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