src/wx/timing_panel.cc

   1 /*
   2     Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #include "timing_panel.h"
  21 #include "wx_util.h"
  22 #include "film_viewer.h"
  23 #include "timecode.h"
  24 #include "content_panel.h"
  25 #include "lib/content.h"
  26 #include "lib/image_content.h"
  27 #include "lib/raw_convert.h"
  28 #include "lib/subtitle_content.h"
  29 #include "lib/dcp_subtitle_content.h"
  30 #include "lib/audio_content.h"
  31 #include "lib/text_subtitle_content.h"
  32 #include "lib/video_content.h"
  33 #include <boost/foreach.hpp>
  34 #include <set>
  35 #include <iostream>
  36
  37 using std::cout;
  38 using std::string;
  39 using std::set;
  40 using boost::shared_ptr;
  41 using boost::dynamic_pointer_cast;
  42 using boost::optional;
  43
  44 TimingPanel::TimingPanel (ContentPanel* p, FilmViewer* viewer)
  45         /* horrid hack for apparent lack of context support with wxWidgets i18n code */
  46         /// TRANSLATORS: translate the word "Timing" here; do not include the "Timing|" prefix
  47         : ContentSubPanel (p, S_("Timing|Timing"))
  48         , _viewer (viewer)
  49 {
  50         wxFlexGridSizer* grid = new wxFlexGridSizer (2, 4, 4);
  51         _sizer->Add (grid, 0, wxALL, 8);
  52
  53         wxSize size = TimecodeBase::size (this);
  54
  55         wxSizer* labels = new wxBoxSizer (wxHORIZONTAL);
  56         //// TRANSLATORS: this is an abbreviation for "hours"
  57         wxStaticText* t = new wxStaticText (this, wxID_ANY, _("h"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  58 #ifdef DCPOMATIC_LINUX
  59         /* Hack to work around failure to centre text on GTK */
  60         gtk_label_set_line_wrap (GTK_LABEL (t->GetHandle()), FALSE);
  61 #endif
  62         labels->Add (t, 1, wxEXPAND);
  63         add_label_to_sizer (labels, this, wxT (":"), false);
  64         //// TRANSLATORS: this is an abbreviation for "minutes"
  65         t = new wxStaticText (this, wxID_ANY, _("m"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  66 #ifdef DCPOMATIC_LINUX
  67         gtk_label_set_line_wrap (GTK_LABEL (t->GetHandle()), FALSE);
  68 #endif
  69         labels->Add (t, 1, wxEXPAND);
  70         add_label_to_sizer (labels, this, wxT (":"), false);
  71         //// TRANSLATORS: this is an abbreviation for "seconds"
  72         t = new wxStaticText (this, wxID_ANY, _("s"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  73 #ifdef DCPOMATIC_LINUX
  74         gtk_label_set_line_wrap (GTK_LABEL (t->GetHandle()), FALSE);
  75 #endif
  76         labels->Add (t, 1, wxEXPAND);
  77         add_label_to_sizer (labels, this, wxT (":"), false);
  78         //// TRANSLATORS: this is an abbreviation for "frames"
  79         t = new wxStaticText (this, wxID_ANY, _("f"), wxDefaultPosition, size, wxALIGN_CENTRE_HORIZONTAL);
  80 #ifdef DCPOMATIC_LINUX
  81         gtk_label_set_line_wrap (GTK_LABEL (t->GetHandle()), FALSE);
  82 #endif
  83         labels->Add (t, 1, wxEXPAND);
  84         grid->Add (new wxStaticText (this, wxID_ANY, wxT ("")));
  85         grid->Add (labels);
  86
  87         add_label_to_sizer (grid, this, _("Position"), true);
  88         _position = new Timecode<DCPTime> (this);
  89         grid->Add (_position);
  90         add_label_to_sizer (grid, this, _("Full length"), true);
  91         _full_length = new Timecode<DCPTime> (this);
  92         grid->Add (_full_length);
  93         add_label_to_sizer (grid, this, _("Trim from start"), true);
  94         _trim_start = new Timecode<ContentTime> (this);
  95         grid->Add (_trim_start);
  96         _trim_start_to_playhead = new wxButton (this, wxID_ANY, _("Trim up to current position"));
  97         grid->AddSpacer (0);
  98         grid->Add (_trim_start_to_playhead);
  99         add_label_to_sizer (grid, this, _("Trim from end"), true);
 100         _trim_end = new Timecode<ContentTime> (this);
 101         grid->Add (_trim_end);
 102         _trim_end_to_playhead = new wxButton (this, wxID_ANY, _("Trim after current position"));
 103         grid->AddSpacer (0);
 104         grid->Add (_trim_end_to_playhead);
 105         add_label_to_sizer (grid, this, _("Play length"), true);
 106         _play_length = new Timecode<DCPTime> (this);
 107         grid->Add (_play_length);
 108
 109         {
 110                 add_label_to_sizer (grid, this, _("Video frame rate"), true);
 111                 wxBoxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 112                 _video_frame_rate = new wxTextCtrl (this, wxID_ANY);
 113                 s->Add (_video_frame_rate, 1, wxEXPAND);
 114                 _set_video_frame_rate = new wxButton (this, wxID_ANY, _("Set"));
 115                 _set_video_frame_rate->Enable (false);
 116                 s->Add (_set_video_frame_rate, 0, wxLEFT | wxRIGHT, 8);
 117                 grid->Add (s, 1, wxEXPAND);
 118         }
 119
 120         grid->AddSpacer (0);
 121
 122         /* We can't use Wrap() here as it doesn't work with markup:
 123          * http://trac.wxwidgets.org/ticket/13389
 124          */
 125
 126         wxString in = _("<i>Only change this if it the content's frame rate has been read incorrectly.</i>");
 127         wxString out;
 128         int const width = 20;
 129         int current = 0;
 130         for (size_t i = 0; i < in.Length(); ++i) {
 131                 if (in[i] == ' ' && current >= width) {
 132                         out += '\n';
 133                         current = 0;
 134                 } else {
 135                         out += in[i];
 136                         ++current;
 137                 }
 138         }
 139
 140         t = new wxStaticText (this, wxID_ANY, wxT (""));
 141         t->SetLabelMarkup (out);
 142         grid->Add (t, 0, wxALIGN_CENTER_VERTICAL | wxLEFT | wxRIGHT, 6);
 143
 144         _position->Changed.connect    (boost::bind (&TimingPanel::position_changed, this));
 145         _full_length->Changed.connect (boost::bind (&TimingPanel::full_length_changed, this));
 146         _trim_start->Changed.connect  (boost::bind (&TimingPanel::trim_start_changed, this));
 147         _trim_start_to_playhead->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&TimingPanel::trim_start_to_playhead_clicked, this));
 148         _trim_end->Changed.connect    (boost::bind (&TimingPanel::trim_end_changed, this));
 149         _trim_end_to_playhead->Bind   (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&TimingPanel::trim_end_to_playhead_clicked, this));
 150         _play_length->Changed.connect (boost::bind (&TimingPanel::play_length_changed, this));
 151         _video_frame_rate->Bind       (wxEVT_COMMAND_TEXT_UPDATED, boost::bind (&TimingPanel::video_frame_rate_changed, this));
 152         _set_video_frame_rate->Bind   (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&TimingPanel::set_video_frame_rate, this));
 153
 154         _viewer->ImageChanged.connect (boost::bind (&TimingPanel::setup_sensitivity, this));
 155
 156         setup_sensitivity ();
 157 }
 158
 159 void
 160 TimingPanel::update_full_length ()
 161 {
 162         set<DCPTime> check;
 163         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 164                 check.insert (i->full_length ());
 165         }
 166
 167         if (check.size() == 1) {
 168                 _full_length->set (_parent->selected().front()->full_length (), _parent->film()->video_frame_rate ());
 169         } else {
 170                 _full_length->clear ();
 171         }
 172 }
 173
 174 void
 175 TimingPanel::update_play_length ()
 176 {
 177         set<DCPTime> check;
 178         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 179                 check.insert (i->length_after_trim ());
 180         }
 181
 182         if (check.size() == 1) {
 183                 _play_length->set (_parent->selected().front()->length_after_trim (), _parent->film()->video_frame_rate ());
 184         } else {
 185                 _play_length->clear ();
 186         }
 187 }
 188
 189 void
 190 TimingPanel::film_content_changed (int property)
 191 {
 192         int const film_video_frame_rate = _parent->film()->video_frame_rate ();
 193
 194         /* Here we check to see if we have exactly one different value of various
 195            properties, and fill the controls with that value if so.
 196         */
 197
 198         if (property == ContentProperty::POSITION) {
 199
 200                 set<DCPTime> check;
 201                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 202                         check.insert (i->position ());
 203                 }
 204
 205                 if (check.size() == 1) {
 206                         _position->set (_parent->selected().front()->position(), film_video_frame_rate);
 207                 } else {
 208                         _position->clear ();
 209                 }
 210
 211         } else if (
 212                 property == ContentProperty::LENGTH ||
 213                 property == ContentProperty::VIDEO_FRAME_RATE ||
 214                 property == VideoContentProperty::FRAME_TYPE
 215                 ) {
 216
 217                 update_full_length ();
 218
 219         } else if (property == ContentProperty::TRIM_START) {
 220
 221                 set<ContentTime> check;
 222                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 223                         check.insert (i->trim_start ());
 224                 }
 225
 226                 if (check.size() == 1) {
 227                         _trim_start->set (_parent->selected().front()->trim_start (), film_video_frame_rate);
 228                 } else {
 229                         _trim_start->clear ();
 230                 }
 231
 232         } else if (property == ContentProperty::TRIM_END) {
 233
 234                 set<ContentTime> check;
 235                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 236                         check.insert (i->trim_end ());
 237                 }
 238
 239                 if (check.size() == 1) {
 240                         _trim_end->set (_parent->selected().front()->trim_end (), film_video_frame_rate);
 241                 } else {
 242                         _trim_end->clear ();
 243                 }
 244         }
 245
 246         if (
 247                 property == ContentProperty::LENGTH ||
 248                 property == ContentProperty::TRIM_START ||
 249                 property == ContentProperty::TRIM_END ||
 250                 property == ContentProperty::VIDEO_FRAME_RATE ||
 251                 property == VideoContentProperty::FRAME_TYPE
 252                 ) {
 253
 254                 update_play_length ();
 255         }
 256
 257         if (property == ContentProperty::VIDEO_FRAME_RATE) {
 258                 set<double> check_vc;
 259                 shared_ptr<const Content> content;
 260                 int count_ac = 0;
 261                 int count_sc = 0;
 262                 BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 263                         if (i->video && i->video_frame_rate()) {
 264                                 check_vc.insert (i->video_frame_rate().get());
 265                                 content = i;
 266                         }
 267                         if (i->audio && i->video_frame_rate()) {
 268                                 ++count_ac;
 269                                 content = i;
 270                         }
 271                         if (i->subtitle && i->video_frame_rate()) {
 272                                 ++count_sc;
 273                                 content = i;
 274                         }
 275
 276                 }
 277
 278                 bool const single_frame_image_content = content && dynamic_pointer_cast<const ImageContent> (content) && content->number_of_paths() == 1;
 279
 280                 if ((check_vc.size() == 1 || count_ac == 1 || count_sc == 1) && !single_frame_image_content) {
 281                         checked_set (_video_frame_rate, raw_convert<string> (content->video_frame_rate().get(), 5));
 282                         _video_frame_rate->Enable (true);
 283                 } else {
 284                         checked_set (_video_frame_rate, wxT (""));
 285                         _video_frame_rate->Enable (false);
 286                 }
 287         }
 288
 289         bool have_still = false;
 290         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 291                 shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
 292                 if (ic && ic->still ()) {
 293                         have_still = true;
 294                 }
 295         }
 296
 297         _full_length->set_editable (have_still);
 298         _play_length->set_editable (!have_still);
 299         _set_video_frame_rate->Enable (false);
 300         setup_sensitivity ();
 301 }
 302
 303 void
 304 TimingPanel::position_changed ()
 305 {
 306         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 307                 i->set_position (_position->get (_parent->film()->video_frame_rate ()));
 308         }
 309 }
 310
 311 void
 312 TimingPanel::full_length_changed ()
 313 {
 314         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 315                 shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (i);
 316                 if (ic && ic->still ()) {
 317                         int const vfr = _parent->film()->video_frame_rate ();
 318                         ic->video->set_length (_full_length->get (vfr).frames_round (vfr));
 319                 }
 320         }
 321 }
 322
 323 void
 324 TimingPanel::trim_start_changed ()
 325 {
 326         DCPTime const ph = _viewer->position ();
 327
 328         _viewer->set_coalesce_player_changes (true);
 329
 330         shared_ptr<Content> ref;
 331         optional<FrameRateChange> ref_frc;
 332         optional<DCPTime> ref_ph;
 333         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 334                 if (i->position() <= ph && ph < i->end()) {
 335                         /* The playhead is in i.  Use it as a reference to work out
 336                            where to put the playhead post-trim; we're trying to keep the playhead
 337                            at the same frame of content that we're looking at pre-trim.
 338                         */
 339                         ref = i;
 340                         ref_frc = _parent->film()->active_frame_rate_change (i->position ());
 341                         ref_ph = ph - i->position() + DCPTime (i->trim_start(), ref_frc.get());
 342                 }
 343
 344                 i->set_trim_start (_trim_start->get (_parent->film()->video_frame_rate ()));
 345         }
 346
 347         if (ref) {
 348                 _viewer->set_position (max (DCPTime(), ref_ph.get() + ref->position() - DCPTime (ref->trim_start(), ref_frc.get())));
 349         }
 350
 351         _viewer->set_coalesce_player_changes (false);
 352 }
 353
 354 void
 355 TimingPanel::trim_end_changed ()
 356 {
 357         _viewer->set_coalesce_player_changes (true);
 358
 359         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 360                 i->set_trim_end (_trim_end->get (_parent->film()->video_frame_rate ()));
 361         }
 362
 363         /* XXX: maybe playhead-off-the-end-of-the-film should be handled elsewhere */
 364         if (_viewer->position() >= _parent->film()->length()) {
 365                 _viewer->set_position (_parent->film()->length() - DCPTime::from_frames (1, _parent->film()->video_frame_rate()));
 366         }
 367
 368         _viewer->set_coalesce_player_changes (true);
 369 }
 370
 371 void
 372 TimingPanel::play_length_changed ()
 373 {
 374         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 375                 FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
 376                 i->set_trim_end (
 377                         ContentTime (i->full_length() - _play_length->get (_parent->film()->video_frame_rate()), frc)
 378                         - i->trim_start ()
 379                         );
 380         }
 381 }
 382
 383 void
 384 TimingPanel::video_frame_rate_changed ()
 385 {
 386         _set_video_frame_rate->Enable (true);
 387 }
 388
 389 void
 390 TimingPanel::set_video_frame_rate ()
 391 {
 392         double const fr = raw_convert<double> (wx_to_std (_video_frame_rate->GetValue ()));
 393         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 394                 i->set_video_frame_rate (fr);
 395         }
 396
 397         _set_video_frame_rate->Enable (false);
 398 }
 399
 400 void
 401 TimingPanel::content_selection_changed ()
 402 {
 403         setup_sensitivity ();
 404
 405         film_content_changed (ContentProperty::POSITION);
 406         film_content_changed (ContentProperty::LENGTH);
 407         film_content_changed (ContentProperty::TRIM_START);
 408         film_content_changed (ContentProperty::TRIM_END);
 409         film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 410 }
 411
 412 void
 413 TimingPanel::film_changed (Film::Property p)
 414 {
 415         if (p == Film::VIDEO_FRAME_RATE) {
 416                 update_full_length ();
 417                 update_play_length ();
 418         }
 419 }
 420
 421 void
 422 TimingPanel::trim_start_to_playhead_clicked ()
 423 {
 424         DCPTime const ph = _viewer->position ();
 425         optional<DCPTime> new_ph;
 426
 427         _viewer->set_coalesce_player_changes (true);
 428
 429         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 430                 if (i->position() < ph && ph < i->end ()) {
 431                         FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
 432                         i->set_trim_start (i->trim_start() + ContentTime (ph - i->position (), frc));
 433                         new_ph = i->position ();
 434                 }
 435         }
 436
 437         if (new_ph) {
 438                 _viewer->set_position (new_ph.get());
 439         }
 440
 441         _viewer->set_coalesce_player_changes (false);
 442 }
 443
 444 void
 445 TimingPanel::trim_end_to_playhead_clicked ()
 446 {
 447         DCPTime const ph = _viewer->position ();
 448         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
 449                 if (i->position() < ph && ph < i->end ()) {
 450                         FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
 451                         i->set_trim_end (ContentTime (i->position() + i->full_length() - ph - DCPTime::from_frames (1, frc.dcp), frc) - i->trim_start());
 452                 }
 453         }
 454 }
 455
 456 void
 457 TimingPanel::setup_sensitivity ()
 458 {
 459         bool const e = !_parent->selected().empty ();
 460
 461         _position->Enable (e);
 462         _full_length->Enable (e);
 463         _trim_start->Enable (e);
 464         _trim_end->Enable (e);
 465         _play_length->Enable (e);
 466         _video_frame_rate->Enable (e);
 467
 468         DCPTime const ph = _viewer->position ();
 469         bool any_over_ph = false;
 470         BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
 471                 if (i->position() <= ph && ph < i->end()) {
 472                         any_over_ph = true;
 473                 }
 474         }
 475
 476         _trim_start_to_playhead->Enable (any_over_ph);
 477         _trim_end_to_playhead->Enable (any_over_ph);
 478 }