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_video_content_view.h"
24 #include "timeline_audio_content_view.h"
25 #include "timeline_subtitle_content_view.h"
26 #include "content_panel.h"
29 #include "lib/playlist.h"
30 #include "lib/image_content.h"
31 #include "lib/audio_content.h"
32 #include "lib/subtitle_content.h"
33 #include <wx/graphics.h>
34 #include <boost/weak_ptr.hpp>
35 #include <boost/foreach.hpp>
42 using boost::shared_ptr;
43 using boost::weak_ptr;
44 using boost::dynamic_pointer_cast;
46 using boost::optional;
48 Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
49 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
52 , _time_axis_view (new TimelineTimeAxisView (*this, 32))
55 , _down_view_position (0)
61 SetDoubleBuffered (true);
64 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
65 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
66 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
67 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
68 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
69 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
71 film_changed (Film::CONTENT);
73 SetMinSize (wxSize (640, tracks() * track_height() + 96));
75 _film_changed_connection = film->Changed.connect (bind (&Timeline::film_changed, this, _1));
76 _film_content_changed_connection = film->ContentChanged.connect (bind (&Timeline::film_content_changed, this, _2));
84 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
89 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
97 Timeline::film_changed (Film::Property p)
99 if (p == Film::CONTENT) {
106 Timeline::recreate_views ()
108 shared_ptr<const Film> film = _film.lock ();
114 _views.push_back (_time_axis_view);
116 BOOST_FOREACH (shared_ptr<Content> i, film->content ()) {
117 if (dynamic_pointer_cast<VideoContent> (i)) {
118 _views.push_back (shared_ptr<TimelineView> (new TimelineVideoContentView (*this, i)));
121 shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (i);
122 if (ac && !ac->audio_mapping().mapped_output_channels().empty ()) {
123 _views.push_back (shared_ptr<TimelineView> (new TimelineAudioContentView (*this, i)));
126 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (i);
127 if (sc && sc->has_subtitles ()) {
128 _views.push_back (shared_ptr<TimelineView> (new TimelineSubtitleContentView (*this, sc)));
133 setup_pixels_per_second ();
138 Timeline::film_content_changed (int property)
142 if (property == ContentProperty::POSITION) {
145 /* Only do this if we are not dragging, as it's confusing otherwise */
146 setup_pixels_per_second ();
149 } else if (property == AudioContentProperty::AUDIO_STREAMS) {
155 Timeline::assign_tracks ()
157 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
158 shared_ptr<TimelineContentView> c = dynamic_pointer_cast<TimelineContentView> (*i);
164 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
165 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
170 shared_ptr<Content> content = cv->content();
174 TimelineViewList::iterator j = _views.begin();
175 while (j != _views.end()) {
176 shared_ptr<TimelineContentView> test = dynamic_pointer_cast<TimelineContentView> (*j);
182 shared_ptr<Content> test_content = test->content();
184 if (test && test->track() && test->track().get() == t) {
185 bool const no_overlap =
186 (content->position() < test_content->position() && content->end() < test_content->position()) ||
187 (content->position() > test_content->end() && content->end() > test_content->end());
190 /* we have an overlap on track `t' */
199 if (j == _views.end ()) {
200 /* no overlap on `t' */
206 _tracks = max (_tracks, t + 1);
209 _time_axis_view->set_y (tracks() * track_height() + 32);
213 Timeline::tracks () const
219 Timeline::setup_pixels_per_second ()
221 shared_ptr<const Film> film = _film.lock ();
222 if (!film || film->length() == DCPTime ()) {
226 _pixels_per_second = static_cast<double>(width() - x_offset() * 2) / film->length().seconds ();
229 shared_ptr<TimelineView>
230 Timeline::event_to_view (wxMouseEvent& ev)
232 TimelineViewList::iterator i = _views.begin();
233 Position<int> const p (ev.GetX(), ev.GetY());
234 while (i != _views.end() && !(*i)->bbox().contains (p)) {
238 if (i == _views.end ()) {
239 return shared_ptr<TimelineView> ();
246 Timeline::left_down (wxMouseEvent& ev)
248 shared_ptr<TimelineView> view = event_to_view (ev);
249 shared_ptr<TimelineContentView> content_view = dynamic_pointer_cast<TimelineContentView> (view);
254 _down_view = content_view;
255 _down_view_position = content_view->content()->position ();
258 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
259 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
264 if (!ev.ShiftDown ()) {
265 cv->set_selected (view == *i);
269 _content_panel->set_selection (cv->content ());
273 if (content_view && ev.ShiftDown ()) {
274 content_view->set_selected (!content_view->selected ());
278 _down_point = ev.GetPosition ();
282 _down_view->content()->set_change_signals_frequent (true);
287 Timeline::left_up (wxMouseEvent& ev)
292 _down_view->content()->set_change_signals_frequent (false);
295 set_position_from_event (ev);
297 /* We don't do this during drag, and set_position_from_event above
298 might not have changed the position, so do it now.
300 setup_pixels_per_second ();
305 Timeline::mouse_moved (wxMouseEvent& ev)
311 set_position_from_event (ev);
315 Timeline::right_down (wxMouseEvent& ev)
317 shared_ptr<TimelineView> view = event_to_view (ev);
318 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (view);
323 if (!cv->selected ()) {
325 cv->set_selected (true);
328 _menu.popup (_film, selected_content (), selected_views (), ev.GetPosition ());
332 Timeline::maybe_snap (DCPTime a, DCPTime b, optional<DCPTime>& nearest_distance) const
334 DCPTime const d = a - b;
335 if (!nearest_distance || d.abs() < nearest_distance.get().abs()) {
336 nearest_distance = d;
341 Timeline::set_position_from_event (wxMouseEvent& ev)
343 if (!_pixels_per_second) {
347 double const pps = _pixels_per_second.get ();
349 wxPoint const p = ev.GetPosition();
352 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
353 before the drag is considered to have started.
355 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
366 DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / pps);
370 DCPTime const new_end = new_position + _down_view->content()->length_after_trim () - DCPTime (1);
371 /* Signed `distance' to nearest thing (i.e. negative is left on the timeline,
374 optional<DCPTime> nearest_distance;
376 /* Find the nearest content edge; this is inefficient */
377 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
378 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
379 if (!cv || cv == _down_view || cv->content() == _down_view->content()) {
383 maybe_snap (cv->content()->position(), new_position, nearest_distance);
384 maybe_snap (cv->content()->position(), new_end + DCPTime (1), nearest_distance);
385 maybe_snap (cv->content()->end() + DCPTime (1), new_position, nearest_distance);
386 maybe_snap (cv->content()->end() + DCPTime (1), new_end, nearest_distance);
389 if (nearest_distance) {
390 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
391 if (nearest_distance.get().abs() < DCPTime::from_seconds ((width() / pps) / 64)) {
392 new_position += nearest_distance.get ();
397 if (new_position < DCPTime ()) {
398 new_position = DCPTime ();
401 _down_view->content()->set_position (new_position);
403 shared_ptr<Film> film = _film.lock ();
404 DCPOMATIC_ASSERT (film);
405 film->set_sequence_video (false);
409 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
411 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
414 shared_ptr<const Film>
415 Timeline::film () const
417 return _film.lock ();
423 setup_pixels_per_second ();
427 Timeline::clear_selection ()
429 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
430 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
432 cv->set_selected (false);
437 TimelineContentViewList
438 Timeline::selected_views () const
440 TimelineContentViewList sel;
442 for (TimelineViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
443 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
444 if (cv && cv->selected()) {
453 Timeline::selected_content () const
456 TimelineContentViewList views = selected_views ();
458 for (TimelineContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
459 sel.push_back ((*i)->content ());