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110 lines
3.6 KiB
110 lines
3.6 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (c) 1998-1998 Microsoft Corporation
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//
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// File: tlist.h
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//
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//--------------------------------------------------------------------------
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//
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// tlist.h --- template version of AList
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//
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#ifndef __TLIST_H__
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#define __TLIST_H__
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//#include "stdafx.h"
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//template <class T>
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//typedef BOOL (* TRelation) (T, T);
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// TListItem<> contains four more members than AListItem: one additional constructor,
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// a destructor, one member function, and one data member.
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template <class T>
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class TListItem
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{
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public:
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TListItem() { m_pNext=NULL; };
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~TListItem(); // new destructor
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static void Delete(TListItem<T>* pFirst); // new deletion helper
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TListItem(const T& item) { m_Tinfo = item; m_pNext=NULL; }; // additional constructor.
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TListItem<T> *GetNext() const {return m_pNext;};
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void SetNext(TListItem<T> *pNext) {m_pNext=pNext;};
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LONG GetCount() const;
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TListItem<T>* Cat(TListItem<T>* pItem);
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TListItem<T>* AddTail(TListItem<T>* pItem) {return Cat(pItem);};
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TListItem<T>* Remove(TListItem<T>* pItem);
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TListItem<T>* GetPrev(TListItem<T> *pItem) const;
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TListItem<T>* GetItem(LONG index);
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T& GetItemValue() { return m_Tinfo; } // additional member function
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TListItem<T>* MergeSort(BOOL (* fcnCompare) (T&, T&)); // Destructively mergeSorts the list items
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private:
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void Divide(TListItem<T>* &pHalf1, TListItem<T>* &pHalf2);
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TListItem<T>* Merge(TListItem<T>* pOtherList, BOOL (* fcnCompare) (T&, T&));
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T m_Tinfo; // additional data member, but memory is the same since in AListItem
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// you put the extra data member in the derived class
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TListItem<T> *m_pNext;
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};
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// TList<> adds a destructor to AList.
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template <class T>
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class TList
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{
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public:
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TList() {m_pHead=NULL;}
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~TList()
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{
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//if (m_pHead != NULL) delete m_pHead;
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TListItem<T>::Delete(m_pHead);
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} // new destructor
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TListItem<T> *GetHead() const { return m_pHead;};
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void RemoveAll() { m_pHead=NULL;};
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void CleanUp()
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{
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//if (m_pHead) delete m_pHead;
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if (m_pHead) TListItem<T>::Delete(m_pHead);
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m_pHead=NULL;
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}
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LONG GetCount() const {return m_pHead->GetCount();};
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TListItem<T> *GetItem(LONG index) { return m_pHead->GetItem(index);};
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void InsertBefore(TListItem<T> *pItem,TListItem<T> *pInsert);
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void Cat(TListItem<T> *pItem) {m_pHead=m_pHead->Cat(pItem);};
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void Cat(TList<T> *pList)
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{
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// assert(pList!=NULL);
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m_pHead=m_pHead->Cat(pList->GetHead());
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};
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void AddHead(TListItem<T> *pItem)
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{
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// assert(pItem!=NULL);
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pItem->SetNext(m_pHead);
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m_pHead=pItem;
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}
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void AddTail(TListItem<T> *pItem);// {m_pHead=m_pHead->AddTail(pItem);};
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void Remove(TListItem<T> *pItem) {m_pHead=m_pHead->Remove(pItem);};
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TListItem<T> *GetPrev(TListItem<T> *pItem) const {return m_pHead->GetPrev(pItem);};
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TListItem<T> *GetTail() const {return GetPrev(NULL);};
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BOOL IsEmpty(void) const {return (m_pHead==NULL);};
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TListItem<T> *RemoveHead(void)
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{
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TListItem<T> *li;
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li=m_pHead;
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if(m_pHead)
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{
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m_pHead=m_pHead->GetNext();
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li->SetNext(NULL);
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}
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return li;
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}
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void MergeSort(BOOL (* fcnCompare) (T&, T&)); // Destructively mergeSorts the list
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void Reverse(void); // Reverses the entire list
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protected:
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TListItem<T> *m_pHead;
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};
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#include "tlist.cpp"
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#endif // __TLIST_H__
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