/////////////////////////////////////////////////////////////////////////////
// Name: wx/flags.h
-// Purpose: a bitset suited for replacing the current style flags
+// Purpose: a bitset suited for replacing the current style flags
// Author: Stefan Csomor
-// Modified by:
+// Modified by:
// Created: 27/07/03
// RCS-ID: $Id$
// Copyright: (c) 2003 Stefan Csomor
// 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
-// The api is made as close as possible to <bitset>
+// The api is made as close as possible to <bitset>
template <class T> class wxBitset
{
- friend class wxEnumData ;
+ friend class wxEnumData ;
public:
// creates a wxBitset<> object with all flags initialized to 0
wxBitset() { m_data = 0; }
- // created a wxBitset<> object initialized according to the bits of the
+ // created a wxBitset<> object initialized according to the bits of the
// integral value val
wxBitset(unsigned long val) { m_data = val ; }
// assignment
wxBitset &operator =(const wxBitset &rhs)
{
- m_data = rhs.m_data;
- return *this;
+ m_data = rhs.m_data;
+ return *this;
}
// bitwise or operator, sets all bits that are in rhs and leaves
// the rest unchanged
- wxBitset &operator |=(const wxBitset &rhs)
+ wxBitset &operator |=(const wxBitset &rhs)
{
- m_data |= rhs.m_data;
- return *this;
+ m_data |= rhs.m_data;
+ return *this;
}
// bitwsie exclusive-or operator, toggles the value of all bits
// that are set in bits and leaves all others unchanged
wxBitset &operator ^=(const wxBitset &rhs) // difference
{
- m_data ^= rhs.m_data;
- return *this;
+ m_data ^= rhs.m_data;
+ return *this;
}
// bitwise and operator, resets all bits that are not in rhs and leaves
// all others unchanged
wxBitset &operator &=(const wxBitset &rhs) // intersection
{
- m_data &= rhs.m_data;
- return *this;
+ m_data &= rhs.m_data;
+ return *this;
}
- // bitwise or operator, returns a new bitset that has all bits set that set are in
+ // bitwise or operator, returns a new bitset that has all bits set that set are in
// bitset2 or in this bitset
- wxBitset operator |(const wxBitset &bitset2) const // union
+ wxBitset operator |(const wxBitset &bitset2) const // union
{
- wxBitset<T> s;
- s.m_data = m_data | bitset2.m_data;
- return s;
+ wxBitset<T> s;
+ s.m_data = m_data | bitset2.m_data;
+ return s;
}
- // bitwise exclusive-or operator, returns a new bitset that has all bits set that are set either in
+ // bitwise exclusive-or operator, returns a new bitset that has all bits set that are set either in
// bitset2 or in this bitset but not in both
wxBitset operator ^(const wxBitset &bitset2) const // difference
{
- wxBitset<T> s;
- s.m_data = m_data ^ bitset2.m_data;
- return s;
+ wxBitset<T> s;
+ s.m_data = m_data ^ bitset2.m_data;
+ return s;
}
- // bitwise and operator, returns a new bitset that has all bits set that are set both in
+ // bitwise and operator, returns a new bitset that has all bits set that are set both in
// bitset2 and in this bitset
wxBitset operator &(const wxBitset &bitset2) const // intersection
{
- wxBitset<T> s;
- s.m_data = m_data & bitset2.m_data;
- return s;
+ wxBitset<T> s;
+ s.m_data = m_data & bitset2.m_data;
+ return s;
}
// sets appropriate the bit to true
wxBitset& set(const T el) //Add element
{
- m_data |= 1 << el;
- return *this;
+ m_data |= 1 << el;
+ return *this;
}
-
+
// clears the appropriate flag to false
wxBitset& reset(const T el) //remove element
{
- m_data &= ~(1 << el);
- return *this;
+ m_data &= ~(1 << el);
+ return *this;
}
// clear all flags
wxBitset& reset()
{
- m_data = 0;
- return *this;
+ m_data = 0;
+ return *this;
}
// true if this flag is set
bool test(const T el) const
{
- return (m_data & (1 << el)) ? true : false;
+ return (m_data & (1 << el)) ? true : false;
}
// true if no flag is set
bool none() const
{
- return m_data == 0;
+ return m_data == 0;
}
// true if any flag is set
bool any() const
{
- return m_data != 0;
+ return m_data != 0;
}
// true if both have the same flags
bool operator ==(const wxBitset &rhs) const
{
- return m_data == rhs.m_data;
+ return m_data == rhs.m_data;
}
// true if both differ in their flags set
bool operator !=(const wxBitset &rhs) const
{
- return !operator==(rhs);
+ return !operator==(rhs);
}
bool operator[] (const T el) const { return test(el) ; }
private :
- unsigned long m_data;
+ unsigned long m_data;
};
#define WX_DEFINE_FLAGS( flags ) \
- struct flags \
+ class WXDLLEXPORT flags \
{\
- flags(long data=0) :m_data(data) {} \
+ public : \
+ flags(long data=0) :m_data(data) {} \
long m_data ;\
+ bool operator ==(const flags &rhs) const { return m_data == rhs.m_data; }\
} ;
#endif
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