60 lines
2.8 KiB
MQL5
60 lines
2.8 KiB
MQL5
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//| MoneyFixedLot.mqh |
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//| Copyright 2000-2023, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#include "..\Expert\ExpertMoneyCustom.mqh"
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// wizard description start
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//+------------------------------------------------------------------+
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//| Description of the class |
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//| Title=Trading with fixed trade volume |
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//| Type=Money |
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//| Name=FixLot |
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//| Class=CMoneyFixedLot |
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//| Page= |
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//| Parameter=Percent,double,10.0,Percent |
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//| Parameter=Lots,double,0.1,Fixed volume |
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//+------------------------------------------------------------------+
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// wizard description end
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//+------------------------------------------------------------------+
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//| Class CMoneyFixedLot. |
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//| Purpose: Class of money management with fixed lot. |
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//| Derives from class CExpertMoney. |
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//+------------------------------------------------------------------+
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class CMoneyFixedLot : public CExpertMoneyCustom
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{
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protected:
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//--- input parameters
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double m_lots;
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public:
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//---
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void Lots(double lots) { m_lots=lots; }
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virtual bool ValidationSettings(void);
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//---
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virtual double CheckOpenLong(double price,double sl) { return(m_lots); }
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virtual double CheckOpenShort(double price,double sl) { return(m_lots); }
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};
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//+------------------------------------------------------------------+
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//| Validation settings protected data. |
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//+------------------------------------------------------------------+
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bool CMoneyFixedLot::ValidationSettings(void)
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{
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if(!CExpertMoney::ValidationSettings())
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return(false);
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//--- initial data checks
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if(m_lots<m_symbol.LotsMin() || m_lots>m_symbol.LotsMax())
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{
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printf(__FUNCTION__+": lots amount must be in the range from %f to %f",m_symbol.LotsMin(),m_symbol.LotsMax());
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return(false);
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}
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if(MathAbs(m_lots/m_symbol.LotsStep()-MathRound(m_lots/m_symbol.LotsStep()))>1.0E-10)
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{
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printf(__FUNCTION__+": lots amount is not corresponding with lot step %f",m_symbol.LotsStep());
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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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