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.renderer.shape.ShapefileRenderer;
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(oldRenderer.getContext());

                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	/*******************************************************************************
2	* Copyright (c) 2009 Martin O. J. Schmitz.
3	*
4	* This file is part of the SCHMITZM library - a collection of utility
5	* classes based on Java 1.6, focusing (not only) on Java Swing
6	* and the Geotools library.
7	*
8	* The SCHMITZM project is hosted at:
9	* http://wald.intevation.org/projects/schmitzm/
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU Lesser General Public License
13	* as published by the Free Software Foundation; either version 3
14	* of the License, or (at your option) any later version.
15	*
16	* This program is distributed in the hope that it will be useful,
17	* but WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19	* GNU General Public License for more details.
20	*
21	* You should have received a copy of the GNU Lesser General Public License (license.txt)
22	* along with this program; if not, write to the Free Software
23	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24	* or try this link: http://www.gnu.org/licenses/lgpl.html
25	*
26	* Contributors:
27	* Martin O. J. Schmitz - initial API and implementation
28	* Stefan A. Krüger - additional utility classes
29	******************************************************************************/
30	/**
31	Copyright 2008 Stefan Alfons Krüger
32
33	atlas-framework - This file is part of the Atlas Framework
34
35	This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.
36	This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
37	You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
38
39	Diese Bibliothek ist freie Software; Sie dürfen sie unter den Bedingungen der GNU Lesser General Public License, wie von der Free Software Foundation veröffentlicht, weiterverteilen und/oder modifizieren; entweder gemäß Version 2.1 der Lizenz oder (nach Ihrer Option) jeder späteren Version.
40	Diese Bibliothek wird in der Hoffnung weiterverbreitet, daß sie nützlich sein wird, jedoch OHNE IRGENDEINE GARANTIE, auch ohne die implizierte Garantie der MARKTREIFE oder der VERWENDBARKEIT FÜR EINEN BESTIMMTEN ZWECK. Mehr Details finden Sie in der GNU Lesser General Public License.
41	Sie sollten eine Kopie der GNU Lesser General Public License zusammen mit dieser Bibliothek erhalten haben; falls nicht, schreiben Sie an die Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA.
42	**/
43	package skrueger.geotools.selection;
44
45	import java.awt.RenderingHints;
46	import java.beans.PropertyChangeEvent;
47	import java.beans.PropertyChangeListener;
48	import java.util.HashMap;
49	import java.util.HashSet;
50	import java.util.Iterator;
51	import java.util.Set;
52	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	import org.geotools.renderer.GTRenderer;
60	import org.geotools.renderer.label.LabelCacheImpl;
61	import org.geotools.renderer.lite.StreamingRenderer;
62	import org.geotools.renderer.shape.ShapefileRenderer;
63	import org.geotools.styling.FeatureTypeStyle;
64	import org.geotools.styling.Style;
65	import org.geotools.styling.visitor.DuplicatingStyleVisitor;
66	import org.opengis.feature.simple.SimpleFeature;
67	import org.opengis.filter.identity.FeatureId;
68
69	import schmitzm.geotools.FilterUtil;
70	import schmitzm.geotools.GTUtil;
71	import schmitzm.geotools.gui.JMapPane;
72	import schmitzm.geotools.map.event.FeatureSelectedEvent;
73	import schmitzm.geotools.map.event.JMapPaneEvent;
74	import schmitzm.geotools.map.event.JMapPaneListener;
75	import schmitzm.geotools.styling.StylingUtil;
76	import skrueger.geotools.MapPaneToolBar;
77	import skrueger.geotools.StyledLayerInterface;
78
79	/**
80	* This class keeps the selection of a (feature) {@link JTable} synchronized
81	* with the {@link StyledLayerSelectionModel} of a layer. This is done by
82	* implementing:
83	* <ul>
84	* <li>a {@link PropertyChangeListener} which listens to the
85	* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
86	* selection</li>
87	* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
88	* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
89	* </ul>
90	* After creating, the instance of this synchronizer must be added as listener
91	* to both, the {@link StyledLayerSelectionModel} and the table's
92	* {@link ListSelectionModel}.
93	*
94	* @author <a href="mailto:[email protected]">Martin Schmitz</a>
95	* (University of Bonn/Germany)
96	*/
97	public class FeatureMapLayerSelectionSynchronizer extends
98	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
99	implements JMapPaneListener {
100	public static final String SELECTION_STYLING = "SELECTION";
101	/**
102	* Holds the {@link MapLayer} to keep synchronized with the layer selection
103	* model.
104	*/
105	protected final MapLayer mapLayer;
106	protected final StyledLayerInterface<?> styledLayer;
107	protected final JMapPane mapPane;
108	private final MapPaneToolBar toolBar;
109	private final HashMap<Object, Object> defaultGTRenderingHints;
110
111	/**
112	* Creates a new synchronizer
113	*
114	* @param layerSelModel
115	* layer selection model to keep synchronized with the
116	* {@link MapLayer}
117	*
118	* @param mapLayer
119	* {@link MapLayer} to keep synchronized with.
120	*/
121	public FeatureMapLayerSelectionSynchronizer(
122	StyledFeatureLayerSelectionModel layerSelModel,
123	StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
124	JMapPane mapPane, MapPaneToolBar toolBar, HashMap<Object, Object> defaultGTRenderingHints) {
125
126	super(layerSelModel);
127	this.styledLayer = styledLayer;
128
129	this.mapLayer = mapLayer;
130	this.mapPane = mapPane;
131	this.toolBar = toolBar;
132	if (defaultGTRenderingHints != null)
133	this.defaultGTRenderingHints = defaultGTRenderingHints;
134	else
135	this.defaultGTRenderingHints = new HashMap<Object, Object>();
136	}
137
138	/**
139	* Called by {@link StyledLayerSelectionModel} when a the selection on other
140	* selection components (map, chart, ...) has changed. When calling this
141	*
142	* method changes the {@link MapLayer} selection according to the
143	* {@link StyledLayerSelectionModel} selection.
144	*
145	* @param evt
146	* an event
147	*/
148	@Override
149	public void propertyChange(PropertyChangeEvent evt) {
150
151	if (!isEnabled())
152	return;
153
154	if (!(evt instanceof StyledLayerSelectionEvent))
155	return;
156	StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
157	// Only react on own layer and ignore events invoked by
158	// this component itself
159	if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
160	return;
161	// Apply new selection on table (except this event is one of
162	// some more events)
163	Vector<String> newSelection = layerSelModel.getSelection();
164	if (newSelection == null)
165	return;
166
167	// Avoid event circles in valueChanged(..)
168	selectionChangeCausedByMe = true;
169
170	changeLayerStyle(newSelection);
171
172	// Danger of event circles in valueChanged(..) banned
173	selectionChangeCausedByMe = false;
174	}
175
176	/**
177	* Changes the Style of the {@link MapLayer} to reflect changes of the
178	* selection.
179	*
180	* @param newSelection
181	* A {@link Vector} of SimpleFeature-IDs that are selected.
182	*/
183	private void changeLayerStyle(final Vector<String> newSelection) {
184	try {
185
186	Style originalStyle = mapLayer.getStyle();
187	if (newSelection.isEmpty()) {
188
189	// Check if the Style contains a SELECTION FTS
190
191	FeatureTypeStyle[] clone = originalStyle.featureTypeStyles().toArray( new FeatureTypeStyle[] {} ).clone();
192
193	for (FeatureTypeStyle fts : clone) {
194	if (fts.getName() != null
195	&& fts.getName().equals(SELECTION_STYLING)) {
196	originalStyle.featureTypeStyles().remove(fts);
197
198	replaceRenderer();
199	// mapPane.refresh();
200
201
202	return;
203	}
204	}
205
206	} else {
207	LOGGER.debug("SELECTION .. change style");
208
209	// We take Style from the MapLayer that is displayed at the
210	// moment. We do not use the styledLayer.getStyle, because in
211	// the atlas, this always return the default style, but
212	// additional styles might be selected.
213	// Taking the style from the mapLayer indicated, that we have to
214	// remove any selection rules first.
215
216	FeatureTypeStyle selectionFTStyle = StylingUtil
217	.createSelectionStyle(styledLayer.getGeoObject());
218
219	selectionFTStyle.setName(SELECTION_STYLING);
220
221	/**
222	*
223	* Add a Filter to the selectionMapStyle, so that it is only
224	* used on objects that are selected. <br/>
225	*
226	* Note 1:<br/>
227	* It is NEVER allowed to GeoTools extend Filter () { .. } (and
228	* write tests into the evaluate block). Especially for the
229	* ShapeFileRenderer, we may only use a geotools Filter.<br/>
230	*
231	* Note 2:<br/>
232	* The FilterUtil.FILTER_FAC2.id(fids) wants a set of
233	* FeatureId-Objects!
234	*/
235
236	Set<FeatureId> fids = new HashSet<FeatureId>();
237	for (String fid : newSelection) {
238	fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
239	}
240
241	selectionFTStyle.rules().get(0).setFilter(
242	FilterUtil.FILTER_FAC2.id(fids));
243
244	// Maybe there has already been another selection
245	// FeatureTypeStyle... Let's replace it...
246	boolean foundAndReplaced = false;
247	for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
248	if (fts.getName() != null
249	&& fts.getName().equals(SELECTION_STYLING)) {
250	foundAndReplaced = true;
251	fts.rules().clear();
252	fts.rules().addAll(selectionFTStyle.rules());
253	break;
254	}
255	}
256	if (!foundAndReplaced) {
257	originalStyle.featureTypeStyles().add(selectionFTStyle);
258	}
259
260
261
262	// Refresh the map
263	// mapPane.refresh();
264
265	DuplicatingStyleVisitor dsv = new DuplicatingStyleVisitor();
266	dsv.visit(originalStyle);
267	Style newStyle = (Style)dsv.getCopy();
268
269	// Style newStyle = StylingUtil.STYLE_BUILDER.createStyle();
270	// newStyle.featureTypeStyles().addAll(originalStyle.featureTypeStyles());
271	mapLayer.setStyle(newStyle);
272
273	replaceRenderer();
274	}
275
276	} catch (Exception e) {
277	LOGGER.error("Error while trying to create a selection style", e);
278	}
279	}
280
281	private void replaceRenderer() {
282	//
283	// // Has to be done before we apply the new Renderer
284	// mapLayer.setStyle(style);
285
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	final GTRenderer newRenderer = GTUtil.createGTRenderer(oldRenderer.getContext());
296
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
306	RenderingHints java2DHints = oldRenderer.getJava2DHints();
307	if (java2DHints != null) {
308	newRenderer.setJava2DHints(java2DHints);
309	}
310
311	oldRenderer.setContext(null);
312	oldRenderer = null;
313	}
314
315	mapPane.refresh();
316
317	}
318
319	/**
320	* Used to synchronize {@link FeatureSelectedEvent}s with the
321	* {@link StyledFeatureLayerSelectionModel}
322	*/
323	@Override
324	public void performMapPaneEvent(JMapPaneEvent e) {
325
326	// 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	/**
336	* Only listen to FeatureSelectedEvents if an appropriate tool is
337	* 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	// only listen to events directly coming from JMapPane
347	// selection (ignore selections from FilterDialog)
348	if (e.getSourceObject() != this.mapPane)
349	return;
350
351	FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
352
353	/**
354	* Checking, that the FeatureSelectedEvent actually contains features
355	* from this layer
356	*/
357	final String sourceID = fse.getSourceLayer().getTitle();
358	final String syncForID = mapLayer.getTitle();
359	if (sourceID != null && syncForID != null
360	&& !sourceID.equals(syncForID)) {
361	LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
362	return;
363	}
364
365	LOGGER.debug("do event " + fse);
366
367	// Avoid event circles in propertyChange(..)
368	selectionChangeCausedByMe = true;
369
370	Iterator<SimpleFeature> fi = fse.getSelectionResult().iterator();
371
372	// reset the selection of the DpLayerSelectionModel
373	// layerSelModel.setValueIsAdjusting(true);
374
375	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
376	layerSelModel.setValueIsAdjusting(true);
377
378	for (int fIdx = 0; fi.hasNext(); fIdx++) {
379	SimpleFeature f = fi.next();
380	layerSelModel.addSelection(f.getID());
381	}
382	layerSelModel.setValueIsAdjusting(false);
383	} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
384	layerSelModel.setValueIsAdjusting(true);
385	layerSelModel.clearSelection();
386
387	for (int fIdx = 0; fi.hasNext(); fIdx++) {
388	SimpleFeature f = fi.next();
389	layerSelModel.addSelection(f.getID());
390	}
391
392	// LOGGER.debug("Setting selection to " + fi.());
393
394	layerSelModel.setValueIsAdjusting(false);
395	} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
396	layerSelModel.setValueIsAdjusting(true);
397	for (int fIdx = 0; fi.hasNext(); fIdx++) {
398	SimpleFeature f = fi.next();
399	layerSelModel.removeSelection(f.getID());
400	}
401	layerSelModel.setValueIsAdjusting(false);
402	}
403
404	// Show selected features in the map, which is not automatically done by
405	// the origin: FeatureSelectedEvent
406	changeLayerStyle(layerSelModel.getSelection());
407
408	// Danger of event circles in propertyChange(..) banned
409	selectionChangeCausedByMe = false;
410	}
411
412	}
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