shells/materials/MaterialContainer.h

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// -*- C++ -*- 
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
//                                   Fehmi Cirak
//                        California Institute of Technology
//                           (C) 2005 All Rights Reserved
//
// <LicenseText>
//
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
#ifndef MATERIALCONTAINER_H
#define MATERIALCONTAINER_H

#include <vector>
#include <cassert>
#include <iosfwd>


namespace shells {
    class MaterialContainer;
    class MaterialBase;
}


class shells::MaterialContainer {
public:
    // this is a singleton class
    static MaterialContainer * instance();
    void destroy();
    
    void readMaterialStream(std::istream &is);
    void printMaterialStream(std::ostream &os);

    void addMaterial(MaterialBase *mat) {
        _materials.push_back(mat);
    }

    // acessor
    MaterialBase* getMaterial(unsigned i) const {
        assert(i<_materials.size());
        return _materials[i];
    }
    
// this is a singleton class
private:
    MaterialContainer(){};
    ~MaterialContainer(){};
    static MaterialContainer *_instance;

// copy constructor and assignment operator
private:
    MaterialContainer (const MaterialContainer &);
    const MaterialContainer & operator=(const MaterialContainer &);

private:
    typedef std::vector<MaterialBase *>    _MaterialCont;
    typedef _MaterialCont::iterator        _MaterialIt;

    _MaterialCont                          _materials;
};

#endif

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