X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fcontent.h;h=7c02ee0e39effc323216cfc28d29da07ea63d236;hb=fcba100f0dfd1d4214291abb76f22ebd696c24d4;hp=567cd5c1f78c68901ef13cdbfcf6ff49ed81fc34;hpb=e0a70cd5cfb11fc2de167f3146acdd437a6faa82;p=dcpomatic.git

diff --git a/src/lib/content.h b/src/lib/content.h
index 567cd5c1f..7c02ee0e3 100644
--- a/src/lib/content.h
+++ b/src/lib/content.h
@@ -27,10 +27,11 @@
 #ifndef DCPOMATIC_CONTENT_H
 #define DCPOMATIC_CONTENT_H
 
-#include "types.h"
-#include "signaller.h"
-#include "dcpomatic_time.h"
+
 #include "change_signaller.h"
+#include "dcpomatic_time.h"
+#include "signaller.h"
+#include "types.h"
 #include "user_property.h"
 #include <libcxml/cxml.h>
 #include <boost/filesystem.hpp>
@@ -191,7 +192,11 @@ public:
 
 	std::string calculate_digest () const;
 
-	/* CHANGE_TYPE_PENDING and CHANGE_TYPE_CANCELLED may be emitted from any thread; CHANGE_TYPE_DONE always from GUI thread */
+	virtual bool can_be_played () const {
+		return true;
+	}
+
+	/* ChangeType::PENDING and ChangeType::CANCELLED may be emitted from any thread; ChangeType::DONE always from GUI thread */
 	boost::signals2::signal<void (ChangeType, std::weak_ptr<Content>, int, bool)> Change;
 
 	std::shared_ptr<VideoContent> video;
@@ -202,6 +207,9 @@ public:
 	std::shared_ptr<TextContent> only_text () const;
 	std::shared_ptr<TextContent> text_of_original_type (TextType type) const;
 
+	/** @return true if this content has changed since it was last examined */
+	bool changed () const;
+
 protected:
 
 	virtual void add_properties (std::shared_ptr<const Film> film, std::list<UserProperty> &) const;