Merge remote-tracking branch 'refs/remotes/tvdzwan/master'

# Conflicts:
#	include/hyperion/Hyperion.h
#	libsrc/hyperion/CMakeLists.txt
#	libsrc/hyperion/Hyperion.cpp


Former-commit-id: 1144520581d4531952038d2118cb11e01bebc10e

libsrc/leddevice/LedDeviceFadeCandy.h

@@ -0,0 +1,71 @@
+#pragma once
+
+// STL/Qt includes
+#include <fstream>
+#include <QObject>
+#include <QTcpSocket>
+
+// Leddevice includes
+#include <leddevice/LedDevice.h>
+
+///
+/// Implementation of the LedDevice interface for sending to
+/// fadecandy/opc-server via network by using the 'open pixel control' protocol.
+///
+class LedDeviceFadeCandy : public QObject, public LedDevice
+{
+	Q_OBJECT
+
+public:
+	///
+	/// Constructs the LedDevice for fadecandy/opc server
+	///
+	/// @param host The ip address/host name of fadecandy/opc server
+	/// @param port The port to use (fadecandy default is 7890)
+	///
+	LedDeviceFadeCandy(const std::string& host, const uint16_t port, const unsigned channel);
+
+	///
+	/// Destructor of the LedDevice; closes the tcp client
+	///
+	virtual ~LedDeviceFadeCandy();
+
+	///
+	/// Writes the led color values to the led-device
+	///
+	/// @param ledValues The color-value per led
+	/// @return Zero on succes else negative
+	///
+	virtual int write(const std::vector<ColorRgb> & ledValues);
+
+	/// Switch the leds off
+	virtual int switchOff();
+
+
+private:
+	QTcpSocket        _client;
+	const std::string _host;
+	const uint16_t    _port;
+	const unsigned    _channel;
+	QByteArray        _opc_data;
+
+	/// try to establish connection to opc server, if not connected yet
+	///
+	/// @return true if connection is established
+	///
+	bool tryConnect();
+
+	/// return the conenction state
+	///
+	/// @return True if connection established
+	///
+	bool isConnected();
+
+
+	/// transfer current opc_data buffer to opc server
+	///
+	/// @return amount of transfered bytes. -1 error while transfering, -2 error while connecting
+	///
+	int transferData();
+	
+};