| //+------------------------------------------------------------------+
|
| //| ChartObjectSubChart.mqh |
|
| //| Copyright 2000-2025, MetaQuotes Ltd. |
|
| //| https://www.mql5.com |
|
| //+------------------------------------------------------------------+
|
| #include "ChartObject.mqh"
|
| //+------------------------------------------------------------------+
|
| //| Class CChartObjectSubChart. |
|
| //| Purpose: Class of the "SubChart" object of chart. |
|
| //| Derives from class CChartObject. |
|
| //+------------------------------------------------------------------+
|
| class CChartObjectSubChart : public CChartObject
|
| {
|
| public:
|
| CChartObjectSubChart(void);
|
| ~CChartObjectSubChart(void);
|
| //--- method of creating object
|
| bool Create(long chart_id,const string name,const int window,const int X,const int Y,const int sizeX,const int sizeY);
|
| //--- method of identifying the object
|
| virtual int Type(void) const { return(OBJ_CHART); }
|
| //--- methods of access to properties of the object
|
| int X_Distance(void) const;
|
| bool X_Distance(const int X) const;
|
| int Y_Distance(void) const;
|
| bool Y_Distance(const int Y) const;
|
| ENUM_BASE_CORNER Corner(void) const;
|
| bool Corner(const ENUM_BASE_CORNER corner) const;
|
| int X_Size(void) const;
|
| bool X_Size(const int size) const;
|
| int Y_Size(void) const;
|
| bool Y_Size(const int size) const;
|
| string Symbol(void) const;
|
| bool Symbol(const string symbol) const;
|
| int Period(void) const;
|
| bool Period(const int period) const;
|
| int Scale(void) const;
|
| bool Scale(const int scale) const;
|
| bool DateScale(void) const;
|
| bool DateScale(const bool scale) const;
|
| bool PriceScale(void) const;
|
| bool PriceScale(const bool scale) const;
|
| //--- change of time/price coordinates is blocked
|
| datetime Time(const int point) const { return(CChartObject::Time(point)); }
|
| bool Time(const int point,const datetime time) const { return(false); }
|
| double Price(const int point) const { return(CChartObject::Price(point)); }
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| bool Price(const int point,const double price) const { return(false); }
|
| //--- methods for working with files
|
| virtual bool Save(const int file_handle);
|
| virtual bool Load(const int file_handle);
|
| };
|
| //+------------------------------------------------------------------+
|
| //| Constructor |
|
| //+------------------------------------------------------------------+
|
| CChartObjectSubChart::CChartObjectSubChart(void)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Destructor |
|
| //+------------------------------------------------------------------+
|
| CChartObjectSubChart::~CChartObjectSubChart(void)
|
| {
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Create object "SubChart" |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Create(long chart_id,const string name,const int window,
|
| const int X,const int Y,const int sizeX,const int sizeY)
|
| {
|
| if(!ObjectCreate(chart_id,name,OBJ_CHART,window,0,0,0))
|
| return(false);
|
| if(!Attach(chart_id,name,window,1))
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| return(false);
|
| if(!X_Distance(X) || !Y_Distance(Y))
|
| return(false);
|
| if(!X_Size(sizeX) || !Y_Size(sizeY))
|
| return(false);
|
| //--- successful
|
| return(true);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get the X-distance |
|
| //+------------------------------------------------------------------+
|
| int CChartObjectSubChart::X_Distance(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(0);
|
| //--- result
|
| return((int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_XDISTANCE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set the X-distance |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::X_Distance(const int X) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_XDISTANCE,X));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get the Y-distance |
|
| //+------------------------------------------------------------------+
|
| int CChartObjectSubChart::Y_Distance(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(0);
|
| //--- result
|
| return((int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_YDISTANCE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set the Y-distance |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Y_Distance(const int Y) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_YDISTANCE,Y));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get base corner |
|
| //+------------------------------------------------------------------+
|
| ENUM_BASE_CORNER CChartObjectSubChart::Corner(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(WRONG_VALUE);
|
| //--- result
|
| return((ENUM_BASE_CORNER)ObjectGetInteger(m_chart_id,m_name,OBJPROP_CORNER));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set base corner |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Corner(const ENUM_BASE_CORNER corner) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_CORNER,corner));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get the X-size |
|
| //+------------------------------------------------------------------+
|
| int CChartObjectSubChart::X_Size(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(0);
|
| //--- result
|
| return((int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_XSIZE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set X-size |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::X_Size(const int size) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_XSIZE,size));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get the Y-size |
|
| //+------------------------------------------------------------------+
|
| int CChartObjectSubChart::Y_Size(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(0);
|
| //--- result
|
| return((int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_YSIZE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set the Y-size |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Y_Size(const int size) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_YSIZE,size));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get chart symbol |
|
| //+------------------------------------------------------------------+
|
| string CChartObjectSubChart::Symbol(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return("");
|
| //--- result
|
| return(ObjectGetString(m_chart_id,m_name,OBJPROP_SYMBOL));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set chart symbol |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Symbol(const string symbol) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetString(m_chart_id,m_name,OBJPROP_SYMBOL,symbol));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get chart period |
|
| //+------------------------------------------------------------------+
|
| int CChartObjectSubChart::Period(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(0);
|
| //--- result
|
| return((int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_PERIOD));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set chart period |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Period(const int period) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_PERIOD,period));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get chart scale |
|
| //+------------------------------------------------------------------+
|
| int CChartObjectSubChart::Scale(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(-1);
|
| //--- result
|
| return((int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_CHART_SCALE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set chart scale |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Scale(const int scale) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_CHART_SCALE,scale));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get the "time scale" flag |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::DateScale(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return((bool)ObjectGetInteger(m_chart_id,m_name,OBJPROP_DATE_SCALE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set the "time scale" flag |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::DateScale(const bool scale) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_DATE_SCALE,scale));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Get the "price scale" flag |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::PriceScale(void) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return((bool)ObjectGetInteger(m_chart_id,m_name,OBJPROP_PRICE_SCALE));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Set the "price scale" flag |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::PriceScale(const bool scale) const
|
| {
|
| //--- check
|
| if(m_chart_id==-1)
|
| return(false);
|
| //--- result
|
| return(ObjectSetInteger(m_chart_id,m_name,OBJPROP_PRICE_SCALE,scale));
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Writing parameters of object to file |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Save(const int file_handle)
|
| {
|
| int len;
|
| string str;
|
| //--- check
|
| if(file_handle==INVALID_HANDLE || m_chart_id==-1)
|
| return(false);
|
| //--- write
|
| if(!CChartObject::Save(file_handle))
|
| return(false);
|
| //--- write value of the "X-distance" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_XDISTANCE),INT_VALUE)!=sizeof(int))
|
| return(false);
|
| //--- write value of the "Y-distance" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_YDISTANCE),INT_VALUE)!=sizeof(int))
|
| return(false);
|
| //--- write value of the "corner" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_CORNER),INT_VALUE)!=sizeof(int))
|
| return(false);
|
| //--- write value of the "X-size" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_XSIZE),INT_VALUE)!=sizeof(int))
|
| return(false);
|
| //--- write value of the "Y-size" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_YSIZE),INT_VALUE)!=sizeof(int))
|
| return(false);
|
| //--- write value of the "symbol" property
|
| str=ObjectGetString(m_chart_id,m_name,OBJPROP_SYMBOL);
|
| len=StringLen(str);
|
| if(FileWriteInteger(file_handle,len,INT_VALUE)!=INT_VALUE)
|
| return(false);
|
| if(len!=0 && FileWriteString(file_handle,str,len)!=len)
|
| return(false);
|
| //--- write value of the "period" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_PERIOD),INT_VALUE)!=sizeof(int))
|
| return(false);
|
| //--- write value of the "scale" property
|
| if(FileWriteDouble(file_handle,ObjectGetDouble(m_chart_id,m_name,OBJPROP_SCALE))!=sizeof(double))
|
| return(false);
|
| //--- write value of the "time scale" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_DATE_SCALE),CHAR_VALUE)!=sizeof(char))
|
| return(false);
|
| //--- write value of the "price scale" property
|
| if(FileWriteInteger(file_handle,(int)ObjectGetInteger(m_chart_id,m_name,OBJPROP_PRICE_SCALE),CHAR_VALUE)!=sizeof(char))
|
| return(false);
|
| //--- successful
|
| return(true);
|
| }
|
| //+------------------------------------------------------------------+
|
| //| Reading parameters of object from file |
|
| //+------------------------------------------------------------------+
|
| bool CChartObjectSubChart::Load(const int file_handle)
|
| {
|
| int len;
|
| string str;
|
| //--- check
|
| if(file_handle==INVALID_HANDLE || m_chart_id==-1)
|
| return(false);
|
| //--- read
|
| if(!CChartObject::Load(file_handle))
|
| return(false);
|
| //--- read value of the "X-distance" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_XDISTANCE,FileReadInteger(file_handle,INT_VALUE)))
|
| return(false);
|
| //--- read value of the "Y-distance" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_YDISTANCE,FileReadInteger(file_handle,INT_VALUE)))
|
| return(false);
|
| //--- read value of the "corner" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_CORNER,FileReadInteger(file_handle,INT_VALUE)))
|
| return(false);
|
| //--- read value of the "X-size" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_XSIZE,FileReadInteger(file_handle,INT_VALUE)))
|
| return(false);
|
| //--- read value of the "Y-size" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_YSIZE,FileReadInteger(file_handle,INT_VALUE)))
|
| return(false);
|
| //--- read value of the "symbol" property
|
| len=FileReadInteger(file_handle,INT_VALUE);
|
| str=(len!=0) ? FileReadString(file_handle,len) : "";
|
| if(!ObjectSetString(m_chart_id,m_name,OBJPROP_SYMBOL,str))
|
| return(false);
|
| //--- read value of the "period" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_PERIOD,FileReadInteger(file_handle,INT_VALUE)))
|
| return(false);
|
| //--- read value of the "scale" property
|
| if(!ObjectSetDouble(m_chart_id,m_name,OBJPROP_SCALE,FileReadDatetime(file_handle)))
|
| return(false);
|
| //--- read value of the "time scale" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_DATE_SCALE,FileReadInteger(file_handle,CHAR_VALUE)))
|
| return(false);
|
| //--- read value of the "price scale" property
|
| if(!ObjectSetInteger(m_chart_id,m_name,OBJPROP_PRICE_SCALE,FileReadInteger(file_handle,CHAR_VALUE)))
|
| return(false);
|
| //--- successful
|
| return(true);
|
| }
|
| //+------------------------------------------------------------------+
|
