Atom.cpp

/*
 *  This file is part of esynth.
 *
 *  esynth 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  esynth 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 esynth.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <iostream>
#include <cstring>
#include <string>


#include "AtomT.h"
#include "Atom.h"
#include "ConnectableAtom.h"
#include "LinkerConnectableAtom.h"
#include "RigidConnectableAtom.h"
#include "Utilities.h"


/**********************************************************************************/

Atom::Atom(const Atom& that)
{
    this->atomType = that.atomType;
}

/**********************************************************************************/

Atom::Atom(const std::string& aType) : atomType(AtomT(aType))
{
}

/**********************************************************************************/

Atom::Atom(const AtomT& aType) : atomType(aType)
{
}

/**********************************************************************************/

Atom::~Atom()
{
}

/**********************************************************************************/

//
// Take an atom and produce the smallest representation of the atom possible:
//    (a) Convert a fulfilled molecule to a simple Atom.
//    (b) If an unfilled linker or rigid atom, keep a linker or rigid atom. 
//
Atom* Atom::ConstructAtom(const Atom& that)
{
    // To save space in future iterations, have a global pointer to simple atoms and do not allocate here
    if (that.IsSimple()) return new Atom(that);

    // If there is no more space to conenct to this atom, create a simpler version of the atom.
    if (!that.SpaceToConnect()) return new Atom(that.getAtomType());

    //
    // Determine the type of atom: linker / rigid
    //
    if (that.IsLinkerAtom())
    {
        return new LinkerConnectableAtom(static_cast<const LinkerConnectableAtom* const>(&that));
    }
    else if (that.IsRigidAtom())
    {
        return new RigidConnectableAtom(static_cast<const RigidConnectableAtom* const>(&that));
    }
    else
    {
        throw "Expected rigid or linker atom; neither found.";
    }
}

/**********************************************************************************/

bool Atom::operator==(const Atom& that) const
{
    return this->atomType == that.atomType;
}

/****************************************************************************************/

std::string Atom::toString() const
{
    return atomType.toString();
}

/****************************************************************************************/

std::ostream& operator<< (std::ostream& os, Atom& atom)
{
    os << atom.toString();

    return os;
}

/****************************************************************************************/