Application: gvSIG desktop

/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

 *

 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

 *

 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

 *

 * For more information, contact:

 *

 *  Generalitat Valenciana

 *   Conselleria d'Infraestructures i Transport

 *   Av. Blasco Ib??ez, 50

 *   46010 VALENCIA

 *   SPAIN

 *

 *      +34 963862235

 *   gvsig@gva.es

 *      www.gvsig.gva.es

 *

 *    or

 *

 *   IVER T.I. S.A

 *   Salamanca 50

 *   46005 Valencia

 *   Spain

 *

 *   +34 963163400

 *   dac@iver.es

 */

package com.iver.cit.gvsig.fmap;

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

import com.iver.cit.gvsig.fmap.layers.CancelationException;

import com.iver.cit.gvsig.fmap.layers.FLayer;

import com.iver.cit.gvsig.fmap.layers.FLayers;

import com.iver.cit.gvsig.fmap.layers.LayerChangeSupport;

import com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent;

import com.iver.cit.gvsig.fmap.layers.LayerCollectionListener;

import com.iver.cit.gvsig.fmap.layers.LayerPositionEvent;

import com.iver.cit.gvsig.fmap.layers.LegendListener;

import com.iver.cit.gvsig.fmap.layers.VectorialAdapter;

import com.iver.cit.gvsig.fmap.layers.XMLException;

import com.iver.cit.gvsig.fmap.layers.layerOperations.Classifiable;

import com.iver.cit.gvsig.fmap.layers.layerOperations.Selectable;

import com.iver.cit.gvsig.fmap.operations.Cancellable;

import com.iver.cit.gvsig.fmap.operations.selection.Record;

import com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor;

import com.iver.cit.gvsig.fmap.operations.strategies.SelectByPointVisitor;

import com.iver.cit.gvsig.fmap.operations.strategies.SelectByRectVisitor;

import com.iver.cit.gvsig.fmap.operations.strategies.SelectedZoomVisitor;

import com.iver.cit.gvsig.fmap.operations.strategies.VisitException;

import com.iver.cit.gvsig.fmap.rendering.LegendChangedEvent;

import com.iver.cit.gvsig.fmap.rendering.styling.FStyle2D;

import com.iver.utiles.XMLEntity;

import org.cresques.cts.ICoordTrans;

import org.cresques.cts.IProjection;

import org.cresques.geo.Projected;

import java.awt.Graphics2D;

import java.awt.RenderingHints;

import java.awt.Toolkit;

import java.awt.geom.Point2D;

import java.awt.geom.Rectangle2D;

import java.awt.image.BufferedImage;

import java.util.ArrayList;

import java.util.BitSet;

/**

 * Modelo del mapa.

 *

 * @author Fernando Gonz?lez Cort?s

 */

public class FMap implements Projected {

        public static final double[] CHANGEM = {

                        1000, 1, 0.01, 0.001, 1609.344, 0.9144, 0.3048, 0.0254

                };

        public static final double[] CHANGE = {

                        100000, 100, 1, 0.1, 160934.4, 91.44, 30.48, 2.54

                };

        public static final int EQUALS = 0;

        public static final int DISJOINT = 1;

        public static final int INTERSECTS = 2;

        public static final int TOUCHES = 3;

        public static final int CROSSES = 4;

        public static final int WITHIN = 5;

        public static final int CONTAINS = 6;

        public static final int OVERLAPS = 7;

        private FLayers layers = new FLayers(this, null);

        private ViewPort viewPort;

        private ArrayList invalidationListeners = new ArrayList();

        private LayerChangeSupport layerChangeSupport = new LayerChangeSupport();

        private EventBuffer eventBuffer = new EventBuffer();

        /**

         * Crea un nuevo FMap.

         *

         * @param vp ViewPort.

         */

        public FMap(ViewPort vp) {

                this.viewPort = vp;

                layers.addLayerCollectionListener(new LayerEventListener());

                layers.addLayerCollectionListener(eventBuffer);

                if (viewPort != null) {

                        viewPort.addViewPortListener(eventBuffer);

                }

        }

        /**

         * A?ade un LegendListener.

         *

         * @param listener LegendListener a a?adir.

         */

        public void addLayerListener(LegendListener listener) {

                layerChangeSupport.addLayerListener(listener);

        }

        /**

         * M?todo ejecutado cuando hay un cambio de leyenda que se quiera reflejar.

         *

         * @param e LegendChangedEvent.

         */

        public void callLegendChanged(LegendChangedEvent e) {

                layerChangeSupport.callLegendChanged(e);

        }

        /**

         * Borra un LegendListener.

         *

         * @param listener LegendListener a borrar.

         */

        public void removeLayerListener(LegendListener listener) {

                layerChangeSupport.removeLayerListener(listener);

        }

        /**

         * Devuelve las capas que contiene el mapa.

         *

         * @return Capas.

         */

        public FLayers getLayers() {

                return layers;

        }

        /**

         * Dibuja en la imagen que se pasa como par?metro el contenido de las capas

         * visibles del mapa y teniendo en cuenta los datos del ViewPort contenido

         * en este FMap

         *

         * @param b Imagen.

         */

        public void drawLabels(BufferedImage b) {

        }

        /**

         * M?todo de conveniencia que se usa provisionalmente para

         * solicitar un refresco de todo lo que dependa del

         * FMap (MapContext). Esto provocar? un evento de cambio

         * de orden de capas que obligar? a redibujar todo lo que

         * depende de FMap (TOC, MapControl, FFrameView, etc).

         */

        public void invalidate()

        {

                getLayers().moveTo(0,0);

        }

        /**

         * Imprime el las capas que contiene el FMap sobre el Graphics2D que se

         * pasa como par?metro, normalmente es el Graphics de la impresora.

         *

         * @param g Graphics2D

         *

         * @throws DriverException

         */

        public void print(Graphics2D g) throws DriverException {

                layers.print(g, viewPort,

                        new Cancellable() {

                                /**

                                 * @see com.iver.cit.gvsig.fmap.operations.Cancellable#isCanceled()

                                 */

                                public boolean isCanceled() {

                                        return false;

                                }

                        });

        }

        /**

         * Crea un nuevo FMap con la informaci?n del ViewPort que se pasa como

         * par?metro.

         *

         * @param vp ViewPort.

         *

         * @return FMap nuevo.

         */

        public FMap createNewFMap(ViewPort vp) {

                FMap ret = new FMap(vp);

                ret.layers = this.layers;

                return ret;

        }

        /**

         * Crea un nuevo FMap totalmente desligado, se replican las capas y el

         * ViewPort

         *

         * @return FMap clonado.

         *

         * @throws XMLException

         */

        public FMap cloneFMap() throws XMLException {

                return createFromXML(getXMLEntity());

        }

        /**

         * A?ade la capa que se pasa como par?metro al nodo que se pasa como

         * parametro y lanza ProjectionMismatchException si no est?n todas las

         * capas de este FMap en la misma proyecci?n. Lanza un

         * ChildNotAllowedException si la capa no es un FLayers y no permite hijos

         *

         * @param vectorial DOCUMENT ME!

         */

        /*        public void addLayer(LayerPath parent, FLayer layer)

           throws ProjectionMismatchException, ChildrenNotAllowedException {

           layers.addLayer(parent, layer);

           }

           public void removeLayer(LayerPath parent)throws ChildrenNotAllowedException{

                   layers.removeLayer(parent);

           }

         */

        /**

         * A?ade una capa al grupo de capas que se sit?a por encima de todas las

         * otras capas

         *

         * @param vectorial FLayer.

         */

        public void addToTrackLayer(FLayer vectorial) {

        }

        /**

         * Devuelve la escala de la vista en pantalla.

         *

         * @return escala de la vista.

         */

        public long getScaleView() {

                //TODO falta implementar un di?logo para poder especificar el usuario los pixels exactos de su pantalla.

                Toolkit kit = Toolkit.getDefaultToolkit();

                double dpi = kit.getScreenResolution();

                IProjection proj = viewPort.getProjection();

                if (viewPort.getImageSize() == null)

                    return -1;

                double w = ((viewPort.getImageSize().getWidth() / dpi) * 2.54);

                if (viewPort.getAdjustedExtent() == null) {

                        return 0;

                }

                if (proj == null) {

                        return (long) (viewPort.getAdjustedExtent().getWidth() / w * CHANGE[getViewPort()

                                                                                                                                                                        .getMapUnits()]);

                }

                return (long) proj.getScale(viewPort.getAdjustedExtent().getMinX(),

                        viewPort.getAdjustedExtent().getMaxX(),

                        viewPort.getImageSize().getWidth(), dpi);

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#setVectorial(com.iver.cit.gvsig.fmap.VectorialAdapter)

         */

        public void setVectorial(VectorialAdapter v) {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#process(com.iver.cit.gvsig.fmap.FeatureSelectorVisitor)

         */

        public void process(FeatureVisitor visitor) {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#processSelected(com.iver.cit.gvsig.fmap.FeatureVisitor)

         */

        public void processSelected(FeatureVisitor visitor) {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#select(com.iver.cit.gvsig.fmap.FeatureSelectorVisitor,

         *                 VectorialSubSet)

         */

        public void select(FeatureVisitor visitor) {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#selectFromSelection()

         */

        public void selectFromSelection() {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#createIndex()

         */

        public void createIndex() {

        }

        /**

         * @see org.cresques.geo.Projected#getProjection()

         */

        public IProjection getProjection() {

                return getViewPort().getProjection();

        }

        /**

         * Inserta la proyecci?n.

         *

         * @param proj Proyecci?n.

         */

        public void setProjection(IProjection proj) {

                getViewPort().setProjection(proj);

        }

        /**

         * @see org.cresques.geo.Projected#reProject(org.cresques.cts.ICoordTrans)

         */

        public void reProject(ICoordTrans arg0) {

                // TODO implementar reprojecci?n (lo que sea eso)

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#selectByPoint(java.awt.geom.Point2D,

         *                 double)

         */

        public void selectByPoint(Point2D p, double tolerance)

                throws DriverException {

                Point2D mapPoint = viewPort.toMapPoint((int) p.getX(), (int) p.getY());

                SelectByPointVisitor visitor = new SelectByPointVisitor();

                visitor.setQueriedPoint(mapPoint);

                visitor.setTolerance(getViewPort().toMapDistance(3));

                try {

                        layers.process(visitor);

                } catch (VisitException e) {

                        throw new RuntimeException("No se espera que SelectByPointVisitor lance esta excepci?n",

                                e);

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#selectByRect(java.awt.geom.Rectangle2D)

         */

        public void selectByRect(Rectangle2D rect) throws DriverException {

                SelectByRectVisitor visitor = new SelectByRectVisitor();

                visitor.setRect(rect);

                try {

                        layers.process(visitor);

                } catch (VisitException e) {

                        throw new RuntimeException("No se espera que SelectByRectVisitor lance esta excepci?n",

                                e);

                }

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#selectByShape(com.iver.cit.gvsig.fmap.fshape.IGeometry,

         *                 int)

         */

        public void selectByShape(IGeometry g, int relationship) {

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByPoint(Point2D,

         *                 double)

         */

        public Record[] queryByPoint(Point2D p, double tolerance) {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByRect(java.awt.geom.Rectangle2D)

         */

        public Record[] queryByRect(Rectangle2D rect) {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#queryByShape(com.iver.cit.gvsig.fmap.fshape.IGeometry,

         *                 int)

         */

        public Record[] queryByShape(IGeometry g, int relationship) {

                return null;

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.strategies.Strategy#getSelectionBounds()

         */

        public Rectangle2D getSelectionBounds() {

                SelectedZoomVisitor visitor = new SelectedZoomVisitor();

                                try {

                                        layers.process(visitor);

                                } catch (DriverException e1) {

                                        throw new RuntimeException("No se espera que SelectByPointVisitor lance esta excepci?n",

                                                        e1);

                                } catch (VisitException e) {

                                        throw new RuntimeException("No se espera que SelectByPointVisitor lance esta excepci?n",

                                                        e);

                }

                return visitor.getSelectBound();

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.LayerOperations#draw(java.awt.image.BufferedImage,

         *                 java.awt.Graphics2D, FStyle2D)

         */

        public void draw(BufferedImage image, Graphics2D g, Cancellable cancel)

                throws DriverException {

                if (viewPort.getExtent() == null) {

                        // System.err.println("viewPort.getExtent() = null");

                        return;

                }

                // System.out.println("Viewport despues: " + viewPort);

                /* if ((viewPort.getImageWidth() <=0) || (viewPort.getImageHeight() <= 0))

                   {

                           return;

                   } */

                // M?s c?lidad al texto

                g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

                        RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

                layers.draw(image, g, viewPort, cancel);

                /* g.setColor(Color.BLUE);

                   GeneralPath shpR = new GeneralPath(viewPort.getExtent());

                   shpR.transform(viewPort.getAffineTransform());

                   g.draw(shpR); */

                System.gc();

        }

        /**

         * @see com.iver.cit.gvsig.fmap.operations.LayerOperations#draw(java.awt.image.BufferedImage,

         *                 java.awt.Graphics2D, FStyle2D)

         */

        public void draw(BufferedImage image, Graphics2D g)

                throws DriverException {

                draw(image, g, new Cancellable() {

                                /**

                                 * @see com.iver.cit.gvsig.fmap.operations.Cancellable#isCanceled()

                                 */

                                public boolean isCanceled() {

                                        return false;

                                }

                        });

        }

        /**

         * Devuelve el ViewPort.

         *

         * @return Returns the viewPort.

         */

        public ViewPort getViewPort() {

                return viewPort;

        }

        /**

         * Inserta un ViewPort.

         *

         * @param viewPort The viewPort to set.

         */

        public void setViewPort(ViewPort viewPort) {

                if (this.viewPort != null) {

                        this.viewPort.removeViewPortListener(eventBuffer);

                }

                this.viewPort = viewPort;

                viewPort.addViewPortListener(eventBuffer);

        }

        /**

         * M?todo de conveniencia. Recorre las capas y te da el fullExtent

         *

         * @return fullExtent de todas las capas.

         *

         * @throws DriverException

         */

        public Rectangle2D getFullExtent() throws DriverException {

                return layers.getFullExtent();

        }

        /**

         * Devuelve el XMLEntity.

         *

         * @return XMLEntity.

         */

        public XMLEntity getXMLEntity() {

                XMLEntity xml = new XMLEntity();

                xml.putProperty("className",this.getClass().getName());

                xml.addChild(viewPort.getXMLEntity());

                xml.addChild(layers.getXMLEntity());

                return xml;

        }

        /**

         * Crea un nuevo FMAp a partir del XMLEntity.

         *

         * @param xml XMLEntity

         *

         * @return Nuevo FMap.

         *

         * @throws XMLException

         */

        public static FMap createFromXML(XMLEntity xml) throws XMLException {

                ViewPort vp = ViewPort.createFromXML(xml.getChild(0));

                FMap fmap = new FMap(vp);

                fmap.layers.setXMLEntity(xml.getChild(1));

                return fmap;

        }

        /**

         * A?ade un AtomicEventListener.

         *

         * @param listener AtomicEventListener.

         *

         * @return True si se ha a?adido correctamente.

         */

        public boolean addAtomicEventListener(AtomicEventListener listener) {

                return eventBuffer.addAtomicEventListener(listener);

        }

        /**

         * Borra un AtomicEventListener de la lista de listeners.

         *

         * @param listener AtomicEventListener a borrar.

         *

         * @return True si se ha borrado correctamente.

         */

        public boolean removeAtomicEventListener(AtomicEventListener listener) {

                return eventBuffer.removeAtomicEventListener(listener);

        }

        /**

         * Inicializa los AtomicEvent.

         */

        public void beginAtomicEvent() {

                eventBuffer.beginAtomicEvent();

        }

        /**

         * Finaliza los AtomicEvent.

         */

        public void endAtomicEvent() {

                eventBuffer.endAtomicEvent();

        }

        /**

         * Evento Layer.

         *

         * @author Fernando Gonz?lez Cort?s

         */

        public class LayerEventListener implements LayerCollectionListener {

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdded(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

                 */

                public void layerAdded(LayerCollectionEvent e) {

                        // Si es la primera capa, fijamos su extent al ViewPort

                        //if (getLayers().getLayersCount() == 1) {

                        if (getViewPort().getExtent() == null) {

                                FLayer lyr = e.getAffectedLayer();

                                try {

                                        getViewPort().setExtent(lyr.getFullExtent());

                                } catch (DriverException e1) {

                                }

                        }

                        //Registramos al FMap como listener del legend de las capas

                        FLayer lyr = e.getAffectedLayer();

                        lyr.addLayerListener(eventBuffer);

                        if (lyr instanceof Classifiable) {

                                Classifiable c = (Classifiable) lyr;

                                c.addLegendListener(eventBuffer);

                        }

                        if (lyr instanceof Selectable) {

                                Selectable s = (Selectable) lyr;

                                s.addSelectionListener(eventBuffer);

                        }

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoved(com.iver.cit.gvsig.fmap.layers.LayerPositionEvent)

                 */

                public void layerMoved(LayerPositionEvent e) {

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoved(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

                 */

                public void layerRemoved(LayerCollectionEvent e) {

                        FLayer lyr = e.getAffectedLayer();

                        lyr.removeLayerListener(eventBuffer);

                        if (lyr instanceof Classifiable) {

                                Classifiable c = (Classifiable) lyr;

                                c.removeLegendListener(eventBuffer);

                        }

                        if (lyr instanceof Selectable) {

                                Selectable s = (Selectable) lyr;

                                s.addSelectionListener(eventBuffer);

                        }

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerAdding(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

                 */

                public void layerAdding(LayerCollectionEvent e)

                        throws CancelationException {

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerMoving(com.iver.cit.gvsig.fmap.layers.LayerPositionEvent)

                 */

                public void layerMoving(LayerPositionEvent e)

                        throws CancelationException {

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#layerRemoving(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

                 */

                public void layerRemoving(LayerCollectionEvent e)

                        throws CancelationException {

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#activationChanged(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

                 */

                public void activationChanged(LayerCollectionEvent e)

                        throws CancelationException {

                }

                /**

                 * @see com.iver.cit.gvsig.fmap.layers.LayerCollectionListener#visibilityChanged(com.iver.cit.gvsig.fmap.layers.LayerCollectionEvent)

                 */

                public void visibilityChanged(LayerCollectionEvent e)

                        throws CancelationException {

                }

        }

}