Leddevices source tree refactoring (#461)

* rework structure of leddevice source tree

* fix data type vor v4l sig detection value in webui

* automate leddevicefactory.cpp

libsrc/leddevice/dev_net/LedDeviceFadeCandy.h

@@ -0,0 +1,114 @@
+#pragma once
+
+// STL/Qt includes
+#include <QTcpSocket>
+#include <QString>
+
+// 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 LedDevice
+{
+	Q_OBJECT
+
+public:
+	///
+	/// Constructs the LedDevice for fadecandy/opc server
+	///
+	/// following code shows all config options
+	/// @code
+	/// "device" :
+	/// {
+	/// 	"name"          : "MyPi",
+	/// 	"type"          : "fadecandy",
+	/// 	"output"        : "localhost",
+	/// 	"colorOrder"    : "rgb",
+	/// 	"setFcConfig"   : false,
+	/// 	"gamma"         : 1.0,
+	/// 	"whitepoint"    : [1.0, 1.0, 1.0],
+	/// 	"dither"        : false,
+	/// 	"interpolation" : false,
+	/// 	"manualLed"     : false,
+	/// 	"ledOn"         : false
+	/// }, 
+	///@endcode
+	///
+	/// @param deviceConfig json config for fadecandy
+	///
+	LedDeviceFadeCandy(const QJsonObject &deviceConfig);
+
+	///
+	/// Destructor of the LedDevice; closes the tcp client
+	///
+	virtual ~LedDeviceFadeCandy();
+
+	/// constructs leddevice
+	static LedDevice* construct(const QJsonObject &deviceConfig);
+
+	///
+	/// Sets configuration
+	///
+	/// @param deviceConfig the json device config
+	/// @return true if success
+	bool init(const QJsonObject &deviceConfig);
+
+	///
+	/// 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);
+
+private:
+	QTcpSocket  _client;
+	QString _host;
+	uint16_t    _port;
+	unsigned    _channel;
+	QByteArray  _opc_data;
+
+	// fadecandy sysEx
+	bool        _setFcConfig;
+	double      _gamma;
+	double      _whitePoint_r;
+	double      _whitePoint_g;
+	double      _whitePoint_b;
+	bool        _noDither;
+	bool        _noInterp;
+	bool        _manualLED;
+	bool        _ledOnOff;
+
+	/// 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();
+	
+	/// send system exclusive commands
+	///
+	/// @param systemId fadecandy device identifier (for standard fadecandy always: 1)
+	/// @param commandId id of command
+	/// @param msg the sysEx message
+	/// @return amount bytes written, -1 if fail
+	int sendSysEx(uint8_t systemId, uint8_t commandId, QByteArray msg);
+
+	/// sends the configuration to fcserver
+	void sendFadeCandyConfiguration();
+
+};