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/***************************************************************************
* Copyright (C) 2004-2005 by Daniel Clarke *
* daniel.jc@gmail.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#ifndef BTREEBASE_H
#define BTREEBASE_H
#include "microbe.h"
#include "btreenode.h"
/**
@short This holds a pointer to the start of the tree, and provides the traversal code.
@author Daniel Clarke
*/
class BTreeBase{
public:
BTreeBase();
~BTreeBase();
/** Return a pointer to the root node of the tree */
BTreeNode *root() const { return m_root; }
/** Set the root node of the tree */
void setRoot(BTreeNode *root){m_root = root; }
/** Link the node into the tree. a.t.m all this really
does it sets the parent/child relationship pointers,
but is used in case something needs to be changed in the future
Added to the left if left == true or the right if left == false */
void addNode(BTreeNode *parent, BTreeNode *node, bool left);
/** Deletes all nodes in tree and zeros pointer to root node */
void deleteTree();
/** Tidies the tree up; merging constants and removing redundant branches */
void pruneTree(BTreeNode *root, bool conditionalRoot = true);
/** Put a node in place of another, linking it correctly into the parent. */
void replaceNode(BTreeNode *node, BTreeNode *replacement);
protected:
BTreeNode *m_root;
};
#endif
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