edgeList.H

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/**********************************************************************
*  File:            edgeList.H
*
*  Designer:        Willie Glover
*
*  Description:     edgeList defines a list of egde IDs and pointers
*                   into the edge dictionary.  Used by legoRegion.
*
*  12/5/96 WAH: Added copy constructor.
*
**********************************************************************/
#ifndef EDGELIST_H
#define EDGELIST_H

class opEdges;
class edgeList {
  opEdges  *edgePtr;       // pointer into edge dictionary
  int       edgeId;
  int       valid;         // 0 = invalid, 1 = valid
  edgeList *nextListPtr;   //this is pointer to next entry in this regions
                           // edgelist

public:
  edgeList(void)
  {
     edgePtr = NULL;
     edgeId = 0;
     valid = 0;
     nextListPtr = NULL;
     //     fprintf(stderr,"Creating EDGELIST %p\n",this);
  }
  edgeList(const edgeList &orig)
  {
    edgePtr = orig.edgePtr;  // don't duplicate (dictionary)
    edgeId = orig.edgeId;  // will get changed anyway
    valid = orig.valid;
    if (orig.nextListPtr != NULL)
      nextListPtr = new edgeList (*(orig.nextListPtr));
    else
      nextListPtr = NULL;
    //    fprintf(stderr,"Creating EDGELIST %p\n",this);
  } // end copy constructor
  ~edgeList(void)
  {
    edgeList* tmpEdgeListPtr = NULL;
    while (nextListPtr != NULL) {
      tmpEdgeListPtr = nextListPtr;
      nextListPtr = tmpEdgeListPtr->nextListPtr;
      tmpEdgeListPtr->nextListPtr = NULL;
      delete tmpEdgeListPtr;
    }
    //    fprintf(stderr,"Deleting EDGELIST %p\n",this);
  }

/**********************************************************
 * Get edge pointer
 *********************************************************/
  opEdges *GetEdgePtr(void)  { return edgePtr; }

/**********************************************************
 * Get edge ID
 *********************************************************/
  int GetEdgeId(void)  { return edgeId; }

/**********************************************************
 * Get valid field
 *********************************************************/
  int GetValid(void)  { return valid; }

/**********************************************************
 * Get nextListPtr (pointer to next egdeList entry)
 *********************************************************/
  edgeList *GetNextListPtr(void)  { return nextListPtr; }

/**********************************************************
 * Update opEdges pointer
 *********************************************************/
  void SetEdgePtr(opEdges* newEdgePtr)  { edgePtr = newEdgePtr; }

/**********************************************************
 * Update edge ID
 *********************************************************/
  void SetEdgeId(int newEdgeId)  { edgeId = newEdgeId; }

/**********************************************************
 * Update valid
 *********************************************************/
  void SetValid(int newValid)  { valid = newValid; }

/**********************************************************
 * Update nextListPtr (pointer to next edgeList entry)
 *********************************************************/
  void SetNextListPtr(edgeList* newNext)  { nextListPtr = newNext; }

// ---------------------------------------------------------------------------

};
#endif // EDGELIST_H

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