static int const SUBTITLE_USE;
};
+/** @class SubtitleContent
+ * @brief Parent for content which has the potential to include subtitles.
+ *
+ * Although inheriting from this class indicates that the content could
+ * have subtitles, it may not. ::has_subtitles() will tell you.
+ */
class SubtitleContent : public virtual Content
{
public:
void as_xml (xmlpp::Node *) const;
std::string identifier () const;
+ virtual bool has_subtitles () const = 0;
+
void set_subtitle_use (bool);
void set_subtitle_x_offset (double);
void set_subtitle_y_offset (double);