// ListIteratorOfListOfCPoint3D.cpp: implementation of the CListIteratorOfListOfCPoint3D class. // ////////////////////////////////////////////////////////////////////// #include "stdafx.h" #include "ListIteratorOfListOfCPoint3D.h" #include "ListException.h" #include "MMath.h" ////////////////////////////////////////////////////////////////////// // Construction/Destruction ////////////////////////////////////////////////////////////////////// CListIteratorOfListOfCPoint3D::CListIteratorOfListOfCPoint3D(CListOfCPoint3D* aList) : theList(aList) { } CListIteratorOfListOfCPoint3D::~CListIteratorOfListOfCPoint3D() { } void CListIteratorOfListOfCPoint3D::SetList(CListOfCPoint3D* aList) { theList = aList; } void CListIteratorOfListOfCPoint3D::Init() { curPtr = theList->firstPtr; } bool CListIteratorOfListOfCPoint3D::More() const { return (curPtr != 0); } void CListIteratorOfListOfCPoint3D::Next() { curPtr = (curPtr) ? curPtr->nextPtr : 0; } CPoint3D CListIteratorOfListOfCPoint3D::Current() const { return (curPtr) ? curPtr->data : CPoint3D(); } CPoint3D CListIteratorOfListOfCPoint3D::ValueAt(const int index) { int cnt =0; Init(); while(curPtr != 0) { Next(); cnt++; } if(cnt < index) throw CListException(LIST_BOUND_UPPER); else if(index<1) throw CListException(LIST_BOUND_LOWER); /*else*/ if(index ==1 ) return theList->firstPtr->data; else { Init(); for(int i=1; i < index; i++) { if(curPtr->nextPtr == 0) break; Next(); } return curPtr->data; } }
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