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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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 *
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 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
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 *
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 * For more information, contact:
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 *
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 *  Generalitat Valenciana
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 *   Conselleria d'Infraestructures i Transport
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 *   Av. Blasco Ib??ez, 50
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 *   46010 VALENCIA
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 *   SPAIN
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 *
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 *      +34 963862235
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 *   gvsig@gva.es
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 *      www.gvsig.gva.es
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 *
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 *    or
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 *
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 *   IVER T.I. S.A
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 *   Salamanca 50
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 *   46005 Valencia
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 *   Spain
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 *
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 *   +34 963163400
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 *   dac@iver.es
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 */
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package com.iver.cit.gvsig.fmap.layers;
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import com.hardcode.driverManager.Driver;
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import com.hardcode.driverManager.DriverLoadException;
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import com.iver.cit.gvsig.fmap.DriverException;
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import com.iver.cit.gvsig.fmap.FMap;
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import com.iver.cit.gvsig.fmap.ViewPort;
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import com.iver.cit.gvsig.fmap.drivers.DriverIOException;
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import com.iver.cit.gvsig.fmap.drivers.VectorialFileDriver;
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import com.iver.cit.gvsig.fmap.layers.layerOperations.LayerCollection;
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import com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData;
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import com.iver.cit.gvsig.fmap.operations.Cancellable;
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import com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor;
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import com.iver.cit.gvsig.fmap.operations.strategies.VisitException;
55

    
56
import com.iver.utiles.StringUtilities;
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import com.iver.utiles.XMLEntity;
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import org.cresques.cts.ICoordTrans;
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import org.cresques.cts.IProjection;
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import org.cresques.cts.gt2.CoordSys;
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import org.cresques.cts.gt2.CoordTrans;
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import java.awt.Graphics2D;
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import java.awt.geom.Rectangle2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.BitSet;
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import java.util.Iterator;
76

    
77
/**
78
 * Representa un nodo interno en el ?rbol de capas
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 */
80
public class FLayers extends FLyrDefault implements VectorialData,
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        LayerCollection {
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        //ArrayList de Listener registrados.
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        private ArrayList layerListeners = new ArrayList();
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        private ArrayList layers = new ArrayList(4);
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        private FMap fmap;
86

    
87
        /**
88
         * Crea un nuevo FLayers.
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         *
90
         * @param fmap
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         * @param parent
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         */
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        public FLayers(FMap fmap, FLayers parent) {
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                setParentLayer(parent);
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                this.fmap = fmap;
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        }
97

    
98
        /**
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         * A?ade un listener de los eventos de la colecci?n de capas
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         *
101
         * @param listener
102
         */
103
        public void addLayerCollectionListener(LayerCollectionListener listener) {
104
                layerListeners.add(listener);
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        }
106

    
107
        /**
108
         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.LayerCollection#setAllVisibles(boolean)
109
         */
110
        public void setAllVisibles(boolean visible) {
111
                FLayer lyr;
112

    
113
                for (int i = 0; i < layers.size(); i++) {
114
                        lyr = ((FLayer) layers.get(i));
115
                        lyr.setVisible(visible);
116

    
117
                        if (lyr instanceof LayerCollection) {
118
                                ((LayerCollection) lyr).setAllVisibles(visible);
119
                        }
120
                }
121
        }
122

    
123
        /**
124
         * Elimina un listener de los eventos de la colecci?n de capas
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         *
126
         * @param listener
127
         */
128
        public void removeLayerCollectionListener(LayerCollectionListener listener) {
129
                layerListeners.remove(listener);
130
        }
131

    
132
        /**
133
         * A?ade una capa.
134
         *
135
         * @param layer
136
         */
137
        private void doAddLayer(FLayer layer) {
138
                layers.add(layer);
139
                layer.setParentLayer(this);
140
        }
141

    
142
        /**
143
         * A?ade una capa al final de la lista de subcapas
144
         *
145
         * @param layer
146
         *
147
         * @throws CancelationException
148
         */
149
        public void addLayer(FLayer layer) throws CancelationException {
150
                callLayerAdding(LayerCollectionEvent.createLayerAddingEvent(layer));
151

    
152
                doAddLayer(layer);
153

    
154
                callLayerAdded(LayerCollectionEvent.createLayerAddedEvent(layer));
155
        }
156

    
157
        /**
158
         * Mueve una capa de la posici?n from a la posici?n to. (Se supone que
159
         * est?n dentro del mismo nivel). Para mover entre niveles, usar otro
160
         * m?todo (por hacer)
161
         *
162
         * @param from origen.
163
         * @param to destino.
164
         *
165
         * @throws CancelationException
166
         */
167
        public void moveTo(int from, int to) throws CancelationException {
168
                FLayer aux = (FLayer) layers.get(from);
169
                callLayerMoving(LayerPositionEvent.createLayerMovingEvent(aux, from, to));
170
                layers.remove(from);
171
                layers.add(to, aux);
172
                callLayerMoved(LayerPositionEvent.createLayerMovedEvent(aux, from, to));
173
        }
174

    
175
        /**
176
         * Borra una capa del ArrayList que contiene a las capas.
177
         *
178
         * @param lyr FLayer.
179
         */
180
        private void doRemoveLayer(FLayer lyr) {
181
                        layers.remove(lyr);
182
        }
183

    
184
        /**
185
         * Borra una capa de la colecci?n de capas.
186
         *
187
         * @param lyr FLayer
188
         *
189
         * @throws CancelationException
190
         */
191
        public void removeLayer(FLayer lyr) throws CancelationException {
192
                callLayerRemoving(LayerCollectionEvent.createLayerRemovingEvent(lyr));
193
                doRemoveLayer(lyr);
194
                callLayerRemoved(LayerCollectionEvent.createLayerRemovedEvent(lyr));
195
        }
196

    
197
        /**
198
         * Borra una FLayer del vector a partir del identificador.
199
         *
200
         * @param idLayer
201
         */
202
        public void removeLayer(int idLayer) {
203
                FLayer lyr = (FLayer) layers.get(idLayer);
204
                callLayerRemoving(LayerCollectionEvent.createLayerRemovingEvent(lyr));
205
                layers.remove(idLayer);
206
                callLayerRemoved(LayerCollectionEvent.createLayerRemovedEvent(lyr));
207
        }
208

    
209
        /**
210
         * M?todo de conveniencia para borrar una capa con ese nombre
211
         *
212
         * @param layerName
213
         */
214
        public void removeLayer(String layerName) {
215
                FLayer lyr;
216

    
217
                for (int i = 0; i < layers.size(); i++) {
218
                        lyr = ((FLayer) layers.get(i));
219

    
220
                        if (lyr.getName().compareToIgnoreCase(layerName) == 0) {
221
                                removeLayer(i);
222

    
223
                                break;
224
                        }
225
                }
226
        }
227

    
228
        /**
229
         * Obtiene el array de capas visibles que penden del arbol cuya ra?z es
230
         * este nodo
231
         *
232
         * @return Vector de FLayer.
233
         */
234
        public FLayer[] getVisibles() {
235
                ArrayList array = new ArrayList();
236

    
237
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
238
                        if (((FLayer) iter.next()).isVisible()) {
239
                                array.add((FLayer) iter.next());
240
                        }
241
                }
242

    
243
                return (FLayer[]) array.toArray(new FLayer[0]);
244
        }
245

    
246
        /**
247
         * Obtiene el hijo i-?simo directo de esta colecci?n
248
         *
249
         * @param index ?ndice.
250
         *
251
         * @return capa seleccionada.
252
         */
253
        public FLayer getLayer(int index) {
254
                return (FLayer) layers.get(index);
255
        }
256

    
257
        /**
258
         * M?todo de conveniencia para buscar una capa por su nombre Es conveniente
259
         * usar getLayer(int) siempre que se pueda, es m?s directo.
260
         *
261
         * @param layerName nombre.
262
         *
263
         * @return capa seleccionada.
264
         */
265
        public FLayer getLayer(String layerName) {
266
                FLayer lyr;
267

    
268
                for (int i = 0; i < layers.size(); i++) {
269
                        lyr = ((FLayer) layers.get(i));
270

    
271
                        if (lyr.getName().compareToIgnoreCase(layerName) == 0) {
272
                                return lyr;
273
                        }
274
                }
275

    
276
                return null;
277
        }
278

    
279
        /**
280
         * Obtiene el n?mero de capas que hay en su mismo nivel Es decir, no cuenta
281
         * las subcapas de un FLayers
282
         *
283
         * @return n?mero de capas.
284
         */
285
        public int getLayersCount() {
286
                return layers.size();
287
        }
288

    
289
        /**
290
         * @see com.iver.cit.gvsig.fmap.layers.FLayer#draw(java.awt.image.BufferedImage,
291
         *                 java.awt.Graphics2D, com.iver.cit.gvsig.fmap.ViewPort)
292
         */
293
        public void draw(BufferedImage image, Graphics2D g, ViewPort viewPort,
294
                Cancellable cancel) throws DriverException {
295
            double scale = getFMap().getScaleView();
296
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
297
                        FLayer lyr = (FLayer) iter.next();
298

    
299
                        if (lyr.isVisible()) {
300
                            if (lyr.isWithinScale())
301
                            {                                
302
                                long t1 = System.currentTimeMillis();
303
                                lyr.draw(image, g, viewPort, cancel);
304
                                        long t2 = System.currentTimeMillis();
305
                                        System.out.println("Layer " + lyr.getName() + " "
306
                                                + (t2-t1) + " milisecs.");        
307
                            }
308
                        }
309
                }
310

    
311
                if (getVirtualLayers() != null) {
312
                        getVirtualLayers().draw(image, g, viewPort, cancel);
313
                }
314
        }
315

    
316
        /**
317
         * @see com.iver.cit.gvsig.fmap.layers.FLayer#print(java.awt.Graphics2D,
318
         *                 com.iver.cit.gvsig.fmap.ViewPort,
319
         *                 com.iver.cit.gvsig.fmap.operations.Cancellable)
320
         */
321
        public void print(Graphics2D g, ViewPort viewPort, Cancellable cancel)
322
                throws DriverException {
323
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
324
                        FLayer lyr = (FLayer) iter.next();
325

    
326
                        if (lyr.isVisible()) {
327
                                lyr.print(g, viewPort, cancel);
328
                        }
329
                }
330
        }
331

    
332
        /**
333
         * @see com.iver.cit.gvsig.fmap.layers.FLayer#getFullExtent()
334
         */
335
        public Rectangle2D getFullExtent() throws DriverException {
336
                Rectangle2D rAux = null;
337
                int i = 0;
338

    
339
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
340
                        FLayer capa = (FLayer) iter.next();
341

    
342
                        if (i == 0) {
343
                                rAux = capa.getFullExtent();
344
                        } else {
345
                                rAux.add(capa.getFullExtent());
346
                        }
347

    
348
                        i++;
349
                }
350

    
351
                return rAux;
352
        }
353

    
354
        /**
355
         * Llama al m?todo layerAdding de los listeners dados de alta.
356
         *
357
         * @param event
358
         *
359
         * @throws CancelationException
360
         */
361
        private void callLayerAdding(LayerCollectionEvent event)
362
                throws CancelationException {
363
                for (Iterator iter = layerListeners.iterator(); iter.hasNext();) {
364
                        ((LayerCollectionListener) iter.next()).layerAdding(event);
365
                }
366
        }
367

    
368
        /**
369
         * Llama al m?todo layerRemoving de los listeners dados de alta.
370
         *
371
         * @param event
372
         *
373
         * @throws CancelationException
374
         */
375
        private void callLayerRemoving(LayerCollectionEvent event)
376
                throws CancelationException {
377
                for (Iterator iter = layerListeners.iterator(); iter.hasNext();) {
378
                        ((LayerCollectionListener) iter.next()).layerRemoving(event);
379
                }
380
        }
381

    
382
        /**
383
         * Llama al m?todo layerMoving de los listeners dados de alta.
384
         *
385
         * @param event
386
         *
387
         * @throws CancelationException
388
         */
389
        private void callLayerMoving(LayerPositionEvent event)
390
                throws CancelationException {
391
                for (Iterator iter = layerListeners.iterator(); iter.hasNext();) {
392
                        ((LayerCollectionListener) iter.next()).layerMoving(event);
393
                }
394
        }
395

    
396
        /**
397
         * Llama al m?todo layerAdded de los listeners dados de alta.
398
         *
399
         * @param event
400
         */
401
        private void callLayerAdded(LayerCollectionEvent event) {
402
                for (Iterator iter = layerListeners.iterator(); iter.hasNext();) {
403
                        ((LayerCollectionListener) iter.next()).layerAdded(event);
404
                }
405
        }
406

    
407
        /**
408
         * Llama al m?todo layerRemoved de los listeners dados de alta.
409
         *
410
         * @param event
411
         */
412
        private void callLayerRemoved(LayerCollectionEvent event) {
413
                for (Iterator iter = layerListeners.iterator(); iter.hasNext();) {
414
                        ((LayerCollectionListener) iter.next()).layerRemoved(event);
415
                }
416
        }
417

    
418
        /**
419
         * Llama al m?todo layerMoved de los listeners dados de alta.
420
         *
421
         * @param event
422
         */
423
        private void callLayerMoved(LayerPositionEvent event) {
424
                for (Iterator iter = layerListeners.iterator(); iter.hasNext();) {
425
                        ((LayerCollectionListener) iter.next()).layerMoved(event);
426
                }
427
        }
428

    
429
        /**
430
         * @throws XMLException
431
         * @see com.iver.cit.gvsig.fmap.layers.FLayer#getProperties()
432
         */
433
        public XMLEntity getXMLEntity() throws XMLException {
434
                XMLEntity xml = super.getXMLEntity();
435
                xml.putProperty("numLayers", layers.size());
436

    
437
                String[] s = new String[layers.size()];
438

    
439
                for (int i = 0; i < layers.size(); i++) {
440
                        s[i] = ((FLayer) layers.get(i)).getName();
441
                }
442

    
443
                xml.putProperty("LayerNames", s);
444

    
445
                for (int i = 0; i < layers.size(); i++) {
446
                        xml.addChild(((FLayer) layers.get(i)).getXMLEntity());
447
                }
448

    
449
                return xml;
450
        }
451

    
452
        /**
453
         * DOCUMENT ME!
454
         *
455
         * @param xml DOCUMENT ME!
456
         *
457
         * @throws XMLException
458
         *
459
         * @see com.iver.cit.gvsig.fmap.layers.FLyrDefault#setXMLEntity(com.iver.utiles.XMLEntity)
460
         */
461
        public void setXMLEntity(XMLEntity xml) throws XMLException {
462
                super.setXMLEntity(xml);
463

    
464
                int numLayers = xml.getIntProperty("numLayers");
465

    
466
                String[] s = xml.getStringArrayProperty("LayerNames");
467
                try {
468
                        for (int i = 0; i < numLayers; i++) {
469
                                FLayer layer = null;
470
        
471
                                String className = xml.getChild(i).getStringProperty("className");
472
        
473
                                if (className.equals(FLyrVect.class.getName())) {
474
                                        String type = xml.getChild(i).getStringProperty("type");
475
                                        if ("vectorial".equals(type)){
476
                                                String recordsetName = xml.getChild(i).getStringProperty("recordset-name");
477
                                                if (xml.getChild(i).contains("file")) {
478
                                                        Driver d;
479
                                                        try {
480
                                                                d = LayerFactory.getDM().getDriver(xml.getChild(i).getStringProperty("driverName"));
481
                                                        } catch (DriverLoadException e1) {
482
                                                                throw new XMLException(e1);
483
                                                        }
484
                                                        layer = LayerFactory.createLayer(s[i], (VectorialFileDriver) d,
485
                                                                                                                        new File(xml.getChild(i).getStringProperty("file")),
486
                                                                                                                        this.getFMap().getViewPort().getProjection());
487
                                                                                                                                                                    
488
                                                }                                                
489
                                        } else if ("raster".equals(type)) {
490
/*                                                if (xml.getChild(i).contains("file")) {
491
                                                        Driver d = LayerFactory.getDM().getDriver(xml.getChild(i).getStringProperty("driverName"));
492
                                                                                                        layer = LayerFactory.createLayer(s[i],
493
                                                                                                                        ,
494
                                                                                                                        new File(xml.getChild(i).getStringProperty("file")),
495
                                                                                                                        this.getFMap().getViewPort().getProjection());
496
                                                                                                                                                                    
497
                                                }                                                
498
*/                                        }
499
        
500
                                        layer.setXMLEntity(xml.getChild(i));
501
                                        // Comprobar que la proyecci?n es la misma que la de FMap
502
                                        // Si no lo es, es una capa que est? reproyectada al vuelo 
503
                                        IProjection proj = layer.getProjection();
504
                                        if (proj != null)
505
                                            if (proj != fmap.getProjection())
506
                                            {
507
                                                        ICoordTrans ct = new CoordTrans((CoordSys) proj,
508
                                                                        (CoordSys) fmap.getProjection());
509
                                                        layer.setCoordTrans(ct);
510
                                                        System.err.println("coordTrans = " +
511
                                                                proj.getAbrev() + " " +
512
                                                                fmap.getProjection().getAbrev());
513
                                            }
514
                                        
515
                                } else if (className.equals(FLyrWMS.class.getName())) {
516
                                        try {
517
                                                layer = LayerFactory.createLayer(s[i],
518
                                                                StringUtilities.string2Rect(
519
                                                                        xml.getChild(i).getStringProperty("fullExtent")),
520
                                                                new URL(xml.getChild(i).getStringProperty("host")),
521
                                                                xml.getChild(i).getStringProperty("format"),
522
                                                                xml.getChild(i).getStringProperty("layerQuery"),
523
                                                                xml.getChild(i).getStringProperty("infoLayerQuery"),
524
                                                                xml.getChild(i).getStringProperty("srs"));
525
                                        } catch (MalformedURLException e) {
526
                                                throw new XMLException(e);
527
                                        }
528
                                } else if (className.equals((FLyrRaster.class.getName()))) {
529
                                        //if (xml.getChild(i).contains("file")) {
530
                                        /*layer = LayerFactory.createLayer(s[i],
531
                                                        xml.getChild(i).getStringProperty("driverName"),
532
                                                        new File(xml.getChild(i).getStringProperty("file")),
533
                                                        this.getFMap().getViewPort().getProjection());*/
534
                                        layer = new FLyrRaster();
535
                                        layer.setName(s[i]);
536
                                        if (!xml.getChild(i).contains("proj"))
537
                                                ((FLyrRaster)layer).setProjection(this.getFMap().getViewPort().getProjection());
538
                                        layer.setXMLEntity(xml.getChild(i));
539
                                        try {
540
                                                layer.load();
541
                                        } catch (DriverIOException e) {
542
                                                throw new XMLException(e);
543
                                        }
544
        
545
                                }else if (className.equals((FLayers.class.getName()))) {
546
                                        layer = new FLayers(getFMap(),this);
547
                                        layer.setXMLEntity(xml.getChild(i));
548
                                } else {
549
                                        // Capas Nuevas (externas)
550
                                        try {
551
                                                Class clase = Class.forName(className);
552
                                                layer = (FLayer) clase.newInstance();
553
                                                layer.setName(s[i]);
554
                                                layer.setXMLEntity(xml.getChild(i));
555
                                                try {
556
                                                        layer.load();
557
                                                } catch (DriverIOException e) {
558
                                                        throw new XMLException(e);
559
                                                }
560
                                        } catch (Exception e) {
561
                                                //e.printStackTrace();
562
                                                throw new XMLException(e);
563
                                        }
564
                                }
565
        
566
                                this.addLayer(layer);
567
                        }
568
                } catch (DriverException e) {
569
                        throw new XMLException(e);
570
                }
571
                
572
        }
573

    
574
        /**
575
         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor,
576
         *                 java.util.BitSet)
577
         */
578
        public void process(FeatureVisitor visitor, BitSet subset)
579
                throws DriverException, VisitException {
580
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
581
                        FLayer layer = (FLayer) iter.next();
582

    
583
                        if (layer instanceof VectorialData) {
584
                                ((VectorialData) layer).process(visitor, subset);
585
                        }
586
                }
587
        }
588

    
589
        /**
590
         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.VectorialData#process(com.iver.cit.gvsig.fmap.operations.strategies.FeatureVisitor)
591
         */
592
        public void process(FeatureVisitor visitor)
593
                throws DriverException, VisitException {
594
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
595
                        FLayer layer = (FLayer) iter.next();
596

    
597
                        if (layer.isActive()) {
598
                                if (layer instanceof VectorialData) {
599
                                        ((VectorialData) layer).process(visitor);
600
                                }
601
                        }
602
                }
603
        }
604

    
605
        /**
606
         * @see com.iver.cit.gvsig.fmap.layers.FLayer#getFMap()
607
         */
608
        public FMap getFMap() {
609
                return fmap;
610
        }
611

    
612
        /* (non-Javadoc)
613
         * @see com.iver.cit.gvsig.fmap.layers.FLayer#setCoordTrans(org.cresques.cts.ICoordTrans)
614
         */
615
        public void setCoordTrans(ICoordTrans ct) {
616
                super.setCoordTrans(ct);
617

    
618
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
619
                        FLayer layer = (FLayer) iter.next();
620
                        layer.setCoordTrans(ct);
621
                }
622
        }
623

    
624
        /**
625
         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.LayerCollection#setAllActives(boolean)
626
         */
627
        public void setAllActives(boolean active) {
628
                FLayer lyr;
629

    
630
                for (int i = 0; i < layers.size(); i++) {
631
                        lyr = ((FLayer) layers.get(i));
632
                        lyr.setActive(active);
633

    
634
                        if (lyr instanceof LayerCollection) {
635
                                ((LayerCollection) lyr).setAllActives(active);
636
                        }
637
                }
638
        }
639

    
640
        /**
641
         * @see com.iver.cit.gvsig.fmap.layers.layerOperations.LayerCollection#getActives()
642
         */
643
        public FLayer[] getActives() {
644
                ArrayList ret = new ArrayList();
645

    
646
                for (int i = 0; i < layers.size(); i++) {
647
                        if (((FLayer) layers.get(i)).isActive()) {
648
                                ret.add(layers.get(i));
649
                        }else{
650
                                if (layers.get(i) instanceof FLayers){
651
                                        FLayer[] lyrs=((FLayers) layers.get(i)).getActives();
652
                                        for (int j=0;j<lyrs.length;j++){
653
                                                ret.add(lyrs[j]);
654
                                        }
655
                                }
656
                        }
657
                }
658

    
659
                return (FLayer[]) ret.toArray(new FLayer[0]);
660
        }
661

    
662
    /* (non-Javadoc)
663
     * @see com.iver.cit.gvsig.fmap.layers.FLayer#getMinScale()
664
     */
665
    public double getMinScale() {
666
        return -1; // La visibilidad o no la controla cada capa
667
                // dentro de una colecci?n
668
    }
669

    
670
    /* (non-Javadoc)
671
     * @see com.iver.cit.gvsig.fmap.layers.FLayer#getMaxScale()
672
     */
673
    public double getMaxScale() {
674
        return -1;
675
    }
676
    public void setMinScale(double minScale)
677
    {
678
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
679
                        FLayer lyr = (FLayer) iter.next();
680
                        lyr.setMinScale(minScale);
681
                }
682
    }
683
    public void setMaxScale(double maxScale)
684
    {
685
                for (Iterator iter = layers.iterator(); iter.hasNext();) {
686
                        FLayer lyr = (FLayer) iter.next();
687
                        lyr.setMinScale(maxScale);
688
                }
689
    }
690
    
691
}