2 Copyright (C) 2013-2014 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 "film_editor.h"
32 using boost::shared_ptr;
33 using boost::weak_ptr;
34 using boost::dynamic_pointer_cast;
36 using boost::optional;
39 * @brief Parent class for components of the timeline (e.g. a piece of content or an axis).
41 class View : public boost::noncopyable
52 void paint (wxGraphicsContext* g)
54 _last_paint_bbox = bbox ();
60 _timeline.force_redraw (_last_paint_bbox);
61 _timeline.force_redraw (bbox ());
64 virtual dcpomatic::Rect<int> bbox () const = 0;
67 virtual void do_paint (wxGraphicsContext *) = 0;
69 int time_x (DCPTime t) const
71 return _timeline.tracks_position().x + t.seconds() * _timeline.pixels_per_second().get_value_or (0);
77 dcpomatic::Rect<int> _last_paint_bbox;
81 /** @class ContentView
82 * @brief Parent class for views of pieces of content.
84 class ContentView : public View
87 ContentView (Timeline& tl, shared_ptr<Content> c)
92 _content_connection = c->Changed.connect (bind (&ContentView::content_changed, this, _2, _3));
95 dcpomatic::Rect<int> bbox () const
99 shared_ptr<const Film> film = _timeline.film ();
100 shared_ptr<const Content> content = _content.lock ();
101 if (!film || !content) {
102 return dcpomatic::Rect<int> ();
105 return dcpomatic::Rect<int> (
106 time_x (content->position ()) - 8,
107 y_pos (_track.get()) - 8,
108 content->length_after_trim().seconds() * _timeline.pixels_per_second().get_value_or(0) + 16,
109 _timeline.track_height() + 16
113 void set_selected (bool s) {
118 bool selected () const {
122 shared_ptr<Content> content () const {
123 return _content.lock ();
126 void set_track (int t) {
130 optional<int> track () const {
134 virtual wxString type () const = 0;
135 virtual wxColour colour () const = 0;
139 void do_paint (wxGraphicsContext* gc)
143 shared_ptr<const Film> film = _timeline.film ();
144 shared_ptr<const Content> cont = content ();
145 if (!film || !cont) {
149 DCPTime const position = cont->position ();
150 DCPTime const len = cont->length_after_trim ();
152 wxColour selected (colour().Red() / 2, colour().Green() / 2, colour().Blue() / 2);
154 gc->SetPen (*wxBLACK_PEN);
156 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 4, wxPENSTYLE_SOLID));
158 gc->SetBrush (*wxTheBrushList->FindOrCreateBrush (selected, wxBRUSHSTYLE_SOLID));
160 gc->SetBrush (*wxTheBrushList->FindOrCreateBrush (colour(), wxBRUSHSTYLE_SOLID));
163 wxGraphicsPath path = gc->CreatePath ();
164 path.MoveToPoint (time_x (position), y_pos (_track.get()) + 4);
165 path.AddLineToPoint (time_x (position + len), y_pos (_track.get()) + 4);
166 path.AddLineToPoint (time_x (position + len), y_pos (_track.get() + 1) - 4);
167 path.AddLineToPoint (time_x (position), y_pos (_track.get() + 1) - 4);
168 path.AddLineToPoint (time_x (position), y_pos (_track.get()) + 4);
169 gc->StrokePath (path);
172 wxString name = wxString::Format (wxT ("%s [%s]"), std_to_wx (cont->path_summary()).data(), type().data());
174 wxDouble name_height;
175 wxDouble name_descent;
176 wxDouble name_leading;
177 gc->GetTextExtent (name, &name_width, &name_height, &name_descent, &name_leading);
179 gc->Clip (wxRegion (time_x (position), y_pos (_track.get()), len.seconds() * _timeline.pixels_per_second().get_value_or(0), _timeline.track_height()));
180 gc->DrawText (name, time_x (position) + 12, y_pos (_track.get() + 1) - name_height - 4);
184 int y_pos (int t) const
186 return _timeline.tracks_position().y + t * _timeline.track_height();
189 void content_changed (int p, bool frequent)
193 if (p == ContentProperty::POSITION || p == ContentProperty::LENGTH) {
198 _timeline.setup_pixels_per_second ();
199 _timeline.Refresh ();
203 boost::weak_ptr<Content> _content;
204 optional<int> _track;
207 boost::signals2::scoped_connection _content_connection;
210 class AudioContentView : public ContentView
213 AudioContentView (Timeline& tl, shared_ptr<Content> c)
214 : ContentView (tl, c)
218 wxString type () const
223 wxColour colour () const
225 return wxColour (149, 121, 232, 255);
229 class VideoContentView : public ContentView
232 VideoContentView (Timeline& tl, shared_ptr<Content> c)
233 : ContentView (tl, c)
238 wxString type () const
240 if (dynamic_pointer_cast<FFmpegContent> (content ())) {
247 wxColour colour () const
249 return wxColour (242, 92, 120, 255);
253 class SubtitleContentView : public ContentView
256 SubtitleContentView (Timeline& tl, shared_ptr<Content> c)
257 : ContentView (tl, c)
261 wxString type () const
263 return _("subtitles");
266 wxColour colour () const
268 return wxColour (163, 255, 154, 255);
272 class TimeAxisView : public View
275 TimeAxisView (Timeline& tl, int y)
280 dcpomatic::Rect<int> bbox () const
282 return dcpomatic::Rect<int> (0, _y - 4, _timeline.width(), 24);
293 void do_paint (wxGraphicsContext* gc)
295 if (!_timeline.pixels_per_second()) {
299 double const pps = _timeline.pixels_per_second().get ();
301 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
303 double mark_interval = rint (128 / pps);
304 if (mark_interval > 5) {
305 mark_interval -= int (rint (mark_interval)) % 5;
307 if (mark_interval > 10) {
308 mark_interval -= int (rint (mark_interval)) % 10;
310 if (mark_interval > 60) {
311 mark_interval -= int (rint (mark_interval)) % 60;
313 if (mark_interval > 3600) {
314 mark_interval -= int (rint (mark_interval)) % 3600;
317 if (mark_interval < 1) {
321 wxGraphicsPath path = gc->CreatePath ();
322 path.MoveToPoint (_timeline.x_offset(), _y);
323 path.AddLineToPoint (_timeline.width(), _y);
324 gc->StrokePath (path);
326 /* Time in seconds */
328 while ((t.seconds() * pps) < _timeline.width()) {
329 wxGraphicsPath path = gc->CreatePath ();
330 path.MoveToPoint (time_x (t), _y - 4);
331 path.AddLineToPoint (time_x (t), _y + 4);
332 gc->StrokePath (path);
334 double tc = t.seconds ();
335 int const h = tc / 3600;
337 int const m = tc / 60;
341 wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
344 wxDouble str_descent;
345 wxDouble str_leading;
346 gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
348 int const tx = _timeline.x_offset() + t.seconds() * pps;
349 if ((tx + str_width) < _timeline.width()) {
350 gc->DrawText (str, time_x (t), _y + 16);
353 t += DCPTime::from_seconds (mark_interval);
362 Timeline::Timeline (wxWindow* parent, FilmEditor* ed, shared_ptr<Film> film)
363 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
366 , _time_axis_view (new TimeAxisView (*this, 32))
369 , _down_view_position (0)
370 , _first_move (false)
375 SetDoubleBuffered (true);
378 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
379 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
380 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
381 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
382 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
383 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
387 SetMinSize (wxSize (640, tracks() * track_height() + 96));
389 _playlist_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
397 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
402 gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
404 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
412 Timeline::playlist_changed ()
416 shared_ptr<const Film> fl = _film.lock ();
422 _views.push_back (_time_axis_view);
424 ContentList content = fl->playlist()->content ();
426 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
427 if (dynamic_pointer_cast<VideoContent> (*i)) {
428 _views.push_back (shared_ptr<View> (new VideoContentView (*this, *i)));
430 if (dynamic_pointer_cast<AudioContent> (*i)) {
431 _views.push_back (shared_ptr<View> (new AudioContentView (*this, *i)));
433 if (dynamic_pointer_cast<SubtitleContent> (*i)) {
434 _views.push_back (shared_ptr<View> (new SubtitleContentView (*this, *i)));
439 setup_pixels_per_second ();
444 Timeline::assign_tracks ()
446 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
447 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
452 shared_ptr<Content> content = cv->content();
456 ViewList::iterator j = _views.begin();
457 while (j != _views.end()) {
458 shared_ptr<ContentView> test = dynamic_pointer_cast<ContentView> (*j);
464 shared_ptr<Content> test_content = test->content();
466 if (test && test->track() && test->track().get() == t) {
467 bool const no_overlap =
468 (content->position() < test_content->position() && content->end() < test_content->position()) ||
469 (content->position() > test_content->end() && content->end() > test_content->end());
472 /* we have an overlap on track `t' */
481 if (j == _views.end ()) {
482 /* no overlap on `t' */
488 _tracks = max (_tracks, t + 1);
491 _time_axis_view->set_y (tracks() * track_height() + 32);
495 Timeline::tracks () const
501 Timeline::setup_pixels_per_second ()
503 shared_ptr<const Film> film = _film.lock ();
504 if (!film || film->length() == DCPTime ()) {
508 _pixels_per_second = static_cast<double>(width() - x_offset() * 2) / film->length().seconds ();
512 Timeline::event_to_view (wxMouseEvent& ev)
514 ViewList::iterator i = _views.begin();
515 Position<int> const p (ev.GetX(), ev.GetY());
516 while (i != _views.end() && !(*i)->bbox().contains (p)) {
520 if (i == _views.end ()) {
521 return shared_ptr<View> ();
528 Timeline::left_down (wxMouseEvent& ev)
530 shared_ptr<View> view = event_to_view (ev);
531 shared_ptr<ContentView> content_view = dynamic_pointer_cast<ContentView> (view);
536 _down_view = content_view;
537 _down_view_position = content_view->content()->position ();
540 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
541 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
546 if (!ev.ShiftDown ()) {
547 cv->set_selected (view == *i);
551 _film_editor->set_selection (cv->content ());
555 if (content_view && ev.ShiftDown ()) {
556 content_view->set_selected (!content_view->selected ());
560 _down_point = ev.GetPosition ();
564 _down_view->content()->set_change_signals_frequent (true);
569 Timeline::left_up (wxMouseEvent& ev)
574 _down_view->content()->set_change_signals_frequent (false);
577 set_position_from_event (ev);
581 Timeline::mouse_moved (wxMouseEvent& ev)
587 set_position_from_event (ev);
591 Timeline::right_down (wxMouseEvent& ev)
593 shared_ptr<View> view = event_to_view (ev);
594 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (view);
599 if (!cv->selected ()) {
601 cv->set_selected (true);
604 _menu.popup (_film, selected_content (), ev.GetPosition ());
608 Timeline::set_position_from_event (wxMouseEvent& ev)
610 if (!_pixels_per_second) {
614 double const pps = _pixels_per_second.get ();
616 wxPoint const p = ev.GetPosition();
619 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
620 before the drag is considered to have started.
622 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
633 DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / pps);
638 DCPTime nearest_distance = DCPTime::max ();
639 DCPTime nearest_new_position = DCPTime::max ();
641 /* Find the nearest content edge; this is inefficient */
642 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
643 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
644 if (!cv || cv == _down_view) {
649 /* Snap starts to ends */
650 DCPTime const d = DCPTime (cv->content()->end() - new_position).abs ();
651 if (first || d < nearest_distance) {
652 nearest_distance = d;
653 nearest_new_position = cv->content()->end();
658 /* Snap ends to starts */
659 DCPTime const d = DCPTime (
660 cv->content()->position() - (new_position + _down_view->content()->length_after_trim())
663 if (d < nearest_distance) {
664 nearest_distance = d;
665 nearest_new_position = cv->content()->position() - _down_view->content()->length_after_trim ();
673 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
674 if (nearest_distance < DCPTime::from_seconds ((width() / pps) / 32)) {
675 new_position = nearest_new_position;
680 if (new_position < DCPTime ()) {
681 new_position = DCPTime ();
684 _down_view->content()->set_position (new_position);
686 shared_ptr<Film> film = _film.lock ();
688 film->set_sequence_video (false);
692 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
694 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
697 shared_ptr<const Film>
698 Timeline::film () const
700 return _film.lock ();
706 setup_pixels_per_second ();
710 Timeline::clear_selection ()
712 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
713 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
715 cv->set_selected (false);
720 Timeline::ContentViewList
721 Timeline::selected_views () const
725 for (ViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
726 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
727 if (cv && cv->selected()) {
736 Timeline::selected_content () const
739 ContentViewList views = selected_views ();
741 for (ContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
742 sel.push_back ((*i)->content ());