leddevice refactoring. code style and extension of baseclass to avoid dups (#174)

include/leddevice/LedDevice.h

@@ -3,6 +3,8 @@
 // STL incldues
 #include <vector>
 
+#include <QObject>
+
 // Utility includes
 #include <utils/ColorRgb.h>
 #include <utils/ColorRgbw.h>
@@ -12,8 +14,10 @@
 ///
 /// Interface (pure virtual base class) for LedDevices.
 ///
-class LedDevice
+class LedDevice : public QObject
 {
+	Q_OBJECT
+
 public:
 	LedDevice();
 	///
@@ -41,5 +45,12 @@ public:
 	virtual int open();
 
 protected:
+	/// The common Logger instance for all LedDevices
 	Logger * _log;
+	
+	int _ledCount;
+
+	/// The buffer containing the packed RGB values
+	std::vector<uint8_t> _ledBuffer;
+
 };