Connection.h

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/*
-----------------------------------------------------------------------------
This source file is part of FRAPPER
research.animationsinstitut.de
sourceforge.net/projects/frapper

Copyright (c) 2008-2009 Filmakademie Baden-Wuerttemberg, Institute of Animation 

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; version 2.1 of the License.

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, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
-----------------------------------------------------------------------------
*/


#ifndef CONNECTION_H
#define CONNECTION_H

#include "FrapperPrerequisites.h"
#include <QtCore/QMap>
#include "InstanceCounterMacros.h"

namespace Frapper {

class Parameter;

class Node;


class FRAPPER_CORE_EXPORT Connection : public QObject
{

    Q_OBJECT
        ADD_INSTANCE_COUNTER

public: // type definitions

    typedef unsigned int ID;

    typedef QMap<ID, Connection *> Map;

private: // static data

    static ID s_currentId;

public: // constructors and destructors

    Connection ( Parameter *sourceParameter, Parameter *targetParameter );

    ~Connection ();

public: // functions

    ID getId () const;

    bool hasSource () const;

    Parameter * getSourceParameter () const;

    void setSourceParameter ( Parameter *sourceParameter );

    bool hasTarget () const;

    Parameter * getTargetParameter () const;

    void setTargetParameter ( Parameter *targetParameter );

signals: //

    void destroyed (Connection *connection);

private: // functions

    void updateName ();

private: // attributes

    ID m_id;

    Parameter *m_sourceParameter;

    Parameter *m_targetParameter;

};

} // end namespace Frapper

#endif