No-op; fix GPL address and use the explicit-program-name version.
[dcpomatic.git] / src / wx / timing_panel.cc
index e416a671c10bedb74792fd35a86cfe658134a72b..63606f46c734ab1d939497e03e7e185d4bf0ef1c 100644 (file)
@@ -1,19 +1,20 @@
 /*
-    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
-    This program is distributed in the hope that it will be useful,
+    DCP-o-matic is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
@@ -27,7 +28,9 @@
 #include "lib/raw_convert.h"
 #include "lib/subtitle_content.h"
 #include "lib/dcp_subtitle_content.h"
-#include "lib/subrip_content.h"
+#include "lib/audio_content.h"
+#include "lib/text_subtitle_content.h"
+#include "lib/video_content.h"
 #include <boost/foreach.hpp>
 #include <set>
 #include <iostream>
@@ -37,9 +40,11 @@ using std::string;
 using std::set;
 using boost::shared_ptr;
 using boost::dynamic_pointer_cast;
+using boost::optional;
 
 TimingPanel::TimingPanel (ContentPanel* p, FilmViewer* viewer)
        /* horrid hack for apparent lack of context support with wxWidgets i18n code */
+       /// TRANSLATORS: translate the word "Timing" here; do not include the "Timing|" prefix
        : ContentSubPanel (p, S_("Timing|Timing"))
        , _viewer (viewer)
 {
@@ -146,6 +151,10 @@ TimingPanel::TimingPanel (ContentPanel* p, FilmViewer* viewer)
        _play_length->Changed.connect (boost::bind (&TimingPanel::play_length_changed, this));
        _video_frame_rate->Bind       (wxEVT_COMMAND_TEXT_UPDATED, boost::bind (&TimingPanel::video_frame_rate_changed, this));
        _set_video_frame_rate->Bind   (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&TimingPanel::set_video_frame_rate, this));
+
+       _viewer->ImageChanged.connect (boost::bind (&TimingPanel::setup_sensitivity, this));
+
+       setup_sensitivity ();
 }
 
 void
@@ -202,9 +211,8 @@ TimingPanel::film_content_changed (int property)
 
        } else if (
                property == ContentProperty::LENGTH ||
-               property == VideoContentProperty::VIDEO_FRAME_RATE ||
-               property == VideoContentProperty::VIDEO_FRAME_TYPE ||
-               property == SubtitleContentProperty::SUBTITLE_VIDEO_FRAME_RATE
+               property == ContentProperty::VIDEO_FRAME_RATE ||
+               property == VideoContentProperty::FRAME_TYPE
                ) {
 
                update_full_length ();
@@ -240,39 +248,38 @@ TimingPanel::film_content_changed (int property)
                property == ContentProperty::LENGTH ||
                property == ContentProperty::TRIM_START ||
                property == ContentProperty::TRIM_END ||
-               property == VideoContentProperty::VIDEO_FRAME_RATE ||
-               property == VideoContentProperty::VIDEO_FRAME_TYPE ||
-               property == SubtitleContentProperty::SUBTITLE_VIDEO_FRAME_RATE
+               property == ContentProperty::VIDEO_FRAME_RATE ||
+               property == VideoContentProperty::FRAME_TYPE
                ) {
 
                update_play_length ();
        }
 
-       if (property == VideoContentProperty::VIDEO_FRAME_RATE || property == SubtitleContentProperty::SUBTITLE_VIDEO_FRAME_RATE) {
+       if (property == ContentProperty::VIDEO_FRAME_RATE) {
                set<double> check_vc;
-               shared_ptr<const VideoContent> vc;
+               shared_ptr<const Content> content;
+               int count_ac = 0;
                int count_sc = 0;
-               shared_ptr<const SubtitleContent> sc;
                BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
-                       shared_ptr<const VideoContent> vt = dynamic_pointer_cast<const VideoContent> (i);
-                       if (vt) {
-                               check_vc.insert (vt->video_frame_rate ());
-                               vc = vt;
+                       if (i->video && i->video_frame_rate()) {
+                               check_vc.insert (i->video_frame_rate().get());
+                               content = i;
+                       }
+                       if (i->audio && i->video_frame_rate()) {
+                               ++count_ac;
+                               content = i;
                        }
-                       shared_ptr<const SubtitleContent> st = dynamic_pointer_cast<const SubtitleContent> (i);
-                       if (st) {
+                       if (i->subtitle && i->video_frame_rate()) {
                                ++count_sc;
-                               sc = st;
+                               content = i;
                        }
 
                }
 
-               if (check_vc.size() == 1 || count_sc == 1) {
-                       if (vc) {
-                               checked_set (_video_frame_rate, raw_convert<string> (vc->video_frame_rate (), 5));
-                       } else if (sc) {
-                               checked_set (_video_frame_rate, raw_convert<string> (sc->subtitle_video_frame_rate (), 5));
-                       }
+               bool const single_frame_image_content = content && dynamic_pointer_cast<const ImageContent> (content) && content->number_of_paths() == 1;
+
+               if ((check_vc.size() == 1 || count_ac == 1 || count_sc == 1) && !single_frame_image_content) {
+                       checked_set (_video_frame_rate, raw_convert<string> (content->video_frame_rate().get(), 5));
                        _video_frame_rate->Enable (true);
                } else {
                        checked_set (_video_frame_rate, wxT (""));
@@ -291,6 +298,7 @@ TimingPanel::film_content_changed (int property)
        _full_length->set_editable (have_still);
        _play_length->set_editable (!have_still);
        _set_video_frame_rate->Enable (false);
+       setup_sensitivity ();
 }
 
 void
@@ -308,7 +316,7 @@ TimingPanel::full_length_changed ()
                shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (i);
                if (ic && ic->still ()) {
                        int const vfr = _parent->film()->video_frame_rate ();
-                       ic->set_video_length (_full_length->get (vfr).frames_round (vfr));
+                       ic->video->set_length (_full_length->get (vfr).frames_round (vfr));
                }
        }
 }
@@ -316,18 +324,49 @@ TimingPanel::full_length_changed ()
 void
 TimingPanel::trim_start_changed ()
 {
+       DCPTime const ph = _viewer->position ();
+
+       _viewer->set_coalesce_player_changes (true);
+
+       shared_ptr<Content> ref;
+       optional<FrameRateChange> ref_frc;
+       optional<DCPTime> ref_ph;
        BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
+               if (i->position() <= ph && ph < i->end()) {
+                       /* The playhead is in i.  Use it as a reference to work out
+                          where to put the playhead post-trim; we're trying to keep the playhead
+                          at the same frame of content that we're looking at pre-trim.
+                       */
+                       ref = i;
+                       ref_frc = _parent->film()->active_frame_rate_change (i->position ());
+                       ref_ph = ph - i->position() + DCPTime (i->trim_start(), ref_frc.get());
+               }
+
                i->set_trim_start (_trim_start->get (_parent->film()->video_frame_rate ()));
        }
-}
 
+       if (ref) {
+               _viewer->set_position (max (DCPTime(), ref_ph.get() + ref->position() - DCPTime (ref->trim_start(), ref_frc.get())));
+       }
+
+       _viewer->set_coalesce_player_changes (false);
+}
 
 void
 TimingPanel::trim_end_changed ()
 {
+       _viewer->set_coalesce_player_changes (true);
+
        BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
                i->set_trim_end (_trim_end->get (_parent->film()->video_frame_rate ()));
        }
+
+       /* XXX: maybe playhead-off-the-end-of-the-film should be handled elsewhere */
+       if (_viewer->position() >= _parent->film()->length()) {
+               _viewer->set_position (_parent->film()->length() - DCPTime::from_frames (1, _parent->film()->video_frame_rate()));
+       }
+
+       _viewer->set_coalesce_player_changes (true);
 }
 
 void
@@ -351,39 +390,24 @@ TimingPanel::video_frame_rate_changed ()
 void
 TimingPanel::set_video_frame_rate ()
 {
+       double const fr = raw_convert<double> (wx_to_std (_video_frame_rate->GetValue ()));
        BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
-               shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (i);
-               shared_ptr<DCPSubtitleContent> dsc = dynamic_pointer_cast<DCPSubtitleContent> (i);
-               shared_ptr<SubRipContent> ssc = dynamic_pointer_cast<SubRipContent> (i);
-               if (vc) {
-                       vc->set_video_frame_rate (raw_convert<double> (wx_to_std (_video_frame_rate->GetValue ())));
-               } else if (dsc) {
-                       dsc->set_subtitle_video_frame_rate (raw_convert<double> (wx_to_std (_video_frame_rate->GetValue ())));
-               } else if (ssc) {
-                       ssc->set_subtitle_video_frame_rate (raw_convert<double> (wx_to_std (_video_frame_rate->GetValue ())));
-               }
-               _set_video_frame_rate->Enable (false);
+               i->set_video_frame_rate (fr);
        }
+
+       _set_video_frame_rate->Enable (false);
 }
 
 void
 TimingPanel::content_selection_changed ()
 {
-       bool const e = !_parent->selected().empty ();
-
-       _position->Enable (e);
-       _full_length->Enable (e);
-       _trim_start->Enable (e);
-       _trim_end->Enable (e);
-       _play_length->Enable (e);
-       _video_frame_rate->Enable (e);
+       setup_sensitivity ();
 
        film_content_changed (ContentProperty::POSITION);
        film_content_changed (ContentProperty::LENGTH);
        film_content_changed (ContentProperty::TRIM_START);
        film_content_changed (ContentProperty::TRIM_END);
-       film_content_changed (VideoContentProperty::VIDEO_FRAME_RATE);
-       film_content_changed (SubtitleContentProperty::SUBTITLE_VIDEO_FRAME_RATE);
+       film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 }
 
 void
@@ -399,12 +423,23 @@ void
 TimingPanel::trim_start_to_playhead_clicked ()
 {
        DCPTime const ph = _viewer->position ();
+       optional<DCPTime> new_ph;
+
+       _viewer->set_coalesce_player_changes (true);
+
        BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
                if (i->position() < ph && ph < i->end ()) {
                        FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
                        i->set_trim_start (i->trim_start() + ContentTime (ph - i->position (), frc));
+                       new_ph = i->position ();
                }
        }
+
+       if (new_ph) {
+               _viewer->set_position (new_ph.get());
+       }
+
+       _viewer->set_coalesce_player_changes (false);
 }
 
 void
@@ -414,8 +449,31 @@ TimingPanel::trim_end_to_playhead_clicked ()
        BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
                if (i->position() < ph && ph < i->end ()) {
                        FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
-                       i->set_trim_end (ContentTime (i->position() + i->full_length() - ph, frc) - i->trim_start());
+                       i->set_trim_end (ContentTime (i->position() + i->full_length() - ph - DCPTime::from_frames (1, frc.dcp), frc) - i->trim_start());
                }
+       }
+}
+
+void
+TimingPanel::setup_sensitivity ()
+{
+       bool const e = !_parent->selected().empty ();
 
+       _position->Enable (e);
+       _full_length->Enable (e);
+       _trim_start->Enable (e);
+       _trim_end->Enable (e);
+       _play_length->Enable (e);
+       _video_frame_rate->Enable (e);
+
+       DCPTime const ph = _viewer->position ();
+       bool any_over_ph = false;
+       BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+               if (i->position() <= ph && ph < i->end()) {
+                       any_over_ph = true;
+               }
        }
+
+       _trim_start_to_playhead->Enable (any_over_ph);
+       _trim_end_to_playhead->Enable (any_over_ph);
 }