->clear ();
 291                 }
 292
 293         } else if (
 294                 property == ContentProperty::LENGTH ||
 295                 property == ContentProperty::VIDEO_FRAME_RATE ||
 296                 property == VideoContentProperty::FRAME_TYPE
 297                 ) {
 298
 299                 update_full_length ();
 300
 301         } else if (property == ContentProperty::TRIM_START) {
 302
 303                 set<ContentTime> check;
 304                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 305                         check.insert (i->trim_start ());
 306                 }
 307
 308                 if (check.size() == 1) {
 309                         _trim_start->set (_parent->selected().front()->trim_start (), film_video_frame_rate);
 310                 } else {
 311                         _trim_start->clear ();
 312                 }
 313
 314         } else if (property == ContentProperty::TRIM_END) {
 315
 316                 set<ContentTime> check;
 317                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 318                         check.insert (i->trim_end ());
 319                 }
 320
 321                 if (check.size() == 1) {
 322                         _trim_end->set (_parent->selected().front()->trim_end (), film_video_frame_rate);
 323                 } else {
 324                         _trim_end->clear ();
 325                 }
 326         }
 327
 328         if (
 329                 property == ContentProperty::LENGTH ||
 330                 property == ContentProperty::TRIM_START ||
 331                 property == ContentProperty::TRIM_END ||
 332                 property == ContentProperty::VIDEO_FRAME_RATE ||
 333                 property == VideoContentProperty::FRAME_TYPE
 334                 ) {
 335
 336                 update_play_length ();
 337         }
 338
 339         if (property == ContentProperty::VIDEO_FRAME_RATE) {
 340                 set<double> check_vc;
 341                 shared_ptr<const Content> content;
 342                 int count_ac = 0;
 343                 int count_sc = 0;
 344                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 345                         if (i->video && i->video_frame_rate()) {
 346                                 check_vc.insert (i->video_frame_rate().get());
 347                                 content = i;
 348                         }
 349                         if (i->audio && i->video_frame_rate()) {
 350                                 ++count_ac;
 351                                 content = i;
 352                         }
 353                         if (!i->text.empty() && i->video_frame_rate()) {
 354                                 ++count_sc;
 355                                 content = i;
 356                         }
 357
 358                 }
 359
 360                 bool const single_frame_image_content = content && dynamic_pointer_cast<const ImageContent> (content) && content->number_of_paths() == 1;
 361
 362                 if ((check_vc.size() == 1 || count_ac == 1 || count_sc == 1) && !single_frame_image_content) {
 363                         checked_set (_video_frame_rate, locale_convert<string> (content->video_frame_rate().get(), 5));
 364                         _video_frame_rate->Enable (true);
 365                 } else {
 366                         checked_set (_video_frame_rate, wxT (""));
 367                         _video_frame_rate->Enable (false);
 368                 }
 369         }
 370
 371         bool have_still = false;
 372         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 373                 shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
 374                 if (ic && ic->still ()) {
 375                         have_still = true;
 376                 }
 377         }
 378
 379         _full_length->set_editable (have_still);
 380         _play_length->set_editable (!have_still);
 381         _set_video_frame_rate->Enable (false);
 382         setup_sensitivity ();
 383 }
 384
 385 void
 386 TimingPanel::position_changed ()
 387 {
 388         DCPTime const pos = _position->get (_parent->film()->video_frame_rate ());
 389         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 390                 i->set_position (_parent->film(), pos);
 391         }
 392 }
 393
 394 void
 395 TimingPanel::full_length_changed ()
 396 {
 397         int const vfr = _parent->film()->video_frame_rate ();
 398         Frame const len = _full_length->get (vfr).frames_round (vfr);
 399         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 400                 shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (i);
 401                 if (ic && ic->still ()) {
 402                         ic->video->set_length (len);
 403                 }
 404         }
 405 }
 406
 407 void
 408 TimingPanel::trim_start_changed ()
 409 {
 410         shared_ptr<FilmViewer> fv = _viewer.lock ();
 411         if (!fv) {
 412                 return;
 413         }
 414
 415         DCPTime const ph = fv->position ();
 416
 417         fv->set_coalesce_player_changes (true);
 418
 419         shared_ptr<Content> ref;
 420         optional<FrameRateChange> ref_frc;
 421         optional<DCPTime> ref_ph;
 422
 423         Suspender::Block bl = _film_content_changed_suspender.block ();
 424         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 425                 if (i->position() <= ph && ph < i->end(_parent->film())) {
 426                         /* The playhead is in i.  Use it as a reference to work out
 427                            where to put the playhead post-trim; we're trying to keep the playhead
 428                            at the same frame of content that we're looking at pre-trim.
 429                         */
 430                         ref = i;
 431                         ref_frc = _parent->film()->active_frame_rate_change (i->position ());
 432                         ref_ph = ph - i->position() + DCPTime (i->trim_start(), ref_frc.get());
 433                 }
 434
 435                 ContentTime const trim = _trim_start->get (i->video_frame_rate().get_value_or(_parent->film()->video_frame_rate()));
 436                 i->set_trim_start (trim);
 437         }
 438
 439         if (ref) {
 440                 fv->seek (max(DCPTime(), ref_ph.get() + ref->position() - DCPTime(ref->trim_start(), ref_frc.get())), true);
 441         }
 442
 443         fv->set_coalesce_player_changes (false);
 444 }
 445
 446 void
 447 TimingPanel::trim_end_changed ()
 448 {
 449         shared_ptr<FilmViewer> fv = _viewer.lock ();
 450         if (!fv) {
 451                 return;
 452         }
 453
 454         fv->set_coalesce_player_changes (true);
 455
 456         Suspender::Block bl = _film_content_changed_suspender.block ();
 457         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 458                 ContentTime const trim = _trim_end->get (i->video_frame_rate().get_value_or(_parent->film()->video_frame_rate()));
 459                 i->set_trim_end (trim);
 460         }
 461
 462         /* XXX: maybe playhead-off-the-end-of-the-film should be handled elsewhere */
 463         if (fv->position() >= _parent->film()->length()) {
 464                 fv->seek (_parent->film()->length() - DCPTime::from_frames(1, _parent->film()->video_frame_rate()), true);
 465         }
 466
 467         fv->set_coalesce_player_changes (false);
 468 }
 469
 470 void
 471 TimingPanel::play_length_changed ()
 472 {
 473         DCPTime const play_length = _play_length->get (_parent->film()->video_frame_rate());
 474         Suspender::Block bl = _film_content_changed_suspender.block ();
 475         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 476                 FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
 477                 i->set_trim_end (
 478                         ContentTime (max(DCPTime(), i->full_length(_parent->film()) - play_length), frc) - i->trim_start()
 479                         );
 480         }
 481 }
 482
 483 void
 484 TimingPanel::video_frame_rate_changed ()
 485 {
 486         bool enable = true;
 487         if (_video_frame_rate->GetValue() == wxT("")) {
 488                 /* No frame rate has been entered; if the user clicks "set" now it would unset the video
 489                    frame rate in the selected content.  This can't be allowed for some content types.
 490                 */
 491                 BOOST_FOREACH (shared_ptr<Content> i, _parent->selected()) {
 492                         if (
 493                                 dynamic_pointer_cast<DCPContent>(i) ||
 494                                 dynamic_pointer_cast<FFmpegContent>(i)
 495                                 ) {
 496                                 enable = false;
 497                         }
 498                 }
 499         }
 500
 501         _set_video_frame_rate->Enable (enable);
 502 }
 503
 504 void
 505 TimingPanel::set_video_frame_rate ()
 506 {
 507         optional<double> fr;
 508         if (_video_frame_rate->GetValue() != wxT("")) {
 509                 fr = locale_convert<double> (wx_to_std (_video_frame_rate->GetValue ()));
 510         }
 511         Suspender::Block bl = _film_content_changed_suspender.block ();
 512         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 513                 if (fr) {
 514                         i->set_video_frame_rate (*fr);
 515                 } else {
 516                         i->unset_video_frame_rate ();
 517                 }
 518         }
 519
 520         _set_video_frame_rate->Enable (false);
 521 }
 522
 523 void
 524 TimingPanel::content_selection_changed ()
 525 {
 526         setup_sensitivity ();
 527
 528         film_content_changed (ContentProperty::POSITION);
 529         film_content_changed (ContentProperty::LENGTH);
 530         film_content_changed (ContentProperty::TRIM_START);
 531         film_content_changed (ContentProperty::TRIM_END);
 532         film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 533 }
 534
 535 void
 536 TimingPanel::film_changed (Film::Property p)
 537 {
 538         if (p == Film::VIDEO_FRAME_RATE) {
 539                 update_full_length ();
 540                 update_play_length ();
 541         }
 542 }
 543
 544 void
 545 TimingPanel::trim_start_to_playhead_clicked ()
 546 {
 547         shared_ptr<FilmViewer> fv = _viewer.lock ();
 548         if (!fv) {
 549                 return;
 550         }
 551
 552         shared_ptr<const Film> film = _parent->film ();
 553         DCPTime const ph = fv->position().floor (film->video_frame_rate ());
 554         optional<DCPTime> new_ph;
 555
 556         fv->set_coalesce_player_changes (true);
 557
 558         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 559                 if (i->position() < ph && ph < i->end(film)) {
 560                         FrameRateChange const frc = film->active_frame_rate_change (i->position());
 561                         i->set_trim_start (i->trim_start() + ContentTime (ph - i->position(), frc));
 562                         new_ph = i->position ();
 563                 }
 564         }
 565
 566         fv->set_coalesce_player_changes (false);
 567
 568         if (new_ph) {
 569                 fv->seek (new_ph.get(), true);
 570         }
 571 }
 572
 573 void
 574 TimingPanel::trim_end_to_playhead_clicked ()
 575 {
 576         shared_ptr<FilmViewer> fv = _viewer.lock ();
 577         if (!fv) {
 578                 return;
 579         }
 580
 581         shared_ptr<const Film> film = _parent->film ();
 582         DCPTime const ph = fv->position().floor (film->video_frame_rate ());
 583         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 584                 if (i->position() < ph && ph < i->end(film)) {
 585                         FrameRateChange const frc = film->active_frame_rate_change (i->position ());
 586                         i->set_trim_end (ContentTime(i->position() + i->full_length(film) - ph - DCPTime::from_frames(1, frc.dcp), frc) - i->trim_start());
 587                 }
 588         }
 589 }
 590
 591 void
 592 TimingPanel::setup_sensitivity ()
 593 {
 594         bool const e = !_parent->selected().empty ();
 595
 596         _position->Enable (e);
 597         _move_to_start_of_reel->Enable (e);
 598         _full_length->Enable (e);
 599         _trim_start->Enable (e);
 600         _trim_end->Enable (e);
 601         _play_length->Enable (e);
 602         _video_frame_rate->Enable (e);
 603
 604         shared_ptr<FilmViewer> fv = _viewer.lock ();
 605         DCPOMATIC_ASSERT (fv);
 606         DCPTime const ph = fv->position ();
 607         bool any_over_ph = false;
 608         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 609                 if (i->position() <= ph && ph < i->end(_parent->film())) {
 610                         any_over_ph = true;
 611                 }
 612         }
 613
 614         _trim_start_to_playhead->Enable (any_over_ph);
 615         _trim_end_to_playhead->Enable (any_over_ph);
 616 }
 617
 618 void
 619 TimingPanel::move_to_start_of_reel_clicked ()
 620 {
 621         /* Find common position of all selected content, if it exists */
 622
 623         optional<DCPTime> position;
 624         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 625                 if (!position) {
 626                         position = i->position();
 627                 } else {
 628                         if (position.get() != i->position()) {
 629                                 position.reset ();
 630                                 break;
 631                         }
 632                 }
 633         }
 634
 635         MoveToDialog* d = new MoveToDialog (this, position, _parent->film());
 636
 637         if (d->ShowModal() == wxID_OK) {
 638                 BOOST_FOREACH (shared_ptr<Content> i, _parent->selected()) {
 639                         i->set_position (_parent->film(), d->position());
 640                 }
 641         }
 642         d->Destroy ();
 643 }