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//
// Copyright 2012 Josh Blum
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#ifndef INCLUDED_GRAS_ELEMENT_HPP
#define INCLUDED_GRAS_ELEMENT_HPP
#include <gras/gras.hpp>
#include <gras/io_signature.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
namespace gras
{
class ElementImpl;
struct GRAS_API Element : boost::shared_ptr<ElementImpl>, boost::enable_shared_from_this<Element>
{
//! Create an empty element
Element(void);
//! Creates a new element given the name
Element(const std::string &name);
/*!
* Create an element from a shared pointer to an element.
* Good for that factory function/shared ptr paradigm.
*/
template <typename T>
Element(const boost::shared_ptr<T> &elem)
{
*this = elem->shared_to_element();
}
//! Convert a shared ptr of a derived class to an Element
Element &shared_to_element(void);
//! for internal use only
boost::weak_ptr<Element> weak_self;
//! An integer ID that is unique across the process
long unique_id(void) const;
//! Get the name of this element
std::string name(void) const;
//! get a canonical name for this element
std::string to_string(void) const;
void set_output_signature(const gras::IOSignature &sig);
void set_input_signature(const gras::IOSignature &sig);
const gras::IOSignature &input_signature(void) const;
const gras::IOSignature &output_signature(void) const;
};
} //namespace gras
#endif /*INCLUDED_GRAS_ELEMENT_HPP*/
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