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package org.graalvm.visualvm.lib.ui.memory;

import org.graalvm.visualvm.lib.jfluid.results.memory.*;
import javax.swing.tree.*;


/**
 * Implementation of TreeModel for Memory CCT Trees
 *
 * @author Misha Dmitriev
 * @author Jiri Sedlacek
 */
public class MemoryCCTTreeModel implements TreeModel {
    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    private PresoObjAllocCCTNode root;

    //~ Constructors -------------------------------------------------------------------------------------------------------------

    /** Creates a new instance of MemoryCCTTreeModel */
    public MemoryCCTTreeModel(PresoObjAllocCCTNode root) {
        this.root = root;
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public Object getChild(Object obj, int index) {
        if (obj == null) {
            return null;
        }

        PresoObjAllocCCTNode node = (PresoObjAllocCCTNode) obj;

        return node.getChild(index);
    }

    public int getChildCount(Object obj) {
        if (obj == null) {
            return -1;
        }

        PresoObjAllocCCTNode node = (PresoObjAllocCCTNode) obj;

        return node.getNChildren();
    }

    public int getIndexOfChild(Object parentObj, Object childObj) {
        if ((parentObj == null) || (childObj == null)) {
            return -1;
        }

        PresoObjAllocCCTNode parent = (PresoObjAllocCCTNode) parentObj;
        PresoObjAllocCCTNode child = (PresoObjAllocCCTNode) childObj;

        return parent.getIndexOfChild(child);
    }

    public boolean isLeaf(Object obj) {
        if (obj == null) {
            return true;
        }

        PresoObjAllocCCTNode node = (PresoObjAllocCCTNode) obj;

        return (node.getNChildren() == 0);
    }

    public Object getRoot() {
        return root;
    }

    public void addTreeModelListener(javax.swing.event.TreeModelListener treeModelListener) {
    }

    public void removeTreeModelListener(javax.swing.event.TreeModelListener treeModelListener) {
    }

    // --------------------------------------------------------------  

    // TreeModel interface methods that we don't implement
    public void valueForPathChanged(javax.swing.tree.TreePath treePath, Object obj) {
    }
}
