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;
38 /** Parent class for components of the timeline (e.g. a piece of content or an axis) */
39 class View : public boost::noncopyable
50 void paint (wxGraphicsContext* g)
52 _last_paint_bbox = bbox ();
58 _timeline.force_redraw (_last_paint_bbox);
59 _timeline.force_redraw (bbox ());
62 virtual dcpomatic::Rect<int> bbox () const = 0;
65 virtual void do_paint (wxGraphicsContext *) = 0;
67 int time_x (DCPTime t) const
69 return _timeline.tracks_position().x + t.seconds() * _timeline.pixels_per_second ();
75 dcpomatic::Rect<int> _last_paint_bbox;
79 /** Parent class for views of pieces of content */
80 class ContentView : public View
83 ContentView (Timeline& tl, shared_ptr<Content> c)
88 _content_connection = c->Changed.connect (bind (&ContentView::content_changed, this, _2, _3));
91 dcpomatic::Rect<int> bbox () const
95 shared_ptr<const Film> film = _timeline.film ();
96 shared_ptr<const Content> content = _content.lock ();
97 if (!film || !content) {
98 return dcpomatic::Rect<int> ();
101 return dcpomatic::Rect<int> (
102 time_x (content->position ()) - 8,
103 y_pos (_track.get()) - 8,
104 content->length_after_trim().seconds() * _timeline.pixels_per_second() + 16,
105 _timeline.track_height() + 16
109 void set_selected (bool s) {
114 bool selected () const {
118 shared_ptr<Content> content () const {
119 return _content.lock ();
122 void set_track (int t) {
126 optional<int> track () const {
130 virtual wxString type () const = 0;
131 virtual wxColour colour () const = 0;
135 void do_paint (wxGraphicsContext* gc)
139 shared_ptr<const Film> film = _timeline.film ();
140 shared_ptr<const Content> cont = content ();
141 if (!film || !cont) {
145 DCPTime const position = cont->position ();
146 DCPTime const len = cont->length_after_trim ();
148 wxColour selected (colour().Red() / 2, colour().Green() / 2, colour().Blue() / 2);
150 gc->SetPen (*wxBLACK_PEN);
152 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 4, wxPENSTYLE_SOLID));
154 gc->SetBrush (*wxTheBrushList->FindOrCreateBrush (selected, wxBRUSHSTYLE_SOLID));
156 gc->SetBrush (*wxTheBrushList->FindOrCreateBrush (colour(), wxBRUSHSTYLE_SOLID));
159 wxGraphicsPath path = gc->CreatePath ();
160 path.MoveToPoint (time_x (position), y_pos (_track.get()) + 4);
161 path.AddLineToPoint (time_x (position + len), y_pos (_track.get()) + 4);
162 path.AddLineToPoint (time_x (position + len), y_pos (_track.get() + 1) - 4);
163 path.AddLineToPoint (time_x (position), y_pos (_track.get() + 1) - 4);
164 path.AddLineToPoint (time_x (position), y_pos (_track.get()) + 4);
165 gc->StrokePath (path);
168 wxString name = wxString::Format (wxT ("%s [%s]"), std_to_wx (cont->path_summary()).data(), type().data());
170 wxDouble name_height;
171 wxDouble name_descent;
172 wxDouble name_leading;
173 gc->GetTextExtent (name, &name_width, &name_height, &name_descent, &name_leading);
175 gc->Clip (wxRegion (time_x (position), y_pos (_track.get()), len.seconds() * _timeline.pixels_per_second(), _timeline.track_height()));
176 gc->DrawText (name, time_x (position) + 12, y_pos (_track.get() + 1) - name_height - 4);
180 int y_pos (int t) const
182 return _timeline.tracks_position().y + t * _timeline.track_height();
185 void content_changed (int p, bool frequent)
189 if (p == ContentProperty::POSITION || p == ContentProperty::LENGTH) {
194 _timeline.setup_pixels_per_second ();
195 _timeline.Refresh ();
199 boost::weak_ptr<Content> _content;
200 optional<int> _track;
203 boost::signals2::scoped_connection _content_connection;
206 class AudioContentView : public ContentView
209 AudioContentView (Timeline& tl, shared_ptr<Content> c)
210 : ContentView (tl, c)
214 wxString type () const
219 wxColour colour () const
221 return wxColour (149, 121, 232, 255);
225 class VideoContentView : public ContentView
228 VideoContentView (Timeline& tl, shared_ptr<Content> c)
229 : ContentView (tl, c)
234 wxString type () const
236 if (dynamic_pointer_cast<FFmpegContent> (content ())) {
243 wxColour colour () const
245 return wxColour (242, 92, 120, 255);
249 class SubtitleContentView : public ContentView
252 SubtitleContentView (Timeline& tl, shared_ptr<Content> c)
253 : ContentView (tl, c)
257 wxString type () const
259 return _("subtitles");
262 wxColour colour () const
264 return wxColour (163, 255, 154, 255);
268 class TimeAxisView : public View
271 TimeAxisView (Timeline& tl, int y)
276 dcpomatic::Rect<int> bbox () const
278 return dcpomatic::Rect<int> (0, _y - 4, _timeline.width(), 24);
289 void do_paint (wxGraphicsContext* gc)
291 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
293 double mark_interval = rint (128 / _timeline.pixels_per_second ());
294 if (mark_interval > 5) {
295 mark_interval -= int (rint (mark_interval)) % 5;
297 if (mark_interval > 10) {
298 mark_interval -= int (rint (mark_interval)) % 10;
300 if (mark_interval > 60) {
301 mark_interval -= int (rint (mark_interval)) % 60;
303 if (mark_interval > 3600) {
304 mark_interval -= int (rint (mark_interval)) % 3600;
307 if (mark_interval < 1) {
311 wxGraphicsPath path = gc->CreatePath ();
312 path.MoveToPoint (_timeline.x_offset(), _y);
313 path.AddLineToPoint (_timeline.width(), _y);
314 gc->StrokePath (path);
316 /* Time in seconds */
318 while ((t.seconds() * _timeline.pixels_per_second()) < _timeline.width()) {
319 wxGraphicsPath path = gc->CreatePath ();
320 path.MoveToPoint (time_x (t), _y - 4);
321 path.AddLineToPoint (time_x (t), _y + 4);
322 gc->StrokePath (path);
324 double tc = t.seconds ();
325 int const h = tc / 3600;
327 int const m = tc / 60;
331 wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
334 wxDouble str_descent;
335 wxDouble str_leading;
336 gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
338 int const tx = _timeline.x_offset() + t.seconds() * _timeline.pixels_per_second();
339 if ((tx + str_width) < _timeline.width()) {
340 gc->DrawText (str, time_x (t), _y + 16);
343 t += DCPTime::from_seconds (mark_interval);
352 Timeline::Timeline (wxWindow* parent, FilmEditor* ed, shared_ptr<Film> film)
353 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
356 , _time_axis_view (new TimeAxisView (*this, 32))
358 , _pixels_per_second (0)
360 , _down_view_position (0)
361 , _first_move (false)
366 SetDoubleBuffered (true);
369 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
370 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
371 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
372 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
373 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
374 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
378 SetMinSize (wxSize (640, tracks() * track_height() + 96));
380 _playlist_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
388 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
393 gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
395 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
403 Timeline::playlist_changed ()
407 shared_ptr<const Film> fl = _film.lock ();
413 _views.push_back (_time_axis_view);
415 ContentList content = fl->playlist()->content ();
417 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
418 if (dynamic_pointer_cast<VideoContent> (*i)) {
419 _views.push_back (shared_ptr<View> (new VideoContentView (*this, *i)));
421 if (dynamic_pointer_cast<AudioContent> (*i)) {
422 _views.push_back (shared_ptr<View> (new AudioContentView (*this, *i)));
424 if (dynamic_pointer_cast<SubtitleContent> (*i)) {
425 _views.push_back (shared_ptr<View> (new SubtitleContentView (*this, *i)));
430 setup_pixels_per_second ();
435 Timeline::assign_tracks ()
437 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
438 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
443 shared_ptr<Content> content = cv->content();
447 ViewList::iterator j = _views.begin();
448 while (j != _views.end()) {
449 shared_ptr<ContentView> test = dynamic_pointer_cast<ContentView> (*j);
455 shared_ptr<Content> test_content = test->content();
457 if (test && test->track() && test->track().get() == t) {
458 bool const no_overlap =
459 (content->position() < test_content->position() && content->end() < test_content->position()) ||
460 (content->position() > test_content->end() && content->end() > test_content->end());
463 /* we have an overlap on track `t' */
472 if (j == _views.end ()) {
473 /* no overlap on `t' */
479 _tracks = max (_tracks, t + 1);
482 _time_axis_view->set_y (tracks() * track_height() + 32);
486 Timeline::tracks () const
492 Timeline::setup_pixels_per_second ()
494 shared_ptr<const Film> film = _film.lock ();
495 if (!film || film->length() == DCPTime ()) {
499 _pixels_per_second = static_cast<double>(width() - x_offset() * 2) / film->length().seconds ();
503 Timeline::event_to_view (wxMouseEvent& ev)
505 ViewList::iterator i = _views.begin();
506 Position<int> const p (ev.GetX(), ev.GetY());
507 while (i != _views.end() && !(*i)->bbox().contains (p)) {
511 if (i == _views.end ()) {
512 return shared_ptr<View> ();
519 Timeline::left_down (wxMouseEvent& ev)
521 shared_ptr<View> view = event_to_view (ev);
522 shared_ptr<ContentView> content_view = dynamic_pointer_cast<ContentView> (view);
527 _down_view = content_view;
528 _down_view_position = content_view->content()->position ();
531 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
532 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
537 if (!ev.ShiftDown ()) {
538 cv->set_selected (view == *i);
542 _film_editor->set_selection (cv->content ());
546 if (content_view && ev.ShiftDown ()) {
547 content_view->set_selected (!content_view->selected ());
551 _down_point = ev.GetPosition ();
555 _down_view->content()->set_change_signals_frequent (true);
560 Timeline::left_up (wxMouseEvent& ev)
565 _down_view->content()->set_change_signals_frequent (false);
568 set_position_from_event (ev);
572 Timeline::mouse_moved (wxMouseEvent& ev)
578 set_position_from_event (ev);
582 Timeline::right_down (wxMouseEvent& ev)
584 shared_ptr<View> view = event_to_view (ev);
585 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (view);
590 if (!cv->selected ()) {
592 cv->set_selected (true);
595 _menu.popup (_film, selected_content (), ev.GetPosition ());
599 Timeline::set_position_from_event (wxMouseEvent& ev)
601 wxPoint const p = ev.GetPosition();
604 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
605 before the drag is considered to have started.
607 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
618 DCPTime new_position = _down_view_position + DCPTime::from_seconds ((p.x - _down_point.x) / _pixels_per_second);
623 DCPTime nearest_distance = DCPTime::max ();
624 DCPTime nearest_new_position = DCPTime::max ();
626 /* Find the nearest content edge; this is inefficient */
627 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
628 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
629 if (!cv || cv == _down_view) {
634 /* Snap starts to ends */
635 DCPTime const d = DCPTime (cv->content()->end() - new_position).abs ();
636 if (first || d < nearest_distance) {
637 nearest_distance = d;
638 nearest_new_position = cv->content()->end();
643 /* Snap ends to starts */
644 DCPTime const d = DCPTime (
645 cv->content()->position() - (new_position + _down_view->content()->length_after_trim())
648 if (d < nearest_distance) {
649 nearest_distance = d;
650 nearest_new_position = cv->content()->position() - _down_view->content()->length_after_trim ();
658 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
659 if (nearest_distance < DCPTime::from_seconds ((width() / pixels_per_second()) / 32)) {
660 new_position = nearest_new_position;
665 if (new_position < DCPTime ()) {
666 new_position = DCPTime ();
669 _down_view->content()->set_position (new_position);
671 shared_ptr<Film> film = _film.lock ();
673 film->set_sequence_video (false);
677 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
679 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
682 shared_ptr<const Film>
683 Timeline::film () const
685 return _film.lock ();
691 setup_pixels_per_second ();
695 Timeline::clear_selection ()
697 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
698 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
700 cv->set_selected (false);
705 Timeline::ContentViewList
706 Timeline::selected_views () const
710 for (ViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
711 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
712 if (cv && cv->selected()) {
721 Timeline::selected_content () const
724 ContentViewList views = selected_views ();
726 for (ContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
727 sel.push_back ((*i)->content ());