geotools/selection/FeatureMapLayerSelectionSynchronizer.java

/*******************************************************************************
 * Copyright (c) 2009 Martin O. J. Schmitz.
 * 
 * This file is part of the SCHMITZM library - a collection of utility 
 * classes based on Java 1.6, focusing (not only) on Java Swing 
 * and the Geotools library.
 * 
 * The SCHMITZM project is hosted at:
 * http://wald.intevation.org/projects/schmitzm/
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3
 * 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 Lesser General Public License (license.txt)
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 * or try this link: http://www.gnu.org/licenses/lgpl.html
 * 
 * Contributors:
 *     Martin O. J. Schmitz - initial API and implementation
 *     Stefan A. Krüger - additional utility classes
 ******************************************************************************/
/** 
 Copyright 2008 Stefan Alfons Krüger 

 atlas-framework - This file is part of the Atlas Framework

 This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
 This library 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 Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA

 Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
 Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.
 Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.
 **/
package skrueger.geotools.selection;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.util.Vector;

import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionListener;

import org.geotools.map.MapLayer;
import org.geotools.styling.FeatureTypeStyle;
import org.geotools.styling.Style;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.filter.identity.FeatureId;

import schmitzm.geotools.FilterUtil;
import schmitzm.geotools.gui.JMapPane;
import schmitzm.geotools.map.event.FeatureSelectedEvent;
import schmitzm.geotools.map.event.JMapPaneEvent;
import schmitzm.geotools.map.event.JMapPaneListener;
import schmitzm.geotools.styling.StylingUtil;
import skrueger.geotools.MapPaneToolBar;
import skrueger.geotools.StyledLayerInterface;

/**
 * This class keeps the selection of a (feature) {@link JTable} synchronized
 * with the {@link StyledLayerSelectionModel} of a layer. This is done by
 * implementing:
 * <ul>
 * <li>a {@link PropertyChangeListener} which listens to the
 * {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
 * selection</li>
 * <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
 * accordingly changes the {@link StyledLayerSelectionModel} selection</li>
 * </ul>
 * After creating, the instance of this synchronizer must be added as listener
 * to both, the {@link StyledLayerSelectionModel} and the table's
 * {@link ListSelectionModel}.
 * 
 * @author <a href="mailto:[email protected]">Martin Schmitz</a>
 *         (University of Bonn/Germany)
 */
public class FeatureMapLayerSelectionSynchronizer extends
                StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
                implements JMapPaneListener {
        public static final String SELECTION_STYLING = "SELECTION";
        /**
         * Holds the {@link MapLayer} to keep synchronized with the layer selection
         * model.
         */
        protected final MapLayer mapLayer;
        protected final StyledLayerInterface<?> styledLayer;
        protected final JMapPane mapPane;
        private final MapPaneToolBar toolBar;

        /**
         * Creates a new synchronizer
         * 
         * @param layerSelModel
         *            layer selection model to keep synchronized with the
         *            {@link MapLayer}
         * 
         * @param mapLayer
         *            {@link MapLayer} to keep synchronized with.
         */
        public FeatureMapLayerSelectionSynchronizer(
                        StyledFeatureLayerSelectionModel layerSelModel,
                        StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
                        JMapPane mapPane, MapPaneToolBar toolBar) {

                super(layerSelModel);
                this.styledLayer = styledLayer;

                this.mapLayer = mapLayer;
                this.mapPane = mapPane;
                this.toolBar = toolBar;
        }

        /**
         * Called by {@link StyledLayerSelectionModel} when a the selection on other
         * selection components (map, chart, ...) has changed. When calling this
         * 
         * method changes the {@link MapLayer} selection according to the
         * {@link StyledLayerSelectionModel} selection.
         * 
         * @param evt
         *            an event
         */
        @Override
        public void propertyChange(PropertyChangeEvent evt) {

                if (!isEnabled())
                        return;

                if (!(evt instanceof StyledLayerSelectionEvent))
                        return;
                StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
                // Only react on own layer and ignore events invoked by
                // this component itself
                if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)
                        return;
                // Apply new selection on table (except this event is one of
                // some more events)
                Vector<String> newSelection = layerSelModel.getSelection();
                if (newSelection == null)
                        return;

                // Avoid event circles in valueChanged(..)
                selectionChangeCausedByMe = true;

                changeLayerStyle(newSelection);

                // Danger of event circles in valueChanged(..) banned
                selectionChangeCausedByMe = false;
        }

        /**
         * Changes the Style of the {@link MapLayer} to reflect changes of the
         * selection.
         * 
         * @param newSelection
         *            A {@link Vector} of SimpleFeature-IDs that are selected.
         */
        private void changeLayerStyle(final Vector<String> newSelection) {
                try {
//                      GTRenderer r = mapPane.getRenderer();
//                      if (r instanceof ShapefileRenderer) {
//                              ShapefileRenderer sfr = (ShapefileRenderer)r;
//                              sfr.setCaching(false);
//                      }
//                      
                        
                        Style originalStyle = mapLayer.getStyle();
                        if (newSelection.isEmpty()) {

                                // Check if the Style contains a SELECTION FTS
                                
                                FeatureTypeStyle[] clone = originalStyle.featureTypeStyles().toArray( new FeatureTypeStyle[] {} ).clone();
                                
                                for (FeatureTypeStyle fts : clone) {
                                        if (fts.getName() != null
                                                        && fts.getName().equals(SELECTION_STYLING)) {
                                                originalStyle.featureTypeStyles().remove(fts);
                                                
                                                mapPane.refresh();

                                                return;
                                        }
                                }

                        } else {
                                LOGGER.debug("SELECTION .. change style");

                                // We take Style from the MapLayer that is displayed at the
                                // moment. We do not use the styledLayer.getStyle, because in
                                // the atlas, this always return the default style, but
                                // additional styles might be selected.
                                // Taking the style from the mapLayer indicated, that we have to
                                // remove any selection rules first.

                                FeatureTypeStyle selectionFTStyle = StylingUtil
                                                .createSelectionStyle(styledLayer.getGeoObject());

                                selectionFTStyle.setName(SELECTION_STYLING);

                                /**
                                 * 
                                 * Add a Filter to the selectionMapStyle, so that it is only
                                 * used on objects that are selected. <br/>
                                 * 
                                 * Note 1:<br/>
                                 * It is NEVER allowed to GeoTools extend Filter () { .. } (and
                                 * write tests into the evaluate block). Especially for the
                                 * ShapeFileRenderer, we may only use a geotools Filter.<br/>
                                 * 
                                 * Note 2:<br/>
                                 * The FilterUtil.FILTER_FAC2.id(fids) wants a set of
                                 * FeatureId-Objects!
                                 */

                                Set<FeatureId> fids = new HashSet<FeatureId>();
                                for (String fid : newSelection) {
                                        fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
                                }

                                selectionFTStyle.rules().get(0).setFilter(
                                                FilterUtil.FILTER_FAC2.id(fids));

                                // Maybe there has already been another selection
                                // FeatureTypeStyle... Let's replace it...
                                boolean foundAndReplaced = false;
                                for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
                                        if (fts.getName() != null
                                                        && fts.getName().equals(SELECTION_STYLING)) {
                                                foundAndReplaced = true;
                                                fts.rules().clear();
                                                fts.rules().addAll(selectionFTStyle.rules());
                                                break;
                                        }
                                }
                                if (!foundAndReplaced) {
                                        originalStyle.featureTypeStyles().add(selectionFTStyle);
                                }

                                // Refresh the map
                                mapPane.refresh();
                        }
//                      
//                      if (r instanceof ShapefileRenderer) {
//                              ShapefileRenderer sfr = (ShapefileRenderer)r;
//                              sfr.setCaching(true);
//                      }


                } catch (Exception e) {
                        LOGGER.error("Error while trying to create a selection style", e);
                }
        }

        /**
         * Used to synchronize {@link FeatureSelectedEvent}s with the
         * {@link StyledFeatureLayerSelectionModel}
         */
        @Override
        public void performMapPaneEvent(JMapPaneEvent e) {

                // Ignore event if it is caused by us or the synchronizer is disabled.
                if (!isEnabled() || selectionChangeCausedByMe)
                        return;

                if (!(e instanceof FeatureSelectedEvent)) {
                        // LOGGER.debug("Ignoring event " + e);
                        return;
                }

                /**
                 * Only listen to FeatureSelectedEvents if an appropriate tool is
                 * selected.
                 */
                final int selectedTool = toolBar.getSelectedTool();
                if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
                                && selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
                        return;
                }

                // only listen to events directly coming from JMapPane
                // selection (ignore selections from FilterDialog)
                if (e.getSourceObject() != this.mapPane)
                        return;

                FeatureSelectedEvent fse = (FeatureSelectedEvent) e;

                /**
                 * Checking, that the FeatureSelectedEvent actually contains features
                 * from this layer
                 */
                final String sourceID = fse.getSourceLayer().getTitle();
                final String syncForID = mapLayer.getTitle();
                if (sourceID != null && syncForID != null
                                && !sourceID.equals(syncForID)) {
                        LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
                        return;
                }

                LOGGER.debug("do event " + fse);

                // Avoid event circles in propertyChange(..)
                selectionChangeCausedByMe = true;

                Iterator<SimpleFeature> fi = fse.getSelectionResult().iterator();

                // reset the selection of the DpLayerSelectionModel
                // layerSelModel.setValueIsAdjusting(true);

                if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
                        layerSelModel.setValueIsAdjusting(true);

                        for (int fIdx = 0; fi.hasNext(); fIdx++) {
                                SimpleFeature f = fi.next();
                                layerSelModel.addSelection(f.getID());
                        }
                        layerSelModel.setValueIsAdjusting(false);
                } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
                        layerSelModel.setValueIsAdjusting(true);
                        layerSelModel.clearSelection();

                        for (int fIdx = 0; fi.hasNext(); fIdx++) {
                                SimpleFeature f = fi.next();
                                layerSelModel.addSelection(f.getID());
                        }

                        // LOGGER.debug("Setting selection to " + fi.());

                        layerSelModel.setValueIsAdjusting(false);
                } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
                        layerSelModel.setValueIsAdjusting(true);
                        for (int fIdx = 0; fi.hasNext(); fIdx++) {
                                SimpleFeature f = fi.next();
                                layerSelModel.removeSelection(f.getID());
                        }
                        layerSelModel.setValueIsAdjusting(false);
                }

                // Show selected features in the map, which is not automatically done by
                // the origin: FeatureSelectedEvent
                changeLayerStyle(layerSelModel.getSelection());

                // Danger of event circles in propertyChange(..) banned
                selectionChangeCausedByMe = false;
        }

}
1	/*******************************************************************************
2	* Copyright (c) 2009 Martin O. J. Schmitz.
3	*
4	* This file is part of the SCHMITZM library - a collection of utility
5	* classes based on Java 1.6, focusing (not only) on Java Swing
6	* and the Geotools library.
7	*
8	* The SCHMITZM project is hosted at:
9	* http://wald.intevation.org/projects/schmitzm/
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU Lesser General Public License
13	* as published by the Free Software Foundation; either version 3
14	* of the License, or (at your option) any later version.
15	*
16	* This program is distributed in the hope that it will be useful,
17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	* GNU General Public License for more details.
20	*
21	* You should have received a copy of the GNU Lesser General Public License (license.txt)
22	* along with this program; if not, write to the Free Software
23	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24	* or try this link: http://www.gnu.org/licenses/lgpl.html
25	*
26	* Contributors:
27	* Martin O. J. Schmitz - initial API and implementation
28	* Stefan A. Krüger - additional utility classes
29	******************************************************************************/
30	/**
31	Copyright 2008 Stefan Alfons Krüger
32
33	atlas-framework - This file is part of the Atlas Framework
34
35	This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
36	This library 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 Lesser General Public License for more details.
37	You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
38
39	Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
40	Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.
41	Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.
42	**/
43	package skrueger.geotools.selection;
44
45	import java.beans.PropertyChangeEvent;
46	import java.beans.PropertyChangeListener;
47	import java.util.HashSet;
48	import java.util.Iterator;
49	import java.util.Set;
50	import java.util.Vector;
51
52	import javax.swing.JTable;
53	import javax.swing.ListSelectionModel;
54	import javax.swing.event.ListSelectionListener;
55
56	import org.geotools.map.MapLayer;
57	import org.geotools.styling.FeatureTypeStyle;
58	import org.geotools.styling.Style;
59	import org.opengis.feature.simple.SimpleFeature;
60	import org.opengis.filter.identity.FeatureId;
61
62	import schmitzm.geotools.FilterUtil;
63	import schmitzm.geotools.gui.JMapPane;
64	import schmitzm.geotools.map.event.FeatureSelectedEvent;
65	import schmitzm.geotools.map.event.JMapPaneEvent;
66	import schmitzm.geotools.map.event.JMapPaneListener;
67	import schmitzm.geotools.styling.StylingUtil;
68	import skrueger.geotools.MapPaneToolBar;
69	import skrueger.geotools.StyledLayerInterface;
70
71	/**
72	* This class keeps the selection of a (feature) {@link JTable} synchronized
73	* with the {@link StyledLayerSelectionModel} of a layer. This is done by
74	* implementing:
75	* <ul>
76	* <li>a {@link PropertyChangeListener} which listens to the
77	* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
78	* selection</li>
79	* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
80	* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
81	* </ul>
82	* After creating, the instance of this synchronizer must be added as listener
83	* to both, the {@link StyledLayerSelectionModel} and the table's
84	* {@link ListSelectionModel}.
85	*
86	* @author <a href="mailto:[email protected]">Martin Schmitz</a>
87	* (University of Bonn/Germany)
88	*/
89	public class FeatureMapLayerSelectionSynchronizer extends
90	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
91	implements JMapPaneListener {
92	public static final String SELECTION_STYLING = "SELECTION";
93	/**
94	* Holds the {@link MapLayer} to keep synchronized with the layer selection
95	* model.
96	*/
97	protected final MapLayer mapLayer;
98	protected final StyledLayerInterface<?> styledLayer;
99	protected final JMapPane mapPane;
100	private final MapPaneToolBar toolBar;
101
102	/**
103	* Creates a new synchronizer
104	*
105	* @param layerSelModel
106	* layer selection model to keep synchronized with the
107	* {@link MapLayer}
108	*
109	* @param mapLayer
110	* {@link MapLayer} to keep synchronized with.
111	*/
112	public FeatureMapLayerSelectionSynchronizer(
113	StyledFeatureLayerSelectionModel layerSelModel,
114	StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
115	JMapPane mapPane, MapPaneToolBar toolBar) {
116
117	super(layerSelModel);
118	this.styledLayer = styledLayer;
119
120	this.mapLayer = mapLayer;
121	this.mapPane = mapPane;
122	this.toolBar = toolBar;
123	}
124
125	/**
126	* Called by {@link StyledLayerSelectionModel} when a the selection on other
127	* selection components (map, chart, ...) has changed. When calling this
128	*
129	* method changes the {@link MapLayer} selection according to the
130	* {@link StyledLayerSelectionModel} selection.
131	*
132	* @param evt
133	* an event
134	*/
135	@Override
136	public void propertyChange(PropertyChangeEvent evt) {
137
138	if (!isEnabled())
139	return;
140
141	if (!(evt instanceof StyledLayerSelectionEvent))
142	return;
143	StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
144	// Only react on own layer and ignore events invoked by
145	// this component itself
146	if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
147	return;
148	// Apply new selection on table (except this event is one of
149	// some more events)
150	Vector<String> newSelection = layerSelModel.getSelection();
151	if (newSelection == null)
152	return;
153
154	// Avoid event circles in valueChanged(..)
155	selectionChangeCausedByMe = true;
156
157	changeLayerStyle(newSelection);
158
159	// Danger of event circles in valueChanged(..) banned
160	selectionChangeCausedByMe = false;
161	}
162
163	/**
164	* Changes the Style of the {@link MapLayer} to reflect changes of the
165	* selection.
166	*
167	* @param newSelection
168	* A {@link Vector} of SimpleFeature-IDs that are selected.
169	*/
170	private void changeLayerStyle(final Vector<String> newSelection) {
171	try {
172	// GTRenderer r = mapPane.getRenderer();
173	// if (r instanceof ShapefileRenderer) {
174	// ShapefileRenderer sfr = (ShapefileRenderer)r;
175	// sfr.setCaching(false);
176	// }
177	//
178
179	Style originalStyle = mapLayer.getStyle();
180	if (newSelection.isEmpty()) {
181
182	// Check if the Style contains a SELECTION FTS
183
184	FeatureTypeStyle[] clone = originalStyle.featureTypeStyles().toArray( new FeatureTypeStyle[] {} ).clone();
185
186	for (FeatureTypeStyle fts : clone) {
187	if (fts.getName() != null
188	&& fts.getName().equals(SELECTION_STYLING)) {
189	originalStyle.featureTypeStyles().remove(fts);
190
191	mapPane.refresh();
192
193	return;
194	}
195	}
196
197	} else {
198	LOGGER.debug("SELECTION .. change style");
199
200	// We take Style from the MapLayer that is displayed at the
201	// moment. We do not use the styledLayer.getStyle, because in
202	// the atlas, this always return the default style, but
203	// additional styles might be selected.
204	// Taking the style from the mapLayer indicated, that we have to
205	// remove any selection rules first.
206
207	FeatureTypeStyle selectionFTStyle = StylingUtil
208	.createSelectionStyle(styledLayer.getGeoObject());
209
210	selectionFTStyle.setName(SELECTION_STYLING);
211
212	/**
213	*
214	* Add a Filter to the selectionMapStyle, so that it is only
215	* used on objects that are selected. <br/>
216	*
217	* Note 1:<br/>
218	* It is NEVER allowed to GeoTools extend Filter () { .. } (and
219	* write tests into the evaluate block). Especially for the
220	* ShapeFileRenderer, we may only use a geotools Filter.<br/>
221	*
222	* Note 2:<br/>
223	* The FilterUtil.FILTER_FAC2.id(fids) wants a set of
224	* FeatureId-Objects!
225	*/
226
227	Set<FeatureId> fids = new HashSet<FeatureId>();
228	for (String fid : newSelection) {
229	fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
230	}
231
232	selectionFTStyle.rules().get(0).setFilter(
233	FilterUtil.FILTER_FAC2.id(fids));
234
235	// Maybe there has already been another selection
236	// FeatureTypeStyle... Let's replace it...
237	boolean foundAndReplaced = false;
238	for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
239	if (fts.getName() != null
240	&& fts.getName().equals(SELECTION_STYLING)) {
241	foundAndReplaced = true;
242	fts.rules().clear();
243	fts.rules().addAll(selectionFTStyle.rules());
244	break;
245	}
246	}
247	if (!foundAndReplaced) {
248	originalStyle.featureTypeStyles().add(selectionFTStyle);
249	}
250
251	// Refresh the map
252	mapPane.refresh();
253	}
254	//
255	// if (r instanceof ShapefileRenderer) {
256	// ShapefileRenderer sfr = (ShapefileRenderer)r;
257	// sfr.setCaching(true);
258	// }
259
260
261	} catch (Exception e) {
262	LOGGER.error("Error while trying to create a selection style", e);
263	}
264	}
265
266	/**
267	* Used to synchronize {@link FeatureSelectedEvent}s with the
268	* {@link StyledFeatureLayerSelectionModel}
269	*/
270	@Override
271	public void performMapPaneEvent(JMapPaneEvent e) {
272
273	// Ignore event if it is caused by us or the synchronizer is disabled.
274	if (!isEnabled() \|\| selectionChangeCausedByMe)
275	return;
276
277	if (!(e instanceof FeatureSelectedEvent)) {
278	// LOGGER.debug("Ignoring event " + e);
279	return;
280	}
281
282	/**
283	* Only listen to FeatureSelectedEvents if an appropriate tool is
284	* selected.
285	*/
286	final int selectedTool = toolBar.getSelectedTool();
287	if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
288	&& selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
289	&& selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
290	return;
291	}
292
293	// only listen to events directly coming from JMapPane
294	// selection (ignore selections from FilterDialog)
295	if (e.getSourceObject() != this.mapPane)
296	return;
297
298	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
299
300	/**
301	* Checking, that the FeatureSelectedEvent actually contains features
302	* from this layer
303	*/
304	final String sourceID = fse.getSourceLayer().getTitle();
305	final String syncForID = mapLayer.getTitle();
306	if (sourceID != null && syncForID != null
307	&& !sourceID.equals(syncForID)) {
308	LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
309	return;
310	}
311
312	LOGGER.debug("do event " + fse);
313
314	// Avoid event circles in propertyChange(..)
315	selectionChangeCausedByMe = true;
316
317	Iterator<SimpleFeature> fi = fse.getSelectionResult().iterator();
318
319	// reset the selection of the DpLayerSelectionModel
320	// layerSelModel.setValueIsAdjusting(true);
321
322	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
323	layerSelModel.setValueIsAdjusting(true);
324
325	for (int fIdx = 0; fi.hasNext(); fIdx++) {
326	SimpleFeature f = fi.next();
327	layerSelModel.addSelection(f.getID());
328	}
329	layerSelModel.setValueIsAdjusting(false);
330	} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
331	layerSelModel.setValueIsAdjusting(true);
332	layerSelModel.clearSelection();
333
334	for (int fIdx = 0; fi.hasNext(); fIdx++) {
335	SimpleFeature f = fi.next();
336	layerSelModel.addSelection(f.getID());
337	}
338
339	// LOGGER.debug("Setting selection to " + fi.());
340
341	layerSelModel.setValueIsAdjusting(false);
342	} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
343	layerSelModel.setValueIsAdjusting(true);
344	for (int fIdx = 0; fi.hasNext(); fIdx++) {
345	SimpleFeature f = fi.next();
346	layerSelModel.removeSelection(f.getID());
347	}
348	layerSelModel.setValueIsAdjusting(false);
349	}
350
351	// Show selected features in the map, which is not automatically done by
352	// the origin: FeatureSelectedEvent
353	changeLayerStyle(layerSelModel.getSelection());
354
355	// Danger of event circles in propertyChange(..) banned
356	selectionChangeCausedByMe = false;
357	}
358
359	}
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