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.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.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;

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

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

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

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

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

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

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

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

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

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