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.
21 #include <wx/graphics.h>
22 #include <boost/weak_ptr.hpp>
24 #include "lib/playlist.h"
25 #include "lib/image_content.h"
26 #include "film_editor.h"
28 #include "timeline_time_axis_view.h"
29 #include "timeline_video_content_view.h"
30 #include "timeline_audio_content_view.h"
31 #include "timeline_subtitle_content_view.h"
32 #include "content_panel.h"
38 using boost::shared_ptr;
39 using boost::weak_ptr;
40 using boost::dynamic_pointer_cast;
42 using boost::optional;
44 Timeline::Timeline (wxWindow* parent, ContentPanel* cp, shared_ptr<Film> film)
45 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
48 , _time_axis_view (new TimelineTimeAxisView (*this, 32))
51 , _down_view_position (0)
57 SetDoubleBuffered (true);
60 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
61 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
62 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
63 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
64 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
65 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
69 SetMinSize (wxSize (640, tracks() * track_height() + 96));
71 _playlist_changed_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
72 _playlist_content_changed_connection = film->playlist()->ContentChanged.connect (bind (&Timeline::playlist_content_changed, this, _2));
80 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
85 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
93 Timeline::playlist_changed ()
97 shared_ptr<const Film> fl = _film.lock ();
103 _views.push_back (_time_axis_view);
105 ContentList content = fl->playlist()->content ();
107 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
108 if (dynamic_pointer_cast<VideoContent> (*i)) {
109 _views.push_back (shared_ptr<TimelineView> (new TimelineVideoContentView (*this, *i)));
111 if (dynamic_pointer_cast<AudioContent> (*i)) {
112 _views.push_back (shared_ptr<TimelineView> (new TimelineAudioContentView (*this, *i)));
115 shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (*i);
116 if (sc && sc->has_subtitles ()) {
117 _views.push_back (shared_ptr<TimelineView> (new TimelineSubtitleContentView (*this, sc)));
122 setup_pixels_per_second ();
127 Timeline::playlist_content_changed (int property)
131 if (property == ContentProperty::POSITION) {
133 setup_pixels_per_second ();
139 Timeline::assign_tracks ()
141 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
142 shared_ptr<TimelineContentView> c = dynamic_pointer_cast<TimelineContentView> (*i);
148 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
149 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
154 shared_ptr<Content> content = cv->content();
158 TimelineViewList::iterator j = _views.begin();
159 while (j != _views.end()) {
160 shared_ptr<TimelineContentView> test = dynamic_pointer_cast<TimelineContentView> (*j);
166 shared_ptr<Content> test_content = test->content();
168 if (test && test->track() && test->track().get() == t) {
169 bool const no_overlap =
170 (content->position() < test_content->position() && content->end() < test_content->position()) ||
171 (content->position() > test_content->end() && content->end() > test_content->end());
174 /* we have an overlap on track `t' */
183 if (j == _views.end ()) {
184 /* no overlap on `t' */
190 _tracks = max (_tracks, t + 1);
193 _time_axis_view->set_y (tracks() * track_height() + 32);
197 Timeline::tracks () const
203 Timeline::setup_pixels_per_second ()
205 shared_ptr<const Film> film = _film.lock ();
206 if (!film || film->length() == DCPTime ()) {
210 _pixels_per_second = static_cast<double>(width() - x_offset() * 2) / film->length().seconds ();
213 shared_ptr<TimelineView>
214 Timeline::event_to_view (wxMouseEvent& ev)
216 TimelineViewList::iterator i = _views.begin();
217 Position<int> const p (ev.GetX(), ev.GetY());
218 while (i != _views.end() && !(*i)->bbox().contains (p)) {
222 if (i == _views.end ()) {
223 return shared_ptr<TimelineView> ();
230 Timeline::left_down (wxMouseEvent& ev)
232 shared_ptr<TimelineView> view = event_to_view (ev);
233 shared_ptr<TimelineContentView> content_view = dynamic_pointer_cast<TimelineContentView> (view);
238 _down_view = content_view;
239 _down_view_position = content_view->content()->position ();
242 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
243 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
248 if (!ev.ShiftDown ()) {
249 cv->set_selected (view == *i);
253 _content_panel->set_selection (cv->content ());
257 if (content_view && ev.ShiftDown ()) {
258 content_view->set_selected (!content_view->selected ());
262 _down_point = ev.GetPosition ();
266 _down_view->content()->set_change_signals_frequent (true);
271 Timeline::left_up (wxMouseEvent& ev)
276 _down_view->content()->set_change_signals_frequent (false);
279 set_position_from_event (ev);
283 Timeline::mouse_moved (wxMouseEvent& ev)
289 set_position_from_event (ev);
293 Timeline::right_down (wxMouseEvent& ev)
295 shared_ptr<TimelineView> view = event_to_view (ev);
296 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (view);
301 if (!cv->selected ()) {
303 cv->set_selected (true);
306 _menu.popup (_film, selected_content (), ev.GetPosition ());
310 Timeline::maybe_snap (DCPTime a, DCPTime b, optional<DCPTime>& nearest_distance) const
312 DCPTime const d = a - b;
313 if (!nearest_distance || d.abs() < nearest_distance.get().abs()) {
314 nearest_distance = d;
319 Timeline::set_position_from_event (wxMouseEvent& ev)
321 if (!_pixels_per_second) {
325 double const pps = _pixels_per_second.get ();
327 wxPoint const p = ev.GetPosition();
330 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
331 before the drag is considered to have started.
333 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
344 DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / pps);
348 DCPTime const new_end = new_position + _down_view->content()->length_after_trim ();
349 /* Signed `distance' to nearest thing (i.e. negative is left on the timeline,
352 optional<DCPTime> nearest_distance;
354 /* Find the nearest content edge; this is inefficient */
355 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
356 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
357 if (!cv || cv == _down_view) {
361 maybe_snap (cv->content()->position(), new_position, nearest_distance);
362 maybe_snap (cv->content()->position(), new_end, nearest_distance);
363 maybe_snap (cv->content()->end(), new_position, nearest_distance);
364 maybe_snap (cv->content()->end(), new_end, nearest_distance);
367 if (nearest_distance) {
368 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
369 if (nearest_distance.get().abs() < DCPTime::from_seconds ((width() / pps) / 64)) {
370 new_position += nearest_distance.get ();
375 if (new_position < DCPTime ()) {
376 new_position = DCPTime ();
379 _down_view->content()->set_position (new_position);
381 shared_ptr<Film> film = _film.lock ();
382 DCPOMATIC_ASSERT (film);
383 film->set_sequence_video (false);
387 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
389 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
392 shared_ptr<const Film>
393 Timeline::film () const
395 return _film.lock ();
401 setup_pixels_per_second ();
405 Timeline::clear_selection ()
407 for (TimelineViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
408 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
410 cv->set_selected (false);
415 TimelineContentViewList
416 Timeline::selected_views () const
418 TimelineContentViewList sel;
420 for (TimelineViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
421 shared_ptr<TimelineContentView> cv = dynamic_pointer_cast<TimelineContentView> (*i);
422 if (cv && cv->selected()) {
431 Timeline::selected_content () const
434 TimelineContentViewList views = selected_views ();
436 for (TimelineContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
437 sel.push_back ((*i)->content ());