modelAssigner.h

/* Copyright (c) 2009, Stefan Eilemann <eile@equalizergraphics.com> 
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - Neither the name of Eyescale Software GmbH nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

#ifndef EQ_PLY_MODELASSIGNER_H
#define EQ_PLY_MODELASSIGNER_H

namespace eqPly
{
class ModelAssigner : public eq::ConfigVisitor
{
public:
    ModelAssigner( const ModelDists& models ) 
            : _models( models ), _current( models.begin( )), _layout( 0 ) {}

    virtual eq::VisitorResult visit( eq::View* view )
        {
            const ModelDist* model = *_current;
            static_cast< View* >( view )->setModelID( model->getID( ));

            ++_current;
            if( _current == _models.end( ))
                _current = _models.begin(); // wrap around

            return eq::TRAVERSE_CONTINUE; 
        }

private:
    const ModelDists&          _models;
    ModelDists::const_iterator _current;
    
    eq::Layout* _layout;
};

}
#endif // EQ_PLY_MODELASSIGNER_H