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();
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() + 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(), _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 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
274 int mark_interval = rint (128 / (TIME_HZ * _timeline.pixels_per_time_unit ()));
275 if (mark_interval > 5) {
276 mark_interval -= mark_interval % 5;
278 if (mark_interval > 10) {
279 mark_interval -= mark_interval % 10;
281 if (mark_interval > 60) {
282 mark_interval -= mark_interval % 60;
284 if (mark_interval > 3600) {
285 mark_interval -= mark_interval % 3600;
288 if (mark_interval < 1) {
292 wxGraphicsPath path = gc->CreatePath ();
293 path.MoveToPoint (_timeline.x_offset(), _y);
294 path.AddLineToPoint (_timeline.width(), _y);
295 gc->StrokePath (path);
298 while ((t * _timeline.pixels_per_time_unit()) < _timeline.width()) {
299 wxGraphicsPath path = gc->CreatePath ();
300 path.MoveToPoint (time_x (t), _y - 4);
301 path.AddLineToPoint (time_x (t), _y + 4);
302 gc->StrokePath (path);
304 int tc = t / TIME_HZ;
305 int const h = tc / 3600;
307 int const m = tc / 60;
311 wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
314 wxDouble str_descent;
315 wxDouble str_leading;
316 gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
318 int const tx = _timeline.x_offset() + t * _timeline.pixels_per_time_unit();
319 if ((tx + str_width) < _timeline.width()) {
320 gc->DrawText (str, time_x (t), _y + 16);
323 t += mark_interval * TIME_HZ;
332 Timeline::Timeline (wxWindow* parent, FilmEditor* ed, shared_ptr<Film> film)
333 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
336 , _time_axis_view (new TimeAxisView (*this, 32))
338 , _pixels_per_time_unit (0)
340 , _down_view_position (0)
341 , _first_move (false)
346 SetDoubleBuffered (true);
349 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
350 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
351 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
352 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
353 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
354 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
358 SetMinSize (wxSize (640, tracks() * track_height() + 96));
360 _playlist_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
368 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
373 gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
375 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
383 Timeline::playlist_changed ()
387 shared_ptr<const Film> fl = _film.lock ();
393 _views.push_back (_time_axis_view);
395 ContentList content = fl->playlist()->content ();
397 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
398 if (dynamic_pointer_cast<VideoContent> (*i)) {
399 _views.push_back (shared_ptr<View> (new VideoContentView (*this, *i)));
401 if (dynamic_pointer_cast<AudioContent> (*i)) {
402 _views.push_back (shared_ptr<View> (new AudioContentView (*this, *i)));
407 setup_pixels_per_time_unit ();
412 Timeline::assign_tracks ()
414 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
415 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
420 shared_ptr<Content> content = cv->content();
424 ViewList::iterator j = _views.begin();
425 while (j != _views.end()) {
426 shared_ptr<ContentView> test = dynamic_pointer_cast<ContentView> (*j);
432 shared_ptr<Content> test_content = test->content();
434 if (test && test->track() && test->track().get() == t) {
435 bool const no_overlap =
436 (content->position() < test_content->position() && content->end() < test_content->position()) ||
437 (content->position() > test_content->end() && content->end() > test_content->end());
440 /* we have an overlap on track `t' */
449 if (j == _views.end ()) {
450 /* no overlap on `t' */
456 _tracks = max (_tracks, t + 1);
459 _time_axis_view->set_y (tracks() * track_height() + 32);
463 Timeline::tracks () const
469 Timeline::setup_pixels_per_time_unit ()
471 shared_ptr<const Film> film = _film.lock ();
472 if (!film || film->length() == 0) {
476 _pixels_per_time_unit = static_cast<double>(width() - x_offset() * 2) / film->length ();
480 Timeline::event_to_view (wxMouseEvent& ev)
482 ViewList::iterator i = _views.begin();
483 Position<int> const p (ev.GetX(), ev.GetY());
484 while (i != _views.end() && !(*i)->bbox().contains (p)) {
488 if (i == _views.end ()) {
489 return shared_ptr<View> ();
496 Timeline::left_down (wxMouseEvent& ev)
498 shared_ptr<View> view = event_to_view (ev);
499 shared_ptr<ContentView> content_view = dynamic_pointer_cast<ContentView> (view);
504 _down_view = content_view;
505 _down_view_position = content_view->content()->position ();
508 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
509 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
514 if (!ev.ShiftDown ()) {
515 cv->set_selected (view == *i);
519 _film_editor->set_selection (cv->content ());
523 if (content_view && ev.ShiftDown ()) {
524 content_view->set_selected (!content_view->selected ());
528 _down_point = ev.GetPosition ();
532 _down_view->content()->set_change_signals_frequent (true);
537 Timeline::left_up (wxMouseEvent& ev)
542 _down_view->content()->set_change_signals_frequent (false);
545 set_position_from_event (ev);
549 Timeline::mouse_moved (wxMouseEvent& ev)
555 set_position_from_event (ev);
559 Timeline::right_down (wxMouseEvent& ev)
561 shared_ptr<View> view = event_to_view (ev);
562 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (view);
567 if (!cv->selected ()) {
569 cv->set_selected (true);
572 _menu.popup (_film, selected_content (), ev.GetPosition ());
576 Timeline::set_position_from_event (wxMouseEvent& ev)
578 wxPoint const p = ev.GetPosition();
581 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
582 before the drag is considered to have started.
584 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
595 Time new_position = _down_view_position + (p.x - _down_point.x) / _pixels_per_time_unit;
600 Time nearest_distance = TIME_MAX;
601 Time nearest_new_position = TIME_MAX;
603 /* Find the nearest content edge; this is inefficient */
604 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
605 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
606 if (!cv || cv == _down_view) {
611 /* Snap starts to ends */
612 Time const d = abs (cv->content()->end() - new_position);
613 if (first || d < nearest_distance) {
614 nearest_distance = d;
615 nearest_new_position = cv->content()->end();
620 /* Snap ends to starts */
621 Time const d = abs (cv->content()->position() - (new_position + _down_view->content()->length_after_trim()));
622 if (d < nearest_distance) {
623 nearest_distance = d;
624 nearest_new_position = cv->content()->position() - _down_view->content()->length_after_trim ();
632 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
633 if (nearest_distance < (width() / pixels_per_time_unit()) / 32) {
634 new_position = nearest_new_position;
639 if (new_position < 0) {
643 _down_view->content()->set_position (new_position);
645 shared_ptr<Film> film = _film.lock ();
647 film->set_sequence_video (false);
651 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
653 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
656 shared_ptr<const Film>
657 Timeline::film () const
659 return _film.lock ();
665 setup_pixels_per_time_unit ();
669 Timeline::clear_selection ()
671 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
672 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
674 cv->set_selected (false);
679 Timeline::ContentViewList
680 Timeline::selected_views () const
684 for (ViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
685 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
686 if (cv && cv->selected()) {
695 Timeline::selected_content () const
698 ContentViewList views = selected_views ();
700 for (ContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
701 sel.push_back ((*i)->content ());