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mql5/Include/ChartObjects/ChartObjectsGann.mqh

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2025-08-05 01:57:33 -04:00
//+------------------------------------------------------------------+
//| ChartObjectsGann.mqh |
//| Copyright 2000-2025, MetaQuotes Ltd. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
//| All Gann tools. |
//+------------------------------------------------------------------+
#include "ChartObjectsLines.mqh"
//+------------------------------------------------------------------+
//| Class CChartObjectGannLine. |
//| Purpose: Class of the "Gann Line" object of chart. |
//| Derives from class CChartObjectTrendByAngle. |
//+------------------------------------------------------------------+
class CChartObjectGannLine : public CChartObjectTrendByAngle
{
public:
CChartObjectGannLine(void);
~CChartObjectGannLine(void);
//--- methods of access to properties of the object
double PipsPerBar(void) const;
bool PipsPerBar(const double ppb) const;
//--- method of creating the object
bool Create(long chart_id,const string name,const int window,
const datetime time1,const double price1,
const datetime time2,const double ppb);
//--- method of identifying the object
virtual int Type(void) const { return(OBJ_GANNLINE); }
//--- methods for working with files
virtual bool Save(const int file_handle);
virtual bool Load(const int file_handle);
};
//+------------------------------------------------------------------+
//| Constructor |
//+------------------------------------------------------------------+
CChartObjectGannLine::CChartObjectGannLine(void)
{
}
//+------------------------------------------------------------------+
//| Destructor |
//+------------------------------------------------------------------+
CChartObjectGannLine::~CChartObjectGannLine(void)
{
}
//+------------------------------------------------------------------+
//| Create object "Gann Line" |
//+------------------------------------------------------------------+
bool CChartObjectGannLine::Create(long chart_id,const string name,const int window,
const datetime time1,const double price1,
const datetime time2,const double ppb)
{
if(!ObjectCreate(chart_id,name,OBJ_GANNLINE,window,time1,price1,time2,0.0))
return(false);
if(!Attach(chart_id,name,window,2))
return(false);
if(!PipsPerBar(ppb))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Get value of the "PipsPerBar" property |
//+------------------------------------------------------------------+
double CChartObjectGannLine::PipsPerBar(void) const
{
//--- check
if(m_chart_id==-1)
return(EMPTY_VALUE);
//--- result
return(ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE));
}
//+------------------------------------------------------------------+
//| Set value for the "PipsPerBar" property |
//+------------------------------------------------------------------+
bool CChartObjectGannLine::PipsPerBar(const double ppb) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return(ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,ppb));
}
//+------------------------------------------------------------------+
//| Writing parameters of object to file |
//+------------------------------------------------------------------+
bool CChartObjectGannLine::Save(const int file_handle)
{
//--- check
if(file_handle==INVALID_HANDLE || m_chart_id==-1)
return(false);
//--- write
if(!CChartObjectTrend::Save(file_handle))
return(false);
//--- write value of the "PipsPerBar"
if(FileWriteDouble(file_handle,ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE))!=sizeof(double))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Reading parameters of object from file |
//+------------------------------------------------------------------+
bool CChartObjectGannLine::Load(const int file_handle)
{
//--- check
if(file_handle==INVALID_HANDLE || m_chart_id==-1)
return(false);
//--- read
if(!CChartObjectTrend::Load(file_handle))
return(false);
//--- read value of the "PipsPerBar" property
if(!ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,FileReadDouble(file_handle)))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Class CChartObjectGannFan. |
//| Purpose: Class of the "Gann Fan" object of chart. |
//| Derives from class CChartObjectTrend. |
//+------------------------------------------------------------------+
class CChartObjectGannFan : public CChartObjectTrend
{
public:
CChartObjectGannFan(void);
~CChartObjectGannFan(void);
//--- methods of access to properties of the object
double PipsPerBar(void) const;
bool PipsPerBar(const double ppb) const;
bool Downtrend(void) const;
bool Downtrend(const bool downtrend) const;
//--- method of create the object
bool Create(long chart_id,const string name,const int window,
const datetime time1,const double price1,
const datetime time2,const double ppb);
//--- method of identifying the object
virtual int Type(void) const { return(OBJ_GANNFAN); }
//--- methods for working with files
virtual bool Save(const int file_handle);
virtual bool Load(const int file_handle);
};
//+------------------------------------------------------------------+
//| Constructor |
//+------------------------------------------------------------------+
CChartObjectGannFan::CChartObjectGannFan(void)
{
}
//+------------------------------------------------------------------+
//| Destructor |
//+------------------------------------------------------------------+
CChartObjectGannFan::~CChartObjectGannFan(void)
{
}
//+------------------------------------------------------------------+
//| Create object "Gann Fan" |
//+------------------------------------------------------------------+
bool CChartObjectGannFan::Create(long chart_id,const string name,const int window,
const datetime time1,const double price1,
const datetime time2,const double ppb)
{
if(!ObjectCreate(chart_id,name,OBJ_GANNFAN,window,time1,price1,time2,0.0))
return(false);
if(!Attach(chart_id,name,window,2))
return(false);
if(!PipsPerBar(ppb))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Get value of the "PipsPerBar" property |
//+------------------------------------------------------------------+
double CChartObjectGannFan::PipsPerBar(void) const
{
//--- check
if(m_chart_id==-1)
return(EMPTY_VALUE);
//--- result
return(ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE));
}
//+------------------------------------------------------------------+
//| Set value for the "PipsPerBar" property |
//+------------------------------------------------------------------+
bool CChartObjectGannFan::PipsPerBar(const double ppb) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return(ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,ppb));
}
//+------------------------------------------------------------------+
//| Get value of the "Downtrend" property |
//+------------------------------------------------------------------+
bool CChartObjectGannFan::Downtrend(void) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return((bool)ObjectGetInteger(m_chart_id,m_name,OBJPROP_DIRECTION));
}
//+------------------------------------------------------------------+
//| Set value for the "Downtrend" property |
//+------------------------------------------------------------------+
bool CChartObjectGannFan::Downtrend(const bool downtrend) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_DIRECTION,downtrend));
}
//+------------------------------------------------------------------+
//| Writing parameters of object to file |
//+------------------------------------------------------------------+
bool CChartObjectGannFan::Save(const int file_handle)
{
//--- check
if(file_handle==INVALID_HANDLE || m_chart_id==-1)
return(false);
//--- write
if(!CChartObjectTrend::Save(file_handle))
return(false);
//--- write value of the "PipsPerBar" property
if(FileWriteDouble(file_handle,ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE))!=sizeof(double))
return(false);
//--- write value of the "Downtrend" property
if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_DIRECTION),CHAR_VALUE)!=sizeof(char))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Reading object parameters from file |
//+------------------------------------------------------------------+
bool CChartObjectGannFan::Load(const int file_handle)
{
//--- check
if(file_handle==INVALID_HANDLE || m_chart_id==-1)
return(false);
//--- read
if(!CChartObjectTrend::Load(file_handle))
return(false);
//--- read value of the "PipsPerBar" property
if(!ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,FileReadDouble(file_handle)))
return(false);
//--- read value of the "Downtrend" property
if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_DIRECTION,FileReadInteger(file_handle,CHAR_VALUE)))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Class CChartObjectGannGrid. |
//| Purpose: Class of the "Gann Grid" object of chart. |
//| Derives from class CChartObjectTrend. |
//+------------------------------------------------------------------+
class CChartObjectGannGrid : public CChartObjectTrend
{
public:
CChartObjectGannGrid(void);
~CChartObjectGannGrid(void);
//--- methods of access to properties of the object
double PipsPerBar(void) const;
bool PipsPerBar(const double ppb) const;
bool Downtrend(void) const;
bool Downtrend(const bool downtrend) const;
//--- method of creating the object
bool Create(long chart_id,const string name,const int window,
const datetime time1,const double price1,
const datetime time2,const double ppb);
//--- method of identifying the object
virtual int Type(void) const { return(OBJ_GANNGRID); }
//--- methods for working with files
virtual bool Save(const int file_handle);
virtual bool Load(const int file_handle);
};
//+------------------------------------------------------------------+
//| Constructor |
//+------------------------------------------------------------------+
CChartObjectGannGrid::CChartObjectGannGrid(void)
{
}
//+------------------------------------------------------------------+
//| Destructor |
//+------------------------------------------------------------------+
CChartObjectGannGrid::~CChartObjectGannGrid(void)
{
}
//+------------------------------------------------------------------+
//| Create object "Gann Grid" |
//+------------------------------------------------------------------+
bool CChartObjectGannGrid::Create(long chart_id,const string name,const int window,
const datetime time1,const double price1,
const datetime time2,const double ppb)
{
if(!ObjectCreate(chart_id,name,OBJ_GANNGRID,window,time1,price1,time2,0.0))
return(false);
if(!Attach(chart_id,name,window,2))
return(false);
if(!PipsPerBar(ppb))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Get value of the"PipsPerBar" property |
//+------------------------------------------------------------------+
double CChartObjectGannGrid::PipsPerBar(void) const
{
//--- check
if(m_chart_id==-1)
return(EMPTY_VALUE);
//--- result
return(ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE));
}
//+------------------------------------------------------------------+
//| Set value for the "PipsPerBar" property |
//+------------------------------------------------------------------+
bool CChartObjectGannGrid::PipsPerBar(const double ppb) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return(ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,ppb));
}
//+------------------------------------------------------------------+
//| Get the property value "Downtrend" |
//+------------------------------------------------------------------+
bool CChartObjectGannGrid::Downtrend(void) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return((bool)ObjectGetInteger(m_chart_id,m_name,OBJPROP_DIRECTION));
}
//+------------------------------------------------------------------+
//| Set the property value "Downtrend" |
//+------------------------------------------------------------------+
bool CChartObjectGannGrid::Downtrend(const bool downtrend) const
{
//--- check
if(m_chart_id==-1)
return(false);
//--- result
return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_DIRECTION,downtrend));
}
//+------------------------------------------------------------------+
//| Writing parameters of object to file |
//+------------------------------------------------------------------+
bool CChartObjectGannGrid::Save(const int file_handle)
{
//--- check
if(file_handle==INVALID_HANDLE || m_chart_id==-1)
return(false);
//--- write
if(!CChartObjectTrend::Save(file_handle))
return(false);
//--- write value of the "PipsPerBar" property
if(FileWriteDouble(file_handle,ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE))!=sizeof(double))
return(false);
//--- write value of the "Downtrend" property
if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_DIRECTION),CHAR_VALUE)!=sizeof(char))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
//| Reading paprameters of object from file |
//+------------------------------------------------------------------+
bool CChartObjectGannGrid::Load(const int file_handle)
{
//--- check
if(file_handle==INVALID_HANDLE || m_chart_id==-1)
return(false);
//--- read
if(!CChartObjectTrend::Load(file_handle))
return(false);
//--- read value of the "PipsPerBar" property
if(!ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,FileReadDouble(file_handle)))
return(false);
//--- read value of the "Downtrend" property
if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_DIRECTION,FileReadInteger(file_handle,CHAR_VALUE)))
return(false);
//--- successful
return(true);
}
//+------------------------------------------------------------------+
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