/*
* Copyright 2000-2006 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.communicator.util;
import javax.swing.*;
import javax.swing.tree.TreeNode;
import java.awt.*;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
/**
* @author Kir
*/
public abstract class KirTreeNode implements TreeNode {
private final TreeNode myParent;
protected KirTreeNode(TreeNode parent) {
myParent = parent;
}
protected abstract List getChildNodes();
protected abstract Component renderIn(JLabel label, boolean selected, boolean hasFocus);
public int getChildCount() {
return getChildNodes().size();
}
public boolean getAllowsChildren() {
return getChildCount() > 0;
}
public boolean isLeaf() {
return getChildCount() == 0;
}
public Enumeration children() {
return Collections.enumeration(getChildNodes());
}
public TreeNode getParent() {
return myParent;
}
public TreeNode getChildAt(int childIndex) {
return (TreeNode) getChildNodes().get(childIndex);
}
public int getIndex(TreeNode node) {
throw new UnsupportedOperationException("Not implemented in " + getClass().getName());
}
}