143 lines
2.3 KiB
C++
143 lines
2.3 KiB
C++
//-------------------------------------------------------------------------------------------------------+
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// Copyright (C), 1998-2007, SH Software Co. Ltd.
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// = FileName : PDListStack 模板类
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// = Version : ver2.0
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// = Author : zjq
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// = CreateDate : 2002-09-09
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// = Description: PDListStack 声明 基于双向指针链表的堆栈，内存外部分配，外部释放，也可自动清理
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// = Maintainers:
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//
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//-------------------------------------------------------------------------------------------------------+
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#ifndef _PDLISTSTACK_H_
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#define _PDLISTSTACK_H_
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#ifndef _STACK_H_
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#include "Stack.h"
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#endif
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#ifndef _PDLIST_H_
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#include "PDList.h"
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#endif
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template<class T> class PDListStack: public Stack<T*>
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{
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public:
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PDListStack(long depth=-1);
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virtual ~PDListStack();
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virtual bool Pop(T*& t);
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virtual bool Push(T* const& t);
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virtual void Clear();
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bool GetTopData(T& t);
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virtual bool GetTopData(T*& t);
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virtual long GetDepth();
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virtual T*& operator[](long i);
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virtual void GoBack();
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virtual void GoAhead();
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protected:
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PDList<T> list;
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};
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template<class T>
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PDListStack<T>::~PDListStack()
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{
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}
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template<class T>
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T*& PDListStack<T>::operator[](long i)
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{
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return list[i];
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}
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template<class T>
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PDListStack<T>::PDListStack(long depth):Stack<T*>(depth)
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{
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}
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template<class T>
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bool PDListStack<T>::Push(T* const& t)
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{
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if(this->IsDepthLimited() && GetDepth() >= this->maxDepth)
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{
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return false;
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}
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list[list.GetCur()+1] = t;
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this->oldDepth = GetDepth();
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return true;
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}
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template<class T>
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bool PDListStack<T>::Pop(T*& t)
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{
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if(this->IsEmpty())
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{
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return false;
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}
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t = list.GetCurData();
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list.SetCurData(NULL);
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list.DelCur();
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this->oldDepth = GetDepth();
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return true;
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}
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template<class T>
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bool PDListStack<T>::GetTopData(T*& t)
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{
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if(this->IsEmpty())
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{
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return false;
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}
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t = list.GetCurData();
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return true;
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}
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template<class T>
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bool PDListStack<T>::GetTopData(T& t)
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{
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if(this->IsEmpty())
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{
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return false;
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}
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t = *(list.GetCurData());
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return true;
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}
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template<class T>
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void PDListStack<T>::Clear()
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{
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list.Clear();
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this->oldDepth = 0;
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}
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template<class T>
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long PDListStack<T>::GetDepth()
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{
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return list.GetCur()+1;
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}
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template<class T>
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void PDListStack<T>::GoBack()
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{
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if(this->CanGoBack())
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{
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list.MoveToPre();
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}
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}
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template<class T>
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void PDListStack<T>::GoAhead()
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{
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if(this->CanGoAhead())
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{
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list.MoveToNext();
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}
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}
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#endif
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