#include <wx/wx.h>
#include "lib/film.h"
+class wxToggleButton;
class FFmpegPlayer;
+class Image;
+class RGBPlusAlphaImage;
/** @class FilmViewer
* @brief A wx widget to view a preview of a Film.
+ *
+ * The film takes the following path through the viewer:
+ *
+ * 1. fetch_next_frame() asks our _player to decode some data. If it does, process_video()
+ * will be called.
+ *
+ * 2. process_video() takes the image from the player (_frame).
+ *
+ * 3. fetch_next_frame() calls _panel->Refresh() and _panel->Update() which results in
+ * paint_panel() being called; this creates frame_bitmap from _frame and blits it to the display.
+ *
+ * fetch_current_frame_again() asks the player to re-emit its current frame on the next pass(), and then
+ * starts from step #1.
*/
class FilmViewer : public wxPanel
{
void set_film (boost::shared_ptr<Film>);
private:
- void film_changed (Film::Property);
+ void paint_panel (wxPaintEvent &);
+ void panel_sized (wxSizeEvent &);
+ void slider_moved (wxScrollEvent &);
+ void play_clicked (wxCommandEvent &);
+ void timer (wxTimerEvent &);
+ void process_video (boost::shared_ptr<const Image>, Time);
+ void calculate_sizes ();
+ void check_play_state ();
+ void fetch_current_frame_again ();
+ void fetch_next_frame ();
+ void active_jobs_changed (bool);
+ void back_clicked (wxCommandEvent &);
+ void forward_clicked (wxCommandEvent &);
+ void player_changed (bool);
+ void set_position_text (Time);
boost::shared_ptr<Film> _film;
- FFmpegPlayer* _player;
+ boost::shared_ptr<Player> _player;
+
+ wxSizer* _v_sizer;
+ wxPanel* _panel;
+ wxSlider* _slider;
+ wxButton* _back_button;
+ wxButton* _forward_button;
+ wxStaticText* _frame_number;
+ wxStaticText* _timecode;
+ wxToggleButton* _play_button;
+ wxTimer _timer;
+
+ boost::shared_ptr<const Image> _frame;
+ bool _got_frame;
+
+ /** Size of our output (including padding if we have any) */
+ libdcp::Size _out_size;
+ /** Size of the panel that we have available */
+ libdcp::Size _panel_size;
+
+ std::list<std::pair<boost::shared_ptr<const Image>, Time> > _queue;
};