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 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 Time const position = cont->position ();
146 Time 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 * _timeline.pixels_per_time_unit().get_value_or(0), _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_time_unit ();
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 TimeAxisView : public View
252 TimeAxisView (Timeline& tl, int y)
257 dcpomatic::Rect<int> bbox () const
259 return dcpomatic::Rect<int> (0, _y - 4, _timeline.width(), 24);
270 void do_paint (wxGraphicsContext* gc)
272 if (!_timeline.pixels_per_time_unit()) {
276 double const pptu = _timeline.pixels_per_time_unit().get ();
278 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
280 int mark_interval = rint (128 / (TIME_HZ * pptu));
281 if (mark_interval > 5) {
282 mark_interval -= mark_interval % 5;
284 if (mark_interval > 10) {
285 mark_interval -= mark_interval % 10;
287 if (mark_interval > 60) {
288 mark_interval -= mark_interval % 60;
290 if (mark_interval > 3600) {
291 mark_interval -= mark_interval % 3600;
294 if (mark_interval < 1) {
298 wxGraphicsPath path = gc->CreatePath ();
299 path.MoveToPoint (_timeline.x_offset(), _y);
300 path.AddLineToPoint (_timeline.width(), _y);
301 gc->StrokePath (path);
304 while ((t * pptu) < _timeline.width()) {
305 wxGraphicsPath path = gc->CreatePath ();
306 path.MoveToPoint (time_x (t), _y - 4);
307 path.AddLineToPoint (time_x (t), _y + 4);
308 gc->StrokePath (path);
310 int tc = t / TIME_HZ;
311 int const h = tc / 3600;
313 int const m = tc / 60;
317 wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
320 wxDouble str_descent;
321 wxDouble str_leading;
322 gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
324 int const tx = _timeline.x_offset() + t * pptu;
325 if ((tx + str_width) < _timeline.width()) {
326 gc->DrawText (str, time_x (t), _y + 16);
329 t += mark_interval * TIME_HZ;
338 Timeline::Timeline (wxWindow* parent, FilmEditor* ed, shared_ptr<Film> film)
339 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
342 , _time_axis_view (new TimeAxisView (*this, 32))
345 , _down_view_position (0)
346 , _first_move (false)
351 SetDoubleBuffered (true);
354 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
355 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
356 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
357 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
358 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
359 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
363 SetMinSize (wxSize (640, tracks() * track_height() + 96));
365 _playlist_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
373 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
378 gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
380 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
388 Timeline::playlist_changed ()
392 shared_ptr<const Film> fl = _film.lock ();
398 _views.push_back (_time_axis_view);
400 ContentList content = fl->playlist()->content ();
402 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
403 if (dynamic_pointer_cast<VideoContent> (*i)) {
404 _views.push_back (shared_ptr<View> (new VideoContentView (*this, *i)));
406 if (dynamic_pointer_cast<AudioContent> (*i)) {
407 _views.push_back (shared_ptr<View> (new AudioContentView (*this, *i)));
412 setup_pixels_per_time_unit ();
417 Timeline::assign_tracks ()
419 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
420 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
425 shared_ptr<Content> content = cv->content();
429 ViewList::iterator j = _views.begin();
430 while (j != _views.end()) {
431 shared_ptr<ContentView> test = dynamic_pointer_cast<ContentView> (*j);
437 shared_ptr<Content> test_content = test->content();
439 if (test && test->track() && test->track().get() == t) {
440 bool const no_overlap =
441 (content->position() < test_content->position() && content->end() < test_content->position()) ||
442 (content->position() > test_content->end() && content->end() > test_content->end());
445 /* we have an overlap on track `t' */
454 if (j == _views.end ()) {
455 /* no overlap on `t' */
461 _tracks = max (_tracks, t + 1);
464 _time_axis_view->set_y (tracks() * track_height() + 32);
468 Timeline::tracks () const
474 Timeline::setup_pixels_per_time_unit ()
476 shared_ptr<const Film> film = _film.lock ();
477 if (!film || film->length() == 0) {
481 _pixels_per_time_unit = static_cast<double>(width() - x_offset() * 2) / film->length ();
485 Timeline::event_to_view (wxMouseEvent& ev)
487 ViewList::iterator i = _views.begin();
488 Position<int> const p (ev.GetX(), ev.GetY());
489 while (i != _views.end() && !(*i)->bbox().contains (p)) {
493 if (i == _views.end ()) {
494 return shared_ptr<View> ();
501 Timeline::left_down (wxMouseEvent& ev)
503 shared_ptr<View> view = event_to_view (ev);
504 shared_ptr<ContentView> content_view = dynamic_pointer_cast<ContentView> (view);
509 _down_view = content_view;
510 _down_view_position = content_view->content()->position ();
513 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
514 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
519 if (!ev.ShiftDown ()) {
520 cv->set_selected (view == *i);
524 _film_editor->set_selection (cv->content ());
528 if (content_view && ev.ShiftDown ()) {
529 content_view->set_selected (!content_view->selected ());
533 _down_point = ev.GetPosition ();
537 _down_view->content()->set_change_signals_frequent (true);
542 Timeline::left_up (wxMouseEvent& ev)
547 _down_view->content()->set_change_signals_frequent (false);
550 set_position_from_event (ev);
554 Timeline::mouse_moved (wxMouseEvent& ev)
560 set_position_from_event (ev);
564 Timeline::right_down (wxMouseEvent& ev)
566 shared_ptr<View> view = event_to_view (ev);
567 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (view);
572 if (!cv->selected ()) {
574 cv->set_selected (true);
577 _menu.popup (_film, selected_content (), ev.GetPosition ());
581 Timeline::set_position_from_event (wxMouseEvent& ev)
583 if (!_pixels_per_time_unit) {
587 double const pptu = _pixels_per_time_unit.get ();
589 wxPoint const p = ev.GetPosition();
592 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
593 before the drag is considered to have started.
595 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
606 Time new_position = _down_view_position + (p.x - _down_point.x) / pptu;
611 Time nearest_distance = TIME_MAX;
612 Time nearest_new_position = TIME_MAX;
614 /* Find the nearest content edge; this is inefficient */
615 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
616 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
617 if (!cv || cv == _down_view) {
622 /* Snap starts to ends */
623 Time const d = abs (cv->content()->end() - new_position);
624 if (first || d < nearest_distance) {
625 nearest_distance = d;
626 nearest_new_position = cv->content()->end();
631 /* Snap ends to starts */
632 Time const d = abs (cv->content()->position() - (new_position + _down_view->content()->length_after_trim()));
633 if (d < nearest_distance) {
634 nearest_distance = d;
635 nearest_new_position = cv->content()->position() - _down_view->content()->length_after_trim ();
643 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
644 if (nearest_distance < (width() / pptu) / 32) {
645 new_position = nearest_new_position;
650 if (new_position < 0) {
654 _down_view->content()->set_position (new_position);
656 shared_ptr<Film> film = _film.lock ();
658 film->set_sequence_video (false);
662 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
664 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
667 shared_ptr<const Film>
668 Timeline::film () const
670 return _film.lock ();
676 setup_pixels_per_time_unit ();
680 Timeline::clear_selection ()
682 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
683 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
685 cv->set_selected (false);
690 Timeline::ContentViewList
691 Timeline::selected_views () const
695 for (ViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
696 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
697 if (cv && cv->selected()) {
706 Timeline::selected_content () const
709 ContentViewList views = selected_views ();
711 for (ContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
712 sel.push_back ((*i)->content ());