Application: gvSIG desktop » gvSIG Document Layout

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.app.project.documents.layout.tools.behavior;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Point;

import java.awt.Rectangle;

import java.awt.event.MouseEvent;

import java.awt.geom.AffineTransform;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import org.gvsig.app.project.documents.layout.FLayoutUtilities;

import org.gvsig.app.project.documents.layout.fframes.IFFrame;

import org.gvsig.app.project.documents.layout.tools.listener.LayoutRectangleListener;

import org.gvsig.app.project.documents.layout.tools.listener.LayoutToolListener;

import org.gvsig.fmap.geom.Geometry.SUBTYPES;

import org.gvsig.fmap.geom.GeometryLocator;

import org.gvsig.fmap.geom.GeometryManager;

import org.gvsig.fmap.geom.exception.CreateEnvelopeException;

import org.gvsig.fmap.geom.primitive.Envelope;

import org.gvsig.fmap.mapcontrol.tools.BehaviorException;

import org.gvsig.fmap.mapcontrol.tools.Events.EnvelopeEvent;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 * Behaviour que espera un listener de tipo LayoutRectangleListener.

 * 

 * @author Vicente Caballero Navarro

 */

public class LayoutRectangleByTwoPointsBehavior extends LayoutBehavior {

    private static final GeometryManager geomManager = GeometryLocator

        .getGeometryManager();

    private static final Logger logger = LoggerFactory

        .getLogger(LayoutRectangleByTwoPointsBehavior.class);

    private LayoutRectangleListener listener;

    boolean findingSecondPoint = false;

    private Point firstPoint;

    /**

     * Crea un nuevo RectangleBehavior.

     * 

     * @param zili

     *            listener.

     */

    public LayoutRectangleByTwoPointsBehavior(LayoutRectangleListener lrl) {

        listener = lrl;

    }

    /**

     * @see org.gvsig.fmap.mapcontrol.tools.Behavior.Behavior#paintComponent(java.awt.Graphics)

     */

    @Override

    public void paintComponent(Graphics g) {

        BufferedImage img = getLayoutControl().getImage();

        BufferedImage imgRuler = getLayoutControl().getImgRuler();

        g.drawImage(img, 0, 0, getLayoutControl().getComponent());

        g.drawImage(imgRuler, 0, 0, getLayoutControl().getComponent());

        g.setColor(Color.black);

        g.setXORMode(Color.white);

        // Borramos el anterior

        Rectangle r = new Rectangle();

        // Dibujamos el actual

        if (findingSecondPoint && (getLayoutControl().getFirstPoint() != null)

            && (getLayoutControl().getLastPoint() != null)) {

            r.setFrameFromDiagonal(getLayoutControl().getFirstPoint(),

                getLayoutControl().getLastPoint());

            g.drawRect(r.x, r.y, r.width, r.height);

        }

        IFFrame[] frames =

            getLayoutControl().getLayoutContext().getSelectedFFrames();

        for (IFFrame frame : frames) {

            g.setColor(Color.black);

            frame.drawHandlers((Graphics2D) g);

        }

        g.setPaintMode();

    }

    /**

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

     * 

     * @param e

     *            MouseEvent

     * @throws BehaviorException

     */

    @Override

    public void mousePressed(MouseEvent e) throws BehaviorException {

    }

    /**

     * Reimplementaci?n del m?todo mouseReleased de Behavior.

     * 

     * @param e

     *            MouseEvent

     * 

     * @throws BehaviorException

     *             Excepci?n lanzada cuando el Behavior.

     */

    @Override

    public void mouseReleased(MouseEvent e) throws BehaviorException {

    }

    @Override

    public void mouseClicked(MouseEvent e) throws BehaviorException {

        if (e.getButton() != MouseEvent.BUTTON1) {

            return;

        }

        if(!findingSecondPoint) {

            getLayoutControl().setPointAnt();

            getLayoutControl().setFirstPoint();

            this.firstPoint = getLayoutControl().getFirstPoint();

            if (listener.cancelDrawing()) {

                // getLayout().cancelDrawing();

            }

            getLayoutControl().repaint();

            this.findingSecondPoint = true;

            return;

        }

        getLayoutControl().setLastPoint();

        getLayoutControl().setPointAnt();

        getLayoutControl().setPosition(firstPoint);

        getLayoutControl().setFirstPoint();

        Point2D p1;

        Point2D p2;

        Point pScreen = getLayoutControl().getLastPoint();

        AffineTransform at = getLayoutControl().getAT();

        p1 =

            FLayoutUtilities.toSheetPoint(getLayoutControl().getFirstPoint(),

                at);

        p2 = FLayoutUtilities.toSheetPoint(pScreen, at);

        if (e.getButton() == MouseEvent.BUTTON1) {

            // Fijamos el nuevo extent

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

            // r.setFrameFromDiagonal(p1, p2);

            Envelope r;

            try {

                r =

                    geomManager.createEnvelope(p1.getX(), p1.getY(), p2.getX(),

                        p2.getY(), SUBTYPES.GEOM2D);

                Rectangle2D rectPixel = new Rectangle();

                rectPixel.setFrameFromDiagonal(getLayoutControl()

                    .getFirstPoint(), pScreen);

                EnvelopeEvent event = new EnvelopeEvent(r, e, rectPixel);

                listener.rectangle(event);

            } catch (CreateEnvelopeException e1) {

                logger.error("Error creating the envelope", e);

            }

        }

        findingSecondPoint = false;

    }

    /**

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

     * 

     * @param e

     *            MouseEvent

     * @throws BehaviorException

     */

    @Override

    public void mouseDragged(MouseEvent e) throws BehaviorException {

    }

    @Override

    public void mouseMoved(MouseEvent e) throws BehaviorException {

        if (e.getButton() != MouseEvent.NOBUTTON) {

            return;

        }

        if (findingSecondPoint) {

            getLayoutControl().setLastPoint();

            getLayoutControl().repaint();

        }

    }

    /**

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

     */

    public void setListener(LayoutToolListener listener) {

        this.listener = (LayoutRectangleListener) listener;

    }

    /**

     * @see org.gvsig.fmap.mapcontrol.tools.Behavior.Behavior#getListener()

     */

    @Override

    public LayoutToolListener getListener() {

        return listener;

    }

    @Override

    public boolean isAdjustable() {

        return true;

    }

}