Added skeleton for effect engine development

Former-commit-id: e1fb69fd4de4b8968075660e3ba7f7add021c152

include/hyperion/Hyperion.h

@@ -18,6 +18,7 @@
 // Forward class declaration
 class HsvTransform;
 class ColorTransform;
+class EffectEngine;
 
 ///
 /// The main class of Hyperion. This gives other 'users' access to the attached LedDevice through
@@ -141,6 +142,17 @@ public:
 	///
 	const InputInfo& getPriorityInfo(const int priority) const;
 
+	/// Get the list of available effects
+	/// @return The list of available effects
+	std::list<std::string> getEffects() const;
+
+	/// Run the specified effect on the given priority channel and optionally specify a timeout
+	/// @param effectName Name of the effec to run
+	///	@param priority The priority channel of the effect
+	/// @param timout The timeout of the effect (after the timout, the effect will be cleared)
+	int setEffect(const std::string & effectName, int priority, int timeout = -1);
+
+public:
 	static LedDevice * createDevice(const Json::Value & deviceConfig);
 	static ColorOrder createColorOrder(const Json::Value & deviceConfig);
 	static LedString createLedString(const Json::Value & ledsConfig);
@@ -148,6 +160,15 @@ public:
 	static ColorTransform * createColorTransform(const Json::Value & colorConfig);
 	static LedDevice * createColorSmoothing(const Json::Value & smoothingConfig, LedDevice * ledDevice);
 
+signals:
+	/// Signal which is emitted when a priority channel is actively cleared
+	/// This signal will not be emitted when a priority channel time out
+	void channelCleared(int priority);
+
+	/// Signal which is emitted when all priority channels are actively cleared
+	/// This signal will not be emitted when a priority channel time out
+	void allChannelsCleared();
+
 private slots:
 	///
 	/// Updates the priority muxer with the current time and (re)writes the led color with applied
@@ -185,6 +206,9 @@ private:
 	/// The actual LedDevice
 	LedDevice * _device;
 
+	/// Effect engine
+	EffectEngine * _effectEngine;
+
 	/// The timer for handling priority channel timeouts
 	QTimer _timer;
 };