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//
// VMime library (http://vmime.sourceforge.net)
// Copyright (C) 2002-2004 Vincent Richard <[email protected]>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program 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
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
#ifndef VMIME_TYPEADAPTER_HPP_INCLUDED
#define VMIME_TYPEADAPTER_HPP_INCLUDED
#include <sstream>
#include "component.hpp"
namespace vmime
{
/** An adapter to allow any type being treated as a 'component'.
*/
template <class TYPE>
class typeAdapter : public component
{
public:
typeAdapter()
{
}
typeAdapter(typeAdapter& a)
: m_value(a.m_value)
{
}
typeAdapter(const TYPE& v)
: m_value(v)
{
}
typeAdapter* clone() const
{
return new typeAdapter(*this);
}
void copyFrom(const component& other)
{
m_value = dynamic_cast <const typeAdapter <TYPE>&>(other).m_value;
}
typeAdapter& operator=(const TYPE& v)
{
m_value = v;
return (*this);
}
typeAdapter& operator=(const component& other)
{
copyFrom(other);
return (*this);
}
operator TYPE() const
{
return (m_value);
}
void parse(const string& buffer, const string::size_type position,
const string::size_type end, string::size_type* newPosition = NULL)
{
std::istringstream iss(string(buffer.begin() + position, buffer.begin() + end));
iss >> m_value;
if (newPosition)
*newPosition = end;
}
void generate(utility::outputStream& os,
const string::size_type /* maxLineLength */ = lineLengthLimits::infinite,
const string::size_type curLinePos = 0,
string::size_type* newLinePos = NULL) const
{
std::ostringstream oss;
oss << m_value;
os << oss.str();
if (newLinePos)
*newLinePos = curLinePos + oss.str().length();
}
const std::vector <const component*> getChildComponents() const
{
return std::vector <const component*>();
}
private:
TYPE m_value;
};
template <>
void typeAdapter <string>::parse(const string& buffer, const string::size_type position,
const string::size_type end, string::size_type* newPosition);
} // vmime
#endif // VMIME_TYPEADAPTE_HPP_INCLUDED
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