/[schmitzm]/trunk/src/skrueger/geotools/selection/FeatureMapLayerSelectionSynchronizer.java
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Annotation of /trunk/src/skrueger/geotools/selection/FeatureMapLayerSelectionSynchronizer.java

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Revision 412 - (hide annotations)
Tue Sep 22 17:46:26 2009 UTC (15 years, 5 months ago) by alfonx
Original Path: branches/1.0-gt2-2.6/src/skrueger/geotools/selection/FeatureMapLayerSelectionSynchronizer.java
File MIME type: text/plain
File size: 12710 byte(s)
* AV-Feature: Selected polygons are now marked with hatches, so that the underlying color can still be seen. But there seem to be some zoomIn-problems?!?!

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     import java.beans.PropertyChangeEvent;
46     import java.beans.PropertyChangeListener;
47 alfonx 123 import java.util.Arrays;
48 alfonx 158 import java.util.HashSet;
49 alfonx 409 import java.util.Iterator;
50 alfonx 158 import java.util.Set;
51 alfonx 97 import java.util.Vector;
52    
53     import javax.swing.JTable;
54     import javax.swing.ListSelectionModel;
55     import javax.swing.event.ListSelectionListener;
56    
57 alfonx 409 import org.geotools.feature.FeatureIterator;
58 alfonx 97 import org.geotools.map.MapLayer;
59 alfonx 123 import org.geotools.styling.FeatureTypeStyle;
60 alfonx 97 import org.geotools.styling.Style;
61 mojays 325 import org.opengis.feature.simple.SimpleFeature;
62 alfonx 158 import org.opengis.filter.identity.FeatureId;
63 alfonx 97
64 alfonx 158 import schmitzm.geotools.FilterUtil;
65 alfonx 409 import schmitzm.geotools.feature.PipedFeatureIterator;
66 alfonx 97 import schmitzm.geotools.gui.JMapPane;
67     import schmitzm.geotools.map.event.FeatureSelectedEvent;
68     import schmitzm.geotools.map.event.JMapPaneEvent;
69     import schmitzm.geotools.map.event.JMapPaneListener;
70     import schmitzm.geotools.styling.StylingUtil;
71 alfonx 104 import schmitzm.lang.LangUtil;
72 alfonx 111 import skrueger.geotools.MapPaneToolBar;
73 alfonx 224 import skrueger.geotools.StyledLayerInterface;
74 alfonx 97
75     /**
76     * This class keeps the selection of a (feature) {@link JTable} synchronized
77     * with the {@link StyledLayerSelectionModel} of a layer. This is done by
78     * implementing:
79     * <ul>
80     * <li>a {@link PropertyChangeListener} which listens to the
81     * {@link StyledLayerSelectionModel} and accordingly changes the {@link JTable}
82     * selection</li>
83     * <li>a {@link ListSelectionListener} which listens to the {@link JTable} and
84     * accordingly changes the {@link StyledLayerSelectionModel} selection</li>
85     * </ul>
86     * After creating, the instance of this synchronizer must be added as listener
87     * to both, the {@link StyledLayerSelectionModel} and the table's
88     * {@link ListSelectionModel}.
89     *
90     * @author <a href="mailto:[email protected]">Martin Schmitz</a>
91     * (University of Bonn/Germany)
92     */
93     public class FeatureMapLayerSelectionSynchronizer extends
94 alfonx 106 StyledLayerSelectionModelSynchronizer<StyledFeatureLayerSelectionModel>
95     implements JMapPaneListener {
96 alfonx 111 public static final String SELECTION_STYLING = "SELECTION";
97 alfonx 97 /**
98     * Holds the {@link MapLayer} to keep synchronized with the layer selection
99     * model.
100     */
101     protected final MapLayer mapLayer;
102 alfonx 224 protected final StyledLayerInterface<?> styledLayer;
103 alfonx 97 protected final JMapPane mapPane;
104 alfonx 111 private final MapPaneToolBar toolBar;
105 alfonx 97
106     /**
107     * Creates a new synchronizer
108     *
109     * @param layerSelModel
110     * layer selection model to keep synchronized with the
111     * {@link MapLayer}
112     *
113     * @param mapLayer
114     * {@link MapLayer} to keep synchronized with.
115     */
116     public FeatureMapLayerSelectionSynchronizer(
117     StyledFeatureLayerSelectionModel layerSelModel,
118 alfonx 224 StyledLayerInterface<?> styledLayer, MapLayer mapLayer,
119 alfonx 111 JMapPane mapPane, MapPaneToolBar toolBar) {
120 alfonx 97
121     super(layerSelModel);
122 alfonx 224 this.styledLayer = styledLayer;
123 alfonx 97
124     this.mapLayer = mapLayer;
125     this.mapPane = mapPane;
126 alfonx 111 this.toolBar = toolBar;
127 alfonx 97 }
128    
129     /**
130     * Called by {@link StyledLayerSelectionModel} when a the selection on other
131     * selection components (map, chart, ...) has changed. When calling this
132     *
133     * method changes the {@link MapLayer} selection according to the
134     * {@link StyledLayerSelectionModel} selection.
135     *
136     * @param evt
137     * an event
138     */
139     @Override
140     public void propertyChange(PropertyChangeEvent evt) {
141 alfonx 151
142     if (!isEnabled())
143     return;
144    
145 alfonx 97 if (!(evt instanceof StyledLayerSelectionEvent))
146     return;
147     StyledLayerSelectionEvent selEvt = (StyledLayerSelectionEvent) evt;
148     // Only react on own layer and ignore events invoked by
149     // this component itself
150     if (selEvt.getEmitter() != layerSelModel || selectionChangeCausedByMe)
151     return;
152     // Apply new selection on table (except this event is one of
153     // some more events)
154 alfonx 111 Vector<String> newSelection = layerSelModel.getSelection();
155 alfonx 97 if (newSelection == null)
156     return;
157    
158     // Avoid event circles in valueChanged(..)
159     selectionChangeCausedByMe = true;
160    
161     changeLayerStyle(newSelection);
162    
163     // Danger of event circles in valueChanged(..) banned
164     selectionChangeCausedByMe = false;
165     }
166    
167 alfonx 151 /**
168     * Changes the Style of the {@link MapLayer} to reflect changes of the
169     * selection.
170     *
171     * @param newSelection
172 alfonx 318 * A {@link Vector} of SimpleFeature-IDs that are selected.
173 alfonx 151 */
174 alfonx 111 private void changeLayerStyle(final Vector<String> newSelection) {
175 alfonx 97 try {
176 alfonx 412 Style originalStyle = mapLayer.getStyle();
177 alfonx 97 if (newSelection.isEmpty()) {
178    
179 alfonx 412 // Check if the Style contains a SELECTION FTS
180    
181     FeatureTypeStyle[] clone = originalStyle.featureTypeStyles().toArray( new FeatureTypeStyle[] {} ).clone();
182    
183     for (FeatureTypeStyle fts : clone) {
184     if (fts.getName() != null
185     && fts.getName().equals(SELECTION_STYLING)) {
186     originalStyle.featureTypeStyles().remove(fts);
187    
188     mapPane.refresh();
189 alfonx 106
190 alfonx 412 return;
191     }
192     }
193    
194 alfonx 97 } else {
195 alfonx 100 LOGGER.debug("SELECTION .. change style");
196 alfonx 106
197 alfonx 123 // We take Style from the MapLayer that is displayed at the
198 alfonx 224 // moment. We do not use the styledLayer.getStyle, because in
199 alfonx 123 // the atlas, this always return the default style, but
200 alfonx 224 // additional styles might be selected.
201 alfonx 123 // Taking the style from the mapLayer indicated, that we have to
202 alfonx 125 // remove any selection rules first.
203 alfonx 101
204 alfonx 412 FeatureTypeStyle selectionFTStyle = StylingUtil
205 alfonx 224 .createSelectionStyle(styledLayer.getGeoObject());
206 alfonx 106
207 alfonx 412 selectionFTStyle.setName(SELECTION_STYLING);
208 alfonx 123
209 alfonx 158 /**
210     *
211     * Add a Filter to the selectionMapStyle, so that it is only
212     * used on objects that are selected. <br/>
213     *
214     * Note 1:<br/>
215 alfonx 409 * It is NEVER allowed to GeoTools extend Filter () { .. } (and
216     * write tests into the evaluate block). Especially for the
217 alfonx 158 * ShapeFileRenderer, we may only use a geotools Filter.<br/>
218     *
219     * Note 2:<br/>
220 alfonx 409 * The FilterUtil.FILTER_FAC2.id(fids) wants a set of
221     * FeatureId-Objects!
222 alfonx 158 */
223 alfonx 106
224 alfonx 158 Set<FeatureId> fids = new HashSet<FeatureId>();
225     for (String fid : newSelection) {
226     fids.add(FilterUtil.FILTER_FAC2.featureId(fid));
227     }
228 alfonx 106
229 alfonx 412 selectionFTStyle.rules().get(0).setFilter(
230     FilterUtil.FILTER_FAC2.id(fids));
231 alfonx 106
232 alfonx 412 // Maybe there has already been another selection
233     // FeatureTypeStyle... Let's replace it...
234     boolean foundAndReplaced = false;
235     for (FeatureTypeStyle fts : originalStyle.featureTypeStyles()) {
236     if (fts.getName() != null
237     && fts.getName().equals(SELECTION_STYLING)) {
238     foundAndReplaced = true;
239     fts.rules().clear();
240     fts.rules().addAll(selectionFTStyle.rules());
241     break;
242     }
243 alfonx 123 }
244 alfonx 412 if (!foundAndReplaced) {
245     originalStyle.featureTypeStyles().add(selectionFTStyle);
246     }
247 alfonx 151
248 alfonx 412 // Refresh the map
249     mapPane.refresh();
250 alfonx 97 }
251    
252     } catch (Exception e) {
253     LOGGER.error("Error while trying to create a selection style", e);
254     }
255     }
256    
257 alfonx 151 /**
258     * Used to synchronize {@link FeatureSelectedEvent}s with the
259     * {@link StyledFeatureLayerSelectionModel}
260     */
261 alfonx 97 @Override
262     public void performMapPaneEvent(JMapPaneEvent e) {
263 alfonx 106
264 alfonx 151 // Ignore event if it is caused by us or the synchronizer is disabled.
265     if (!isEnabled() || selectionChangeCausedByMe)
266     return;
267    
268     if (!(e instanceof FeatureSelectedEvent)) {
269     // LOGGER.debug("Ignoring event " + e);
270     return;
271     }
272    
273 alfonx 111 /**
274 alfonx 151 * Only listen to FeatureSelectedEvents if an appropriate tool is
275 alfonx 111 * selected.
276     */
277     final int selectedTool = toolBar.getSelectedTool();
278     if (selectedTool != MapPaneToolBar.TOOL_SELECTION_ADD
279     && selectedTool != MapPaneToolBar.TOOL_SELECTION_REMOVE
280     && selectedTool != MapPaneToolBar.TOOL_SELECTION_SET) {
281     return;
282     }
283    
284 mojays 109 // only listen to events directly coming from JMapPane
285     // selection (ignore selections from FilterDialog)
286 alfonx 111 if (e.getSourceObject() != this.mapPane)
287     return;
288    
289 alfonx 97 FeatureSelectedEvent fse = (FeatureSelectedEvent) e;
290    
291 alfonx 151 /**
292 alfonx 158 * Checking, that the FeatureSelectedEvent actually contains features
293     * from this layer
294 alfonx 151 */
295     final String sourceID = fse.getSourceLayer().getTitle();
296     final String syncForID = mapLayer.getTitle();
297     if (sourceID != null && syncForID != null
298 alfonx 158 && !sourceID.equals(syncForID)) {
299     LOGGER.debug("Ignoring a FeatureSelectedEvent from " + sourceID);
300 alfonx 97 return;
301 alfonx 151 }
302 alfonx 97
303 alfonx 151 LOGGER.debug("do event " + fse);
304 alfonx 111
305 alfonx 97 // Avoid event circles in propertyChange(..)
306     selectionChangeCausedByMe = true;
307    
308 alfonx 409 Iterator<SimpleFeature> fi = fse.getSelectionResult().iterator();
309 alfonx 97
310 alfonx 151 // reset the selection of the DpLayerSelectionModel
311     // layerSelModel.setValueIsAdjusting(true);
312 alfonx 97
313 alfonx 151 if (selectedTool == MapPaneToolBar.TOOL_SELECTION_ADD) {
314     layerSelModel.setValueIsAdjusting(true);
315 alfonx 409
316     for (int fIdx = 0; fi.hasNext(); fIdx++) {
317     SimpleFeature f = fi.next();
318 alfonx 151 layerSelModel.addSelection(f.getID());
319     }
320     layerSelModel.setValueIsAdjusting(false);
321     } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_SET) {
322     layerSelModel.setValueIsAdjusting(true);
323     layerSelModel.clearSelection();
324 alfonx 97
325 alfonx 409 for (int fIdx = 0; fi.hasNext(); fIdx++) {
326     SimpleFeature f = fi.next();
327 alfonx 151 layerSelModel.addSelection(f.getID());
328     }
329 alfonx 111
330 alfonx 409 // LOGGER.debug("Setting selection to " + fi.());
331    
332 alfonx 151 layerSelModel.setValueIsAdjusting(false);
333     } else if (selectedTool == MapPaneToolBar.TOOL_SELECTION_REMOVE) {
334     layerSelModel.setValueIsAdjusting(true);
335 alfonx 409 for (int fIdx = 0; fi.hasNext(); fIdx++) {
336     SimpleFeature f = fi.next();
337 alfonx 151 layerSelModel.removeSelection(f.getID());
338 alfonx 111 }
339 alfonx 151 layerSelModel.setValueIsAdjusting(false);
340     }
341 alfonx 111
342     // Show selected features in the map, which is not automatically done by
343     // the origin: FeatureSelectedEvent
344 alfonx 97 changeLayerStyle(layerSelModel.getSelection());
345 alfonx 106
346 alfonx 97 // Danger of event circles in propertyChange(..) banned
347     selectionChangeCausedByMe = false;
348     }
349 alfonx 151
350 alfonx 97 }

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