2 Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/film_viewer.h
22 * @brief A wx widget to view `thumbnails' of a Film.
26 #include "lib/config.h"
33 class RGBPlusAlphaImage;
39 * @brief A wx widget to view a preview of a Film.
41 class FilmViewer : public wxPanel
44 FilmViewer (wxWindow *, bool outline_content = true, bool jump_to_selected = true);
47 void set_film (boost::shared_ptr<Film>);
48 boost::shared_ptr<Film> film () const {
52 /** @return our `playhead' position; this may not lie exactly on a frame boundary */
53 DCPTime position () const {
54 return _video_position;
57 void set_position (DCPTime p);
58 void set_coalesce_player_changes (bool c);
62 int audio_callback (void* out, unsigned int frames);
64 boost::signals2::signal<void (boost::weak_ptr<PlayerVideo>)> ImageChanged;
68 void panel_sized (wxSizeEvent &);
69 void slider_moved (bool update_slider);
72 void calculate_sizes ();
73 void check_play_state ();
74 void active_jobs_changed (boost::optional<std::string>);
75 void back_clicked (wxMouseEvent &);
76 void forward_clicked (wxMouseEvent &);
77 void player_changed (bool);
78 void update_position_label ();
79 void update_position_slider ();
81 void seek (DCPTime t, bool accurate);
82 void refresh_panel ();
83 void setup_sensitivity ();
84 void film_changed (Film::Property);
85 DCPTime nudge_amount (wxMouseEvent &);
86 void timecode_clicked ();
87 void frame_number_clicked ();
88 void go_to (DCPTime t);
89 void jump_to_selected_clicked ();
90 void recreate_butler ();
91 void config_changed (Config::Property);
92 DCPTime time () const;
95 Frame average_latency () const;
97 boost::shared_ptr<Film> _film;
98 boost::shared_ptr<Player> _player;
101 /** The area that we put our image in */
103 wxCheckBox* _outline_content;
104 wxRadioButton* _left_eye;
105 wxRadioButton* _right_eye;
106 wxCheckBox* _jump_to_selected;
108 wxButton* _back_button;
109 wxButton* _forward_button;
110 wxStaticText* _frame_number;
111 wxStaticText* _timecode;
112 wxToggleButton* _play_button;
114 bool _coalesce_player_changes;
115 bool _pending_player_change;
117 boost::shared_ptr<const Image> _frame;
118 DCPTime _video_position;
119 Position<int> _inter_position;
120 dcp::Size _inter_size;
122 /** Size of our output (including padding if we have any) */
124 /** Size of the panel that we have available */
125 dcp::Size _panel_size;
126 /** true if the last call to Player::seek() was specified to be accurate;
127 * this is used so that when re-fetching the current frame we
128 * can get the same one that we got last time.
130 bool _last_seek_accurate;
134 unsigned int _audio_block_size;
136 boost::shared_ptr<Butler> _butler;
138 std::list<Frame> _latency_history;
139 /** Mutex to protect _latency_history */
140 mutable boost::mutex _latency_history_mutex;
141 int _latency_history_count;
143 boost::signals2::scoped_connection _config_changed_connection;