114 lines
4.4 KiB
MQL5
114 lines
4.4 KiB
MQL5
//+------------------------------------------------------------------+
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//| ATR.mqh - Average True Range Indicator |
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//+------------------------------------------------------------------+
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#property copyright "2025, Windsurf Engineering"
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#property link "https://www.windsurf.ai"
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#property version "1.00"
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#property strict
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#include <Object.mqh>
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#include <Indicators\Indicator.mqh>
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//+------------------------------------------------------------------+
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//| Class CiATR. |
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//| Purpose: Class of the "Average True Range" indicator. |
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//| Derives from class CIndicator. |
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//+------------------------------------------------------------------+
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class CiATR : public CIndicator
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{
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protected:
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int m_ma_period;
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public:
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CiATR(void);
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~CiATR(void);
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//--- methods of access to protected data
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int MaPeriod(void) const { return(m_ma_period); }
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//--- method of creation
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bool Create(const string symbol,const ENUM_TIMEFRAMES period,const int ma_period);
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//--- methods of access to indicator data
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double Main(const int index) const;
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//--- method of identifying
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virtual int Type(void) const { return(IND_ATR); }
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protected:
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//--- methods of tuning
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virtual bool Initialize(const string symbol,const ENUM_TIMEFRAMES period,const int num_params,const MqlParam ¶ms[]);
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bool Initialize(const string symbol,const ENUM_TIMEFRAMES period,const int ma_period);
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};
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//+------------------------------------------------------------------+
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//| Constructor |
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//+------------------------------------------------------------------+
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CiATR::CiATR(void) : m_ma_period(-1)
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{
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}
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//+------------------------------------------------------------------+
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//| Destructor |
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//+------------------------------------------------------------------+
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CiATR::~CiATR(void)
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{
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}
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//+------------------------------------------------------------------+
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//| Create the "Average True Range" indicator |
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//+------------------------------------------------------------------+
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bool CiATR::Create(const string symbol,const ENUM_TIMEFRAMES period,const int ma_period)
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{
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//--- check history
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if(!SetSymbolPeriod(symbol,period))
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return(false);
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//--- create
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m_handle=iATR(symbol,period,ma_period);
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//--- check result
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if(m_handle==INVALID_HANDLE)
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return(false);
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//--- indicator successfully created
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if(!Initialize(symbol,period,ma_period))
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{
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//--- initialization failed
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IndicatorRelease(m_handle);
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m_handle=INVALID_HANDLE;
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//--- failed
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return(false);
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}
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//--- ok
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return(true);
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}
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//+------------------------------------------------------------------+
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//| Initialize the indicator with universal parameters |
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//+------------------------------------------------------------------+
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bool CiATR::Initialize(const string symbol,const ENUM_TIMEFRAMES period,const int num_params,const MqlParam ¶ms[])
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{
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return(Initialize(symbol,period,(int)params[0].integer_value));
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}
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//+------------------------------------------------------------------+
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//| Initialize the indicator with special parameters |
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//+------------------------------------------------------------------+
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bool CiATR::Initialize(const string symbol,const ENUM_TIMEFRAMES period,const int ma_period)
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{
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if(CreateBuffers(symbol,period,1))
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{
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//--- string of status of drawing
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m_name ="ATR";
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m_status = "("+symbol+","+EnumToString(period)+","+IntegerToString(ma_period)+") H:"+IntegerToString(m_handle);
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//--- save settings
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m_ma_period=ma_period;
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//--- create buffers
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// Buffer type is set automatically by the framework
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//--- ok
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return(true);
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}
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//--- error
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return(false);
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}
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//+------------------------------------------------------------------+
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//| Access to ATR buffer |
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//+------------------------------------------------------------------+
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double CiATR::Main(const int index) const
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{
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CIndicatorBuffer *buffer=At(0);
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//--- check
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if(buffer==NULL)
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return(EMPTY_VALUE);
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//---
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return(buffer.At(index));
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}
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