Support Events for Grabbers generically

include/hyperion/Grabber.h

@@ -11,6 +11,8 @@
 #include <utils/Logger.h>
 #include <utils/Components.h>
 
+#include <events/Event.h>
+
 ///
 /// @brief The Grabber class is responsible to apply image resizes (with or without ImageResampler)
 
@@ -111,6 +113,10 @@ public:
 
 	QString getGrabberName() const { return _grabberName; }
 
+public slots:
+
+	virtual void handleEvent(Event event) {}
+
 protected slots:
 	///
 	/// @brief Set device in error state

include/hyperion/GrabberWrapper.h

@@ -18,6 +18,8 @@
 
 #include <grabber/GrabberType.h>
 
+#include <events/Event.h>
+
 class Grabber;
 class GlobalSignals;
 class QTimer;
@@ -139,6 +141,8 @@ public slots:
 	///
 	virtual void handleSettingsUpdate(settings::type type, const QJsonDocument& config);
 
+	void handleEvent(Event event);
+
 signals:
 	///
 	/// @brief Emit the final processed image