二叉查找树的基类实现（四）

下面是树的节点数据类型的实现

这里节点的成员数据域全部使用指针变量

BinaryTreeNode.h 文件

//此类为二叉查找树的树节点类  
//定义的关键子，值，父节点和儿子节点 
#ifndef BINARY_TREE_NODE_H
#define BINARY_TREE_NODE_H
#include "objectclass.h"//通用类
class BinaryTreeNode
{
private:
	ObjectClass *theKey;//关键字
	ObjectClass *theValue;//值
	BinaryTreeNode *parent;//父亲节点
	BinaryTreeNode *left;//左儿子
	BinaryTreeNode *right;//右儿子

	//定义左右子树的宽度以便打印
	int leftWidth;
	int rightWidth;

	//定义当前节点应该输出的位子，从左起点到右的宽度
	int leftOutPutLen;
public:
	BinaryTreeNode();
	BinaryTreeNode(ObjectClass *theKey,ObjectClass *theValue);

	ObjectClass *getKey();
	ObjectClass *getValue();
	BinaryTreeNode *getLeft();
	BinaryTreeNode *getRight();
	BinaryTreeNode *getParent();
	int getLeftWidth();
	int getRightWidth();
	int getLeftOutPutLen();

	void setKey(ObjectClass *theKey);
	void setValue(ObjectClass *theValue);	
	void setLeft(BinaryTreeNode *left);
	void setRight(BinaryTreeNode *Right);
	void setParent(BinaryTreeNode *parent);
	void setWidth(int,int);//设置子树宽度
	void setLeftOutPutLen(int len);
};
#endif

BinaryTreeNode.cpp 文件

#include "BinaryTreeNode.h"
BinaryTreeNode::BinaryTreeNode()
{
	theKey = NULL;
	theValue = NULL;
	parent = NULL;
	left = NULL;
	right = NULL;
	leftWidth=0;
	rightWidth=0;
	leftOutPutLen=0;
}

BinaryTreeNode::BinaryTreeNode(ObjectClass *theKey,ObjectClass *theValue)
{
	this->theKey = theKey;
	this->theValue = theValue;
	parent = NULL;
	left = NULL;
	right = NULL;
	leftWidth=0;
	rightWidth=0;
	leftOutPutLen=0;
}
int BinaryTreeNode::getLeftWidth()
{
	return leftWidth;
}

int BinaryTreeNode::getRightWidth()
{
	return rightWidth;
}

ObjectClass *BinaryTreeNode::getKey()
{
	return theKey;
}

ObjectClass *BinaryTreeNode::getValue()
{
	return theValue;
}

BinaryTreeNode *BinaryTreeNode::getLeft()
{
	return left;
}

BinaryTreeNode *BinaryTreeNode::getRight()
{
	return right;
}

BinaryTreeNode *BinaryTreeNode::getParent()
{
	return parent;
}

void BinaryTreeNode::setWidth(int leftWidth, int rightWidth)
{
	this->leftWidth=leftWidth;
	this->rightWidth=rightWidth;
}

void BinaryTreeNode::setValue(ObjectClass *theValue)
{
	this->theValue = theValue;
}

void BinaryTreeNode::setKey(ObjectClass *theKey)
{
	this->theKey = theKey;
}

void BinaryTreeNode::setLeft(BinaryTreeNode *left)
{
	this->left = left;
}

void BinaryTreeNode::setRight(BinaryTreeNode *right)
{
	this->right = right;
}

void BinaryTreeNode::setParent(BinaryTreeNode *parent)
{
	this->parent=parent;
}
int BinaryTreeNode::getLeftOutPutLen()
{
	return leftOutPutLen;
}
void BinaryTreeNode::setLeftOutPutLen(int len)
{
	this->leftOutPutLen = len;
}