OpenNI 1.5.4: XnStackT.h Source File

00001 #ifndef _XN_STACK_T_H_
00002 #define _XN_STACK_T_H_ 
00003 
00004 //---------------------------------------------------------------------------
00005 // Includes
00006 //---------------------------------------------------------------------------
00007 #include "XnListT.h"
00008 
00009 //---------------------------------------------------------------------------
00010 // Code
00011 //---------------------------------------------------------------------------
00012 template<class T, class TAlloc = XnLinkedNodeDefaultAllocatorT<T> >
00013 class XnStackT : protected XnListT<T, TAlloc>
00014 {
00015 public:
00016     typedef XnListT<T, TAlloc> Base;
00017 
00018     typedef typename Base::ConstIterator ConstIterator;
00019 
00020     XnStackT() : Base() {}
00021 
00022     XnStackT(const XnStackT& other) : Base() 
00023     {
00024         *this = other;
00025     }
00026 
00027     XnStackT& operator=(const XnStackT& other)
00028     {
00029         Base::operator=(other);
00030         // no other members
00031         return *this;
00032     }
00033 
00034     ~XnStackT() {}
00035 
00036     XnBool IsEmpty() const { return Base::IsEmpty(); }
00037 
00038     XnStatus Push(T const& value) { return Base::AddFirst(value); }
00039 
00040     XnStatus Pop(T& value)
00041     {
00042         ConstIterator it = Begin();
00043         if (it == End())
00044         {
00045             return XN_STATUS_IS_EMPTY;
00046         }
00047         value = *it;
00048         return Base::Remove(it);
00049     }
00050 
00051     T const& Top() const { return *Begin(); }
00052     T& Top() { return *Begin(); }
00053 
00054     ConstIterator Begin() const { return Base::Begin(); }
00055     ConstIterator End() const { return Base::End(); }
00056 };
00057 
00058 #endif // _XN_STACK_T_H_