#include "stdafx.h"
#include "VisList.h"
//------------------------------------------------------------------------
//
//  VisList.cpp
//  
//  This class wraps a CList, addining a few extra methods, to manage a list
//  of CVisInterface pointers.
//
//   -------------------------------------------------------------------
//  * COPYRIGHT 2001, Greg Ratajik and Ratajik Software                 *
//  * All rights Reserved                                               *
//   -------------------------------------------------------------------
//
//  This program 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; either version 2
//  of the License, or (at your option) any later version.
//  
//  This program 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 General Public License for more details.
//  
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
//  More information about this program can be found at:
//          http://www.ratajik.com/VisInterface

//                            C H A N G E    L O G                           
// =====================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development
//------------------------------------------------------------------------

//------------------------------------------------------------------------
//                                                                           
//      Method: operator+=
//                                                                           
// Description: Add the passed pointer to the list.
//              if it's a valid vis.
//
//       Parms: CVisInterface * - The pointer to add.
//
//      Return: void
//
//  Exceptions: N/A
//
//                            C H A N G E    L O G                           
// =====================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development
//_________________________________________________________________________
void CVisList :: operator += (CVisInterface * pNewVis)
{
    AddHead(pNewVis);
}

//------------------------------------------------------------------------
//                                                                           
//      Method: operator-=
//                                                                           
// Description: Remove the passed pointer to the list.
//              if it's a valid vis.
//
//       Parms: CVisInterface * - The pointer to remove.
//
//      Return: void
//
//  Exceptions: N/A
//
//                            C H A N G E    L O G                           
// =====================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development
//_________________________________________________________________________
void CVisList :: operator -= (CVisInterface * pOldVis)
{
    for (POSITION posIt = GetHeadPosition(); posIt != NULL; GetNext(posIt))
    {			
        CVisInterface* pVis = GetAt(posIt);
        
        ASSERT(pVis != NULL); // Something bad is up if this is hit.
        
        if(pVis == pOldVis)
        {
            RemoveAt(posIt);
            return;
        }			
    }
    
}

//------------------------------------------------------------------------
//                                                                           
//      Method: RemoveAll
//                                                                           
// Description: Will go through the list, deleting each pointer, then will
//              delete the list.
//
//       Parms: N/A
//
//      Return: void
//
//  Exceptions: N/A
//
//                            C H A N G E    L O G                           
// =====================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development
//_________________________________________________________________________
void CVisList :: RemoveAll()
{				
    for (POSITION posIt = GetHeadPosition(); posIt != NULL; GetNext(posIt))
    {			
        CVisInterface* pVis = GetAt(posIt);
        
        ASSERT(pVis != NULL); // Something bad is up if this is hit.
        
        if(pVis)
        {
            delete pVis, pVis = NULL;
        }			
    }
    CList<CVisInterface *, CVisInterface *>::RemoveAll();
    
}

//------------------------------------------------------------------------
//                                                                           
//      Method: Find
//                                                                           
// Description: Find the passed pointers place in the list.
//
//       Parms: CVisInterface * - The pointer to find.
//
//      Return: POSITION - The position (NULL if not found)
//
//  Exceptions: N/A
//
//                            C H A N G E    L O G                           
// =====================================================================
// Change ID    Date        Programmer  Description                                      
// ============ =========   =========== ================================
//              02-21-01    Ratajik     Initial Development
//_________________________________________________________________________
POSITION CVisList :: Find(CVisInterface* pVisFind)
{                
    for (POSITION posIt = GetHeadPosition(); posIt != NULL; GetNext(posIt))
    {
        
        CVisInterface *pVis = GetAt(posIt);
        
        ASSERT(pVis != NULL);
        
        if(pVis)
        {
            if(pVis == pVisFind)
                return(posIt);
        }
        
    }
    return(NULL);        
}