231 lines
4.9 KiB
Plaintext
231 lines
4.9 KiB
Plaintext
//////////////////////////////////////////////////////
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//
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// SaherElm IT Center MQL5 Indicator
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// ---------------------------------------------
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// Name: XVLM
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// Description: Volume Trend Indicator ...
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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 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 XVLM Indicator"
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#property strict
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//
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// Imports ...
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#include <Math/Stat/Normal.mqh>
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//
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// Definitions ...
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//
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#define ShortName "XVLM"
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//
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// Inputs ...
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//
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input int length = 14; // Length
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//
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// Buffers ...
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//
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#property indicator_chart_window
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//
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#property indicator_buffers 2
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#property indicator_plots 0
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///
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#define volumeBufferIndex 0
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double volumeBuffer[];
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//
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#define volumeColorBufferIndex 1
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double volumeColorBuffer[];
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//
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#property indicator_label1 "XVLM"
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#property indicator_type1 DRAW_COLOR_HISTOGRAM
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#property indicator_color1 clrLime, clrRed
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//
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#define bullishColorIndex 0
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#define bearishColorIndex 1
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//
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// Variables ...
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//
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int maxLength;
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//
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double volumes[];
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double distances[];
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//
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// Event Handlers ...
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//
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// Initialization ...
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int OnInit()
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{
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//
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// Validate Inputs ...
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if (!ValidateInputs())
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{
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return INIT_PARAMETERS_INCORRECT;
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}
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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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maxLength = ExtractMaxLengthOfInputs();
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//
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ArrayResize(volumes, maxLength, 0);
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ArrayResize(distances, maxLength, 0);
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//
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// Define Index Buffers ...
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DefineBuffers();
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//
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// Set Indicator ShortName ...
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SetIndicatorName();
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//
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// Init Succeed ...
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return INIT_SUCCEEDED;
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}
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//
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// DeInitialization ...
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void OnDeinit(const int reason)
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{
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//
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// REASON_PROGRAM 0 The EA has stopped working calling the ExpertRemove() function
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// REASON_REMOVE 1 Program removed from a chart
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// REASON_RECOMPILE 2 Program recompiled
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// REASON_CHARTCHANGE 3 A symbol or a chart period is changed
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// REASON_CHARTCLOSE 4 Chart closed
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// REASON_PARAMETERS 5 Inputs changed by a user
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// REASON_ACCOUNT 6 Another account has been activated or reconnection to the trade server has occurred due to changes in the account settings
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// REASON_TEMPLATE 7 Another chart template applied
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// REASON_INITFAILED 8 The OnInit() handler returned a non-zero value
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// REASON_CLOSE 9 Terminal closed
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//
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// Here we can handle De Initialization Reasons ...
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}
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//
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// Calculating what we want ...
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int OnCalculate(
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const int rates_total, // Total Bars on Chart ...
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const int prev_calculated, // Total Calculated Bars on Charts ...
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const datetime &time[], // History of Open Time ...
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const double &open[], // History of Open Price ...
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const double &high[], // History of High Price ...
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const double &low[], // History of Low Price ...
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const double &close[], // History of Close Price ...
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const long &tick_volume[], // History of Tick Volumes on Bar ...
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const long &volume[], // History of Trade Volumes ...
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const int &spread[] // History of Spread Price ...
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)
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{
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//
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static int i = maxLength * 2;
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for (i; i < rates_total; i++)
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{
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//
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for (int x = 0; x < length; x++)
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{
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//
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volumes[x] = (double)tick_volume[i - x];
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distances[x] =
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(close[i - x] > open[i - x])
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? high[i - x] - low[i - x]
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: low[i - x] - high[i - x];
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}
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//
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double iValue = MathMean(volumes) * MathMean(distances);
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//
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volumeBuffer[i] = iValue;
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volumeColorBuffer[i] = iValue > 0
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? bullishColorIndex
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: bearishColorIndex;
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}
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//
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i = rates_total - 1;
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//
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return rates_total;
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}
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//
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// Custom Functions ...
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//
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// Validate Input Args for Initialization ...
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bool ValidateInputs()
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{
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//
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bool result = false;
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//
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// Validate Args ...
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result =
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//
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length >= 2
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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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// Retrieve all Exists Input Max Length ...
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// use for Start Of Drawing ...
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int ExtractMaxLengthOfInputs()
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{
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//
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int result = 0;
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//
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result = length;
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//
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return result;
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}
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//
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// Set Indicator Short Name and also we can define Buffers Labels ...
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void SetIndicatorName()
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{
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IndicatorSetString(INDICATOR_SHORTNAME, ShortName);
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}
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//
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// Define Indexes and Styles ...
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void DefineBuffers()
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{
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//
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SetIndexBuffer(volumeBufferIndex, volumeBuffer, INDICATOR_CALCULATIONS);
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SetIndexBuffer(volumeColorBufferIndex, volumeColorBuffer, INDICATOR_CALCULATIONS);
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} |