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/*

 * Created on 25-nov-2004

 *

 * TODO To change the template for this generated file go to

 * Window - Preferences - Java - Code Generation - Code and Comments

 */

package com.iver.cit.gvsig.fmap.core;

import java.awt.geom.AffineTransform;

import java.awt.geom.PathIterator;

import java.awt.geom.Point2D;

/**

 * (Sacado de GT2)

 *

 * @author FJP

 */

public class FPointIterator implements PathIterator {

        /** Transform applied on the coordinates during iteration */

        private AffineTransform at;

        /** The point we are going to provide when asked for coordinates */

        private Point2D p;

        /** True when the point has been read once */

        private boolean done;

        /**

         * Creates a new PointIterator object.

         *

         * @param p The polygon

         * @param at The affine transform applied to coordinates during iteration

         */

        public FPointIterator(Point2D p, AffineTransform at) {

                if (at == null) {

                        at = new AffineTransform();

                }

                this.at = at;

                this.p = p;

                done = false;

        }

        /**

         * Return the winding rule for determining the interior of the path.

         *

         * @return <code>WIND_EVEN_ODD</code> by default.

         */

        public int getWindingRule() {

                return PathIterator.WIND_EVEN_ODD;

        }

        /**

         * @see java.awt.geom.PathIterator#next()

         */

        public void next() {

                done = true;

        }

        /**

         * @see java.awt.geom.PathIterator#isDone()

         */

        public boolean isDone() {

                return done;

        }

        /**

         * @see java.awt.geom.PathIterator#currentSegment(double[])

         */

        public int currentSegment(double[] coords) {

                coords[0] = p.getX();

                coords[1] = p.getY();

                at.transform(coords, 0, coords, 0, 1);

                return PathIterator.SEG_MOVETO;

        }

        /* (non-Javadoc)

         * @see java.awt.geom.PathIterator#currentSegment(float[])

         */

        public int currentSegment(float[] coords) {

                coords[0] = (float) p.getX();

                coords[1] = (float) p.getY();

                at.transform(coords, 0, coords, 0, 1);

                return PathIterator.SEG_MOVETO;

        }

}