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First commit [09/03/2018]

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Pierre8rTeam
2018-03-09 16:43:19 +01:00
commit 25e9006a0b
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Include/Files/FileBin.mqh
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//+------------------------------------------------------------------+
//| FileBin.mqh |
//| Copyright 2009-2017, MetaQuotes Software Corp. |
//| http://www.mql5.com |
//+------------------------------------------------------------------+
#include "File.mqh"
//+------------------------------------------------------------------+
//| Class CFileBin |
//| Purpose: Class of operations with binary files |
//| Derives from class CFile |
//+------------------------------------------------------------------+
class CFileBin : public CFile
{
public:
CFileBin(void);
~CFileBin(void);
//--- methods for working with files
int Open(const string file_name,const int open_flags);
//--- methods for writing data
uint WriteChar(const char value);
uint WriteShort(const short value);
uint WriteInteger(const int value);
uint WriteLong(const long value);
uint WriteFloat(const float value);
uint WriteDouble(const double value);
uint WriteString(const string value);
uint WriteString(const string value,const int size);
uint WriteCharArray(const char &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint WriteShortArray(const short& array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint WriteIntegerArray(const int& array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint WriteLongArray(const long &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint WriteFloatArray(const float &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint WriteDoubleArray(const double &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
template<typename T>
uint WriteArray(T &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
template<typename T>
uint WriteStruct(T &data);
bool WriteObject(CObject *object);
template<typename T>
uint WriteEnum(const T value) { return(WriteInteger((int)value)); }
//--- methods for reading data
bool ReadChar(char &value);
bool ReadShort(short &value);
bool ReadInteger(int &value);
bool ReadLong(long &value);
bool ReadFloat(float &value);
bool ReadDouble(double &value);
bool ReadString(string &value);
bool ReadString(string &value,const int size);
uint ReadCharArray(char &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint ReadShortArray(short& array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint ReadIntegerArray(int& array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint ReadLongArray(long &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint ReadFloatArray(float &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
uint ReadDoubleArray(double &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
template<typename T>
uint ReadArray(T &array[],const int start_item=0,const int items_count=WHOLE_ARRAY);
template<typename T>
uint ReadStruct(T &data);
bool ReadObject(CObject *object);
template<typename T>
bool ReadEnum(T &value);
};
//+------------------------------------------------------------------+
//| Constructor |
//+------------------------------------------------------------------+
CFileBin::CFileBin(void)
{
}
//+------------------------------------------------------------------+
//| Destructor |
//+------------------------------------------------------------------+
CFileBin::~CFileBin(void)
{
}
//+------------------------------------------------------------------+
//| Opening a binary file |
//+------------------------------------------------------------------+
int CFileBin::Open(const string file_name,const int open_flags)
{
return(CFile::Open(file_name,open_flags|FILE_BIN));
}
//+------------------------------------------------------------------+
//| Write a variable of char or uchar type |
//+------------------------------------------------------------------+
uint CFileBin::WriteChar(const char value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteInteger(m_handle,value,sizeof(char)));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a variable of short or ushort type |
//+------------------------------------------------------------------+
uint CFileBin::WriteShort(const short value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteInteger(m_handle,value,sizeof(short)));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a variable of int or uint type |
//+------------------------------------------------------------------+
uint CFileBin::WriteInteger(const int value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteInteger(m_handle,value,sizeof(int)));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a variable of long or ulong type |
//+------------------------------------------------------------------+
uint CFileBin::WriteLong(const long value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteLong(m_handle,value));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a variable of float type |
//+------------------------------------------------------------------+
uint CFileBin::WriteFloat(const float value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteFloat(m_handle,value));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a variable of double type |
//+------------------------------------------------------------------+
uint CFileBin::WriteDouble(const double value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteDouble(m_handle,value));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a variable of string type |
//+------------------------------------------------------------------+
uint CFileBin::WriteString(const string value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
//--- size of string
int size=StringLen(value);
//--- write
if(FileWriteInteger(m_handle,size)==sizeof(int))
return(FileWriteString(m_handle,value,size));
}
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write a part of string |
//+------------------------------------------------------------------+
uint CFileBin::WriteString(const string value,const int size)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteString(m_handle,value,size));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write array variables of type char or uchar |
//+------------------------------------------------------------------+
uint CFileBin::WriteCharArray(const char &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an array of variables of short or ushort type |
//+------------------------------------------------------------------+
uint CFileBin::WriteShortArray(const short &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an array of variables of int or uint type |
//+------------------------------------------------------------------+
uint CFileBin::WriteIntegerArray(const int &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an array of variables of long or ulong type |
//+------------------------------------------------------------------+
uint CFileBin::WriteLongArray(const long &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an array of variables of float type |
//+------------------------------------------------------------------+
uint CFileBin::WriteFloatArray(const float &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an array of variables of double type |
//+------------------------------------------------------------------+
uint CFileBin::WriteDoubleArray(const double &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an array of variables of any type |
//+------------------------------------------------------------------+
template<typename T>
uint CFileBin::WriteArray(T &array[],const int start_item=0,const int items_count=WHOLE_ARRAY)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write an structure |
//+------------------------------------------------------------------+
template<typename T>
uint CFileBin::WriteStruct(T &data)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileWriteStruct(m_handle,data));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Write data of an instance of the CObject class |
//+------------------------------------------------------------------+
bool CFileBin::WriteObject(CObject *object)
{
//--- check handle & object
if(m_handle!=INVALID_HANDLE)
if(CheckPointer(object))
return(object.Save(m_handle));
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of char or uchar type |
//+------------------------------------------------------------------+
bool CFileBin::ReadChar(char &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
value=(char)FileReadInteger(m_handle,sizeof(char));
return(GetLastError()==0);
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of short or ushort type |
//+------------------------------------------------------------------+
bool CFileBin::ReadShort(short &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
value=(short)FileReadInteger(m_handle,sizeof(short));
return(GetLastError()==0);
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of int or uint type |
//+------------------------------------------------------------------+
bool CFileBin::ReadInteger(int &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
value=FileReadInteger(m_handle,sizeof(int));
return(GetLastError()==0);
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of long or ulong type |
//+------------------------------------------------------------------+
bool CFileBin::ReadLong(long &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
value=FileReadLong(m_handle);
return(GetLastError()==0);
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of float type |
//+------------------------------------------------------------------+
bool CFileBin::ReadFloat(float &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
value=FileReadFloat(m_handle);
return(GetLastError()==0);
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of double type |
//+------------------------------------------------------------------+
bool CFileBin::ReadDouble(double &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
value=FileReadDouble(m_handle);
return(GetLastError()==0);
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of string type |
//+------------------------------------------------------------------+
bool CFileBin::ReadString(string &value)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
ResetLastError();
int size=FileReadInteger(m_handle);
if(GetLastError()==0)
{
value=FileReadString(m_handle,size);
return(size==StringLen(value));
}
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a part of string |
//+------------------------------------------------------------------+
bool CFileBin::ReadString(string &value,const int size)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
{
value=FileReadString(m_handle,size);
return(size==StringLen(value));
}
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read an array of variables of char or uchar type |
//+------------------------------------------------------------------+
uint CFileBin::ReadCharArray(char &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an array of variables of short or ushort type |
//+------------------------------------------------------------------+
uint CFileBin::ReadShortArray(short &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an array of variables of int or uint type |
//+------------------------------------------------------------------+
uint CFileBin::ReadIntegerArray(int &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an array of variables of long or ulong type |
//+------------------------------------------------------------------+
uint CFileBin::ReadLongArray(long &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an array of variables of float type |
//+------------------------------------------------------------------+
uint CFileBin::ReadFloatArray(float &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an array of variables of double type |
//+------------------------------------------------------------------+
uint CFileBin::ReadDoubleArray(double &array[],const int start_item,const int items_count)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an array of variables of any type |
//+------------------------------------------------------------------+
template<typename T>
uint CFileBin::ReadArray(T &array[],const int start_item=0,const int items_count=WHOLE_ARRAY)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadArray(m_handle,array,start_item,items_count));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read an structure |
//+------------------------------------------------------------------+
template<typename T>
uint CFileBin::ReadStruct(T &data)
{
//--- check handle
if(m_handle!=INVALID_HANDLE)
return(FileReadStruct(m_handle,data));
//--- failure
return(0);
}
//+------------------------------------------------------------------+
//| Read data of an instance of the CObject class |
//+------------------------------------------------------------------+
bool CFileBin::ReadObject(CObject *object)
{
//--- check handle & object
if(m_handle!=INVALID_HANDLE)
if(CheckPointer(object))
return(object.Load(m_handle));
//--- failure
return(false);
}
//+------------------------------------------------------------------+
//| Read a variable of an enumeration type |
//+------------------------------------------------------------------+
template<typename T>
bool CFileBin::ReadEnum(T &value)
{
int val;
if(!ReadInteger(val))
return(false);
//---
value=(T)val;
return(true);
}
//+------------------------------------------------------------------+