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.Arrays;
import java.util.Collection;
import java.util.HashSet;
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 schmitzm.lang.LangUtil;
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) {
                Style selectionMapStyle = null;
                try {
                        if (newSelection.isEmpty()) {

                                selectionMapStyle = styledLayer.getStyle();
                                // LOGGER.debug("NO SELECTION .. set to original style directly");

                        } 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.
                                Style originalStyle = mapLayer.getStyle();

                                // TODO The default style is not good here. We need
                                // .createSelectionStyle(normalStyle, geoObj);
                                selectionMapStyle = StylingUtil
                                                .createSelectionStyle(styledLayer.getGeoObject());
                                // selectionMapStyle = StylingUtil
                                // .createDefaultStyle(styledLayer.getGeoObject());

                                selectionMapStyle.getFeatureTypeStyles()[0]
                                                .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));
                                }

                                selectionMapStyle.getFeatureTypeStyles()[0].getRules()[0]
                                                .setFilter(FilterUtil.FILTER_FAC2.id(fids));

                                FeatureTypeStyle[] originalFeatureTypeStyles = originalStyle
                                                .getFeatureTypeStyles();
                                FeatureTypeStyle[] newFeatureTypes;
                                if (originalFeatureTypeStyles[originalFeatureTypeStyles.length - 1]
                                                .getName() != null
                                                && originalFeatureTypeStyles[originalFeatureTypeStyles.length - 1]
                                                                .getName().equals(SELECTION_STYLING)) {
                                        newFeatureTypes = Arrays.copyOf(originalFeatureTypeStyles,
                                                        originalFeatureTypeStyles.length - 1);
                                } else {
                                        newFeatureTypes = originalFeatureTypeStyles;
                                }

                                // The last FTS is the selection FTS
                                newFeatureTypes = LangUtil.extendArray(newFeatureTypes,
                                                selectionMapStyle.getFeatureTypeStyles());

                                selectionMapStyle.setFeatureTypeStyles(newFeatureTypes);

                        }

                        mapLayer.setStyle(selectionMapStyle);
                        mapPane.refresh();
                } 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;

                Collection<SimpleFeature> selectionResult = (Collection<SimpleFeature>) fse
                                .getSelectionResult();

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

                if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
                        layerSelModel.setValueIsAdjusting(true);
                        for (SimpleFeature f : selectionResult) {
                                layerSelModel.addSelection(f.getID());
                        }
                        layerSelModel.setValueIsAdjusting(false);
                } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
                        layerSelModel.setValueIsAdjusting(true);
                        layerSelModel.clearSelection();

                        for (SimpleFeature f : selectionResult) {
                                layerSelModel.addSelection(f.getID());
                        }

                        LOGGER.debug("Setting selection to " + selectionResult.size());
                        layerSelModel.setValueIsAdjusting(false);
                } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
                        layerSelModel.setValueIsAdjusting(true);
                        for (SimpleFeature f : selectionResult) {
                                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.Arrays;
48	import java.util.Collection;
49	import java.util.HashSet;
50	import java.util.Set;
51	import java.util.Vector;
52
53	import javax.swing.JTable;
54	import javax.swing.ListSelectionModel;
55	import javax.swing.event.ListSelectionListener;
56
57	import org.geotools.map.MapLayer;
58	import org.geotools.styling.FeatureTypeStyle;
59	import org.geotools.styling.Style;
60	import org.opengis.feature.simple.SimpleFeature;
61	import org.opengis.filter.identity.FeatureId;
62
63	import schmitzm.geotools.FilterUtil;
64	import schmitzm.geotools.gui.JMapPane;
65	import schmitzm.geotools.map.event.FeatureSelectedEvent;
66	import schmitzm.geotools.map.event.JMapPaneEvent;
67	import schmitzm.geotools.map.event.JMapPaneListener;
68	import schmitzm.geotools.styling.StylingUtil;
69	import schmitzm.lang.LangUtil;
70	import skrueger.geotools.MapPaneToolBar;
71	import skrueger.geotools.StyledLayerInterface;
72
73	/**
74	* This class keeps the selection of a (feature) {@link JTable} synchronized
75	* with the {@link StyledLayerSelectionModel} of a layer. This is done by
76	* implementing:
77	* <ul>
78	* <li>a {@link PropertyChangeListener} which listens to the
79	* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
80	* selection</li>
81	* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
82	* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
83	* </ul>
84	* After creating, the instance of this synchronizer must be added as listener
85	* to both, the {@link StyledLayerSelectionModel} and the table's
86	* {@link ListSelectionModel}.
87	*
88	* @author <a href="mailto:[email protected]">Martin Schmitz</a>
89	* (University of Bonn/Germany)
90	*/
91	public class FeatureMapLayerSelectionSynchronizer extends
92	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
93	implements JMapPaneListener {
94	public static final String SELECTION_STYLING = "SELECTION";
95	/**
96	* Holds the {@link MapLayer} to keep synchronized with the layer selection
97	* model.
98	*/
99	protected final MapLayer mapLayer;
100	protected final StyledLayerInterface<?> styledLayer;
101	protected final JMapPane mapPane;
102	private final MapPaneToolBar toolBar;
103
104	/**
105	* Creates a new synchronizer
106	*
107	* @param layerSelModel
108	* layer selection model to keep synchronized with the
109	* {@link MapLayer}
110	*
111	* @param mapLayer
112	* {@link MapLayer} to keep synchronized with.
113	*/
114	public FeatureMapLayerSelectionSynchronizer(
115	StyledFeatureLayerSelectionModel layerSelModel,
116	StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
117	JMapPane mapPane, MapPaneToolBar toolBar) {
118
119	super(layerSelModel);
120	this.styledLayer = styledLayer;
121
122	this.mapLayer = mapLayer;
123	this.mapPane = mapPane;
124	this.toolBar = toolBar;
125	}
126
127	/**
128	* Called by {@link StyledLayerSelectionModel} when a the selection on other
129	* selection components (map, chart, ...) has changed. When calling this
130	*
131	* method changes the {@link MapLayer} selection according to the
132	* {@link StyledLayerSelectionModel} selection.
133	*
134	* @param evt
135	* an event
136	*/
137	@Override
138	public void propertyChange(PropertyChangeEvent evt) {
139
140	if (!isEnabled())
141	return;
142
143	if (!(evt instanceof StyledLayerSelectionEvent))
144	return;
145	StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
146	// Only react on own layer and ignore events invoked by
147	// this component itself
148	if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
149	return;
150	// Apply new selection on table (except this event is one of
151	// some more events)
152	Vector<String> newSelection = layerSelModel.getSelection();
153	if (newSelection == null)
154	return;
155
156	// Avoid event circles in valueChanged(..)
157	selectionChangeCausedByMe = true;
158
159	changeLayerStyle(newSelection);
160
161	// Danger of event circles in valueChanged(..) banned
162	selectionChangeCausedByMe = false;
163	}
164
165	/**
166	* Changes the Style of the {@link MapLayer} to reflect changes of the
167	* selection.
168	*
169	* @param newSelection
170	* A {@link Vector} of SimpleFeature-IDs that are selected.
171	*/
172	private void changeLayerStyle(final Vector<String> newSelection) {
173	Style selectionMapStyle = null;
174	try {
175	if (newSelection.isEmpty()) {
176
177	selectionMapStyle = styledLayer.getStyle();
178	// LOGGER.debug("NO SELECTION .. set to original style directly");
179
180	} else {
181	LOGGER.debug("SELECTION .. change style");
182
183	// We take Style from the MapLayer that is displayed at the
184	// moment. We do not use the styledLayer.getStyle, because in
185	// the atlas, this always return the default style, but
186	// additional styles might be selected.
187	// Taking the style from the mapLayer indicated, that we have to
188	// remove any selection rules first.
189	Style originalStyle = mapLayer.getStyle();
190
191	// TODO The default style is not good here. We need
192	// .createSelectionStyle(normalStyle, geoObj);
193	selectionMapStyle = StylingUtil
194	.createSelectionStyle(styledLayer.getGeoObject());
195	// selectionMapStyle = StylingUtil
196	// .createDefaultStyle(styledLayer.getGeoObject());
197
198	selectionMapStyle.getFeatureTypeStyles()[0]
199	.setName(SELECTION_STYLING);
200
201	/**
202	*
203	* Add a Filter to the selectionMapStyle, so that it is only
204	* used on objects that are selected. <br/>
205	*
206	* Note 1:<br/>
207	* It is NEVER allowed to GeoTools extend Filter () { .. } (and write
208	* tests into the evaluate block). Especially for the
209	* ShapeFileRenderer, we may only use a geotools Filter.<br/>
210	*
211	* Note 2:<br/>
212	* The FilterUtil.FILTER_FAC2.id(fids) wants a set of FeatureId-Objects!
213	*/
214
215	Set<FeatureId> fids = new HashSet<FeatureId>();
216	for (String fid : newSelection) {
217	fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
218	}
219
220	selectionMapStyle.getFeatureTypeStyles()[0].getRules()[0]
221	.setFilter(FilterUtil.FILTER_FAC2.id(fids));
222
223	FeatureTypeStyle[] originalFeatureTypeStyles = originalStyle
224	.getFeatureTypeStyles();
225	FeatureTypeStyle[] newFeatureTypes;
226	if (originalFeatureTypeStyles[originalFeatureTypeStyles.length - 1]
227	.getName() != null
228	&& originalFeatureTypeStyles[originalFeatureTypeStyles.length - 1]
229	.getName().equals(SELECTION_STYLING)) {
230	newFeatureTypes = Arrays.copyOf(originalFeatureTypeStyles,
231	originalFeatureTypeStyles.length - 1);
232	} else {
233	newFeatureTypes = originalFeatureTypeStyles;
234	}
235
236	// The last FTS is the selection FTS
237	newFeatureTypes = LangUtil.extendArray(newFeatureTypes,
238	selectionMapStyle.getFeatureTypeStyles());
239
240	selectionMapStyle.setFeatureTypeStyles(newFeatureTypes);
241
242	}
243
244	mapLayer.setStyle(selectionMapStyle);
245	mapPane.refresh();
246	} catch (Exception e) {
247	LOGGER.error("Error while trying to create a selection style", e);
248	}
249	}
250
251	/**
252	* Used to synchronize {@link FeatureSelectedEvent}s with the
253	* {@link StyledFeatureLayerSelectionModel}
254	*/
255	@Override
256	public void performMapPaneEvent(JMapPaneEvent e) {
257
258	// Ignore event if it is caused by us or the synchronizer is disabled.
259	if (!isEnabled() \|\| selectionChangeCausedByMe)
260	return;
261
262	if (!(e instanceof FeatureSelectedEvent)) {
263	// LOGGER.debug("Ignoring event " + e);
264	return;
265	}
266
267	/**
268	* Only listen to FeatureSelectedEvents if an appropriate tool is
269	* selected.
270	*/
271	final int selectedTool = toolBar.getSelectedTool();
272	if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
273	&& selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
274	&& selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
275	return;
276	}
277
278	// only listen to events directly coming from JMapPane
279	// selection (ignore selections from FilterDialog)
280	if (e.getSourceObject() != this.mapPane)
281	return;
282
283	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
284
285	/**
286	* Checking, that the FeatureSelectedEvent actually contains features
287	* from this layer
288	*/
289	final String sourceID = fse.getSourceLayer().getTitle();
290	final String syncForID = mapLayer.getTitle();
291	if (sourceID != null && syncForID != null
292	&& !sourceID.equals(syncForID)) {
293	LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
294	return;
295	}
296
297	LOGGER.debug("do event " + fse);
298
299	// Avoid event circles in propertyChange(..)
300	selectionChangeCausedByMe = true;
301
302	Collection<SimpleFeature> selectionResult = (Collection<SimpleFeature>) fse
303	.getSelectionResult();
304
305	// reset the selection of the DpLayerSelectionModel
306	// layerSelModel.setValueIsAdjusting(true);
307
308	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
309	layerSelModel.setValueIsAdjusting(true);
310	for (SimpleFeature f : selectionResult) {
311	layerSelModel.addSelection(f.getID());
312	}
313	layerSelModel.setValueIsAdjusting(false);
314	} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
315	layerSelModel.setValueIsAdjusting(true);
316	layerSelModel.clearSelection();
317
318	for (SimpleFeature f : selectionResult) {
319	layerSelModel.addSelection(f.getID());
320	}
321
322	LOGGER.debug("Setting selection to " + selectionResult.size());
323	layerSelModel.setValueIsAdjusting(false);
324	} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
325	layerSelModel.setValueIsAdjusting(true);
326	for (SimpleFeature f : selectionResult) {
327	layerSelModel.removeSelection(f.getID());
328	}
329	layerSelModel.setValueIsAdjusting(false);
330	}
331
332	// Show selected features in the map, which is not automatically done by
333	// the origin: FeatureSelectedEvent
334	changeLayerStyle(layerSelModel.getSelection());
335
336	// Danger of event circles in propertyChange(..) banned
337	selectionChangeCausedByMe = false;
338	}
339
340	}
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