249 lines
5.7 KiB
Plaintext
249 lines
5.7 KiB
Plaintext
/////////////////////////////////////////////////////////////////
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//
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// SaherElm IT Center XMMA Signalling Indicator
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// -------------------------------------------------------------
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// this indicator provides signals for XMMA Based Strategy ...
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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 copyright "Copyright 2023, SaherElm IT Center"
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#property link "https://saherelm.ir"
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#property version "1.00"
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#property description "SaherElm XMMA Signalling Indicator"
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#property strict
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//
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// START Inputs ...
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//
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//
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// Signal Show/Hide ...
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input bool showSignals = true; // Show Signals
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input bool showLongSignals = true; // Show Long Signals
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input bool showShortSignals = true; // Show Short Signals
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//
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// Signal Prefixe ...
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input string signalPrefix = "XS_SG_OSC"; // Signal Prefix
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input double signalArrowPositionThresholdFactor = 100; // Signal Arrow Dist of Price
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//
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// Signal Colors ...
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input string bullishSignalLabel = "X_BUY"; // Bullish Signal Label
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input color bullishSignalColor = clrAqua; // Bullish Signal Color
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//
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input string bearishSignalLabel = "X_SELL"; // Bearish Signal Label
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input color bearishSignalColor = clrFuchsia; // Bearish Signal Color
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//
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// here we specify alerting signals ...
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input bool alertSignals = false; // Alert Signals
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input bool pushNotificationSignals = false; // Push Notification Alert Signals
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//
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// Indicator Inputs ...
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input int marketLength = 7; // Market Length
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input int fastShift = 1; // Fast Shift
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input int slowShift = 3; // Slow Shift
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//
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// END Inputs ...
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//
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//
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// START Global Definitions: Variables, Properties and etc ...
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//
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//
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#property indicator_chart_window
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//
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// Includes our shared library ...
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#include "../Libraries/x-saherelm.lib.mq4"
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//
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// Includes our shared library ...
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#include "../Libraries/x-saherelm.xmma.signal.lib.mq4"
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//
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// Last Signalled Bar ...
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int lastSignalledBar = 0;
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//
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// here we specify logging enabled or not ...
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bool enableLogging = true;
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//
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// this is a Tag which attached to our Logger ...
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string logTag = "XS_SG_OSC";
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//
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// END Global Definitions: Variables, Properties and etc ...
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//
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//
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// Start Event Handlers ...
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//
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//
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// Initialization ...
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int OnInit() {
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//
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// Initialize what we want ...
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//
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// Validating Input Parameters ...
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if (
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fastShift < 0 ||
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slowShift < 0 ||
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marketLength <= 0 ||
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slowShift < fastShift
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) {
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return INIT_PARAMETERS_INCORRECT;
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}
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//
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return INIT_SUCCEEDED;
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}
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//
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// Do Calculation ...
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int OnCalculate(
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const int rates_total,
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const int prev_calculated,
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const datetime &time[],
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const double &open[],
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const double &high[],
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const double &low[],
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const double &close[],
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const long &tick_volume[],
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const long &volume[],
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const int &spread[]
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) {
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//
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// this counts Available Bars ...
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int limit;
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//
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// because in some cases we may have more than one input for
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// calculation and we must prevent any calculation
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// untill we pass the biggest input length, here we get max Input length
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// and then wait until pass it ...
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int maxLength = MathMax(0, marketLength);
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//
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// input variable, we return 0 means nothing passed ...
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if (rates_total < maxLength) {
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return 0;
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}
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//
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// found which candles calculated before ...
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limit = (prev_calculated == 0) ? rates_total - maxLength - 1 : rates_total - prev_calculated + 1;
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//
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// this is the main loop of calculations, for each bar index ...
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for (int i = limit - 1; i >= 0; i--) {
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//
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// Start Calculation here ...
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// i is bar_index ...
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//
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CalculateSignals(i);
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}
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//
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return rates_total;
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}
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//
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// De Initialization ...
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void OnDeinit(const int reason) {
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//
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RemoveDraws(signalPrefix);
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}
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//
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// END Event Handlers ...
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//
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//
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// START Functions ...
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//
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//
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// Here we are Calculate Signals based on Oscillators and fill up
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// related buffers ...
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void CalculateSignals(const int &bar_index) {
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//
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// Retrieve Signal Exists ...
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XSignalRequest request = CalculateSignal(
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bar_index,
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marketLength,
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fastShift,
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slowShift
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);
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//
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if (!request.hasSignal) {
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return;
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}
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//
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// Prevent Multiple Alerting at same Candle ...
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if (lastSignalledBar == bar_index) {
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return;
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}
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//
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lastSignalledBar = bar_index;
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//
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bool hasLongSignal = request.type == X_LONG;
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bool hasShortSignal = request.type == X_SHORT;
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//
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// Signal Tag ...
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string signalTAG = GenerateSignalTAG(
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request.signal,
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signalPrefix,
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bullishSignalLabel,
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bearishSignalLabel
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);
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//
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// Handle Alerts ...
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if (alertSignals && bar_index == 0) {
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//
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// General Alert ...
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Alert(signalTAG);
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//
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// Push Notifications ...
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if (pushNotificationSignals) {
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SendNotification(signalTAG);
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}
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}
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//
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// Handle Can Show Signals ...
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bool canShowSignals = showSignals &&
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(hasLongSignal ? showLongSignals : hasShortSignal ? showShortSignals : false);
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if (canShowSignals) {
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//
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// Here i must to Draw Signal Shapes ...
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DrawSignal(
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request.signal,
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0,
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0,
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signalArrowPositionThresholdFactor,
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signalPrefix, // Signal Tag ...
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bullishSignalLabel, // Long Signal Label ...
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bullishSignalColor,
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bearishSignalLabel, // Short Signal Label ...
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bearishSignalColor
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);
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}
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}
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//
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// END Functions ...
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// |