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xMQL4/xIndicators/x-saherelm.adx.mq4
2024-01-25 04:03:36 +03:30

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///////////////////////////////////////////////////////
//
// SaherElm IT Center ADX Oscillator
// ---------------------------------------------
// saherelm implementation of above oscillator ...
//
// Maintainer:
// ------------
// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
//
//////////////////////////////////////////////////////
//
// Global Properties ...
#property copyright "Copyright 2023, SaherElm IT Center"
#property link "https://saherelm.ir"
#property version "1.00"
#property description "SaherElm ADX Oscillator"
#property strict
//
// START Inputs ...
//
input int length = 7; // Averaging Length
input ENUM_APPLIED_PRICE appliedPrice = PRICE_WEIGHTED; // Averaging Applied Price
//
// END Inputs ...
//
//
// START Global Definitions: Variables, Properties and etc ...
//
//
#property indicator_separate_window
//
#property indicator_minimum 0
#property indicator_maximum 100
//
#property indicator_buffers 3
//
#property indicator_level1 0.0
#property indicator_level2 50.0
#property indicator_level3 70.0
#property indicator_level4 100.0
#property indicator_levelcolor clrSilver
#property indicator_levelstyle STYLE_DOT
//
// ADX ...
#property indicator_width1 1
#property indicator_color1 clrLightBlue
#property indicator_type1 DRAW_LINE
#property indicator_style1 STYLE_SOLID
//
// Positive Direction ...
#property indicator_width2 1
#property indicator_color2 clrLime
#property indicator_type2 DRAW_LINE
#property indicator_style2 STYLE_DOT
//
// Negative Direction ...
#property indicator_width3 1
#property indicator_color3 clrRed
#property indicator_type3 DRAW_LINE
#property indicator_style3 STYLE_DOT
//
// Declare Buffers ...
#define adxBufferIndex 0
#define positiveBufferIndex 1
#define negativeBufferIndex 2
double adxBuffer[];
double positiveBuffer[];
double negativeBuffer[];
//
// END Global Definitions: Variables, Properties and etc ...
//
//
// Start Event Handlers ...
//
//
// Initialization ...
int OnInit() {
//
// Initialize what we want ...
//
// Validating Input Parameters ...
if (length < 0) {
return INIT_PARAMETERS_INCORRECT;
}
//
IndicatorBuffers(3);
//
SetIndexBuffer(positiveBufferIndex, positiveBuffer);
SetIndexLabel(positiveBufferIndex, "DI+");
//
SetIndexBuffer(negativeBufferIndex, negativeBuffer);
SetIndexLabel(negativeBufferIndex, "DI-");
//
SetIndexBuffer(adxBufferIndex, adxBuffer);
SetIndexLabel(adxBufferIndex, "ADX");
//
// initialization done ...
return INIT_SUCCEEDED;
}
//
// Do Calculation ...
int OnCalculate(
const int rates_total,
const int prev_calculated,
const datetime &time[],
const double &open[],
const double &high[],
const double &low[],
const double &close[],
const long &tick_volume[],
const long &volume[],
const int &spread[]
) {
//
// this counts Available Bars ...
int limit;
//
// because in some cases we may have more than one input for
// calculation and we must prevent any calculation
// untill we pass the biggest input length, here we get max Input length
// and then wait until pass it ...
int maxLength = MathMax(0, length);
//
// input variable, we return 0 means nothing passed ...
if (rates_total < maxLength) {
return 0;
}
//
// found which candles calculated before ...
limit = (prev_calculated == 0) ? rates_total - maxLength - 1 : rates_total - prev_calculated + 1;
//
// this is the main loop of calculations, for each bar index ...
for (int i = limit - 1; i >= 0; i--) {
//
// Start Calculation here ...
// i is bar_index ...
//
// Calculate Long TP ...
CalculateBuffers(i);
}
//
return rates_total;
}
//
// END Event Handlers ...
//
//
// START Functions ...
//
void CalculateBuffers(
const int bar_index
) {
//
// Calculate Buffers ...
//
// Retrieves the current ADX value ...
double adx = iADX(
_Symbol,
_Period,
length,
appliedPrice,
MODE_MAIN,
bar_index
);
adxBuffer[bar_index] = adx;
//
// Retrieves the current DI+ value ...
double plusDi = iADX(
_Symbol,
_Period,
length,
appliedPrice,
MODE_PLUSDI,
bar_index
);
positiveBuffer[bar_index] = plusDi;
//
// Retrieves the current DI- value ...
double minusDi = iADX(
_Symbol,
_Period,
length,
appliedPrice,
MODE_MINUSDI,
bar_index
);
negativeBuffer[bar_index] = minusDi;
}
//
// END Functions ...
//