2 Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
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.
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.
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.
20 #include "film_editor.h"
22 #include "timeline_time_axis_view.h"
23 #include "timeline_reels_view.h"
24 #include "timeline_video_content_view.h"
25 #include "timeline_audio_content_view.h"
26 #include "timeline_subtitle_content_view.h"
27 #include "content_panel.h"
30 #include "lib/playlist.h"
31 #include "lib/image_content.h"
32 #include "lib/timer.h"
33 #include "lib/audio_content.h"
34 #include "lib/subtitle_content.h"
35 #include <wx/graphics.h>
36 #include <boost/weak_ptr.hpp>
37 #include <boost/foreach.hpp>
44 using boost::shared_ptr;
45 using boost::weak_ptr;
46 using boost::dynamic_pointer_cast;
48 using boost::optional;
50 Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
51 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
54 , _time_axis_view (new TimelineTimeAxisView (*this, 64))
55 , _reels_view (new TimelineReelsView (*this, 32))
58 , _down_view_position (0)
64 SetDoubleBuffered (true);
67 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
68 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
69 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
70 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
71 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
72 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
74 film_changed (Film::CONTENT);
76 SetMinSize (wxSize (640, tracks() * track_height() + 96));
78 _film_changed_connection = film->Changed.connect (bind (&Timeline::film_changed, this, _1));
79 _film_content_changed_connection = film->ContentChanged.connect (bind (&Timeline::film_content_changed, this, _2));
87 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
92 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
100 Timeline::film_changed (Film::Property p)
102 if (p == Film::CONTENT || p == Film::REEL_TYPE || p == Film::REEL_LENGTH) {
105 } else if (p == Film::CONTENT_ORDER) {
108 /* Only do this if we are not dragging, as it's confusing otherwise */
109 setup_pixels_per_second ();
116 Timeline::recreate_views ()
118 shared_ptr<const Film> film = _film.lock ();
124 _views.push_back (_time_axis_view);
125 _views.push_back (_reels_view);
127 BOOST_FOREACH (shared_ptr<Content> i, film->content ()) {
128 if (dynamic_pointer_cast<VideoContent> (i)) {
129 _views.push_back (shared_ptr<TimelineView> (new TimelineVideoContentView (*this, i)));
132 shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (i);
133 if (ac && !ac->audio_mapping().mapped_output_channels().empty ()) {
134 _views.push_back (shared_ptr<TimelineView> (new TimelineAudioContentView (*this, i)));
137 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (i);
138 if (sc && sc->has_subtitles ()) {
139 _views.push_back (shared_ptr<TimelineView> (new TimelineSubtitleContentView (*this, sc)));
144 setup_pixels_per_second ();
149 Timeline::film_content_changed (int property)
153 if (property == AudioContentProperty::AUDIO_STREAMS) {
159 Timeline::assign_tracks ()
161 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
162 shared_ptr<TimelineContentView> c = dynamic_pointer_cast<TimelineContentView> (*i);
168 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
169 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
174 shared_ptr<Content> content = cv->content();
175 DCPTimePeriod content_period (content->position(), content->end());
179 TimelineViewList::iterator j = _views.begin();
180 while (j != _views.end()) {
181 shared_ptr<TimelineContentView> test = dynamic_pointer_cast<TimelineContentView> (*j);
187 shared_ptr<Content> test_content = test->content();
189 if (test && test->track() && test->track().get() == t) {
190 if (content_period.overlaps (DCPTimePeriod(test_content->position(), test_content->end()))) {
191 /* we have an overlap on track `t' */
200 if (j == _views.end ()) {
201 /* no overlap on `t' */
207 _tracks = max (_tracks, t + 1);
210 _time_axis_view->set_y (tracks() * track_height() + 64);
211 _reels_view->set_y (tracks() * track_height() + 32);
215 Timeline::tracks () const
221 Timeline::setup_pixels_per_second ()
223 shared_ptr<const Film> film = _film.lock ();
224 if (!film || film->length() == DCPTime ()) {
228 _pixels_per_second = static_cast<double>(width() - x_offset() * 2) / film->length().seconds ();
231 shared_ptr<TimelineView>
232 Timeline::event_to_view (wxMouseEvent& ev)
234 TimelineViewList::iterator i = _views.begin();
235 Position<int> const p (ev.GetX(), ev.GetY());
236 while (i != _views.end() && !(*i)->bbox().contains (p)) {
240 if (i == _views.end ()) {
241 return shared_ptr<TimelineView> ();
248 Timeline::left_down (wxMouseEvent& ev)
250 shared_ptr<TimelineView> view = event_to_view (ev);
251 shared_ptr<TimelineContentView> content_view = dynamic_pointer_cast<TimelineContentView> (view);
256 _down_view = content_view;
257 _down_view_position = content_view->content()->position ();
260 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
261 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
266 if (!ev.ShiftDown ()) {
267 cv->set_selected (view == *i);
271 if (content_view && ev.ShiftDown ()) {
272 content_view->set_selected (!content_view->selected ());
276 _down_point = ev.GetPosition ();
280 /* Pre-compute the points that we might snap to */
281 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
282 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
283 if (!cv || cv == _down_view || cv->content() == _down_view->content()) {
287 _start_snaps.push_back (cv->content()->position());
288 _end_snaps.push_back (cv->content()->position());
289 _start_snaps.push_back (cv->content()->end());
290 _end_snaps.push_back (cv->content()->end());
292 BOOST_FOREACH (DCPTime i, cv->content()->reel_split_points()) {
293 _start_snaps.push_back (i);
297 /* Tell everyone that things might change frequently during the drag */
298 _down_view->content()->set_change_signals_frequent (true);
303 Timeline::left_up (wxMouseEvent& ev)
308 _down_view->content()->set_change_signals_frequent (false);
309 _content_panel->set_selection (_down_view->content ());
312 set_position_from_event (ev);
314 /* We don't do this during drag, and set_position_from_event above
315 might not have changed the position, so do it now.
317 setup_pixels_per_second ();
320 _start_snaps.clear ();
325 Timeline::mouse_moved (wxMouseEvent& ev)
331 set_position_from_event (ev);
335 Timeline::right_down (wxMouseEvent& ev)
337 shared_ptr<TimelineView> view = event_to_view (ev);
338 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (view);
343 if (!cv->selected ()) {
345 cv->set_selected (true);
348 _menu.popup (_film, selected_content (), selected_views (), ev.GetPosition ());
352 Timeline::maybe_snap (DCPTime a, DCPTime b, optional<DCPTime>& nearest_distance) const
354 DCPTime const d = a - b;
355 if (!nearest_distance || d.abs() < nearest_distance.get().abs()) {
356 nearest_distance = d;
361 Timeline::set_position_from_event (wxMouseEvent& ev)
363 if (!_pixels_per_second) {
367 double const pps = _pixels_per_second.get ();
369 wxPoint const p = ev.GetPosition();
372 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
373 before the drag is considered to have started.
375 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
386 DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / pps);
390 DCPTime const new_end = new_position + _down_view->content()->length_after_trim();
391 /* Signed `distance' to nearest thing (i.e. negative is left on the timeline,
394 optional<DCPTime> nearest_distance;
396 /* Find the nearest snap point */
398 BOOST_FOREACH (DCPTime i, _start_snaps) {
399 maybe_snap (i, new_position, nearest_distance);
402 BOOST_FOREACH (DCPTime i, _end_snaps) {
403 maybe_snap (i, new_end, nearest_distance);
406 if (nearest_distance) {
407 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
408 if (nearest_distance.get().abs() < DCPTime::from_seconds ((width() / pps) / 64)) {
409 new_position += nearest_distance.get ();
414 if (new_position < DCPTime ()) {
415 new_position = DCPTime ();
418 _down_view->content()->set_position (new_position);
420 shared_ptr<Film> film = _film.lock ();
421 DCPOMATIC_ASSERT (film);
422 film->set_sequence_video (false);
426 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
428 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
431 shared_ptr<const Film>
432 Timeline::film () const
434 return _film.lock ();
440 setup_pixels_per_second ();
444 Timeline::clear_selection ()
446 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
447 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
449 cv->set_selected (false);
454 TimelineContentViewList
455 Timeline::selected_views () const
457 TimelineContentViewList sel;
459 for (TimelineViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
460 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
461 if (cv && cv->selected()) {
470 Timeline::selected_content () const
473 TimelineContentViewList views = selected_views ();
475 for (TimelineContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
476 sel.push_back ((*i)->content ());
483 Timeline::set_selection (ContentList selection)
485 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
486 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
488 cv->set_selected (find (selection.begin(), selection.end(), cv->content ()) != selection.end ());