Make sure at least one position change event is emitted after
[dcpomatic.git] / src / wx / timeline.cc
index 6fac627276e9468a848fc3abeeb8389dad3a92d3..de5f05ae78ae09703e4541876bab31fb4d8e46fe 100644 (file)
@@ -25,7 +25,7 @@
 #include "timeline_labels_view.h"
 #include "timeline_video_content_view.h"
 #include "timeline_audio_content_view.h"
-#include "timeline_subtitle_content_view.h"
+#include "timeline_text_content_view.h"
 #include "timeline_atmos_content_view.h"
 #include "content_panel.h"
 #include "wx_util.h"
 #include "lib/image_content.h"
 #include "lib/timer.h"
 #include "lib/audio_content.h"
-#include "lib/subtitle_content.h"
+#include "lib/text_content.h"
 #include "lib/video_content.h"
 #include "lib/atmos_mxf_content.h"
 #include <wx/graphics.h>
 #include <boost/weak_ptr.hpp>
 #include <boost/foreach.hpp>
 #include <list>
+#include <iterator>
 #include <iostream>
 
 using std::list;
 using std::cout;
 using std::min;
 using std::max;
+using std::abs;
 using boost::shared_ptr;
 using boost::weak_ptr;
 using boost::dynamic_pointer_cast;
@@ -55,7 +57,7 @@ using boost::optional;
 
 /* 3 hours in 640 pixels */
 double const Timeline::_minimum_pixels_per_second = 640.0 / (60 * 60 * 3);
-int const Timeline::_minimum_track_height = 16;
+int const Timeline::_minimum_pixels_per_track = 16;
 
 Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
        : wxPanel (parent, wxID_ANY)
@@ -75,7 +77,8 @@ Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
        , _tool (SELECT)
        , _x_scroll_rate (16)
        , _y_scroll_rate (16)
-       , _track_height (48)
+       , _pixels_per_track (48)
+       , _first_resize (true)
 {
 #ifndef __WXOSX__
        _labels_canvas->SetDoubleBuffered (true);
@@ -95,21 +98,31 @@ Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
        _main_canvas->Bind   (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down,   this, _1));
        _main_canvas->Bind   (wxEVT_MOTION,     boost::bind (&Timeline::mouse_moved,  this, _1));
        _main_canvas->Bind   (wxEVT_SIZE,       boost::bind (&Timeline::resized,      this));
-       _main_canvas->Bind   (wxEVT_SCROLLWIN_THUMBTRACK,  boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_TOP,        boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_BOTTOM,     boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_LINEUP,     boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_LINEDOWN,   boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_PAGEUP,     boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_PAGEDOWN,   boost::bind (&Timeline::scrolled,     this, _1));
+       _main_canvas->Bind   (wxEVT_SCROLLWIN_THUMBTRACK, boost::bind (&Timeline::scrolled,     this, _1));
 
-       film_changed (Film::CONTENT);
+       film_change (CHANGE_TYPE_DONE, Film::CONTENT);
 
-       SetMinSize (wxSize (640, 4 * track_height() + 96));
+       SetMinSize (wxSize (640, 4 * pixels_per_track() + 96));
 
-       _film_changed_connection = film->Changed.connect (bind (&Timeline::film_changed, this, _1));
-       _film_content_changed_connection = film->ContentChanged.connect (bind (&Timeline::film_content_changed, this, _2, _3));
-
-       _pixels_per_second = max (_minimum_pixels_per_second, static_cast<double>(640) / film->length().seconds ());
+       _film_changed_connection = film->Change.connect (bind (&Timeline::film_change, this, _1, _2));
+       _film_content_change_connection = film->ContentChange.connect (bind (&Timeline::film_content_change, this, _1, _3, _4));
 
        setup_scrollbars ();
        _labels_canvas->ShowScrollbars (wxSHOW_SB_NEVER, wxSHOW_SB_NEVER);
 }
 
+void
+Timeline::set_pixels_per_second (double pps)
+{
+       _pixels_per_second = max (_minimum_pixels_per_second, pps);
+}
+
 void
 Timeline::paint_labels ()
 {
@@ -176,8 +189,8 @@ Timeline::paint_main ()
                gc->DrawRectangle (
                        min (_down_point.x, _zoom_point->x),
                        min (_down_point.y, _zoom_point->y),
-                       fabs (_down_point.x - _zoom_point->x),
-                       fabs (_down_point.y - _zoom_point->y)
+                       abs (_down_point.x - _zoom_point->x),
+                       abs (_down_point.y - _zoom_point->y)
                        );
        }
 
@@ -185,8 +198,12 @@ Timeline::paint_main ()
 }
 
 void
-Timeline::film_changed (Film::Property p)
+Timeline::film_change (ChangeType type, Film::Property p)
 {
+       if (type != CHANGE_TYPE_DONE) {
+               return;
+       }
+
        if (p == Film::CONTENT || p == Film::REEL_TYPE || p == Film::REEL_LENGTH) {
                ensure_ui_thread ();
                recreate_views ();
@@ -216,8 +233,8 @@ Timeline::recreate_views ()
                        _views.push_back (shared_ptr<TimelineView> (new TimelineAudioContentView (*this, i)));
                }
 
-               if (i->subtitle) {
-                       _views.push_back (shared_ptr<TimelineView> (new TimelineSubtitleContentView (*this, i)));
+               BOOST_FOREACH (shared_ptr<TextContent> j, i->text) {
+                       _views.push_back (shared_ptr<TimelineView> (new TimelineTextContentView (*this, i, j)));
                }
 
                if (dynamic_pointer_cast<AtmosMXFContent> (i)) {
@@ -231,12 +248,18 @@ Timeline::recreate_views ()
 }
 
 void
-Timeline::film_content_changed (int property, bool frequent)
+Timeline::film_content_change (ChangeType type, int property, bool frequent)
 {
+       if (type != CHANGE_TYPE_DONE) {
+               return;
+       }
+
        ensure_ui_thread ();
 
-       if (property == AudioContentProperty::STREAMS) {
+       if (property == AudioContentProperty::STREAMS || property == VideoContentProperty::FRAME_TYPE) {
                recreate_views ();
+       } else if (property == ContentProperty::POSITION || property == ContentProperty::LENGTH) {
+               _reels_view->force_redraw ();
        } else if (!frequent) {
                setup_scrollbars ();
                Refresh ();
@@ -245,7 +268,7 @@ Timeline::film_content_changed (int property, bool frequent)
 
 template <class T>
 int
-place (TimelineViewList& views, int& tracks)
+place (shared_ptr<const Film> film, TimelineViewList& views, int& tracks)
 {
        int const base = tracks;
 
@@ -259,7 +282,7 @@ place (TimelineViewList& views, int& tracks)
                int t = base;
 
                shared_ptr<Content> content = cv->content();
-               DCPTimePeriod const content_period (content->position(), content->end());
+               DCPTimePeriod const content_period (content->position(), content->end(film));
 
                while (true) {
                        TimelineViewList::iterator j = views.begin();
@@ -273,7 +296,7 @@ place (TimelineViewList& views, int& tracks)
                                shared_ptr<Content> test_content = test->content();
                                if (
                                        test->track() && test->track().get() == t &&
-                                       content_period.overlap(DCPTimePeriod(test_content->position(), test_content->end()))) {
+                                       content_period.overlap(DCPTimePeriod(test_content->position(), test_content->end(film)))) {
                                        /* we have an overlap on track `t' */
                                        ++t;
                                        break;
@@ -295,21 +318,45 @@ place (TimelineViewList& views, int& tracks)
        return tracks - base;
 }
 
+/** Compare the mapped output channels of two TimelineViews, so we can into
+ *  order of first mapped DCP channel.
+ */
+struct AudioMappingComparator {
+       bool operator()(shared_ptr<TimelineView> a, shared_ptr<TimelineView> b) {
+               int la = -1;
+               shared_ptr<TimelineAudioContentView> cva = dynamic_pointer_cast<TimelineAudioContentView>(a);
+               if (cva) {
+                       list<int> oc = cva->content()->audio->mapping().mapped_output_channels();
+                       la = *min_element(boost::begin(oc), boost::end(oc));
+               }
+               int lb = -1;
+               shared_ptr<TimelineAudioContentView> cvb = dynamic_pointer_cast<TimelineAudioContentView>(b);
+               if (cvb) {
+                       list<int> oc = cvb->content()->audio->mapping().mapped_output_channels();
+                       lb = *min_element(boost::begin(oc), boost::end(oc));
+               }
+               return la < lb;
+       }
+};
+
 void
 Timeline::assign_tracks ()
 {
        /* Tracks are:
           Video (mono or left-eye)
           Video (right-eye)
-          Subtitle 1
-          Subtitle 2
-          Subtitle N
+          Text 1
+          Text 2
+          Text N
           Atmos
           Audio 1
           Audio 2
           Audio N
        */
 
+       shared_ptr<const Film> film = _film.lock ();
+       DCPOMATIC_ASSERT (film);
+
        _tracks = 0;
 
        for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
@@ -340,9 +387,9 @@ Timeline::assign_tracks ()
 
        _tracks = max (_tracks, 1);
 
-       /* Subtitle */
+       /* Texts */
 
-       int const subtitle_tracks = place<TimelineSubtitleContentView> (_views, _tracks);
+       int const text_tracks = place<TimelineTextContentView> (film, _views, _tracks);
 
        /* Atmos */
 
@@ -362,12 +409,17 @@ Timeline::assign_tracks ()
                ++_tracks;
        }
 
-       /* Audio */
+       /* Audio.  We're sorting the views so that we get the audio views in order of increasing
+          DCP channel index.
+       */
 
-       place<TimelineAudioContentView> (_views, _tracks);
+       TimelineViewList views = _views;
+       sort(views.begin(), views.end(), AudioMappingComparator());
+       int const audio_tracks = place<TimelineAudioContentView> (film, views, _tracks);
 
        _labels_view->set_3d (have_3d);
-       _labels_view->set_subtitle_tracks (subtitle_tracks);
+       _labels_view->set_audio_tracks (audio_tracks);
+       _labels_view->set_text_tracks (text_tracks);
        _labels_view->set_atmos (have_atmos);
 
        _time_axis_view->set_y (tracks());
@@ -387,9 +439,12 @@ Timeline::setup_scrollbars ()
        if (!film || !_pixels_per_second) {
                return;
        }
-       _labels_canvas->SetVirtualSize (_labels_view->bbox().width, tracks() * track_height() + 96);
+
+       int const h = tracks() * pixels_per_track() + tracks_y_offset() + _time_axis_view->bbox().height;
+
+       _labels_canvas->SetVirtualSize (_labels_view->bbox().width, h);
        _labels_canvas->SetScrollRate (_x_scroll_rate, _y_scroll_rate);
-       _main_canvas->SetVirtualSize (*_pixels_per_second * film->length().seconds(), tracks() * track_height() + 96);
+       _main_canvas->SetVirtualSize (*_pixels_per_second * film->length().seconds(), h);
        _main_canvas->SetScrollRate (_x_scroll_rate, _y_scroll_rate);
 }
 
@@ -422,6 +477,9 @@ Timeline::left_down (wxMouseEvent& ev)
                left_down_select (ev);
                break;
        case ZOOM:
+       case ZOOM_ALL:
+       case SNAP:
+       case SEQUENCE:
                /* Nothing to do */
                break;
        }
@@ -465,12 +523,15 @@ Timeline::left_down_select (wxMouseEvent& ev)
                                continue;
                        }
 
+                       shared_ptr<Film> film = _film.lock ();
+                       DCPOMATIC_ASSERT (film);
+
                        _start_snaps.push_back (cv->content()->position());
                        _end_snaps.push_back (cv->content()->position());
-                       _start_snaps.push_back (cv->content()->end());
-                       _end_snaps.push_back (cv->content()->end());
+                       _start_snaps.push_back (cv->content()->end(film));
+                       _end_snaps.push_back (cv->content()->end(film));
 
-                       BOOST_FOREACH (DCPTime i, cv->content()->reel_split_points()) {
+                       BOOST_FOREACH (DCPTime i, cv->content()->reel_split_points(film)) {
                                _start_snaps.push_back (i);
                        }
                }
@@ -492,6 +553,10 @@ Timeline::left_up (wxMouseEvent& ev)
        case ZOOM:
                left_up_zoom (ev);
                break;
+       case ZOOM_ALL:
+       case SNAP:
+       case SEQUENCE:
+               break;
        }
 }
 
@@ -503,7 +568,12 @@ Timeline::left_up_select (wxMouseEvent& ev)
        }
 
        _content_panel->set_selection (selected_content ());
-       set_position_from_event (ev);
+       /* Since we may have just set change signals back to `not-frequent', we have to
+          make sure this position change is signalled, even if the position value has
+          not changed since the last time it was set (with frequent=true).  This is
+          a bit of a hack.
+       */
+       set_position_from_event (ev, true);
 
        /* Clear up up the stuff we don't do during drag */
        assign_tracks ();
@@ -532,20 +602,27 @@ Timeline::left_up_zoom (wxMouseEvent& ev)
 
        DCPTime const time_left = DCPTime::from_seconds((top_left.x + vsx) / *_pixels_per_second);
        DCPTime const time_right = DCPTime::from_seconds((bottom_right.x + vsx) / *_pixels_per_second);
-       _pixels_per_second = max (_minimum_pixels_per_second, double(GetSize().GetWidth()) / (time_right.seconds() - time_left.seconds()));
+       set_pixels_per_second (double(GetSize().GetWidth()) / (time_right.seconds() - time_left.seconds()));
 
-       double const tracks_top = double(top_left.y) / _track_height;
-       double const tracks_bottom = double(bottom_right.y) / _track_height;
-       _track_height = max(_minimum_track_height, int(lrint(GetSize().GetHeight() / (tracks_bottom - tracks_top))));
+       double const tracks_top = double(top_left.y - tracks_y_offset()) / _pixels_per_track;
+       double const tracks_bottom = double(bottom_right.y - tracks_y_offset()) / _pixels_per_track;
+       set_pixels_per_track (lrint(GetSize().GetHeight() / (tracks_bottom - tracks_top)));
 
        setup_scrollbars ();
-       _main_canvas->Scroll (time_left.seconds() * *_pixels_per_second / _x_scroll_rate, tracks_top * _track_height / _y_scroll_rate);
-       _labels_canvas->Scroll (0, tracks_top * _track_height / _y_scroll_rate);
+       int const y = (tracks_top * _pixels_per_track + tracks_y_offset()) / _y_scroll_rate;
+       _main_canvas->Scroll (time_left.seconds() * *_pixels_per_second / _x_scroll_rate, y);
+       _labels_canvas->Scroll (0, y);
 
        _zoom_point = optional<wxPoint> ();
        Refresh ();
 }
 
+void
+Timeline::set_pixels_per_track (int h)
+{
+       _pixels_per_track = max(_minimum_pixels_per_track, h);
+}
+
 void
 Timeline::mouse_moved (wxMouseEvent& ev)
 {
@@ -556,6 +633,10 @@ Timeline::mouse_moved (wxMouseEvent& ev)
        case ZOOM:
                mouse_moved_zoom (ev);
                break;
+       case ZOOM_ALL:
+       case SNAP:
+       case SEQUENCE:
+               break;
        }
 }
 
@@ -589,11 +670,15 @@ Timeline::right_down (wxMouseEvent& ev)
                break;
        case ZOOM:
                /* Zoom out */
-               _pixels_per_second = max (_minimum_pixels_per_second, *_pixels_per_second / 2);
-               _track_height = max (_minimum_track_height, _track_height / 2);
+               set_pixels_per_second (*_pixels_per_second / 2);
+               set_pixels_per_track (_pixels_per_track / 2);
                setup_scrollbars ();
                Refresh ();
                break;
+       case ZOOM_ALL:
+       case SNAP:
+       case SEQUENCE:
+               break;
        }
 }
 
@@ -624,7 +709,7 @@ Timeline::maybe_snap (DCPTime a, DCPTime b, optional<DCPTime>& nearest_distance)
 }
 
 void
-Timeline::set_position_from_event (wxMouseEvent& ev)
+Timeline::set_position_from_event (wxMouseEvent& ev, bool force_emit)
 {
        if (!_pixels_per_second) {
                return;
@@ -651,9 +736,11 @@ Timeline::set_position_from_event (wxMouseEvent& ev)
 
        DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / pps);
 
-       if (_snap) {
+       shared_ptr<Film> film = _film.lock ();
+       DCPOMATIC_ASSERT (film);
 
-               DCPTime const new_end = new_position + _down_view->content()->length_after_trim();
+       if (_snap) {
+               DCPTime const new_end = new_position + _down_view->content()->length_after_trim(film);
                /* Signed `distance' to nearest thing (i.e. negative is left on the timeline,
                   positive is right).
                */
@@ -681,17 +768,15 @@ Timeline::set_position_from_event (wxMouseEvent& ev)
                new_position = DCPTime ();
        }
 
-       _down_view->content()->set_position (new_position);
+       _down_view->content()->set_position (film, new_position, force_emit);
 
-       shared_ptr<Film> film = _film.lock ();
-       DCPOMATIC_ASSERT (film);
        film->set_sequence (false);
 }
 
 void
 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
 {
-       RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
+       _main_canvas->RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
 }
 
 shared_ptr<const Film>
@@ -703,6 +788,10 @@ Timeline::film () const
 void
 Timeline::resized ()
 {
+       if (_main_canvas->GetSize().GetWidth() > 0 && _first_resize) {
+               zoom_all ();
+               _first_resize = false;
+       }
        setup_scrollbars ();
 }
 
@@ -772,7 +861,39 @@ void
 Timeline::scrolled (wxScrollWinEvent& ev)
 {
        if (ev.GetOrientation() == wxVERTICAL) {
-               _labels_canvas->Scroll (0, ev.GetPosition ());
+               int x, y;
+               _main_canvas->GetViewStart (&x, &y);
+               _labels_canvas->Scroll (0, y);
        }
        ev.Skip ();
 }
+
+void
+Timeline::tool_clicked (Tool t)
+{
+       switch (t) {
+       case ZOOM:
+       case SELECT:
+               _tool = t;
+               break;
+       case ZOOM_ALL:
+               zoom_all ();
+               break;
+       case SNAP:
+       case SEQUENCE:
+               break;
+       }
+}
+
+void
+Timeline::zoom_all ()
+{
+       shared_ptr<Film> film = _film.lock ();
+       DCPOMATIC_ASSERT (film);
+       set_pixels_per_second ((_main_canvas->GetSize().GetWidth() - 32) / film->length().seconds());
+       set_pixels_per_track ((_main_canvas->GetSize().GetHeight() - tracks_y_offset() - _time_axis_view->bbox().height - 32) / _tracks);
+       setup_scrollbars ();
+       _main_canvas->Scroll (0, 0);
+       _labels_canvas->Scroll (0, 0);
+       Refresh ();
+}