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