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add MQL5Test Workspace Content as BKP Solution ...

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saherelm
2024-04-22 07:42:50 +03:30
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//+------------------------------------------------------------------+
//| Demo_iIchimoku.mq5 |
//| Copyright 2011, MetaQuotes Software Corp. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2000-2024, MetaQuotes Ltd."
#property link "https://www.mql5.com"
#property version "1.00"
#property description "The indicator demonstrates how to obtain data"
#property description "of indicator buffers for the iIchimoku technical indicator."
#property description "A symbol and timeframe used for calculation of the indicator,"
#property description "are set by the symbol and period parameters."
#property description "The method of creation of the handle is set through the 'type' parameter (function type)."
#property description "All other parameters just like in the standard Ichimoku Kinko Hyo."
#property indicator_chart_window
#property indicator_buffers 5
#property indicator_plots 4
//--- the Tenkan_sen plot
#property indicator_label1 "Tenkan_sen"
#property indicator_type1 DRAW_LINE
#property indicator_color1 clrRed
#property indicator_style1 STYLE_SOLID
#property indicator_width1 1
//--- the Kijun_sen plot
#property indicator_label2 "Kijun_sen"
#property indicator_type2 DRAW_LINE
#property indicator_color2 clrBlue
#property indicator_style2 STYLE_SOLID
#property indicator_width2 1
//--- the Senkou_Span plot
#property indicator_label3 "Senkou Span A;Senkou Span B" // two fields will be shown in Data Window
#property indicator_type3 DRAW_FILLING
#property indicator_color3 clrSandyBrown, clrThistle
#property indicator_style3 STYLE_SOLID
#property indicator_width3 1
//--- the Chikou_Span plot
#property indicator_label4 "Chinkou_Span"
#property indicator_type4 DRAW_LINE
#property indicator_color4 clrLime
#property indicator_style4 STYLE_SOLID
#property indicator_width4 1
//+------------------------------------------------------------------+
//| Enumeration of the methods of handle creation |
//+------------------------------------------------------------------+
enum Creation
{
Call_iIchimoku, // use iIchimoku
Call_IndicatorCreate // use IndicatorCreate
};
//--- input parameters
input Creation type=Call_iIchimoku; // type of the function
input int tenkan_sen=9; // period of Tenkan-sen
input int kijun_sen=26; // period of Kijun-sen
input int senkou_span_b=52; // period of Senkou Span B
input string symbol=" "; // symbol
input ENUM_TIMEFRAMES period=PERIOD_CURRENT; // timeframe
//--- indicator buffer
double Tenkan_sen_Buffer[];
double Kijun_sen_Buffer[];
double Senkou_Span_A_Buffer[];
double Senkou_Span_B_Buffer[];
double Chinkou_Span_Buffer[];
//--- variable for storing the handle of the iIchimoku indicator
int handle;
//--- variable for storing
string name=symbol;
//--- name of the indicator on a chart
string short_name;
//--- we will keep the number of values in the Ichimoku Kinko Hyo indicator
int bars_calculated=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int OnInit()
{
//--- assignment of arrays to indicator buffers
SetIndexBuffer(0,Tenkan_sen_Buffer,INDICATOR_DATA);
SetIndexBuffer(1,Kijun_sen_Buffer,INDICATOR_DATA);
SetIndexBuffer(2,Senkou_Span_A_Buffer,INDICATOR_DATA);
SetIndexBuffer(3,Senkou_Span_B_Buffer,INDICATOR_DATA);
SetIndexBuffer(4,Chinkou_Span_Buffer,INDICATOR_DATA);
//--- set the shift for the Senkou Span channel of kijun_sen bars in the future direction
PlotIndexSetInteger(2,PLOT_SHIFT,kijun_sen);
//--- setting a shift for the Chikou Span line is not required, since the Chinkou data Span
//--- is already stored with a shift in iIchimoku
//--- determine the symbol the indicator is drawn for
name=symbol;
//--- delete spaces to the right and to the left
StringTrimRight(name);
StringTrimLeft(name);
//--- if it results in zero length of the 'name' string
if(StringLen(name)==0)
{
//--- take the symbol of the chart the indicator is attached to
name=_Symbol;
}
//--- create handle of the indicator
if(type==Call_iIchimoku)
handle=iIchimoku(name,period,tenkan_sen,kijun_sen,senkou_span_b);
else
{
//--- fill the structure with parameters of the indicator
MqlParam pars[3];
//--- periods and shifts of the Alligator lines
pars[0].type=TYPE_INT;
pars[0].integer_value=tenkan_sen;
pars[1].type=TYPE_INT;
pars[1].integer_value=kijun_sen;
pars[2].type=TYPE_INT;
pars[2].integer_value=senkou_span_b;
//--- create handle
handle=IndicatorCreate(name,period,IND_ICHIMOKU,3,pars);
}
//--- if the handle is not created
if(handle==INVALID_HANDLE)
{
//--- tell about the failure and output the error code
PrintFormat("Failed to create handle of the iIchimoku indicator for the symbol %s/%s, error code %d",
name,
EnumToString(period),
GetLastError());
//--- the indicator is stopped early
return(INIT_FAILED);
}
//--- show the symbol/timeframe the Ichimoku Kinko Hyo indicator is calculated for
short_name=StringFormat("iIchimoku(%s/%s, %d, %d ,%d)",name,EnumToString(period),
tenkan_sen,kijun_sen,senkou_span_b);
IndicatorSetString(INDICATOR_SHORTNAME,short_name);
//--- normal initialization of the indicator
return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
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[])
{
//--- number of values copied from the iIchimoku indicator
int values_to_copy;
//--- determine the number of values calculated in the indicator
int calculated=BarsCalculated(handle);
if(calculated<=0)
{
PrintFormat("BarsCalculated() returned %d, error code %d",calculated,GetLastError());
return(0);
}
//--- if it is the first start of calculation of the indicator or if the number of values in the iIchimoku indicator changed
//---or if it is necessary to calculated the indicator for two or more bars (it means something has changed in the price history)
if(prev_calculated==0 || calculated!=bars_calculated || rates_total>prev_calculated+1)
{
//--- if the Tenkan_sen_Buffer array is greater than the number of values in the iIchimoku indicator for symbol/period, then we don't copy everything
//--- otherwise, we copy less than the size of indicator buffers
if(calculated>rates_total) values_to_copy=rates_total;
else values_to_copy=calculated;
}
else
{
//--- it means that it's not the first time of the indicator calculation, and since the last call of OnCalculate()
//--- for calculation not more than one bar is added
values_to_copy=(rates_total-prev_calculated)+1;
}
//--- fill the arrays with values of the Ichimoku Kinko Hyo indicator
//--- if FillArraysFromBuffer returns false, it means the information is nor ready yet, quit operation
if(!FillArraysFromBuffers(Tenkan_sen_Buffer,Kijun_sen_Buffer,Senkou_Span_A_Buffer,Senkou_Span_B_Buffer,Chinkou_Span_Buffer,
kijun_sen,handle,values_to_copy)) return(0);
//--- form the message
string comm=StringFormat("%s ==> Updated value in the indicator %s: %d",
TimeToString(TimeCurrent(),TIME_DATE|TIME_SECONDS),
short_name,
values_to_copy);
//--- display the service message on the chart
Comment(comm);
//--- memorize the number of values in the Ichimoku Kinko Hyo indicator
bars_calculated=calculated;
//--- return the prev_calculated value for the next call
return(rates_total);
}
//+------------------------------------------------------------------+
//| Filling indicator buffers from the iIchimoku indicator |
//+------------------------------------------------------------------+
bool FillArraysFromBuffers(double &tenkan_sen_buffer[], // indicator buffer of the Tenkan-sen line
double &kijun_sen_buffer[], // indicator buffer of the Kijun_sen line
double &senkou_span_A_buffer[], // indicator buffer of the Senkou Span A line
double &senkou_span_B_buffer[], // indicator buffer of the Senkou Span B line
double &chinkou_span_buffer[], // indicator buffer of the Chinkou Span line
int senkou_span_shift, // shift of the Senkou Span lines in the future direction
int ind_handle, // handle of the iIchimoku indicator
int amount // number of copied values
)
{
//--- reset error code
ResetLastError();
//--- fill a part of the Tenkan_sen_Buffer array with values from the indicator buffer that has 0 index
if(CopyBuffer(ind_handle,0,0,amount,tenkan_sen_buffer)<0)
{
//--- if the copying fails, tell the error code
PrintFormat("1.Failed to copy data from the iIchimoku indicator, error code %d",GetLastError());
//--- quit with zero result - it means that the indicator is considered as not calculated
return(false);
}
//--- fill a part of the Kijun_sen_Buffer array with values from the indicator buffer that has index 1
if(CopyBuffer(ind_handle,1,0,amount,kijun_sen_buffer)<0)
{
//--- if the copying fails, tell the error code
PrintFormat("2.Failed to copy data from the iIchimoku indicator, error code %d",GetLastError());
//--- quit with zero result - it means that the indicator is considered as not calculated
return(false);
}
//--- fill a part of the Chinkou_Span_Buffer array with values from the indicator buffer that has index 2
//--- if senkou_span_shift>0, the line is shifted in the future direction by senkou_span_shift bars
if(CopyBuffer(ind_handle,2,-senkou_span_shift,amount,senkou_span_A_buffer)<0)
{
//--- if the copying fails, tell the error code
PrintFormat("3.Failed to copy data from the iIchimoku indicator, error code %d",GetLastError());
//--- quit with zero result - it means that the indicator is considered as not calculated
return(false);
}
//--- fill a part of the Senkou_Span_A_Buffer array with values from the indicator buffer that has index 3
//--- if senkou_span_shift>0, the line is shifted in the future direction by senkou_span_shift bars
if(CopyBuffer(ind_handle,3,-senkou_span_shift,amount,senkou_span_B_buffer)<0)
{
//--- if the copying fails, tell the error code
PrintFormat("4.Failed to copy data from the iIchimoku indicator, error code %d",GetLastError());
//--- quit with zero result - it means that the indicator is considered as not calculated
return(false);
}
//--- fill a part of the Senkou_Span_B_Buffer array with values from the indicator buffer that has 0 index
//--- when copying Chinkou Span, we don't need to consider the shift, since the Chinkou Span data
//--- is already stored with a shift in iIchimoku
if(CopyBuffer(ind_handle,4,0,amount,chinkou_span_buffer)<0)
{
//--- if the copying fails, tell the error code
PrintFormat("5.Failed to copy data from the iIchimoku indicator, error code %d",GetLastError());
//--- quit with zero result - it means that the indicator is considered as not calculated
return(false);
}
//--- everything is fine
return(true);
}
//+------------------------------------------------------------------+
//| Indicator deinitialization function |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
if(handle!=INVALID_HANDLE)
IndicatorRelease(handle);
//--- clear the chart after deleting the indicator
Comment("");
}