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/*****************************************************************************
* *
* PrimeSense PSCommon Library *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of PSCommon. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
#ifndef _XN_CYCLIC_STACK_T_H_
#define _XN_CYCLIC_STACK_T_H_
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include "XnStackT.h"
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
template<class T, XnUInt32 TDefaultMaxDepth, class TAlloc = XnLinkedNodeDefaultAllocatorT<T> >
class XnCyclicStackT : protected XnStackT<T, TAlloc>
{
public:
typedef XnStackT<T, TAlloc> Base;
XnCyclicStackT(XnUInt32 nMaxDepth = TDefaultMaxDepth) : Base(), m_nMaxDepth(nMaxDepth) {}
XnCyclicStackT(const XnCyclicStackT& other) : Base(other)
{
*this = other;
}
XnCyclicStackT& operator=(const XnCyclicStackT& other)
{
Base::operator=(other);
m_nMaxDepth = other.m_nMaxDepth;
return *this;
}
~XnCyclicStackT() {}
using typename Base::ConstIterator;
using Base::Remove;
using Base::IsEmpty;
using Base::Size;
XnStatus SetMaxSize(XnUInt32 nMaxSize)
{
XnStatus nRetVal = XN_STATUS_OK;
while (Size() > nMaxSize)
{
nRetVal = Remove(this->ReverseBegin());
XN_IS_STATUS_OK(nRetVal);
}
m_nMaxDepth = nMaxSize;
return (XN_STATUS_OK);
}
XnStatus Push(T const& value)
{
XnStatus nRetVal = XN_STATUS_OK;
if (Size() == m_nMaxDepth)
{
nRetVal = Remove(this->ReverseBegin());
XN_IS_STATUS_OK(nRetVal);
}
nRetVal = Base::Push(value);
XN_IS_STATUS_OK(nRetVal);
return (XN_STATUS_OK);
}
using Base::Pop;
using Base::Top;
using Base::Begin;
using Base::End;
protected:
XnUInt32 m_nMaxDepth;
};
#endif // _XN_CYCLIC_STACK_T_H_
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