EdgeCondition.cpp

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/***************************************************************************
  tag: Peter Soetens  Mon May 10 19:10:37 CEST 2004  EdgeCondition.cxx

                        EdgeCondition.cxx -  description
                           -------------------
    begin                : Mon May 10 2004
    copyright            : (C) 2004 Peter Soetens
    email                : peter.soetens@mech.kuleuven.ac.be

 ***************************************************************************
 *   This library 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;                 *
 *   version 2 of the License.                                             *
 *                                                                         *
 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
 *   file, or you compile this file and link it with other files to        *
 *   produce an executable, this file does not by itself cause the         *
 *   resulting executable to be covered by the GNU General Public          *
 *   License.  This exception does not however invalidate any other        *
 *   reasons why the executable file might be covered by the GNU General   *
 *   Public License.                                                       *
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 *   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.                       *
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 *   Foundation, Inc., 59 Temple Place,                                    *
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 ***************************************************************************/
#include "EdgeCondition.hpp"
#include "ConditionTrue.hpp"
#include "ConditionInterface.hpp"
#include "../internal/DataSource.hpp"

namespace RTT {
    using namespace detail;


    int EdgeCondition::condition_counter = 0;

    EdgeCondition::EdgeCondition()
        : condition ( new ConditionTrue ), rank(condition_counter++) {}

        EdgeCondition::EdgeCondition(ConditionInterface* cond )
        : condition( cond ), rank(condition_counter++)
        {
        }

        EdgeCondition::~EdgeCondition()
        {
                delete condition;
    }

    void EdgeCondition::setCondition(ConditionInterface* cond)
        {
        delete condition;
                condition = cond;
        }

        bool EdgeCondition::evaluate()
        {
                return condition->evaluate();
        }

        ConditionInterface* EdgeCondition::getCondition() const
        {
                return condition;
        }

    void EdgeCondition::reset()
    {
        condition->reset();
    }

    EdgeCondition::EdgeCondition( const EdgeCondition& orig )
        : condition( orig.getCondition()->clone() ), rank( orig.getRank() )
    {
    }

    EdgeCondition EdgeCondition::copy( std::map<const DataSourceBase*, DataSourceBase*>& replacementdss ) const {
        // copy to set the rank right :
        EdgeCondition ret( *this );
        ret.setCondition( this->getCondition()->copy( replacementdss ) );
        return ret;
    }

    EdgeCondition& EdgeCondition::operator=( const EdgeCondition& orig )
    {
        if ( &orig == this )
            return *this;
        delete condition;
        condition = orig.getCondition()->clone();
        rank = orig.getRank();
        return *this;
    }
}