X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fui_signaller.h;h=7e0f575135fc893681cc08e3b481847d112c3824;hb=47fdbbdb51fd7fd3e0e8818422f11f9df4d4fa73;hp=428ab698f1d3028f05c42705bb1ad76787120ba1;hpb=28dbf4fd074d2046a3c8ddebac9a537a80fd457a;p=dcpomatic.git

diff --git a/src/lib/ui_signaller.h b/src/lib/ui_signaller.h
index 428ab698f..7e0f57513 100644
--- a/src/lib/ui_signaller.h
+++ b/src/lib/ui_signaller.h
@@ -27,7 +27,7 @@
 /** A class to allow signals to be emitted from non-UI threads and handled
  *  by a UI thread.
  */
-class UISignaller
+class UISignaller : public boost::noncopyable
 {
 public:
 	/** Create a UISignaller.  Must be called from the UI thread */
@@ -60,7 +60,10 @@ public:
 	}
 
 	/** This should wake the UI and make it call ui_idle() */
-	virtual void wake_ui () = 0;
+	virtual void wake_ui () {
+		/* This is only a sensible implementation when there is no GUI... */
+		ui_idle ();
+	}
 
 private:
 	/** A io_service which is used as the conduit for messages */