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.awt.RenderingHints;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.HashMap;
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.feature.FeatureCollection;
import org.geotools.map.MapLayer;
import org.geotools.renderer.GTRenderer;
import org.geotools.renderer.label.LabelCacheImpl;
import org.geotools.renderer.lite.StreamingRenderer;
import org.geotools.styling.FeatureTypeStyle;
import org.geotools.styling.Style;
import org.geotools.styling.visitor.DuplicatingStyleVisitor;
import org.opengis.feature.simple.SimpleFeature;
import org.opengis.feature.simple.SimpleFeatureType;
import org.opengis.filter.identity.FeatureId;

import schmitzm.geotools.FilterUtil;
import schmitzm.geotools.GTUtil;
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;
        private final HashMap<Object, Object> defaultGTRenderingHints;

        /**
         * 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,
                        HashMap<Object, Object> defaultGTRenderingHints) {

                super(layerSelModel);
                this.styledLayer = styledLayer;

                this.mapLayer = mapLayer;
                this.mapPane = mapPane;
                this.toolBar = toolBar;
                if (defaultGTRenderingHints != null)
                        this.defaultGTRenderingHints = defaultGTRenderingHints;
                else
                        this.defaultGTRenderingHints = new HashMap<Object, Object>();
        }

        /**
         * 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 {

                        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);

                                                replaceRenderer();
                                                // 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));
                                }
                                
                                LOGGER.debug("The selection filter:"+fids);

                                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();

                                DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
                                dsv.visit(originalStyle);
                                Style newStyle = (Style) dsv.getCopy();

                                // Style newStyle = StylingUtil.STYLE_BUILDER.createStyle();
                                // newStyle.featureTypeStyles().addAll(originalStyle.featureTypeStyles());
                                mapLayer.setStyle(newStyle);

                                replaceRenderer();
                        }

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

        private void replaceRenderer() {
                //
                // // Has to be done before we apply the new Renderer
                // mapLayer.setStyle(style);

                GTRenderer oldRenderer = mapPane.getRenderer();

                /**
                 * Explicitly putting a new instance of LabelCacheDefault into the
                 * renderer instance, so JMapPane doesn't reuse the old one. This is
                 * very useful when changing the TextSymbolizer with AtlasStyler<br/>
                 * SK 9.7.09: It's not enought to user LabelCache.clear(). We can not
                 * reuse the old Renderer - better to create a new one!
                 */
                final GTRenderer newRenderer = GTUtil.createGTRenderer();

                final HashMap<Object, Object> rendererHints = defaultGTRenderingHints;
                rendererHints.put(StreamingRenderer.LABEL_CACHE_KEY,
                                new LabelCacheImpl());

                newRenderer.setRendererHints(rendererHints);
                mapPane.setRenderer(newRenderer);

                if (oldRenderer != null) {

                        RenderingHints java2DHints = oldRenderer.getJava2DHints();
                        if (java2DHints != null) {
                                newRenderer.setJava2DHints(java2DHints);
                        }

                        oldRenderer.setContext(null);
                        oldRenderer = null;
                }

                mapPane.refresh();

        }

        /**
         * 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;

                final FeatureCollection<SimpleFeatureType, SimpleFeature> selectionResult = fse
                                .getSelectionResult();
                Iterator<SimpleFeature> fi = selectionResult.iterator();
                try {

                        // 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);
                        }

                } finally {
                        selectionResult.close(fi);
                }

                // 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	alfonx	244	/*******************************************************************************
2			* Copyright (c) 2009 Martin O. J. Schmitz.
3			*
4			* This file is part of the SCHMITZM library - a collection of utility
5	alfonx	256	* classes based on Java 1.6, focusing (not only) on Java Swing
6	alfonx	244	* 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	alfonx	97	/**
31			Copyright 2008 Stefan Alfons Krüger
32	alfonx	409
33	alfonx	97	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	alfonx	419	import java.awt.RenderingHints;
46	alfonx	97	import java.beans.PropertyChangeEvent;
47			import java.beans.PropertyChangeListener;
48	alfonx	419	import java.util.HashMap;
49	alfonx	158	import java.util.HashSet;
50	alfonx	409	import java.util.Iterator;
51	alfonx	158	import java.util.Set;
52	alfonx	97	import java.util.Vector;
53
54			import javax.swing.JTable;
55			import javax.swing.ListSelectionModel;
56			import javax.swing.event.ListSelectionListener;
57
58	alfonx	455	import org.geotools.feature.FeatureCollection;
59	alfonx	97	import org.geotools.map.MapLayer;
60	alfonx	419	import org.geotools.renderer.GTRenderer;
61			import org.geotools.renderer.label.LabelCacheImpl;
62			import org.geotools.renderer.lite.StreamingRenderer;
63	alfonx	123	import org.geotools.styling.FeatureTypeStyle;
64	alfonx	97	import org.geotools.styling.Style;
65	alfonx	419	import org.geotools.styling.visitor.DuplicatingStyleVisitor;
66	mojays	325	import org.opengis.feature.simple.SimpleFeature;
67	alfonx	455	import org.opengis.feature.simple.SimpleFeatureType;
68	alfonx	158	import org.opengis.filter.identity.FeatureId;
69	alfonx	97
70	alfonx	158	import schmitzm.geotools.FilterUtil;
71	alfonx	438	import schmitzm.geotools.GTUtil;
72	alfonx	97	import schmitzm.geotools.gui.JMapPane;
73			import schmitzm.geotools.map.event.FeatureSelectedEvent;
74			import schmitzm.geotools.map.event.JMapPaneEvent;
75			import schmitzm.geotools.map.event.JMapPaneListener;
76			import schmitzm.geotools.styling.StylingUtil;
77	alfonx	111	import skrueger.geotools.MapPaneToolBar;
78	alfonx	224	import skrueger.geotools.StyledLayerInterface;
79	alfonx	97
80			/**
81			* This class keeps the selection of a (feature) {@link JTable} synchronized
82			* with the {@link StyledLayerSelectionModel} of a layer. This is done by
83			* implementing:
84			* <ul>
85			* <li>a {@link PropertyChangeListener} which listens to the
86			* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
87			* selection</li>
88			* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
89			* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
90			* </ul>
91			* After creating, the instance of this synchronizer must be added as listener
92			* to both, the {@link StyledLayerSelectionModel} and the table's
93			* {@link ListSelectionModel}.
94			*
95			* @author <a href="mailto:[email protected]">Martin Schmitz</a>
96			* (University of Bonn/Germany)
97			*/
98			public class FeatureMapLayerSelectionSynchronizer extends
99	alfonx	106	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
100			implements JMapPaneListener {
101	alfonx	111	public static final String SELECTION_STYLING = "SELECTION";
102	alfonx	97	/**
103			* Holds the {@link MapLayer} to keep synchronized with the layer selection
104			* model.
105			*/
106			protected final MapLayer mapLayer;
107	alfonx	224	protected final StyledLayerInterface<?> styledLayer;
108	alfonx	97	protected final JMapPane mapPane;
109	alfonx	111	private final MapPaneToolBar toolBar;
110	alfonx	419	private final HashMap<Object, Object> defaultGTRenderingHints;
111	alfonx	97
112			/**
113			* Creates a new synchronizer
114			*
115			* @param layerSelModel
116			* layer selection model to keep synchronized with the
117			* {@link MapLayer}
118			*
119			* @param mapLayer
120			* {@link MapLayer} to keep synchronized with.
121			*/
122			public FeatureMapLayerSelectionSynchronizer(
123			StyledFeatureLayerSelectionModel layerSelModel,
124	alfonx	224	StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
125	alfonx	455	JMapPane mapPane, MapPaneToolBar toolBar,
126			HashMap<Object, Object> defaultGTRenderingHints) {
127	alfonx	97
128			super(layerSelModel);
129	alfonx	224	this.styledLayer = styledLayer;
130	alfonx	97
131			this.mapLayer = mapLayer;
132			this.mapPane = mapPane;
133	alfonx	111	this.toolBar = toolBar;
134	alfonx	419	if (defaultGTRenderingHints != null)
135			this.defaultGTRenderingHints = defaultGTRenderingHints;
136	alfonx	455	else
137	alfonx	419	this.defaultGTRenderingHints = new HashMap<Object, Object>();
138	alfonx	97	}
139
140			/**
141			* Called by {@link StyledLayerSelectionModel} when a the selection on other
142			* selection components (map, chart, ...) has changed. When calling this
143			*
144			* method changes the {@link MapLayer} selection according to the
145			* {@link StyledLayerSelectionModel} selection.
146			*
147			* @param evt
148			* an event
149			*/
150			@Override
151			public void propertyChange(PropertyChangeEvent evt) {
152	alfonx	151
153			if (!isEnabled())
154			return;
155
156	alfonx	97	if (!(evt instanceof StyledLayerSelectionEvent))
157			return;
158			StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
159			// Only react on own layer and ignore events invoked by
160			// this component itself
161			if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
162			return;
163			// Apply new selection on table (except this event is one of
164			// some more events)
165	alfonx	111	Vector<String> newSelection = layerSelModel.getSelection();
166	alfonx	97	if (newSelection == null)
167			return;
168
169			// Avoid event circles in valueChanged(..)
170			selectionChangeCausedByMe = true;
171
172			changeLayerStyle(newSelection);
173
174			// Danger of event circles in valueChanged(..) banned
175			selectionChangeCausedByMe = false;
176			}
177
178	alfonx	151	/**
179			* Changes the Style of the {@link MapLayer} to reflect changes of the
180			* selection.
181			*
182			* @param newSelection
183	alfonx	318	* A {@link Vector} of SimpleFeature-IDs that are selected.
184	alfonx	151	*/
185	alfonx	111	private void changeLayerStyle(final Vector<String> newSelection) {
186	alfonx	97	try {
187	alfonx	455
188	alfonx	412	Style originalStyle = mapLayer.getStyle();
189	alfonx	97	if (newSelection.isEmpty()) {
190
191	alfonx	412	// Check if the Style contains a SELECTION FTS
192	alfonx	455
193			FeatureTypeStyle[] clone = originalStyle.featureTypeStyles()
194			.toArray(new FeatureTypeStyle[] {}).clone();
195
196	alfonx	412	for (FeatureTypeStyle fts : clone) {
197			if (fts.getName() != null
198			&& fts.getName().equals(SELECTION_STYLING)) {
199			originalStyle.featureTypeStyles().remove(fts);
200	alfonx	455
201	alfonx	419	replaceRenderer();
202	alfonx	455	// mapPane.refresh();
203	alfonx	106
204	alfonx	412	return;
205			}
206			}
207
208	alfonx	97	} else {
209	alfonx	100	LOGGER.debug("SELECTION .. change style");
210	alfonx	106
211	alfonx	123	// We take Style from the MapLayer that is displayed at the
212	alfonx	224	// moment. We do not use the styledLayer.getStyle, because in
213	alfonx	123	// the atlas, this always return the default style, but
214	alfonx	224	// additional styles might be selected.
215	alfonx	123	// Taking the style from the mapLayer indicated, that we have to
216	alfonx	125	// remove any selection rules first.
217	alfonx	101
218	alfonx	412	FeatureTypeStyle selectionFTStyle = StylingUtil
219	alfonx	224	.createSelectionStyle(styledLayer.getGeoObject());
220	alfonx	106
221	alfonx	412	selectionFTStyle.setName(SELECTION_STYLING);
222	alfonx	123
223	alfonx	158	/**
224			*
225			* Add a Filter to the selectionMapStyle, so that it is only
226			* used on objects that are selected. <br/>
227			*
228			* Note 1:<br/>
229	alfonx	409	* It is NEVER allowed to GeoTools extend Filter () { .. } (and
230			* write tests into the evaluate block). Especially for the
231	alfonx	158	* ShapeFileRenderer, we may only use a geotools Filter.<br/>
232			*
233			* Note 2:<br/>
234	alfonx	409	* The FilterUtil.FILTER_FAC2.id(fids) wants a set of
235			* FeatureId-Objects!
236	alfonx	158	*/
237	alfonx	106
238	alfonx	158	Set<FeatureId> fids = new HashSet<FeatureId>();
239			for (String fid : newSelection) {
240			fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
241			}
242	alfonx	476
243			LOGGER.debug("The selection filter:"+fids);
244	alfonx	106
245	alfonx	412	selectionFTStyle.rules().get(0).setFilter(
246			FilterUtil.FILTER_FAC2.id(fids));
247	alfonx	106
248	alfonx	412	// Maybe there has already been another selection
249			// FeatureTypeStyle... Let's replace it...
250			boolean foundAndReplaced = false;
251			for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
252			if (fts.getName() != null
253			&& fts.getName().equals(SELECTION_STYLING)) {
254			foundAndReplaced = true;
255			fts.rules().clear();
256			fts.rules().addAll(selectionFTStyle.rules());
257			break;
258			}
259	alfonx	123	}
260	alfonx	412	if (!foundAndReplaced) {
261			originalStyle.featureTypeStyles().add(selectionFTStyle);
262			}
263	alfonx	151
264	alfonx	412	// Refresh the map
265	alfonx	455	// mapPane.refresh();
266
267	alfonx	419	DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
268			dsv.visit(originalStyle);
269	alfonx	455	Style newStyle = (Style) dsv.getCopy();
270
271			// Style newStyle = StylingUtil.STYLE_BUILDER.createStyle();
272			// newStyle.featureTypeStyles().addAll(originalStyle.featureTypeStyles());
273	alfonx	419	mapLayer.setStyle(newStyle);
274	alfonx	455
275	alfonx	419	replaceRenderer();
276	alfonx	97	}
277
278			} catch (Exception e) {
279			LOGGER.error("Error while trying to create a selection style", e);
280			}
281			}
282
283	alfonx	419	private void replaceRenderer() {
284	alfonx	455	//
285			// // Has to be done before we apply the new Renderer
286			// mapLayer.setStyle(style);
287	alfonx	419
288			GTRenderer oldRenderer = mapPane.getRenderer();
289
290			/**
291			* Explicitly putting a new instance of LabelCacheDefault into the
292			* renderer instance, so JMapPane doesn't reuse the old one. This is
293			* very useful when changing the TextSymbolizer with AtlasStyler<br/>
294			* SK 9.7.09: It's not enought to user LabelCache.clear(). We can not
295			* reuse the old Renderer - better to create a new one!
296			*/
297	alfonx	440	final GTRenderer newRenderer = GTUtil.createGTRenderer();
298	alfonx	419
299			final HashMap<Object, Object> rendererHints = defaultGTRenderingHints;
300			rendererHints.put(StreamingRenderer.LABEL_CACHE_KEY,
301			new LabelCacheImpl());
302
303			newRenderer.setRendererHints(rendererHints);
304			mapPane.setRenderer(newRenderer);
305
306			if (oldRenderer != null) {
307	alfonx	455
308	alfonx	419	RenderingHints java2DHints = oldRenderer.getJava2DHints();
309			if (java2DHints != null) {
310	alfonx	427	newRenderer.setJava2DHints(java2DHints);
311	alfonx	419	}
312	alfonx	455
313	alfonx	419	oldRenderer.setContext(null);
314			oldRenderer = null;
315			}
316	alfonx	455
317	alfonx	419	mapPane.refresh();
318
319			}
320
321	alfonx	151	/**
322			* Used to synchronize {@link FeatureSelectedEvent}s with the
323			* {@link StyledFeatureLayerSelectionModel}
324			*/
325	alfonx	97	@Override
326			public void performMapPaneEvent(JMapPaneEvent e) {
327	alfonx	106
328	alfonx	151	// Ignore event if it is caused by us or the synchronizer is disabled.
329			if (!isEnabled() \|\| selectionChangeCausedByMe)
330			return;
331
332			if (!(e instanceof FeatureSelectedEvent)) {
333			// LOGGER.debug("Ignoring event " + e);
334			return;
335			}
336
337	alfonx	111	/**
338	alfonx	151	* Only listen to FeatureSelectedEvents if an appropriate tool is
339	alfonx	111	* selected.
340			*/
341			final int selectedTool = toolBar.getSelectedTool();
342			if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
343			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
344			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
345			return;
346			}
347
348	mojays	109	// only listen to events directly coming from JMapPane
349			// selection (ignore selections from FilterDialog)
350	alfonx	111	if (e.getSourceObject() != this.mapPane)
351			return;
352
353	alfonx	97	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
354
355	alfonx	151	/**
356	alfonx	158	* Checking, that the FeatureSelectedEvent actually contains features
357			* from this layer
358	alfonx	151	*/
359			final String sourceID = fse.getSourceLayer().getTitle();
360			final String syncForID = mapLayer.getTitle();
361			if (sourceID != null && syncForID != null
362	alfonx	158	&& !sourceID.equals(syncForID)) {
363			LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
364	alfonx	97	return;
365	alfonx	151	}
366	alfonx	97
367	alfonx	476	// LOGGER.debug("do event " + fse);
368	alfonx	111
369	alfonx	97	// Avoid event circles in propertyChange(..)
370			selectionChangeCausedByMe = true;
371
372	alfonx	455	final FeatureCollection<SimpleFeatureType, SimpleFeature> selectionResult = fse
373			.getSelectionResult();
374			Iterator<SimpleFeature> fi = selectionResult.iterator();
375			try {
376	alfonx	97
377	alfonx	455	// reset the selection of the DpLayerSelectionModel
378			// layerSelModel.setValueIsAdjusting(true);
379	alfonx	97
380	alfonx	455	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
381			layerSelModel.setValueIsAdjusting(true);
382	alfonx	409
383	alfonx	455	for (int fIdx = 0; fi.hasNext(); fIdx++) {
384			SimpleFeature f = fi.next();
385			layerSelModel.addSelection(f.getID());
386			}
387			layerSelModel.setValueIsAdjusting(false);
388			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
389			layerSelModel.setValueIsAdjusting(true);
390			layerSelModel.clearSelection();
391	alfonx	97
392	alfonx	455	for (int fIdx = 0; fi.hasNext(); fIdx++) {
393			SimpleFeature f = fi.next();
394			layerSelModel.addSelection(f.getID());
395			}
396	alfonx	111
397	alfonx	455	// LOGGER.debug("Setting selection to " + fi.());
398	alfonx	409
399	alfonx	455	layerSelModel.setValueIsAdjusting(false);
400			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
401			layerSelModel.setValueIsAdjusting(true);
402			for (int fIdx = 0; fi.hasNext(); fIdx++) {
403			SimpleFeature f = fi.next();
404			layerSelModel.removeSelection(f.getID());
405			}
406			layerSelModel.setValueIsAdjusting(false);
407	alfonx	111	}
408	alfonx	455
409			} finally {
410			selectionResult.close(fi);
411	alfonx	151	}
412	alfonx	111
413			// Show selected features in the map, which is not automatically done by
414			// the origin: FeatureSelectedEvent
415	alfonx	97	changeLayerStyle(layerSelModel.getSelection());
416	alfonx	106
417	alfonx	97	// Danger of event circles in propertyChange(..) banned
418			selectionChangeCausedByMe = false;
419			}
420	alfonx	151
421	alfonx	97	}
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