2 Copyright (C) 2013-2016 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_labels_view.h"
25 #include "timeline_video_content_view.h"
26 #include "timeline_audio_content_view.h"
27 #include "timeline_subtitle_content_view.h"
28 #include "content_panel.h"
31 #include "lib/playlist.h"
32 #include "lib/image_content.h"
33 #include "lib/timer.h"
34 #include "lib/audio_content.h"
35 #include "lib/subtitle_content.h"
36 #include "lib/video_content.h"
37 #include <wx/graphics.h>
38 #include <boost/weak_ptr.hpp>
39 #include <boost/foreach.hpp>
46 using boost::shared_ptr;
47 using boost::weak_ptr;
48 using boost::dynamic_pointer_cast;
50 using boost::optional;
52 Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
53 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
56 , _time_axis_view (new TimelineTimeAxisView (*this, 64))
57 , _reels_view (new TimelineReelsView (*this, 32))
58 , _labels_view (new TimelineLabelsView (*this))
61 , _down_view_position (0)
67 SetDoubleBuffered (true);
70 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
71 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
72 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
73 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
74 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
75 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
77 film_changed (Film::CONTENT);
79 SetMinSize (wxSize (640, tracks() * track_height() + 96));
81 _tracks_position = Position<int> (_labels_view->bbox().width, 32);
83 _film_changed_connection = film->Changed.connect (bind (&Timeline::film_changed, this, _1));
84 _film_content_changed_connection = film->ContentChanged.connect (bind (&Timeline::film_content_changed, this, _2, _3));
92 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
97 gc->SetAntialiasMode (wxANTIALIAS_DEFAULT);
99 BOOST_FOREACH (shared_ptr<TimelineView> i, _views) {
101 shared_ptr<TimelineContentView> ic = dynamic_pointer_cast<TimelineContentView> (i);
103 /* Find areas of overlap */
104 list<dcpomatic::Rect<int> > overlaps;
105 BOOST_FOREACH (shared_ptr<TimelineView> j, _views) {
106 shared_ptr<TimelineContentView> jc = dynamic_pointer_cast<TimelineContentView> (j);
107 /* No overlap with non-content views, views no different tracks, audio views or non-active views */
108 if (!ic || !jc || i == j || ic->track() != jc->track() || ic->track().get_value_or(2) >= 2 || !ic->active() || !jc->active()) {
112 optional<dcpomatic::Rect<int> > r = j->bbox().intersection (i->bbox());
114 overlaps.push_back (r.get ());
118 i->paint (gc, overlaps);
125 Timeline::film_changed (Film::Property p)
127 if (p == Film::CONTENT || p == Film::REEL_TYPE || p == Film::REEL_LENGTH) {
130 } else if (p == Film::CONTENT_ORDER) {
136 Timeline::recreate_views ()
138 shared_ptr<const Film> film = _film.lock ();
144 _views.push_back (_time_axis_view);
145 _views.push_back (_reels_view);
146 _views.push_back (_labels_view);
148 BOOST_FOREACH (shared_ptr<Content> i, film->content ()) {
150 _views.push_back (shared_ptr<TimelineView> (new TimelineVideoContentView (*this, i)));
153 if (i->audio && !i->audio->mapping().mapped_output_channels().empty ()) {
154 _views.push_back (shared_ptr<TimelineView> (new TimelineAudioContentView (*this, i)));
158 _views.push_back (shared_ptr<TimelineView> (new TimelineSubtitleContentView (*this, i)));
163 setup_pixels_per_second ();
168 Timeline::film_content_changed (int property, bool frequent)
172 if (property == AudioContentProperty::STREAMS) {
174 } else if (!frequent) {
175 setup_pixels_per_second ();
181 Timeline::assign_tracks ()
183 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
184 shared_ptr<TimelineContentView> c = dynamic_pointer_cast<TimelineContentView> (*i);
190 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
191 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
196 if (dynamic_pointer_cast<TimelineVideoContentView> (*i)) {
197 /* Video on tracks 0 and 1 (left and right eye) */
198 cv->set_track (cv->content()->video->frame_type() == VIDEO_FRAME_TYPE_3D_RIGHT ? 1 : 0);
199 _tracks = max (_tracks, 2);
201 } else if (dynamic_pointer_cast<TimelineSubtitleContentView> (*i)) {
202 /* Subtitles on track 2 */
204 _tracks = max (_tracks, 3);
208 /* Audio on tracks 3 and up */
211 shared_ptr<Content> content = cv->content();
212 DCPTimePeriod content_period (content->position(), content->end());
215 TimelineViewList::iterator j = _views.begin();
216 while (j != _views.end()) {
217 shared_ptr<TimelineAudioContentView> test = dynamic_pointer_cast<TimelineAudioContentView> (*j);
223 shared_ptr<Content> test_content = test->content();
225 if (test && test->track() && test->track().get() == t) {
226 if (content_period.overlaps (DCPTimePeriod(test_content->position(), test_content->end()))) {
227 /* we have an overlap on track `t' */
236 if (j == _views.end ()) {
237 /* no overlap on `t' */
243 _tracks = max (_tracks, t + 1);
246 _time_axis_view->set_y (tracks() * track_height() + 64);
247 _reels_view->set_y (8);
251 Timeline::tracks () const
257 Timeline::setup_pixels_per_second ()
259 shared_ptr<const Film> film = _film.lock ();
260 if (!film || film->length() == DCPTime ()) {
264 _pixels_per_second = static_cast<double>(width() - tracks_position().x * 2) / film->length().seconds ();
267 shared_ptr<TimelineView>
268 Timeline::event_to_view (wxMouseEvent& ev)
270 /* Search backwards through views so that we find the uppermost one first */
271 TimelineViewList::reverse_iterator i = _views.rbegin();
272 Position<int> const p (ev.GetX(), ev.GetY());
273 while (i != _views.rend() && !(*i)->bbox().contains (p)) {
274 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
278 if (i == _views.rend ()) {
279 return shared_ptr<TimelineView> ();
286 Timeline::left_down (wxMouseEvent& ev)
288 shared_ptr<TimelineView> view = event_to_view (ev);
289 shared_ptr<TimelineContentView> content_view = dynamic_pointer_cast<TimelineContentView> (view);
294 _down_view = content_view;
295 _down_view_position = content_view->content()->position ();
298 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
299 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
304 if (!ev.ShiftDown ()) {
305 cv->set_selected (view == *i);
309 if (content_view && ev.ShiftDown ()) {
310 content_view->set_selected (!content_view->selected ());
314 _down_point = ev.GetPosition ();
318 /* Pre-compute the points that we might snap to */
319 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
320 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
321 if (!cv || cv == _down_view || cv->content() == _down_view->content()) {
325 _start_snaps.push_back (cv->content()->position());
326 _end_snaps.push_back (cv->content()->position());
327 _start_snaps.push_back (cv->content()->end());
328 _end_snaps.push_back (cv->content()->end());
330 BOOST_FOREACH (DCPTime i, cv->content()->reel_split_points()) {
331 _start_snaps.push_back (i);
335 /* Tell everyone that things might change frequently during the drag */
336 _down_view->content()->set_change_signals_frequent (true);
341 Timeline::left_up (wxMouseEvent& ev)
346 _down_view->content()->set_change_signals_frequent (false);
347 _content_panel->set_selection (_down_view->content ());
350 set_position_from_event (ev);
352 /* Clear up up the stuff we don't do during drag */
354 setup_pixels_per_second ();
357 _start_snaps.clear ();
362 Timeline::mouse_moved (wxMouseEvent& ev)
368 set_position_from_event (ev);
372 Timeline::right_down (wxMouseEvent& ev)
374 shared_ptr<TimelineView> view = event_to_view (ev);
375 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (view);
380 if (!cv->selected ()) {
382 cv->set_selected (true);
385 _menu.popup (_film, selected_content (), selected_views (), ev.GetPosition ());
389 Timeline::maybe_snap (DCPTime a, DCPTime b, optional<DCPTime>& nearest_distance) const
391 DCPTime const d = a - b;
392 if (!nearest_distance || d.abs() < nearest_distance.get().abs()) {
393 nearest_distance = d;
398 Timeline::set_position_from_event (wxMouseEvent& ev)
400 if (!_pixels_per_second) {
404 double const pps = _pixels_per_second.get ();
406 wxPoint const p = ev.GetPosition();
409 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
410 before the drag is considered to have started.
412 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
423 DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / pps);
427 DCPTime const new_end = new_position + _down_view->content()->length_after_trim();
428 /* Signed `distance' to nearest thing (i.e. negative is left on the timeline,
431 optional<DCPTime> nearest_distance;
433 /* Find the nearest snap point */
435 BOOST_FOREACH (DCPTime i, _start_snaps) {
436 maybe_snap (i, new_position, nearest_distance);
439 BOOST_FOREACH (DCPTime i, _end_snaps) {
440 maybe_snap (i, new_end, nearest_distance);
443 if (nearest_distance) {
444 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
445 if (nearest_distance.get().abs() < DCPTime::from_seconds ((width() / pps) / 64)) {
446 new_position += nearest_distance.get ();
451 if (new_position < DCPTime ()) {
452 new_position = DCPTime ();
455 _down_view->content()->set_position (new_position);
457 shared_ptr<Film> film = _film.lock ();
458 DCPOMATIC_ASSERT (film);
459 film->set_sequence (false);
463 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
465 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
468 shared_ptr<const Film>
469 Timeline::film () const
471 return _film.lock ();
477 setup_pixels_per_second ();
481 Timeline::clear_selection ()
483 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
484 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
486 cv->set_selected (false);
491 TimelineContentViewList
492 Timeline::selected_views () const
494 TimelineContentViewList sel;
496 for (TimelineViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
497 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
498 if (cv && cv->selected()) {
507 Timeline::selected_content () const
510 TimelineContentViewList views = selected_views ();
512 for (TimelineContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
513 sel.push_back ((*i)->content ());
520 Timeline::set_selection (ContentList selection)
522 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
523 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
525 cv->set_selected (find (selection.begin(), selection.end(), cv->content ()) != selection.end ());