Merge master.

[dcpomatic.git] / src / wx / film_viewer.h

diff --git a/src/wx/film_viewer.h b/src/wx/film_viewer.h
index b5112c8bb2f9701fd3da1fc4c1e1e2ec559fa367..c81c65acd782d4deb26cb1e7c37c1c540e308955 100644 (file)
--- a/src/wx/film_viewer.h
+++ b/src/wx/film_viewer.h
@@ -24,26 +24,82 @@
 #include <wx/wx.h>
 #include "lib/film.h"
 
-class ThumbPanel;
+class wxToggleButton;
+class FFmpegPlayer;
+class Image;
+class RGBPlusAlphaImage;
+class Subtitle;
 
 /** @class FilmViewer
- *  @brief A wx widget to view `thumbnails' of a Film.
+ *  @brief A wx widget to view a preview of a Film.
+ *
+ *  The film takes the following path through the viewer:
+ *
+ *  1.  get_frame() asks our _player to decode some data.  If it does, process_video()
+ *      will be called.
+ *
+ *  2.  process_video() takes the image and subtitle from the decoder (_raw_frame and _raw_sub)
+ *      and calls raw_to_display().
+ * 
+ *  3.  raw_to_display() copies _raw_frame to _display_frame, processing it and scaling it.
+ *
+ *  4.  calling _panel->Refresh() and _panel->Update() results in paint_panel() being called;
+ *      this creates frame_bitmap from _display_frame and blits it to the display.  It also
+ *      blits the subtitle, if required.
+ *
+ * update_from_decoder() asks the player to re-emit its current frame on the next pass(), and then
+ * starts from step #1.
+ *
+ * update_from_raw() starts at step #3, then calls _panel->Refresh and _panel->Update.
  */
 class FilmViewer : public wxPanel
 {
 public:
-       FilmViewer (Film *, wxWindow *);
+       FilmViewer (boost::shared_ptr<Film>, wxWindow *);
 
-       void set_film (Film *);
-       void setup_visibility ();
+       void set_film (boost::shared_ptr<Film>);
 
 private:
-       void slider_changed (wxCommandEvent &);
-       void set_thumbnail (int);
-       void film_changed (FilmState::Property);
+       void film_changed (Film::Property);
+       void film_content_changed (boost::weak_ptr<Content>, int);
+       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<Image>, bool, boost::shared_ptr<Subtitle>);
+       void calculate_sizes ();
+       void check_play_state ();
+       void update_from_raw ();
+       void update_from_decoder ();
+       void raw_to_display ();
+       void get_frame ();
+       void active_jobs_changed (bool);
+
+       boost::shared_ptr<Film> _film;
+       boost::shared_ptr<Player> _player;
 
-       Film* _film;
-       wxBoxSizer* _sizer;
-       ThumbPanel* _thumb_panel;
+       wxSizer* _v_sizer;
+       wxPanel* _panel;
        wxSlider* _slider;
+       wxToggleButton* _play_button;
+       wxTimer _timer;
+
+       boost::shared_ptr<Image> _raw_frame;
+       boost::shared_ptr<Subtitle> _raw_sub;
+       boost::shared_ptr<Image> _display_frame;
+       /* The x offset at which we display the actual film content; this corresponds
+          to the film's padding converted to our coordinates.
+       */
+       int _display_frame_x;
+       boost::shared_ptr<RGBPlusAlphaImage> _display_sub;
+       Position _display_sub_position;
+       bool _got_frame;
+
+       /** Size of our output (including padding if we have any) */
+       libdcp::Size _out_size;
+       /** Size that we will make our film (equal to _out_size unless we have padding) */
+       libdcp::Size _film_size;
+       /** Size of the panel that we have available */
+       libdcp::Size _panel_size;
 };