wxWidgets/include/wx/set.h
2003-08-03 20:14:09 +00:00

114 lines
2.3 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/set.h
// Purpose: a bitset suited for replacing the current style flags
// Author: Stefan Csomor
// Modified by:
// Created: 27/07/03
// RCS-ID: $Id$
// Copyright: (c) 2003 Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_SETH__
#define _WX_SETH__
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma interface "set.h"
#endif
// wxSet should be applied to an enum, then this can be used like
// bitwise operators but keeps the type safety and information, the
// enums must be in a sequence , their value determines the bit position
// that they represent
template <class T> class wxSet
{
friend class wxEnumData ;
public:
wxSet() { m_data = 0; }
wxSet(const wxSet &src) { m_data = src.m_data; }
wxSet(const T el) { m_data |= 1 << el; }
wxSet &operator =(const wxSet &rhs)
{
m_data = rhs.m_data;
return *this;
}
wxSet &operator +=(const wxSet &rhs) // union
{
m_data |= rhs.m_data;
return *this;
}
wxSet &operator -=(const wxSet &rhs) // difference
{
m_data ^= rhs.m_data;
return *this;
}
wxSet &operator *=(const wxSet &rhs) // intersection
{
m_data &= rhs.m_data;
return *this;
}
wxSet operator +(const wxSet &rhs) const // union
{
wxSet<T> s;
s.m_data = m_data | rhs.m_data;
return s;
}
wxSet operator -(const wxSet &rhs) const // difference
{
wxSet<T> s;
s.m_data = m_data ^ rhs.m_data;
return s;
}
wxSet operator *(const wxSet &rhs) const // intersection
{
wxSet<T> s;
s.m_data = m_data & rhs.m_data;
return s;
}
wxSet& Set(const T el) //Add element
{
m_data |= 1 << el;
return *this;
}
wxSet& Clear(const T el) //remove element
{
m_data &= ~(1 << el);
return *this;
}
bool Contains(const T el) const
{
return (m_data & (1 << el)) ? true : false;
}
wxSet &Clear()
{
m_data = 0;
return *this;
}
bool Empty() const
{
return m_data == 0;
}
bool operator ==(const wxSet &rhs) const
{
return m_data == rhs.m_data;
}
bool operator !=(const wxSet &rhs) const
{
return !operator==(rhs);
}
private :
int m_data;
};
#endif