/* $Id: CbcEventHandler.cpp 1573 2011-01-05 01:12:36Z lou $ */
// Copyright (C) 2004, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

// Shamelessly adapted from ClpEventHandler.

#include "CoinPragma.hpp"

#include "CbcEventHandler.hpp"


//#############################################################################
// Constructors / Destructor / Assignment
//#############################################################################

//-------------------------------------------------------------------
// Default Constructor
//-------------------------------------------------------------------

CbcEventHandler::CbcEventHandler (CbcModel *model)
        : model_(model),
        dfltAction_(CbcEventHandler::noAction),
        eaMap_(0)
{  /* nothing more required */ }

//-------------------------------------------------------------------
// Copy constructor
//-------------------------------------------------------------------
/*
  Here we need to clone the event/action map, if it exists
*/
CbcEventHandler::CbcEventHandler (const CbcEventHandler & rhs)
        : model_(rhs.model_),
        dfltAction_(rhs.dfltAction_),
        eaMap_(0)
{
    if (rhs.eaMap_ != 0) {
        eaMap_ = new eaMapPair(*rhs.eaMap_) ;
    }
}

//----------------------------------------------------------------
// Assignment operator
//-------------------------------------------------------------------
CbcEventHandler&
CbcEventHandler::operator=(const CbcEventHandler & rhs)
{
    if (this != &rhs) {
        model_ = rhs.model_ ;
        dfltAction_ = rhs.dfltAction_ ;
        if (rhs.eaMap_ != 0) {
            eaMap_ = new eaMapPair(*rhs.eaMap_) ;
        } else {
            eaMap_ = 0 ;
        }
    }
    return (*this) ;
}

//----------------------------------------------------------------
// Clone
//-------------------------------------------------------------------
CbcEventHandler*
CbcEventHandler::clone() const
{
    return (new CbcEventHandler(*this)) ;
}

//-------------------------------------------------------------------
// Destructor
//-------------------------------------------------------------------
/*
  Take care to free the event/action map.
*/
CbcEventHandler::~CbcEventHandler ()
{
    if (eaMap_ != 0) delete eaMap_ ;
}


//-------------------------------------------------------------------
// event() -- return the action for an event.
//-------------------------------------------------------------------

CbcEventHandler::CbcAction CbcEventHandler::event(CbcEvent event)
/*
  If an event/action map exists and contains an entry for the event, return it.
  Otherwise return the default action.
*/
{
    if (eaMap_ != 0) {
        eaMapPair::iterator entry = eaMap_->find(event) ;
        if (entry != eaMap_->end()) {
            return (entry->second) ;
        } else {
            return (dfltAction_) ;
        }
    } else {
        return (dfltAction_) ;
    }
}