/*******************************************************************************
 * Copyright 2010 Simon Mieth
 * 
 * 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 org.kabeja.entities.util;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.kabeja.common.DraftEntity;
import org.kabeja.entities.Entity;
import org.kabeja.math.Bounds;


/**
 * @author <a href="mailto:simon.mieth@gmx.de>Simon Mieth</a>
 *
 */
public class HatchBoundaryLoop {
    private List edges = new ArrayList();
    private boolean outermost = true;

    /**
     * @return Returns the outermost.
     */
    public boolean isOutermost() {
        return outermost;
    }

    /**
     * @param outermost
     *            The outermost to set.
     */
    public void setOutermost(boolean outermost) {
        this.outermost = outermost;
    }

    public Iterator getBoundaryEdgesIterator() {
        return edges.iterator();
    }

    public void addBoundaryEdge(DraftEntity edge) {
        edges.add(edge);
    }

    public Bounds getBounds() {
        Bounds bounds = new Bounds();

        // System.out.println("edges="+edges.size());
        if (edges.size() > 0) {
            Iterator i = edges.iterator();

            while (i.hasNext()) {
                Entity entity = (Entity) i.next();
                Bounds b = entity.getBounds();

                if (b.isValid()) {
                    bounds.addToBounds(b);
                }
            }

            return bounds;
        } else {
            bounds.setValid(false);

            return bounds;
        }
    }

    public int getEdgeCount() {
        return this.edges.size();
    }
}