2 Copyright (C) 2013 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)
89 _content_connection = c->Changed.connect (bind (&ContentView::content_changed, this, _2, _3));
92 dcpomatic::Rect<int> bbox () const
94 shared_ptr<const Film> film = _timeline.film ();
95 shared_ptr<const Content> content = _content.lock ();
96 if (!film || !content) {
97 return dcpomatic::Rect<int> ();
100 return dcpomatic::Rect<int> (
101 time_x (content->position ()) - 8,
103 content->length_after_trim () * _timeline.pixels_per_time_unit() + 16,
104 _timeline.track_height() + 16
108 void set_selected (bool s) {
113 bool selected () const {
117 shared_ptr<Content> content () const {
118 return _content.lock ();
121 void set_track (int t) {
129 virtual wxString type () const = 0;
130 virtual wxColour colour () const = 0;
134 void do_paint (wxGraphicsContext* gc)
136 shared_ptr<const Film> film = _timeline.film ();
137 shared_ptr<const Content> cont = content ();
138 if (!film || !cont) {
142 Time const position = cont->position ();
143 Time const len = cont->length_after_trim ();
145 wxColour selected (colour().Red() / 2, colour().Green() / 2, colour().Blue() / 2);
147 gc->SetPen (*wxBLACK_PEN);
149 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 4, wxPENSTYLE_SOLID));
151 gc->SetBrush (*wxTheBrushList->FindOrCreateBrush (selected, wxBRUSHSTYLE_SOLID));
153 gc->SetBrush (*wxTheBrushList->FindOrCreateBrush (colour(), wxBRUSHSTYLE_SOLID));
156 wxGraphicsPath path = gc->CreatePath ();
157 path.MoveToPoint (time_x (position), y_pos (_track) + 4);
158 path.AddLineToPoint (time_x (position + len), y_pos (_track) + 4);
159 path.AddLineToPoint (time_x (position + len), y_pos (_track + 1) - 4);
160 path.AddLineToPoint (time_x (position), y_pos (_track + 1) - 4);
161 path.AddLineToPoint (time_x (position), y_pos (_track) + 4);
162 gc->StrokePath (path);
165 wxString name = wxString::Format (wxT ("%s [%s]"), std_to_wx (cont->path().filename().string()).data(), type().data());
167 wxDouble name_height;
168 wxDouble name_descent;
169 wxDouble name_leading;
170 gc->GetTextExtent (name, &name_width, &name_height, &name_descent, &name_leading);
172 gc->Clip (wxRegion (time_x (position), y_pos (_track), len * _timeline.pixels_per_time_unit(), _timeline.track_height()));
173 gc->DrawText (name, time_x (position) + 12, y_pos (_track + 1) - name_height - 4);
177 int y_pos (int t) const
179 return _timeline.tracks_position().y + t * _timeline.track_height();
182 void content_changed (int p, bool frequent)
186 if (p == ContentProperty::POSITION || p == ContentProperty::LENGTH) {
191 _timeline.setup_pixels_per_time_unit ();
192 _timeline.Refresh ();
196 boost::weak_ptr<Content> _content;
200 boost::signals2::scoped_connection _content_connection;
203 class AudioContentView : public ContentView
206 AudioContentView (Timeline& tl, shared_ptr<Content> c)
207 : ContentView (tl, c)
211 wxString type () const
216 wxColour colour () const
218 return wxColour (149, 121, 232, 255);
222 class VideoContentView : public ContentView
225 VideoContentView (Timeline& tl, shared_ptr<Content> c)
226 : ContentView (tl, c)
231 wxString type () const
233 if (dynamic_pointer_cast<FFmpegContent> (content ())) {
240 wxColour colour () const
242 return wxColour (242, 92, 120, 255);
246 class TimeAxisView : public View
249 TimeAxisView (Timeline& tl, int y)
254 dcpomatic::Rect<int> bbox () const
256 return dcpomatic::Rect<int> (0, _y - 4, _timeline.width(), 24);
267 void do_paint (wxGraphicsContext* gc)
269 gc->SetPen (*wxThePenList->FindOrCreatePen (wxColour (0, 0, 0), 1, wxPENSTYLE_SOLID));
271 int mark_interval = rint (128 / (TIME_HZ * _timeline.pixels_per_time_unit ()));
272 if (mark_interval > 5) {
273 mark_interval -= mark_interval % 5;
275 if (mark_interval > 10) {
276 mark_interval -= mark_interval % 10;
278 if (mark_interval > 60) {
279 mark_interval -= mark_interval % 60;
281 if (mark_interval > 3600) {
282 mark_interval -= mark_interval % 3600;
285 if (mark_interval < 1) {
289 wxGraphicsPath path = gc->CreatePath ();
290 path.MoveToPoint (_timeline.x_offset(), _y);
291 path.AddLineToPoint (_timeline.width(), _y);
292 gc->StrokePath (path);
295 while ((t * _timeline.pixels_per_time_unit()) < _timeline.width()) {
296 wxGraphicsPath path = gc->CreatePath ();
297 path.MoveToPoint (time_x (t), _y - 4);
298 path.AddLineToPoint (time_x (t), _y + 4);
299 gc->StrokePath (path);
301 int tc = t / TIME_HZ;
302 int const h = tc / 3600;
304 int const m = tc / 60;
308 wxString str = wxString::Format (wxT ("%02d:%02d:%02d"), h, m, s);
311 wxDouble str_descent;
312 wxDouble str_leading;
313 gc->GetTextExtent (str, &str_width, &str_height, &str_descent, &str_leading);
315 int const tx = _timeline.x_offset() + t * _timeline.pixels_per_time_unit();
316 if ((tx + str_width) < _timeline.width()) {
317 gc->DrawText (str, time_x (t), _y + 16);
320 t += mark_interval * TIME_HZ;
329 Timeline::Timeline (wxWindow* parent, FilmEditor* ed, shared_ptr<Film> film)
330 : wxPanel (parent, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxFULL_REPAINT_ON_RESIZE)
333 , _time_axis_view (new TimeAxisView (*this, 32))
335 , _pixels_per_time_unit (0)
337 , _down_view_position (0)
338 , _first_move (false)
343 SetDoubleBuffered (true);
346 Bind (wxEVT_PAINT, boost::bind (&Timeline::paint, this));
347 Bind (wxEVT_LEFT_DOWN, boost::bind (&Timeline::left_down, this, _1));
348 Bind (wxEVT_LEFT_UP, boost::bind (&Timeline::left_up, this, _1));
349 Bind (wxEVT_RIGHT_DOWN, boost::bind (&Timeline::right_down, this, _1));
350 Bind (wxEVT_MOTION, boost::bind (&Timeline::mouse_moved, this, _1));
351 Bind (wxEVT_SIZE, boost::bind (&Timeline::resized, this));
355 SetMinSize (wxSize (640, tracks() * track_height() + 96));
357 _playlist_connection = film->playlist()->Changed.connect (bind (&Timeline::playlist_changed, this));
365 wxGraphicsContext* gc = wxGraphicsContext::Create (dc);
370 gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
372 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
380 Timeline::playlist_changed ()
384 shared_ptr<const Film> fl = _film.lock ();
390 _views.push_back (_time_axis_view);
392 ContentList content = fl->playlist()->content ();
394 for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
395 if (dynamic_pointer_cast<VideoContent> (*i)) {
396 _views.push_back (shared_ptr<View> (new VideoContentView (*this, *i)));
398 if (dynamic_pointer_cast<AudioContent> (*i)) {
399 _views.push_back (shared_ptr<View> (new AudioContentView (*this, *i)));
404 setup_pixels_per_time_unit ();
409 Timeline::assign_tracks ()
411 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
412 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
419 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
420 shared_ptr<AudioContentView> acv = dynamic_pointer_cast<AudioContentView> (*i);
425 shared_ptr<Content> acv_content = acv->content();
429 ViewList::iterator j = _views.begin();
430 while (j != _views.end()) {
431 shared_ptr<AudioContentView> test = dynamic_pointer_cast<AudioContentView> (*j);
437 shared_ptr<Content> test_content = test->content();
439 if (test && test->track() == t) {
440 bool const no_overlap =
441 (acv_content->position() < test_content->position() && acv_content->end() < test_content->position()) ||
442 (acv_content->position() > test_content->end() && acv_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 ();
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 (selected_content (), ev.GetPosition ());
581 Timeline::set_position_from_event (wxMouseEvent& ev)
583 wxPoint const p = ev.GetPosition();
586 /* We haven't moved yet; in that case, we must move the mouse some reasonable distance
587 before the drag is considered to have started.
589 int const dist = sqrt (pow (p.x - _down_point.x, 2) + pow (p.y - _down_point.y, 2));
600 Time new_position = _down_view_position + (p.x - _down_point.x) / _pixels_per_time_unit;
605 Time nearest_distance = TIME_MAX;
606 Time nearest_new_position = TIME_MAX;
608 /* Find the nearest content edge; this is inefficient */
609 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
610 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
611 if (!cv || cv == _down_view) {
616 /* Snap starts to ends */
617 Time const d = abs (cv->content()->end() - new_position);
618 if (first || d < nearest_distance) {
619 nearest_distance = d;
620 nearest_new_position = cv->content()->end();
625 /* Snap ends to starts */
626 Time const d = abs (cv->content()->position() - (new_position + _down_view->content()->length_after_trim()));
627 if (d < nearest_distance) {
628 nearest_distance = d;
629 nearest_new_position = cv->content()->position() - _down_view->content()->length_after_trim ();
637 /* Snap if it's close; `close' means within a proportion of the time on the timeline */
638 if (nearest_distance < (width() / pixels_per_time_unit()) / 32) {
639 new_position = nearest_new_position;
644 if (new_position < 0) {
648 _down_view->content()->set_position (new_position);
650 shared_ptr<Film> film = _film.lock ();
652 film->set_sequence_video (false);
656 Timeline::force_redraw (dcpomatic::Rect<int> const & r)
658 RefreshRect (wxRect (r.x, r.y, r.width, r.height), false);
661 shared_ptr<const Film>
662 Timeline::film () const
664 return _film.lock ();
670 setup_pixels_per_time_unit ();
674 Timeline::clear_selection ()
676 for (ViewList::iterator i = _views.begin(); i != _views.end(); ++i) {
677 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
679 cv->set_selected (false);
684 Timeline::ContentViewList
685 Timeline::selected_views () const
689 for (ViewList::const_iterator i = _views.begin(); i != _views.end(); ++i) {
690 shared_ptr<ContentView> cv = dynamic_pointer_cast<ContentView> (*i);
691 if (cv && cv->selected()) {
700 Timeline::selected_content () const
703 ContentViewList views = selected_views ();
705 for (ContentViewList::const_iterator i = views.begin(); i != views.end(); ++i) {
706 sel.push_back ((*i)->content ());