Show kconstant.h syntax highlighted
/*
Copyright (C) 2003, 2004, 2005 by Luca Cappa
Written by Luca Cappa groton@users.sourceforge.net
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
//??#define KAS_OLD_WAY
#ifndef __KCONSTANT_H__
#define __KCONSTANT_H__
#include "csutil/util.h"
template<class T>
class KConstant
{
protected:
mutable csString m_name;
KConstant (const char* p_name)
{
m_name = csString (p_name);
};
#ifdef KAS_OLD_WAY
static const T* s_idArray;
static size_t s_idArraySize;
void SetWholeArray (T* const p_values, size_t p_num)
{
s_idArraySize = p_num;
s_idArray = new T [s_idArraySize];
size_t i;
for (i = 0; i < s_idArraySize; i++)
s_idArray[i] = p_values[i];
}
#else // KAS_OLD_WAY
static const T s_idArray[];
#endif // KAS_OLD_WAY
public:
KConstant ()
{
*this = INVALID;
};
virtual ~KConstant ()
{
};
void Assign (const KConstant<T>& p_o2) const
{
m_name = csStrNew (p_o2.m_name);
}
/**
Remember that the assigment operator is never inherited by a derived class.
So redefine it in every subclass of this class, or use the Assign() method.
*/
void operator= (const KConstant<T>& p_o2) const
{
m_name = csStrNew (p_o2.m_name);
}
bool operator== (const T& p_o2) const
{
return !strcmp (m_name, p_o2.m_name);
}
bool operator!= (const T& p_o2) const
{
return strcmp (m_name, p_o2.m_name);
}
void SetName (const char* p_name) const
{
m_name = csString (p_name);
}
const char* GetName() const
{
return m_name.GetData ();
}
static const T& GetByName (const char* p_name)
{
size_t i;
#ifdef KAS_OLD_WAY
for (i = 0; i < s_idArraySize; i++)
#else // KAS_OLD_WAY
for (i = 0; i < 10/*sizeof (s_idArray) / sizeof (*s_idArray)*/; i++)
#endif // KAS_OLD_WAY
{
if (s_idArray[i].m_name.Compare (p_name))
return s_idArray[i];
}//for
return T::INVALID;
}
operator char const* () const
{
return GetName ();
}
static const T INVALID;
};
template<class T> const T KConstant<T>::INVALID = T("INVALID");
class Prova : public KConstant<Prova>
{
friend class KConstant<Prova>;
protected:
Prova::Prova (const char* p_name) : KConstant<Prova> (p_name)
{
}
public:
Prova () : KConstant<Prova> ()
{
}
Prova const & operator= (const Prova& p_t2) const
{
SetName (p_t2.m_name);
return *this;
}
static const Prova Prova::A;
static const Prova Prova::B;
};
#endif // __KCONSTANT_H__
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