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 (Time t) const
69 return _timeline.tracks_position().x + t * _timeline.pixels_per_time_unit().get_value_or (0);
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 () * _timeline.pixels_per_time_unit().get_value_or(0) + 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 void unset_track () {
127 _track = boost::optional<int> ();
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 Time const position = cont->position ();
150 Time 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 * _timeline.pixels_per_time_unit().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_time_unit ();
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 TimeAxisView : public View
256 TimeAxisView (Timeline& tl, int y)
261 dcpomatic::Rect<int> bbox () const
263 return dcpomatic::Rect<int> (0, _y - 4, _timeline.width(), 24);
274 void do_paint (wxGraphicsContext* gc)
276 if (!_timeline.pixels_per_time_unit()) {
280 double const pptu = _timeline.pixels_per_time_unit().get ();
282 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
284 int mark_interval = rint (128 / (TIME_HZ * pptu));
285 if (mark_interval > 5) {
286 mark_interval -= mark_interval % 5;
288 if (mark_interval > 10) {
289 mark_interval -= mark_interval % 10;
291 if (mark_interval > 60) {
292 mark_interval -= mark_interval % 60;
294 if (mark_interval > 3600) {
295 mark_interval -= mark_interval % 3600;
298 if (mark_interval < 1) {
302 wxGraphicsPath path = gc->CreatePath ();
303 path.MoveToPoint (_timeline.x_offset(), _y);
304 path.AddLineToPoint (_timeline.width(), _y);
305 gc->StrokePath (path);
308 while ((t * pptu) < _timeline.width()) {
309 wxGraphicsPath path = gc->CreatePath ();
310 path.MoveToPoint (time_x (t), _y - 4);
311 path.AddLineToPoint (time_x (t), _y + 4);
312 gc->StrokePath (path);
314 int tc = t / TIME_HZ;
315 int const h = tc / 3600;
317 int const m = tc / 60;
321 wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
324 wxDouble str_descent;
325 wxDouble str_leading;
326 gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
328 int const tx = _timeline.x_offset() + t * pptu;
329 if ((tx + str_width) < _timeline.width()) {
330 gc->DrawText (str, time_x (t), _y + 16);
333 t += mark_interval * TIME_HZ;
342 Timeline::Timeline (wxWindow* parent, FilmEditor* ed, shared_ptr<Film> film)
343 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
346 , _time_axis_view (new TimeAxisView (*this, 32))
349 , _down_view_position (0)
350 , _first_move (false)
355 SetDoubleBuffered (true);
358 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
359 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
360 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
361 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
362 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
363 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
367 SetMinSize (wxSize (640, tracks() * track_height() + 96));
369 _playlist_changed_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
370 _playlist_content_changed_connection = film->playlist()->ContentChanged.connect (bind (&Timeline::playlist_content_changed, this, _2));
378 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
383 gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
385 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
393 Timeline::playlist_changed ()
397 shared_ptr<const Film> fl = _film.lock ();
403 _views.push_back (_time_axis_view);
405 ContentList content = fl->playlist()->content ();
407 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
408 if (dynamic_pointer_cast<VideoContent> (*i)) {
409 _views.push_back (shared_ptr<View> (new VideoContentView (*this, *i)));
411 if (dynamic_pointer_cast<AudioContent> (*i)) {
412 _views.push_back (shared_ptr<View> (new AudioContentView (*this, *i)));
417 setup_pixels_per_time_unit ();
422 Timeline::playlist_content_changed (int property)
426 if (property == ContentProperty::POSITION) {
428 setup_pixels_per_time_unit ();
434 Timeline::assign_tracks ()
436 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
437 shared_ptr<ContentView> c = dynamic_pointer_cast<ContentView> (*i);
443 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
444 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
449 shared_ptr<Content> content = cv->content();
453 ViewList::iterator j = _views.begin();
454 while (j != _views.end()) {
455 shared_ptr<ContentView> test = dynamic_pointer_cast<ContentView> (*j);
461 shared_ptr<Content> test_content = test->content();
463 if (test && test->track() && test->track().get() == t) {
464 bool const no_overlap =
465 (content->position() < test_content->position() && content->end() < test_content->position()) ||
466 (content->position() > test_content->end() && content->end() > test_content->end());
469 /* we have an overlap on track `t' */
478 if (j == _views.end ()) {
479 /* no overlap on `t' */
485 _tracks = max (_tracks, t + 1);
488 _time_axis_view->set_y (tracks() * track_height() + 32);
492 Timeline::tracks () const
498 Timeline::setup_pixels_per_time_unit ()
500 shared_ptr<const Film> film = _film.lock ();
501 if (!film || film->length() == 0) {
505 _pixels_per_time_unit = static_cast<double>(width() - x_offset() * 2) / film->length ();
509 Timeline::event_to_view (wxMouseEvent& ev)
511 ViewList::iterator i = _views.begin();
512 Position<int> const p (ev.GetX(), ev.GetY());
513 while (i != _views.end() && !(*i)->bbox().contains (p)) {
517 if (i == _views.end ()) {
518 return shared_ptr<View> ();
525 Timeline::left_down (wxMouseEvent& ev)
527 shared_ptr<View> view = event_to_view (ev);
528 shared_ptr<ContentView> content_view = dynamic_pointer_cast<ContentView> (view);
533 _down_view = content_view;
534 _down_view_position = content_view->content()->position ();
537 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
538 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
543 if (!ev.ShiftDown ()) {
544 cv->set_selected (view == *i);
548 _film_editor->set_selection (cv->content ());
552 if (content_view && ev.ShiftDown ()) {
553 content_view->set_selected (!content_view->selected ());
557 _down_point = ev.GetPosition ();
561 _down_view->content()->set_change_signals_frequent (true);
566 Timeline::left_up (wxMouseEvent& ev)
571 _down_view->content()->set_change_signals_frequent (false);
574 set_position_from_event (ev);
578 Timeline::mouse_moved (wxMouseEvent& ev)
584 set_position_from_event (ev);
588 Timeline::right_down (wxMouseEvent& ev)
590 shared_ptr<View> view = event_to_view (ev);
591 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (view);
596 if (!cv->selected ()) {
598 cv->set_selected (true);
601 _menu.popup (_film, selected_content (), ev.GetPosition ());
605 Timeline::set_position_from_event (wxMouseEvent& ev)
607 if (!_pixels_per_time_unit) {
611 double const pptu = _pixels_per_time_unit.get ();
613 wxPoint const p = ev.GetPosition();
616 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
617 before the drag is considered to have started.
619 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
630 Time new_position = _down_view_position + (p.x - _down_point.x) / pptu;
635 Time nearest_distance = TIME_MAX;
636 Time nearest_new_position = TIME_MAX;
638 /* Find the nearest content edge; this is inefficient */
639 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
640 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
641 if (!cv || cv == _down_view) {
646 /* Snap starts to ends */
647 Time const d = abs (cv->content()->end() - new_position);
648 if (first || d < nearest_distance) {
649 nearest_distance = d;
650 nearest_new_position = cv->content()->end();
655 /* Snap ends to starts */
656 Time const d = abs (cv->content()->position() - (new_position + _down_view->content()->length_after_trim()));
657 if (d < nearest_distance) {
658 nearest_distance = d;
659 nearest_new_position = cv->content()->position() - _down_view->content()->length_after_trim ();
667 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
668 if (nearest_distance < (width() / pptu) / 32) {
669 new_position = nearest_new_position;
674 if (new_position < 0) {
678 _down_view->content()->set_position (new_position);
680 shared_ptr<Film> film = _film.lock ();
682 film->set_sequence_video (false);
686 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
688 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
691 shared_ptr<const Film>
692 Timeline::film () const
694 return _film.lock ();
700 setup_pixels_per_time_unit ();
704 Timeline::clear_selection ()
706 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
707 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
709 cv->set_selected (false);
714 Timeline::ContentViewList
715 Timeline::selected_views () const
719 for (ViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
720 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
721 if (cv && cv->selected()) {
730 Timeline::selected_content () const
733 ContentViewList views = selected_views ();
735 for (ContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
736 sel.push_back ((*i)->content ());