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	/**
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	import javax.swing.text.Utilities;
26
27	import org.geotools.feature.Feature;
28	import org.geotools.map.MapLayer;
29	import org.geotools.styling.Rule;
30	import org.geotools.styling.RuleImpl;
31	import org.geotools.styling.Style;
32	import org.geotools.styling.StyleImpl;
33	import org.geotools.styling.Symbolizer;
34	import org.opengis.filter.Filter;
35	import org.opengis.filter.FilterVisitor;
36	import org.opengis.layer.StyleURL;
37
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	import schmitzm.lang.LangUtil;
45	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	StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel> implements
71	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	private void changeLayerStyle(final Vector<Feature> newSelection) {
137	Style selectionMapStyle = null;
138	try {
139	if (newSelection.isEmpty()) {
140
141	selectionMapStyle = styledMapLayer.getStyle();
142	LOGGER.debug("NO SELECTION .. reset original style");
143
144	} else {
145	LOGGER.debug("SELECTION .. change style");
146
147	Style originalStyle = styledMapLayer.getStyle();
148
149	// 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	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	return false;
172	}
173
174	});
175
176	Symbolizer[] symbolizers = selectedRule.getSymbolizers();
177	Style selectedStyle = StylingUtil.createDefaultStyle(styledMapLayer.getGeoObject());
178	LangUtil.extendArray(symbolizers, selectedStyle);
179	selectedRule.setSymbolizers(symbolizers);
180
181	LangUtil.extendArray(rules, selectedRule);
182
183	// selectionMapStyle.setFeatureTypeStyles(originalStyle.getF)
184
185	// Flat copy the style
186
187
188
189
190	}
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	}
Name	Value
svn:eol-style	native
svn:keywords	Id
svn:mime-type	text/plain