No-op; fix GPL address and use the explicit-program-name version.
[dcpomatic.git] / src / wx / timing_panel.cc
index 8ce64777bc9441fcad37830b67bba8087281c34b..63606f46c734ab1d939497e03e7e185d4bf0ef1c 100644 (file)
@@ -1,41 +1,50 @@
 /*
-    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/>.
 
 */
 
-#include "lib/content.h"
-#include "lib/image_content.h"
-#include "lib/raw_convert.h"
 #include "timing_panel.h"
 #include "wx_util.h"
 #include "film_viewer.h"
 #include "timecode.h"
 #include "content_panel.h"
+#include "lib/content.h"
+#include "lib/image_content.h"
+#include "lib/raw_convert.h"
+#include "lib/subtitle_content.h"
+#include "lib/dcp_subtitle_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>
 
 using std::cout;
 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)
 {
@@ -142,20 +151,22 @@ 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
 TimingPanel::update_full_length ()
 {
-       ContentList cl = _parent->selected ();
-
        set<DCPTime> check;
-       for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-               check.insert ((*i)->full_length ());
+       BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+               check.insert (i->full_length ());
        }
 
        if (check.size() == 1) {
-               _full_length->set (cl.front()->full_length (), _parent->film()->video_frame_rate ());
+               _full_length->set (_parent->selected().front()->full_length (), _parent->film()->video_frame_rate ());
        } else {
                _full_length->clear ();
        }
@@ -164,15 +175,13 @@ TimingPanel::update_full_length ()
 void
 TimingPanel::update_play_length ()
 {
-       ContentList cl = _parent->selected ();
-
        set<DCPTime> check;
-       for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-               check.insert ((*i)->length_after_trim ());
+       BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+               check.insert (i->length_after_trim ());
        }
 
        if (check.size() == 1) {
-               _play_length->set (cl.front()->length_after_trim (), _parent->film()->video_frame_rate ());
+               _play_length->set (_parent->selected().front()->length_after_trim (), _parent->film()->video_frame_rate ());
        } else {
                _play_length->clear ();
        }
@@ -181,7 +190,6 @@ TimingPanel::update_play_length ()
 void
 TimingPanel::film_content_changed (int property)
 {
-       ContentList cl = _parent->selected ();
        int const film_video_frame_rate = _parent->film()->video_frame_rate ();
 
        /* Here we check to see if we have exactly one different value of various
@@ -191,20 +199,20 @@ TimingPanel::film_content_changed (int property)
        if (property == ContentProperty::POSITION) {
 
                set<DCPTime> check;
-               for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-                       check.insert ((*i)->position ());
+               BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+                       check.insert (i->position ());
                }
 
                if (check.size() == 1) {
-                       _position->set (cl.front()->position(), film_video_frame_rate);
+                       _position->set (_parent->selected().front()->position(), film_video_frame_rate);
                } else {
                        _position->clear ();
                }
 
        } else if (
                property == ContentProperty::LENGTH ||
-               property == VideoContentProperty::VIDEO_FRAME_RATE ||
-               property == VideoContentProperty::VIDEO_FRAME_TYPE
+               property == ContentProperty::VIDEO_FRAME_RATE ||
+               property == VideoContentProperty::FRAME_TYPE
                ) {
 
                update_full_length ();
@@ -212,12 +220,12 @@ TimingPanel::film_content_changed (int property)
        } else if (property == ContentProperty::TRIM_START) {
 
                set<ContentTime> check;
-               for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-                       check.insert ((*i)->trim_start ());
+               BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+                       check.insert (i->trim_start ());
                }
 
                if (check.size() == 1) {
-                       _trim_start->set (cl.front()->trim_start (), film_video_frame_rate);
+                       _trim_start->set (_parent->selected().front()->trim_start (), film_video_frame_rate);
                } else {
                        _trim_start->clear ();
                }
@@ -225,12 +233,12 @@ TimingPanel::film_content_changed (int property)
        } else if (property == ContentProperty::TRIM_END) {
 
                set<ContentTime> check;
-               for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-                       check.insert ((*i)->trim_end ());
+               BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+                       check.insert (i->trim_end ());
                }
 
                if (check.size() == 1) {
-                       _trim_end->set (cl.front()->trim_end (), film_video_frame_rate);
+                       _trim_end->set (_parent->selected().front()->trim_end (), film_video_frame_rate);
                } else {
                        _trim_end->clear ();
                }
@@ -240,25 +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 == ContentProperty::VIDEO_FRAME_RATE ||
+               property == VideoContentProperty::FRAME_TYPE
                ) {
 
                update_play_length ();
        }
 
-       if (property == VideoContentProperty::VIDEO_FRAME_RATE) {
-               set<float> check;
-               shared_ptr<VideoContent> vc;
-               for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-                       shared_ptr<VideoContent> t = dynamic_pointer_cast<VideoContent> (*i);
-                       if (t) {
-                               check.insert (t->video_frame_rate ());
-                               vc = t;
+       if (property == ContentProperty::VIDEO_FRAME_RATE) {
+               set<double> check_vc;
+               shared_ptr<const Content> content;
+               int count_ac = 0;
+               int count_sc = 0;
+               BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+                       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;
                        }
+                       if (i->subtitle && i->video_frame_rate()) {
+                               ++count_sc;
+                               content = i;
+                       }
+
                }
-               if (check.size() == 1) {
-                       checked_set (_video_frame_rate, raw_convert<string> (vc->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 (""));
@@ -267,8 +288,8 @@ TimingPanel::film_content_changed (int property)
        }
 
        bool have_still = false;
-       for (ContentList::const_iterator i = cl.begin (); i != cl.end(); ++i) {
-               shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (*i);
+       BOOST_FOREACH (shared_ptr<const Content> i, _parent->selected ()) {
+               shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
                if (ic && ic->still ()) {
                        have_still = true;
                }
@@ -277,26 +298,25 @@ 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
 TimingPanel::position_changed ()
 {
-       ContentList c = _parent->selected ();
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               (*i)->set_position (_position->get (_parent->film()->video_frame_rate ()));
+       BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
+               i->set_position (_position->get (_parent->film()->video_frame_rate ()));
        }
 }
 
 void
 TimingPanel::full_length_changed ()
 {
-       ContentList c = _parent->selected ();
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               shared_ptr<ImageContent> ic = dynamic_pointer_cast<ImageContent> (*i);
+       BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
+               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 (vfr));
+                       ic->video->set_length (_full_length->get (vfr).frames_round (vfr));
                }
        }
 }
@@ -304,31 +324,59 @@ TimingPanel::full_length_changed ()
 void
 TimingPanel::trim_start_changed ()
 {
-       ContentList c = _parent->selected ();
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               (*i)->set_trim_start (_trim_start->get (_parent->film()->video_frame_rate ()));
+       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 ()
 {
-       ContentList c = _parent->selected ();
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               (*i)->set_trim_end (_trim_end->get (_parent->film()->video_frame_rate ()));
+       _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
 TimingPanel::play_length_changed ()
 {
-       ContentList c = _parent->selected ();
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               FrameRateChange const frc = _parent->film()->active_frame_rate_change ((*i)->position ());
-               (*i)->set_trim_end (
-                       ContentTime ((*i)->full_length() - _play_length->get (_parent->film()->video_frame_rate()), frc)
-                       - (*i)->trim_start ()
+       BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
+               FrameRateChange const frc = _parent->film()->active_frame_rate_change (i->position ());
+               i->set_trim_end (
+                       ContentTime (i->full_length() - _play_length->get (_parent->film()->video_frame_rate()), frc)
+                       - i->trim_start ()
                        );
        }
 }
@@ -342,33 +390,24 @@ TimingPanel::video_frame_rate_changed ()
 void
 TimingPanel::set_video_frame_rate ()
 {
-       ContentList c = _parent->selected ();
-       for (ContentList::iterator i = c.begin(); i != c.end(); ++i) {
-               shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*i);
-               if (vc) {
-                       vc->set_video_frame_rate (raw_convert<float> (wx_to_std (_video_frame_rate->GetValue ())));
-               }
-               _set_video_frame_rate->Enable (false);
+       double const fr = raw_convert<double> (wx_to_std (_video_frame_rate->GetValue ()));
+       BOOST_FOREACH (shared_ptr<Content> i, _parent->selected ()) {
+               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 (ContentProperty::VIDEO_FRAME_RATE);
 }
 
 void
@@ -384,12 +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
@@ -399,8 +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);
 }