//+------------------------------------------------------------------+
//|                                                      I-MA-v1.mq5 |
//|                             Thorsten Fischer Copyright 2019-2020 |
//|                                         https://mql5.tfsystem.de |
//+------------------------------------------------------------------+
#property copyright "Thorsten Fischer Copyright 2019-2020"
#property link      "https://mql5.tfsystem.de"
#property version   "1.00"
#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots   2
//--- plot Label1
//#property indicator_label1  "MA1"
//#property indicator_type1   DRAW_LINE
//#property indicator_color1  clrRed
//#property indicator_style1  STYLE_SOLID
//#property indicator_width1  1
//--- input parameters
input string   i_Short_Name="Ma Test";       // MA Short Name
input int      i_MA_Periode=5;               // MA Periode
input int      i_MA_Draw_Begin=5;            // MA Zeichnen Beginn
input int      i_MA_Shift=0;                 // MA Verschiebung
input color    i_MA_Color=clrTan;            // MA Linien Farbe
input int      i_MA_Width=3;                 // MA Linien Breite
input ENUM_LINE_STYLE   i_MA_Style=0;        // MA Linien Style
input ENUM_MA_METHOD i_MA_Method=MODE_SMMA;  // MA Art der Glättung
input ENUM_APPLIED_PRICE   i_MA_Applied_Price_High=PRICE_HIGH; // MA Preistyp oben
input ENUM_APPLIED_PRICE   i_MA_Applied_Price_Low=PRICE_LOW;  // MA Preistyp unten
input ENUM_TIMEFRAMES   i_Period=PERIOD_CURRENT;   // Zeitrahmen
string   i_Symbol;   // Indicator Symbol
bool  einmal=true;
//---
int         i_MA_Handle_High;
int         i_MA_Handle_Low;
//--- indicator buffers
//double         Label1Buffer[];
double      i_MA_Buffer_High[];
double      i_MA_Buffer_Low[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
{
//--- indicator buffers mapping
   //SetIndexBuffer(0,Label1Buffer,INDICATOR_DATA);
   //SetIndexBuffer(0,i_MA_Buffer,INDICATOR_DATA);
   //---
   i_Symbol=Symbol();
   //---
   i_MA_Handle_High=iMA(i_Symbol,i_Period,i_MA_Periode,i_MA_Shift,i_MA_Method,i_MA_Applied_Price_High);
   i_MA_Handle_Low=iMA(i_Symbol,i_Period,i_MA_Periode,i_MA_Shift,i_MA_Method,i_MA_Applied_Price_Low);
   if(i_MA_Handle_High==INVALID_HANDLE || i_MA_Handle_Low==INVALID_HANDLE)
      {
         Print("Indicator handle error");
         return(INIT_FAILED);
      }
   //---
   //PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,i_MA_Draw_Begin);
   //PlotIndexSetInteger(0,PLOT_LINE_COLOR,i_MA_Color);
   //PlotIndexSetInteger(0,PLOT_LINE_WIDTH,i_MA_Width);
   //PlotIndexSetInteger(0,PLOT_LINE_STYLE,i_MA_Style);
   //PlotIndexSetInteger(0,PLOT_SHIFT,i_MA_Shift);
   PlotIndexSetString(0,PLOT_LABEL,"ma0");
   //---
   //ChartIndicatorAdd(ChartID(),0,i_MA_Handle_High);
   //ChartIndicatorAdd(ChartID(),0,i_MA_Handle_Low);
   IndicatorSetString(INDICATOR_SHORTNAME,i_Short_Name);
//---
   return(INIT_SUCCEEDED);
}
//+------------------------------------------------------------------+
//| deinitialization function                                        |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
   if (i_MA_Handle_High!=INVALID_HANDLE)
      {
         IndicatorRelease(i_MA_Handle_High);
      }
   if (i_MA_Handle_Low!=INVALID_HANDLE)
      {
         IndicatorRelease(i_MA_Handle_Low);
      }
   Comment("");
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
//int OnCalculate(const int rates_total,
//                const int prev_calculated,
//                const int begin,
//                const double &price[])
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[])
{
//---
   int   calculated=BarsCalculated(i_MA_Handle_High);
   if(einmal)
      {
         //Print(__FUNCTION__+" calculated : "+(string)calculated);
         //Print(__FUNCTION__+" rates_total : "+(string)rates_total);
         //Print(__FUNCTION__+" prev_calculated : "+(string)prev_calculated);
         einmal=false;
      }
   //---
   CopyBuffer(i_MA_Handle_High,0,prev_calculated,calculated,i_MA_Buffer_High);
//--- return value of prev_calculated for next call
   return(rates_total);
}
//+------------------------------------------------------------------+