Application: gvSIG desktop

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

import com.iver.cit.gvsig.fmap.ViewPort;

import com.iver.cit.gvsig.fmap.tools.Events.RectangleEvent;

import com.iver.cit.gvsig.fmap.tools.Listeners.RectangleListener;

import java.awt.geom.Rectangle2D;

/**

 * DOCUMENT ME!

 *

 * @author Vicente Caballero Navarro

 */

public class ZoomInListenerImpl implements RectangleListener {

    ViewPort vp;

    /**

     * Crea un nuevo RectangleListenerImpl.

     *

     * @param vp DOCUMENT ME!

     */

    public ZoomInListenerImpl(ViewPort vp) {

        this.vp = vp;

    }

    /**

     * DOCUMENT ME!

     *

     * @param event DOCUMENT ME!

     */

    public void rectangle(RectangleEvent event) {

        Rectangle2D rect = event.getRect();

        Rectangle2D.Double r = new Rectangle2D.Double();

        if (rect.getWidth() < 3) {

            double factor = 0.6;

            double nuevoX = rect.getMaxX() -

                ((vp.getExtent().getWidth() * factor) / 2.0);

            double nuevoY = rect.getMaxY() -

                ((vp.getExtent().getHeight() * factor) / 2.0);

            r.x = nuevoX;

            r.y = nuevoY;

            r.width = vp.getExtent().getWidth() * factor;

            r.height = vp.getExtent().getHeight() * factor;

            vp.setExtent(r);

        } else {

            vp.setExtent(event.getRect());

        }

    }

}