geotools/selection/FeatureMapLayerSelectionSynchronizer.java

/** 
 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.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.Collection;
import java.util.Vector;

import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.text.Utilities;

import org.geotools.feature.Feature;
import org.geotools.map.MapLayer;
import org.geotools.styling.Rule;
import org.geotools.styling.RuleImpl;
import org.geotools.styling.Style;
import org.geotools.styling.StyleImpl;
import org.geotools.styling.Symbolizer;
import org.opengis.filter.Filter;
import org.opengis.filter.FilterVisitor;
import org.opengis.layer.StyleURL;

import schmitzm.geotools.gui.FeatureCollectionTableModel;
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 schmitzm.lang.LangUtil;
import skrueger.geotools.StyledFeatureCollectionInterface;
import skrueger.geotools.StyledMapInterface;
import skrueger.geotools.selection.StyledFeatureLayerSelectionModel;
import skrueger.geotools.selection.StyledLayerSelectionEvent;
import skrueger.geotools.selection.StyledLayerSelectionModel;

/**
 * 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 {
        /**
         * Holds the {@link MapLayer} to keep synchronized with the layer selection
         * model.
         */
        protected final MapLayer mapLayer;
        protected final StyledMapInterface<?> styledMapLayer;
        protected final JMapPane mapPane;

        /**
         * 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,
                        StyledMapInterface<?> styledMapLayer, MapLayer mapLayer,
                        JMapPane mapPane) {

                super(layerSelModel);
                this.styledMapLayer = styledMapLayer;

                this.mapLayer = mapLayer;
                this.mapPane = mapPane;
        }

        /**
         * 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 (!(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<Feature> 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;
        }

        private void changeLayerStyle(final Vector<Feature> newSelection) {
                Style selectionMapStyle = null;
                try {
                        if (newSelection.isEmpty()) {

                                selectionMapStyle = styledMapLayer.getStyle();
                                LOGGER.debug("NO SELECTION .. reset original style");
                                
                        } else {
                                LOGGER.debug("SELECTION .. change style");
                                
                                Style originalStyle = styledMapLayer.getStyle();
                                
                                // TODO This clone is a deep clone and it is slow.. 
                                selectionMapStyle =  StylingUtil.clone(originalStyle);
                                
                                Rule[] rules = selectionMapStyle.getFeatureTypeStyles()[0].getRules();
                                
                                Rule selectedRule = StylingUtil.STYLE_FACTORY.createRule();
                                selectedRule.setFilter(new Filter() {

                                        @Override
                                        public Object accept(FilterVisitor visitor, Object extraData) {
                                                return null;
                                        }

                                        @Override
                                        public boolean evaluate(Object obj) {
                                                if (obj instanceof Feature) {
                                                        Feature f = (Feature)obj;
                                                        LOGGER.info("treffer");
                                                        return newSelection.contains(f);
                                                        
                                                }
                                                LOGGER.info("kein treffer");
                                                return false;
                                        }
                                        
                                });
                                
                                Symbolizer[] symbolizers = selectedRule.getSymbolizers();
                                Style selectedStyle = StylingUtil.createDefaultStyle(styledMapLayer.getGeoObject());
                                LangUtil.extendArray(symbolizers, selectedStyle);
                                selectedRule.setSymbolizers(symbolizers);
                                
                                LangUtil.extendArray(rules, selectedRule);
                                
//                              selectionMapStyle.setFeatureTypeStyles(originalStyle.getF)
                                
                                // Flat copy the style
                                
                                
                                
                                
                        }

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

        //
        // /**
        // * Called when the table selection is changed by the user. When calling
        // this
        // * method changes the selection of the {@link StyledLayerSelectionModel}.
        // *
        // * @param evt
        // * an event
        // */
        // @Override
        // public void valueChanged(ListSelectionEvent evt) {
        //              
        // }

        @Override
        public void performMapPaneEvent(JMapPaneEvent e) {
                if (!(e instanceof FeatureSelectedEvent))
                        return;

                FeatureSelectedEvent fse = (FeatureSelectedEvent) e;

                // ignore event if it is caused by the DpLayerVectorSelectionModel
                if (selectionChangeCausedByMe)
                        return;

                // Avoid event circles in propertyChange(..)
                selectionChangeCausedByMe = true;

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

                layerSelModel.addSelection((Collection<Feature>) fse
                                .getSelectionResult());

                // for (int i = evt.getFirstIndex(); i <= evt.getLastIndex(); i++) {
                // Feature changedFeature = featureTableModel.getFeature(featureTable
                // .convertRowIndexToModel(i));
                // if (featureTable.isRowSelected(i))
                // layerSelModel.addSelection(changedFeature);
                // else
                // layerSelModel.removeSelection(changedFeature);
                // }
                // layerSelModel.setValueIsAdjusting(false);

                // Show selected feature in the map, which is not automatically done by
                // the FeatureSelectedEvent
                changeLayerStyle(layerSelModel.getSelection());
                
                // Danger of event circles in propertyChange(..) banned
                selectionChangeCausedByMe = false;
        }
}
1	alfonx	97	/**
2			Copyright 2008 Stefan Alfons Krüger
3
4			atlas-framework - This file is part of the Atlas Framework
5
6			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.
7			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.
8			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
9
10			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.
11			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.
12			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.
13			**/
14			package skrueger.geotools.selection;
15
16			import java.beans.PropertyChangeEvent;
17			import java.beans.PropertyChangeListener;
18			import java.util.Collection;
19			import java.util.Vector;
20
21			import javax.swing.JTable;
22			import javax.swing.ListSelectionModel;
23			import javax.swing.event.ListSelectionEvent;
24			import javax.swing.event.ListSelectionListener;
25	alfonx	100	import javax.swing.text.Utilities;
26	alfonx	97
27			import org.geotools.feature.Feature;
28			import org.geotools.map.MapLayer;
29	alfonx	101	import org.geotools.styling.Rule;
30			import org.geotools.styling.RuleImpl;
31	alfonx	97	import org.geotools.styling.Style;
32	alfonx	101	import org.geotools.styling.StyleImpl;
33	alfonx	104	import org.geotools.styling.Symbolizer;
34	alfonx	101	import org.opengis.filter.Filter;
35			import org.opengis.filter.FilterVisitor;
36			import org.opengis.layer.StyleURL;
37	alfonx	97
38			import schmitzm.geotools.gui.FeatureCollectionTableModel;
39			import schmitzm.geotools.gui.JMapPane;
40			import schmitzm.geotools.map.event.FeatureSelectedEvent;
41			import schmitzm.geotools.map.event.JMapPaneEvent;
42			import schmitzm.geotools.map.event.JMapPaneListener;
43			import schmitzm.geotools.styling.StylingUtil;
44	alfonx	104	import schmitzm.lang.LangUtil;
45	alfonx	97	import skrueger.geotools.StyledFeatureCollectionInterface;
46			import skrueger.geotools.StyledMapInterface;
47			import skrueger.geotools.selection.StyledFeatureLayerSelectionModel;
48			import skrueger.geotools.selection.StyledLayerSelectionEvent;
49			import skrueger.geotools.selection.StyledLayerSelectionModel;
50
51			/**
52			* This class keeps the selection of a (feature) {@link JTable} synchronized
53			* with the {@link StyledLayerSelectionModel} of a layer. This is done by
54			* implementing:
55			* <ul>
56			* <li>a {@link PropertyChangeListener} which listens to the
57			* {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
58			* selection</li>
59			* <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
60			* accordingly changes the {@link StyledLayerSelectionModel} selection</li>
61			* </ul>
62			* After creating, the instance of this synchronizer must be added as listener
63			* to both, the {@link StyledLayerSelectionModel} and the table's
64			* {@link ListSelectionModel}.
65			*
66			* @author <a href="mailto:[email protected]">Martin Schmitz</a>
67			* (University of Bonn/Germany)
68			*/
69			public class FeatureMapLayerSelectionSynchronizer extends
70	mojays	103	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel> implements
71	alfonx	97	JMapPaneListener {
72			/**
73			* Holds the {@link MapLayer} to keep synchronized with the layer selection
74			* model.
75			*/
76			protected final MapLayer mapLayer;
77			protected final StyledMapInterface<?> styledMapLayer;
78			protected final JMapPane mapPane;
79
80			/**
81			* Creates a new synchronizer
82			*
83			* @param layerSelModel
84			* layer selection model to keep synchronized with the
85			* {@link MapLayer}
86			*
87			* @param mapLayer
88			* {@link MapLayer} to keep synchronized with.
89			*/
90			public FeatureMapLayerSelectionSynchronizer(
91			StyledFeatureLayerSelectionModel layerSelModel,
92			StyledMapInterface<?> styledMapLayer, MapLayer mapLayer,
93			JMapPane mapPane) {
94
95			super(layerSelModel);
96			this.styledMapLayer = styledMapLayer;
97
98			this.mapLayer = mapLayer;
99			this.mapPane = mapPane;
100			}
101
102			/**
103			* Called by {@link StyledLayerSelectionModel} when a the selection on other
104			* selection components (map, chart, ...) has changed. When calling this
105			*
106			* method changes the {@link MapLayer} selection according to the
107			* {@link StyledLayerSelectionModel} selection.
108			*
109			* @param evt
110			* an event
111			*/
112			@Override
113			public void propertyChange(PropertyChangeEvent evt) {
114			if (!(evt instanceof StyledLayerSelectionEvent))
115			return;
116			StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
117			// Only react on own layer and ignore events invoked by
118			// this component itself
119			if (selEvt.getEmitter() != layerSelModel \|\| selectionChangeCausedByMe)
120			return;
121			// Apply new selection on table (except this event is one of
122			// some more events)
123			Vector<Feature> newSelection = layerSelModel.getSelection();
124			if (newSelection == null)
125			return;
126
127			// Avoid event circles in valueChanged(..)
128			selectionChangeCausedByMe = true;
129
130			changeLayerStyle(newSelection);
131
132			// Danger of event circles in valueChanged(..) banned
133			selectionChangeCausedByMe = false;
134			}
135
136	alfonx	104	private void changeLayerStyle(final Vector<Feature> newSelection) {
137	alfonx	97	Style selectionMapStyle = null;
138			try {
139			if (newSelection.isEmpty()) {
140
141			selectionMapStyle = styledMapLayer.getStyle();
142	alfonx	100	LOGGER.debug("NO SELECTION .. reset original style");
143
144	alfonx	97	} else {
145	alfonx	100	LOGGER.debug("SELECTION .. change style");
146
147	alfonx	101	Style originalStyle = styledMapLayer.getStyle();
148	alfonx	100
149	alfonx	101	// TODO This clone is a deep clone and it is slow..
150			selectionMapStyle = StylingUtil.clone(originalStyle);
151
152			Rule[] rules = selectionMapStyle.getFeatureTypeStyles()[0].getRules();
153
154			Rule selectedRule = StylingUtil.STYLE_FACTORY.createRule();
155			selectedRule.setFilter(new Filter() {
156
157			@Override
158			public Object accept(FilterVisitor visitor, Object extraData) {
159			return null;
160			}
161
162			@Override
163			public boolean evaluate(Object obj) {
164	alfonx	104	if (obj instanceof Feature) {
165			Feature f = (Feature)obj;
166			LOGGER.info("treffer");
167			return newSelection.contains(f);
168
169			}
170			LOGGER.info("kein treffer");
171	alfonx	101	return false;
172			}
173
174			});
175
176	alfonx	104	Symbolizer[] symbolizers = selectedRule.getSymbolizers();
177			Style selectedStyle = StylingUtil.createDefaultStyle(styledMapLayer.getGeoObject());
178			LangUtil.extendArray(symbolizers, selectedStyle);
179			selectedRule.setSymbolizers(symbolizers);
180	alfonx	101
181	alfonx	104	LangUtil.extendArray(rules, selectedRule);
182
183	alfonx	101	// selectionMapStyle.setFeatureTypeStyles(originalStyle.getF)
184
185			// Flat copy the style
186
187
188
189
190	alfonx	97	}
191
192			mapLayer.setStyle(selectionMapStyle);
193			mapPane.refresh();
194			} catch (Exception e) {
195			LOGGER.error("Error while trying to create a selection style", e);
196			}
197			}
198
199			//
200			// /**
201			// * Called when the table selection is changed by the user. When calling
202			// this
203			// * method changes the selection of the {@link StyledLayerSelectionModel}.
204			// *
205			// * @param evt
206			// * an event
207			// */
208			// @Override
209			// public void valueChanged(ListSelectionEvent evt) {
210			//
211			// }
212
213			@Override
214			public void performMapPaneEvent(JMapPaneEvent e) {
215			if (!(e instanceof FeatureSelectedEvent))
216			return;
217
218			FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
219
220			// ignore event if it is caused by the DpLayerVectorSelectionModel
221			if (selectionChangeCausedByMe)
222			return;
223
224			// Avoid event circles in propertyChange(..)
225			selectionChangeCausedByMe = true;
226
227			// reset the selection of the DpLayerSelectionModel
228			// layerSelModel.setValueIsAdjusting(true);
229
230			layerSelModel.addSelection((Collection<Feature>) fse
231			.getSelectionResult());
232
233			// for (int i = evt.getFirstIndex(); i <= evt.getLastIndex(); i++) {
234			// Feature changedFeature = featureTableModel.getFeature(featureTable
235			// .convertRowIndexToModel(i));
236			// if (featureTable.isRowSelected(i))
237			// layerSelModel.addSelection(changedFeature);
238			// else
239			// layerSelModel.removeSelection(changedFeature);
240			// }
241			// layerSelModel.setValueIsAdjusting(false);
242
243			// Show selected feature in the map, which is not automatically done by
244			// the FeatureSelectedEvent
245			changeLayerStyle(layerSelModel.getSelection());
246
247			// Danger of event circles in propertyChange(..) banned
248			selectionChangeCausedByMe = false;
249			}
250			}
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