| gvSIG desktop 1

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

import com.iver.cit.gvsig.fmap.core.GeneralPathX;

import com.iver.cit.gvsig.fmap.tools.BehaviorException;

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

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

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

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Point;

import java.awt.event.MouseEvent;

import java.util.ArrayList;

/**

 * Medici?n de distancias.

 *

 * @author Vicente Caballero Navarro

 */

public class MeasureMapTool extends MapTool {

        protected ArrayList arrayX = new ArrayList();

        protected ArrayList arrayY = new ArrayList();

        protected boolean isClicked = false;

        protected MeasureListener listener;

        /**

         * DOCUMENT ME!

         *

         * @param mli

         */

        public MeasureMapTool(MeasureListener mli) {

                listener = mli;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.tools.Behavior.MapTool#paintComponent(java.awt.Graphics)

         */

        public void paintComponent(Graphics g) {

                g.drawImage(getMapControl().getImage(), 0, 0, null);

                g.setColor(Color.black);

                if (!arrayX.isEmpty()) {

                        drawPolyLine((Graphics2D) g);

                }

        }

        /**

         * Reimplementaci?n del m?todo mousePressed de MapTool.

         *

         * @param E MouseEvent

         *

         * @throws BehaviorException Excepci?n lanzada cuando el Maptool.

         */

        public void mousePressed(MouseEvent E) throws BehaviorException {

                if (E.getClickCount() == 2) {

                        //System.err.println("dobleclick");

                        listener.polylineFinished(new MeasureEvent(

                                        (Double[]) arrayX.toArray(new Double[0]),

                                        (Double[]) arrayY.toArray(new Double[0]), E));

                        arrayX.clear();

                        arrayY.clear();

                        isClicked = false;

                } else {

                        //System.err.println("simpleclick");

                        isClicked = true;

                        addPoint(E.getPoint());

                        if (arrayX.size() < 2) {

                                addPoint(E.getPoint());

                        }

                        listener.pointFixed(new MeasureEvent(

                                        (Double[]) arrayX.toArray(new Double[0]),

                                        (Double[]) arrayY.toArray(new Double[0]), E));

                }

        }

        /**

         * Reimplementaci?n del m?todo mouseDragged de MapTool.

         *

         * @param e MouseEvent

         *

         * @throws BehaviorException Excepci?n lanzada cuando el Maptool.

         */

        public void mouseDragged(MouseEvent e) throws BehaviorException {

                mouseMoved(e);

        }

        /**

         * Cambio del ?ltimo punto.

         *

         * @param p punto.

         */

        protected void changeLastPoint(Point p) {

                arrayX.set(arrayX.size() - 1, new Double(p.getX()));

                arrayY.set(arrayY.size() - 1, new Double(p.getY()));

        }

        /**

         * DOCUMENT ME!

         *

         * @param E DOCUMENT ME!

         *

         * @throws BehaviorException

         */

        public void mouseMoved(MouseEvent E) throws BehaviorException {

                //System.err.println("moved antes de click");

                if (isClicked) {

                        //System.err.println("moved despues de click");

                        changeLastPoint(E.getPoint());

                        MeasureEvent event = new MeasureEvent((Double[]) arrayX.toArray(

                                                new Double[0]),

                                        (Double[]) arrayY.toArray(new Double[0]), E);

                        listener.points(event);

                        getMapControl().repaint();

                }

        }

        /**

         * Dibujo de la polil?nea.

         *

         * @param g2 Graphics2D sobre el que dibujamos.

         */

        protected void drawPolyLine(Graphics2D g2) {

                GeneralPathX polyline = new GeneralPathX(GeneralPathX.WIND_EVEN_ODD,

                                arrayX.size());

                polyline.moveTo(((Double) arrayX.get(0)).doubleValue(),

                        ((Double) arrayY.get(0)).doubleValue());

                for (int index = 1; index < arrayX.size(); index++) {

                        polyline.lineTo(((Double) arrayX.get(index)).doubleValue(),

                                ((Double) arrayY.get(index)).doubleValue());

                }

                g2.draw(polyline);

        }

        /**

         * A?ade un punto a la polil?nea.

         *

         * @param p Punto.

         */

        protected void addPoint(Point p) {

                arrayX.add(new Double(p.x));

                arrayY.add(new Double(p.y));

        }

        /**

         * @see com.iver.cit.gvsig.fmap.tools.Behavior.MapTool#setListener(com.iver.cit.gvsig.fmap.tools.ToolListener)

         */

        public void setListener(ToolListener listener) {

                this.listener = (MeasureListener) listener;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.tools.Behavior.MapTool#getListener()

         */

        public ToolListener getListener() {

                return listener;

        }

}