Add GDea files

Include/Nkanven/Frameworks/GDea/IndicatorBase.mqh

@@ -0,0 +1,59 @@
+/*
+ 	IndicatorBase.mqh
+ 	
+   Copyright 2013-2020, Orchard Forex
+   https://www.orchardforex.com
+ 
+*/
+ 
+#include	"CommonBase.mqh"
+
+class CIndicatorBase : public CCommonBase {
+
+private:
+
+protected:	// member variables
+
+	//	Only used for MQL5
+	int						mIndicatorHandle;
+
+public:	// constructors
+
+	CIndicatorBase()			:	CCommonBase()
+									{	Init();	}
+	CIndicatorBase(string symbol, ENUM_TIMEFRAMES timeframe)
+									:	CCommonBase(symbol, timeframe)
+									{	Init();	}
+	~CIndicatorBase();
+	
+	int			Init();
+
+public:
+
+   virtual double    GetData(const int index) 							{ return(GetData(0,index)); }
+   virtual double    GetData(const int bufferNum, const int index){ return (0); }
+
+};
+
+CIndicatorBase::~CIndicatorBase() {
+
+#ifdef __MQL5__
+
+	if (mIndicatorHandle!=INVALID_HANDLE) IndicatorRelease(mIndicatorHandle);
+	
+#endif
+
+}
+
+int		CIndicatorBase::Init() {
+
+	if (InitResult()!=INIT_SUCCEEDED)	return(InitResult());
+	
+	mIndicatorHandle	=	INVALID_HANDLE;
+	
+	return(INIT_SUCCEEDED);
+	
+}
+
+
+