BaseTopology.h

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/******************************************************************************
*       SOFA, Simulation Open-Framework Architecture, version 1.0 beta 3      *
*                (c) 2006-2008 MGH, INRIA, USTL, UJF, CNRS                    *
*                                                                             *
* This library 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 2.1 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 Lesser General Public License *
* for more details.                                                           *
*                                                                             *
* You should have received a copy of the GNU Lesser General Public License    *
* along with this library; if not, write to the Free Software Foundation,     *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.          *
*******************************************************************************
*                              SOFA :: Framework                              *
*                                                                             *
* Authors: M. Adam, J. Allard, B. Andre, P-J. Bensoussan, S. Cotin, C. Duriez,*
* H. Delingette, F. Falipou, F. Faure, S. Fonteneau, L. Heigeas, C. Mendoza,  *
* M. Nesme, P. Neumann, J-P. de la Plata Alcade, F. Poyer and F. Roy          *
*                                                                             *
* Contact information: contact@sofa-framework.org                             *
******************************************************************************/
#ifndef SOFA_CORE_COMPONENTMODEL_TOPOLOGY_BASETOPOLOGY_H
#define SOFA_CORE_COMPONENTMODEL_TOPOLOGY_BASETOPOLOGY_H

#include <sofa/core/componentmodel/topology/BaseMeshTopology.h>
#include <sofa/core/componentmodel/topology/BaseTopologyObject.h>

#include <sofa/helper/vector.h>
#include <list>
#include <string>


namespace sofa
{

namespace core
{

namespace componentmodel
{

namespace topology
{
    using core::componentmodel::topology::BaseMeshTopology;

    // forward declarations:

    class TopologyAlgorithms;

    class GeometryAlgorithms;

    class TopologyModifier;

    class TopologyContainer;

    class TopologicalMapping;


    class TopologyAlgorithms : public sofa::core::componentmodel::topology::BaseTopologyObject
    {
    protected:
        TopologyAlgorithms()
        {}

    public:
        virtual ~TopologyAlgorithms() 
        {}

        virtual void init();

    protected:
        void addTopologyChange(const TopologyChange *topologyChange);

    protected:
        TopologyContainer *m_topologyContainer;
    };

    class GeometryAlgorithms : public sofa::core::componentmodel::topology::BaseTopologyObject
    {
    protected:
        GeometryAlgorithms()
        {}

    public:
        virtual ~GeometryAlgorithms() 
        {}

        virtual void init();
    };

    class TopologyModifier : public sofa::core::componentmodel::topology::BaseTopologyObject
    {
    protected:
        TopologyModifier()
        : m_topologyContainer(NULL)
        { } 

    public:
        virtual ~TopologyModifier() 
        { }

        virtual void init();

        virtual void propagateStateChanges();

        virtual void propagateTopologicalChanges(); 

        virtual void notifyEndingEvent();

        virtual void removeItems(sofa::helper::vector< unsigned int >& /*items*/);

    protected:
        void addTopologyChange(const TopologyChange *topologyChange);

        void addStateChange(const TopologyChange *topologyChange);

    protected:
        TopologyContainer *m_topologyContainer;
    };

    class TopologyContainer : public sofa::core::componentmodel::topology::BaseTopologyObject,
                              public core::componentmodel::topology::BaseMeshTopology
    {
    protected:
        TopologyContainer()
        {}

    public:
        virtual ~TopologyContainer() 
        {}

        virtual void init();

        virtual const SeqEdges& getEdges()         { static SeqEdges     empty; return empty; }
        virtual const SeqTriangles& getTriangles() { static SeqTriangles empty; return empty; }
        virtual const SeqQuads& getQuads()         { static SeqQuads     empty; return empty; }
        virtual const SeqTetras& getTetras()       { static SeqTetras    empty; return empty; }
        virtual const SeqHexas& getHexas()         { static SeqHexas     empty; return empty; }


        const std::list<const TopologyChange *> &getChangeList() const { return m_changeList; }

        const std::list<const TopologyChange *> &getStateChangeList() const { return m_stateChangeList; }

        void addTopologyChange(const TopologyChange *topologyChange) 
        { 
            m_changeList.push_back(topologyChange); 
        }

        void addStateChange(const TopologyChange *topologyChange) 
        {   
            m_stateChangeList.push_back(topologyChange);
        }

        std::list<const TopologyChange *>::const_iterator firstChange() const;

        std::list<const TopologyChange *>::const_iterator lastChange() const;

        std::list<const TopologyChange *>::const_iterator firstStateChange() const;

        std::list<const TopologyChange *>::const_iterator lastStateChange() const;
    

        void resetTopologyChangeList();

        void resetStateChangeList();

    private:
        std::list<const TopologyChange *> m_changeList; 

        std::list<const TopologyChange *> m_stateChangeList; 
    };

} // namespace topology

} // namespace componentmodel

} // namespace core

} // namespace sofa

#endif // SOFA_CORE_BASICTOPOLOGY_H