/*
 Copyright (c) 2009-2013 Olivier Chafik, All Rights Reserved
	
 This file is part of JNAerator (http://jnaerator.googlecode.com/).
	
 JNAerator is free software: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
	
 JNAerator 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 Lesser General Public License for more details.
	
 You should have received a copy of the GNU Lesser General Public License
 along with JNAerator.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.ochafik.lang.jnaerator.studio;

import java.util.Enumeration;
import java.util.List;

import javax.swing.tree.TreeNode;

import com.ochafik.util.IteratorEnumeration;

abstract class AbstractNode implements TreeNode {

    protected final String name;
    protected final TreeNode parent;
    protected List<TreeNode> children;

    public AbstractNode(TreeNode parent, String name) {
        this.name = name;
        this.parent = parent;
    }

    @SuppressWarnings("unchecked")
    @Override
    public Enumeration children() {
        buildChildren();
        return new IteratorEnumeration(children.iterator());
    }

    @Override
    public boolean getAllowsChildren() {
        buildChildren();
        return !children.isEmpty();
    }

    @Override
    public TreeNode getChildAt(int childIndex) {
        buildChildren();
        return children.get(childIndex);
    }

    @Override
    public int getChildCount() {
        buildChildren();
        return children.size();
    }

    @Override
    public int getIndex(TreeNode node) {
        buildChildren();
        return children.indexOf(node);
    }

    @Override
    public TreeNode getParent() {
        return parent;
    }

    @Override
    public boolean isLeaf() {
        buildChildren();
        return children.isEmpty();
    }

    public abstract void buildChildren();

    @Override
    public String toString() {
        return name;
    }

    public abstract String getContent();
}