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	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			import org.geotools.renderer.shape.ShapefileRenderer;
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	158	import org.opengis.filter.identity.FeatureId;
68	alfonx	97
69	alfonx	158	import schmitzm.geotools.FilterUtil;
70	alfonx	438	import schmitzm.geotools.GTUtil;
71	alfonx	97	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	alfonx	111	import skrueger.geotools.MapPaneToolBar;
77	alfonx	224	import skrueger.geotools.StyledLayerInterface;
78	alfonx	97
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	alfonx	106	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
99			implements JMapPaneListener {
100	alfonx	111	public static final String SELECTION_STYLING = "SELECTION";
101	alfonx	97	/**
102			* Holds the {@link MapLayer} to keep synchronized with the layer selection
103			* model.
104			*/
105			protected final MapLayer mapLayer;
106	alfonx	224	protected final StyledLayerInterface<?> styledLayer;
107	alfonx	97	protected final JMapPane mapPane;
108	alfonx	111	private final MapPaneToolBar toolBar;
109	alfonx	419	private final HashMap<Object, Object> defaultGTRenderingHints;
110	alfonx	97
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	alfonx	224	StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
124	alfonx	419	JMapPane mapPane, MapPaneToolBar toolBar, HashMap<Object, Object> defaultGTRenderingHints) {
125	alfonx	97
126			super(layerSelModel);
127	alfonx	224	this.styledLayer = styledLayer;
128	alfonx	97
129			this.mapLayer = mapLayer;
130			this.mapPane = mapPane;
131	alfonx	111	this.toolBar = toolBar;
132	alfonx	419	if (defaultGTRenderingHints != null)
133			this.defaultGTRenderingHints = defaultGTRenderingHints;
134			else
135			this.defaultGTRenderingHints = new HashMap<Object, Object>();
136	alfonx	97	}
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	alfonx	151
151			if (!isEnabled())
152			return;
153
154	alfonx	97	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	alfonx	111	Vector<String> newSelection = layerSelModel.getSelection();
164	alfonx	97	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	alfonx	151	/**
177			* Changes the Style of the {@link MapLayer} to reflect changes of the
178			* selection.
179			*
180			* @param newSelection
181	alfonx	318	* A {@link Vector} of SimpleFeature-IDs that are selected.
182	alfonx	151	*/
183	alfonx	111	private void changeLayerStyle(final Vector<String> newSelection) {
184	alfonx	97	try {
185	alfonx	415
186	alfonx	412	Style originalStyle = mapLayer.getStyle();
187	alfonx	97	if (newSelection.isEmpty()) {
188
189	alfonx	412	// 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	alfonx	419	replaceRenderer();
199			// mapPane.refresh();
200
201	alfonx	106
202	alfonx	412	return;
203			}
204			}
205
206	alfonx	97	} else {
207	alfonx	100	LOGGER.debug("SELECTION .. change style");
208	alfonx	106
209	alfonx	123	// We take Style from the MapLayer that is displayed at the
210	alfonx	224	// moment. We do not use the styledLayer.getStyle, because in
211	alfonx	123	// the atlas, this always return the default style, but
212	alfonx	224	// additional styles might be selected.
213	alfonx	123	// Taking the style from the mapLayer indicated, that we have to
214	alfonx	125	// remove any selection rules first.
215	alfonx	101
216	alfonx	412	FeatureTypeStyle selectionFTStyle = StylingUtil
217	alfonx	224	.createSelectionStyle(styledLayer.getGeoObject());
218	alfonx	106
219	alfonx	412	selectionFTStyle.setName(SELECTION_STYLING);
220	alfonx	123
221	alfonx	158	/**
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	alfonx	409	* It is NEVER allowed to GeoTools extend Filter () { .. } (and
228			* write tests into the evaluate block). Especially for the
229	alfonx	158	* ShapeFileRenderer, we may only use a geotools Filter.<br/>
230			*
231			* Note 2:<br/>
232	alfonx	409	* The FilterUtil.FILTER_FAC2.id(fids) wants a set of
233			* FeatureId-Objects!
234	alfonx	158	*/
235	alfonx	106
236	alfonx	158	Set<FeatureId> fids = new HashSet<FeatureId>();
237			for (String fid : newSelection) {
238			fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
239			}
240	alfonx	106
241	alfonx	412	selectionFTStyle.rules().get(0).setFilter(
242			FilterUtil.FILTER_FAC2.id(fids));
243	alfonx	106
244	alfonx	412	// 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	alfonx	123	}
256	alfonx	412	if (!foundAndReplaced) {
257			originalStyle.featureTypeStyles().add(selectionFTStyle);
258			}
259	alfonx	419
260
261	alfonx	151
262	alfonx	412	// Refresh the map
263	alfonx	419	// 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	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			//
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	alfonx	438	final GTRenderer newRenderer = GTUtil.createGTRenderer(oldRenderer.getContext());
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
306			RenderingHints java2DHints = oldRenderer.getJava2DHints();
307			if (java2DHints != null) {
308	alfonx	427	newRenderer.setJava2DHints(java2DHints);
309	alfonx	419	}
310
311			oldRenderer.setContext(null);
312			oldRenderer = null;
313			}
314
315			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	409	Iterator<SimpleFeature> fi = fse.getSelectionResult().iterator();
371	alfonx	97
372	alfonx	151	// reset the selection of the DpLayerSelectionModel
373			// layerSelModel.setValueIsAdjusting(true);
374	alfonx	97
375	alfonx	151	if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
376			layerSelModel.setValueIsAdjusting(true);
377	alfonx	409
378			for (int fIdx = 0; fi.hasNext(); fIdx++) {
379			SimpleFeature f = fi.next();
380	alfonx	151	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	alfonx	97
387	alfonx	409	for (int fIdx = 0; fi.hasNext(); fIdx++) {
388			SimpleFeature f = fi.next();
389	alfonx	151	layerSelModel.addSelection(f.getID());
390			}
391	alfonx	111
392	alfonx	409	// LOGGER.debug("Setting selection to " + fi.());
393
394	alfonx	151	layerSelModel.setValueIsAdjusting(false);
395			} else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
396			layerSelModel.setValueIsAdjusting(true);
397	alfonx	409	for (int fIdx = 0; fi.hasNext(); fIdx++) {
398			SimpleFeature f = fi.next();
399	alfonx	151	layerSelModel.removeSelection(f.getID());
400	alfonx	111	}
401	alfonx	151	layerSelModel.setValueIsAdjusting(false);
402			}
403	alfonx	111
404			// Show selected features in the map, which is not automatically done by
405			// the origin: FeatureSelectedEvent
406	alfonx	97	changeLayerStyle(layerSelModel.getSelection());
407	alfonx	106
408	alfonx	97	// Danger of event circles in propertyChange(..) banned
409			selectionChangeCausedByMe = false;
410			}
411	alfonx	151
412	alfonx	97	}
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