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));
                                }

                                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	106
243	alfonx	412	selectionFTStyle.rules().get(0).setFilter(
244			FilterUtil.FILTER_FAC2.id(fids));
245	alfonx	106
246	alfonx	412	// Maybe there has already been another selection
247			// FeatureTypeStyle... Let's replace it...
248			boolean foundAndReplaced = false;
249			for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
250			if (fts.getName() != null
251			&& fts.getName().equals(SELECTION_STYLING)) {
252			foundAndReplaced = true;
253			fts.rules().clear();
254			fts.rules().addAll(selectionFTStyle.rules());
255			break;
256			}
257	alfonx	123	}
258	alfonx	412	if (!foundAndReplaced) {
259			originalStyle.featureTypeStyles().add(selectionFTStyle);
260			}
261	alfonx	151
262	alfonx	412	// Refresh the map
263	alfonx	455	// mapPane.refresh();
264
265	alfonx	419	DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
266			dsv.visit(originalStyle);
267	alfonx	455	Style newStyle = (Style) dsv.getCopy();
268
269			// Style newStyle = StylingUtil.STYLE_BUILDER.createStyle();
270			// newStyle.featureTypeStyles().addAll(originalStyle.featureTypeStyles());
271	alfonx	419	mapLayer.setStyle(newStyle);
272	alfonx	455
273	alfonx	419	replaceRenderer();
274	alfonx	97	}
275
276			} catch (Exception e) {
277			LOGGER.error("Error while trying to create a selection style", e);
278			}
279			}
280
281	alfonx	419	private void replaceRenderer() {
282	alfonx	455	//
283			// // Has to be done before we apply the new Renderer
284			// mapLayer.setStyle(style);
285	alfonx	419
286			GTRenderer oldRenderer = mapPane.getRenderer();
287
288			/**
289			* Explicitly putting a new instance of LabelCacheDefault into the
290			* renderer instance, so JMapPane doesn't reuse the old one. This is
291			* very useful when changing the TextSymbolizer with AtlasStyler<br/>
292			* SK 9.7.09: It's not enought to user LabelCache.clear(). We can not
293			* reuse the old Renderer - better to create a new one!
294			*/
295	alfonx	440	final GTRenderer newRenderer = GTUtil.createGTRenderer();
296	alfonx	419
297			final HashMap<Object, Object> rendererHints = defaultGTRenderingHints;
298			rendererHints.put(StreamingRenderer.LABEL_CACHE_KEY,
299			new LabelCacheImpl());
300
301			newRenderer.setRendererHints(rendererHints);
302			mapPane.setRenderer(newRenderer);
303
304			if (oldRenderer != null) {
305	alfonx	455
306	alfonx	419	RenderingHints java2DHints = oldRenderer.getJava2DHints();
307			if (java2DHints != null) {
308	alfonx	427	newRenderer.setJava2DHints(java2DHints);
309	alfonx	419	}
310	alfonx	455
311	alfonx	419	oldRenderer.setContext(null);
312			oldRenderer = null;
313			}
314	alfonx	455
315	alfonx	419	mapPane.refresh();
316
317			}
318
319	alfonx	151	/**
320			* Used to synchronize {@link FeatureSelectedEvent}s with the
321			* {@link StyledFeatureLayerSelectionModel}
322			*/
323	alfonx	97	@Override
324			public void performMapPaneEvent(JMapPaneEvent e) {
325	alfonx	106
326	alfonx	151	// Ignore event if it is caused by us or the synchronizer is disabled.
327			if (!isEnabled() \|\| selectionChangeCausedByMe)
328			return;
329
330			if (!(e instanceof FeatureSelectedEvent)) {
331			// LOGGER.debug("Ignoring event " + e);
332			return;
333			}
334
335	alfonx	111	/**
336	alfonx	151	* Only listen to FeatureSelectedEvents if an appropriate tool is
337	alfonx	111	* selected.
338			*/
339			final int selectedTool = toolBar.getSelectedTool();
340			if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
341			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
342			&& selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
343			return;
344			}
345
346	mojays	109	// only listen to events directly coming from JMapPane
347			// selection (ignore selections from FilterDialog)
348	alfonx	111	if (e.getSourceObject() != this.mapPane)
349			return;
350
351	alfonx	97	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
352
353	alfonx	151	/**
354	alfonx	158	* Checking, that the FeatureSelectedEvent actually contains features
355			* from this layer
356	alfonx	151	*/
357			final String sourceID = fse.getSourceLayer().getTitle();
358			final String syncForID = mapLayer.getTitle();
359			if (sourceID != null && syncForID != null
360	alfonx	158	&& !sourceID.equals(syncForID)) {
361			LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
362	alfonx	97	return;
363	alfonx	151	}
364	alfonx	97
365	alfonx	151	LOGGER.debug("do event " + fse);
366	alfonx	111
367	alfonx	97	// Avoid event circles in propertyChange(..)
368			selectionChangeCausedByMe = true;
369
370	alfonx	455	final FeatureCollection<SimpleFeatureType, SimpleFeature> selectionResult = fse
371			.getSelectionResult();
372			Iterator<SimpleFeature> fi = selectionResult.iterator();
373			try {
374	alfonx	97
375	alfonx	455	// reset the selection of the DpLayerSelectionModel
376			// layerSelModel.setValueIsAdjusting(true);
377	alfonx	97
378	alfonx	455	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
379			layerSelModel.setValueIsAdjusting(true);
380	alfonx	409
381	alfonx	455	for (int fIdx = 0; fi.hasNext(); fIdx++) {
382			SimpleFeature f = fi.next();
383			layerSelModel.addSelection(f.getID());
384			}
385			layerSelModel.setValueIsAdjusting(false);
386			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
387			layerSelModel.setValueIsAdjusting(true);
388			layerSelModel.clearSelection();
389	alfonx	97
390	alfonx	455	for (int fIdx = 0; fi.hasNext(); fIdx++) {
391			SimpleFeature f = fi.next();
392			layerSelModel.addSelection(f.getID());
393			}
394	alfonx	111
395	alfonx	455	// LOGGER.debug("Setting selection to " + fi.());
396	alfonx	409
397	alfonx	455	layerSelModel.setValueIsAdjusting(false);
398			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
399			layerSelModel.setValueIsAdjusting(true);
400			for (int fIdx = 0; fi.hasNext(); fIdx++) {
401			SimpleFeature f = fi.next();
402			layerSelModel.removeSelection(f.getID());
403			}
404			layerSelModel.setValueIsAdjusting(false);
405	alfonx	111	}
406	alfonx	455
407			} finally {
408			selectionResult.close(fi);
409	alfonx	151	}
410	alfonx	111
411			// Show selected features in the map, which is not automatically done by
412			// the origin: FeatureSelectedEvent
413	alfonx	97	changeLayerStyle(layerSelModel.getSelection());
414	alfonx	106
415	alfonx	97	// Danger of event circles in propertyChange(..) banned
416			selectionChangeCausedByMe = false;
417			}
418	alfonx	151
419	alfonx	97	}
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