Initial Commit ...

2024-01-25 04:09:42 +03:30
commit b2037e07eb
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+/////////////////////////////////////////////////////////////////////////////
+//
+// SaherElm IT Center MQL5 XAMA Indicator Helper for Signal Providers
+// --------------------------------------------------------------------------
+//
+// Maintainer:
+// ------------
+// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
+//
+/////////////////////////////////////////////////////////////////////////////
+//
+// Global Properties ...
+#property library
+#property copyright "Copyright 2023, SaherElm IT Center"
+#property link "https://www.saherelm.ir"
+#property version "1.00"
+#property strict
+
+//
+// Includes ...
+#include "..\Libraries\x-saherelm.log.lib.mq5"
+#include "..\Libraries\x-saherelm.common.lib.mq5"
+
+//
+// START Enum Definitions ...
+//
+
+//
+// END Enum Definitions ...
+//
+
+//
+// START Inputs ...
+//
+
+input group "XAMA Indicator";
+
+//
+input int xAMALength = 18;                            // Market Length
+input int xAMAFastEMA = 2;                            // Fast EMA Period
+input int xAMASlowEMA = 30;                           // Slow EMA Period
+input int xAMAShift = 0;                              // Shift
+input ENUM_APPLIED_PRICE xAMAAppliedTo = PRICE_CLOSE; // Applied To
+
+//
+// END Inputs ...
+//
+
+//
+// START Definitions ...
+//
+
+int xAMAHandler = INVALID_HANDLE;
+double xAMABuffer[];
+
+//
+// END Definitions ...
+//
+
+//
+// START Handler Functions ...
+//
+
+//
+// Validate Inputs ...
+bool XAMAValidateInputs()
+{
+    //
+    bool result = false;
+
+    //
+    result =
+        xAMALength > 2 &&
+        xAMAFastEMA < xAMALength &&
+        xAMAFastEMA < xAMASlowEMA &&
+        xAMAShift >= 0;
+
+    //
+    if (!result)
+    {
+        //
+        LogMessage("XAMA Indicator Inputs Validation Failed ...");
+    }
+
+    //
+    return result;
+}
+
+//
+// Init Indicators ...
+bool XAMAInitHandlers()
+{
+    //
+    bool result = false;
+
+    //
+    // Initialize Indicator/Indicator Handlers ...
+    ResetLastError();
+
+    //
+    // XAMA Handler ...
+    ArraySetAsSeries(xAMABuffer, true);
+    xAMAHandler = iCustom(
+        _Symbol,
+        _Period,
+        "x-saherelm.xama.indicator",
+        //
+        // Inputs ...
+        xAMALength,
+        xAMAFastEMA,
+        xAMASlowEMA,
+        xAMAShift,
+        xAMAAppliedTo
+        //
+    );
+    if (xAMAHandler == INVALID_HANDLE)
+    {
+        //
+        LogMessage("failed to Initialize XAMA Indicator: " + (string)GetLastError());
+        return result;
+    }
+
+    //
+    result = true;
+
+    //
+    return result;
+}
+
+//
+// Release Indicators ...
+void XAMAReleaseHandlers()
+{
+    IndicatorRelease(xAMAHandler);
+}
+
+//
+// Handle Reading Buffers ...
+void XAMAReadBuffers(
+    int xAMAItemsPerTick // Number Of Reading Buffer Items Per Tick
+)
+{
+    //
+    // XAMA Signal ...
+    CopyBuffer(
+        xAMAHandler,
+        0,
+        0,
+        xAMAItemsPerTick,
+        xAMABuffer);
+}
+
+//
+// END Handler Funcions ...
+//
+
+//
+// START XAMA Custom Functions ...
+//
+
+//
+// Check SC is Peak ...
+bool XAMAIsPeak(
+    int bar_index,  // Specified Index ...
+    int length = 10 // Specified Length ...
+)
+{
+    //
+    bool result = false;
+
+    //
+    if (
+        length <= 0 ||
+        bar_index <= 0 ||
+        !XAMAIsValidBuffersSize(bar_index + length + 1))
+    {
+        return result;
+    }
+
+    //
+    // Must Decreasing ...
+    bool isIncreasing = IsIncreasing(
+        bar_index + length,
+        bar_index,
+        xAMABuffer
+        //
+    );
+
+    //
+    return result;
+}
+
+//
+// Check SC is Vale ...
+bool XAMAIsVale(
+    int bar_index,  // Specified Index ...
+    int length = 10 // Specified Length ...
+)
+{
+    //
+    bool result = false;
+
+    //
+    if (
+        length <= 0 ||
+        bar_index <= 0 ||
+        !XAMAIsValidBuffersSize(bar_index + length + 1))
+    {
+        return result;
+    }
+
+    //
+    result = IsDecreasing(
+        bar_index + length,
+        bar_index,
+        xAMABuffer
+        //
+    );
+
+    //
+    return result;
+}
+
+//
+// Check all Buffers has valid Size ...
+bool XAMAIsValidBuffersSize(
+    int size // the size of buffers which min size for requirements
+)
+{
+    //
+    bool result = false;
+
+    //
+    if (
+        size <= 0 ||
+        //
+        ArraySize(xAMABuffer) < size
+        //
+    )
+    {
+        result = false;
+    }
+    else
+    {
+        result = true;
+    }
+
+    //
+    return result;
+}
+
+//
+// END XAMA Custom Functions ...
+//