/[schmitzm]/trunk/src/skrueger/geotools/StyledFS.java
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Contents of /trunk/src/skrueger/geotools/StyledFS.java

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Revision 864 - (show annotations)
Mon May 24 23:28:45 2010 UTC (14 years, 9 months ago) by alfonx
File size: 10166 byte(s)
updated asswing pom to use a variable ${mainClass}
1 /*******************************************************************************
2 * Copyright (c) 2009 Martin O. J. Schmitz.
3 *
4 * This file is part of the SCHMITZM library - a collection of utility
5 * classes based on Java 1.6, focusing (not only) on Java Swing
6 * and the Geotools library.
7 *
8 * The SCHMITZM project is hosted at:
9 * http://wald.intevation.org/projects/schmitzm/
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public License
13 * as published by the Free Software Foundation; either version 3
14 * of the License, or (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License (license.txt)
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 * or try this link: http://www.gnu.org/licenses/lgpl.html
25 *
26 * Contributors:
27 * Martin O. J. Schmitz - initial API and implementation
28 * Stefan A. Tzeggai - additional utility classes
29 ******************************************************************************/
30 package skrueger.geotools;
31
32 import java.io.File;
33 import java.io.IOException;
34 import java.net.URL;
35 import java.util.Date;
36 import java.util.Random;
37
38 import javax.swing.ImageIcon;
39 import javax.swing.JPanel;
40
41 import org.apache.log4j.Logger;
42 import org.geotools.data.FeatureSource;
43 import org.geotools.feature.FeatureCollection;
44 import org.geotools.feature.NameImpl;
45 import org.geotools.styling.Style;
46 import org.opengis.feature.simple.SimpleFeature;
47 import org.opengis.feature.simple.SimpleFeatureType;
48 import org.opengis.feature.type.AttributeDescriptor;
49 import org.opengis.filter.Filter;
50 import org.opengis.referencing.crs.CoordinateReferenceSystem;
51
52 import schmitzm.geotools.io.GeoImportUtil;
53 import schmitzm.geotools.styling.StylingUtil;
54 import skrueger.AttributeMetadataImpl;
55 import skrueger.i8n.Translation;
56
57 import com.vividsolutions.jts.geom.Envelope;
58
59 /**
60 * This class enables a non Atlas context to use the Atlas LayerPanel
61 * {@link JPanel} as a {@link MapContextManagerInterface}
62 *
63 * @author <a href="mailto:[email protected]">Stefan Alfons Kr&uuml;ger</a>
64 *
65 * TODO Rename to StyledShapefile
66 */
67 public class StyledFS implements StyledFeatureSourceInterface {
68 private static final Logger LOGGER = Logger.getLogger(StyledFS.class);
69
70 private final FeatureSource<SimpleFeatureType, SimpleFeature> fs;
71
72 /** Caching the CRS of the layer **/
73 CoordinateReferenceSystem crs = null;
74
75 /**
76 * A unique ID which identifies the Layer in the Atlas. It's more important
77 * than it should be ;-)
78 */
79 private String id;
80
81 private Style style;
82
83 private Translation title;
84
85 private Translation desc;
86
87 private File sldFile;
88
89 /** A map of simple attribute names to their meta-data **/
90 private AttributeMetadataMap<AttributeMetadataImpl> map;
91
92 private Filter filter = Filter.INCLUDE;
93
94 /**
95 * This class enables a non Atlas context to use the Atlas LayerPanel
96 * {@link JPanel} as a {@link MapContextManagerInterface}
97 *
98 * @param fs
99 * {@link FeatureSource} that is beeing styled.
100 *
101 * @param sldFile
102 * may be <code>null</code>. Otherwise the SLD {@link File} to
103 * import and associate with this {@link StyledFS}
104 */
105 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
106 File sldFile) {
107
108 this.fs = fs;
109
110 id = StyledFS.class.getSimpleName()
111 + new Random(new Date().getTime()).nextInt(10000000);
112
113 this.sldFile = sldFile;
114
115 // datei existiert, dann lesen
116 if (sldFile != null && sldFile.exists()) {
117 try {
118 style = StylingUtil.loadSLD(sldFile)[0];
119 } catch (Exception e) {
120 LOGGER.warn("Reading SLD failed: " + sldFile, e);
121 style = null;
122 }
123 }
124
125 title = new Translation();
126 desc = new Translation();
127
128 if (sldFile != null) {
129 title.fromOneLine(sldFile.getName());
130 desc.fromOneLine(sldFile.getAbsolutePath());
131 }
132
133 }
134
135 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs) {
136 this(fs, null);
137 }
138
139 public void dispose() {
140 }
141
142 /**
143 * Returns human readable {@link String} of the CRS natively used by this
144 * {@link DpLayer}
145 *
146 * If CRS == null, it will call {@link #getGeoObject()}
147 *
148 */
149 public String getCRSString() {
150 if (getCrs() == null)
151 return "CRS?";
152
153 return getCrs().getName().getCode();
154 }
155
156 public CoordinateReferenceSystem getCrs() {
157 if (crs == null) {
158 crs = fs.getSchema().getCoordinateReferenceSystem();
159 if (fs.getSchema().getCoordinateReferenceSystem() == null) {
160 LOGGER.warn("Could not determine the CRS of " + getTitle()
161 + ". Using default " + GeoImportUtil.getDefaultCRS());
162 crs = GeoImportUtil.getDefaultCRS();
163 }
164 }
165 return crs;
166 }
167
168 public Translation getDesc() {
169 return desc;
170 }
171
172 public Envelope getEnvelope() {
173 try {
174 return fs.getBounds();
175 } catch (IOException e) {
176 e.printStackTrace();
177 return null;
178 }
179 }
180
181 public FeatureSource<SimpleFeatureType, SimpleFeature> getGeoObject() {
182 return fs;
183 }
184
185 public String getId() {
186 return id;
187 }
188
189 public ImageIcon getImageIcon() {
190 return null;
191 }
192
193 public URL getInfoURL() {
194 return null;
195 }
196
197 public Translation getKeywords() {
198 return null;
199 }
200
201 public Style getStyle() {
202 return style;
203 }
204
205 public Translation getTitle() {
206 return title;
207 }
208
209 public boolean isDisposed() {
210 return false;
211 }
212
213 /**
214 * If true, this layer will not be shown in the legend. Default = false
215 */
216 /**
217 *
218 * Killed by SK: 6. April 09: Ein Layer soll nicht generell auf
219 * verstecken/nicht verstecken gestellt werden können. Das sind
220 * Eigenschaften der Karte/MapContext, ebenso wie die Reihenfolge der Layer.
221 * Im Atlas verwaltet deshalb nun die Klasse skrueger.atlas.Map welche Layer
222 * nicht in der Legende auftauchen sollen. Meines Wissens hat keiner bisher
223 * die Funktion genutzt.
224 *
225 * // public boolean isHideInLegend() { // return false; // }
226 */
227
228 public void setDesc(Translation dec) {
229 this.desc = dec;
230 }
231
232 public void setImageIcon(ImageIcon icon) {
233 }
234
235 public void setKeywords(Translation keywords) {
236 }
237
238 public void setStyle(Style style) {
239 this.style = style;
240
241 }
242
243 public void setTitle(Translation title) {
244 this.title = title;
245
246 }
247
248 public void uncache() {
249 }
250
251 /**
252 *
253 */
254 public AttributeMetadataMap<AttributeMetadataImpl> getAttributeMetaDataMap() {
255 if (map == null) {
256
257 map = new AttributeMetadataImplMap();
258
259 // // Leaving out the first one, it will be the_geom
260 // for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
261 // AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
262 //
263 // AttributeMetadataImpl attMetaData = new AttributeMetadataImpl(
264 // new NameImpl(attDesc
265 // .getName().getNamespaceURI(), attDesc
266 // .getName().getLocalPart()), map.getLanguages());
267 // map.put(attDesc.getName(), attMetaData);
268 // }
269
270 // Leaving out the first one, it will be the_geom
271 for (int i = 1; i < fs.getSchema().getAttributeCount(); i++) {
272 AttributeDescriptor attDesc = fs.getSchema().getDescriptor(i);
273
274 // TODO AttributeMetadataAS would be nicer, which would not work
275 // with Translations ;-)
276 AttributeMetadataImpl attMetaData = new AttributeMetadataImpl(
277 new NameImpl(attDesc.getName().getNamespaceURI(),
278 attDesc.getName().getLocalPart()), map
279 .getLanguages());
280 if (String.class.isAssignableFrom(attDesc.getType()
281 .getBinding())) {
282 // For Strings we add the "" as NODATA values
283 attMetaData.addNodataValue("");
284 }
285 map.put(attDesc.getName(), attMetaData);
286 }
287 }
288 return map;
289 }
290
291 /**
292 * @return The {@link File} where the SLD was loaded from or
293 * <code>null</code> if there didn't exist a {@link File}.
294 *
295 * @author <a href="mailto:[email protected]">Stefan Alfons
296 * Kr&uuml;ger</a>
297 */
298 public File getSldFile() {
299 return sldFile;
300 }
301
302 public void setSldFile(File sldFile) {
303 this.sldFile = sldFile;
304 }
305
306 /**
307 * Returns the features of the {@link FeatureSource}.
308 *
309 * @see {@link StyledFeaturesInterface}
310 */
311 @Override
312 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollection() {
313 FeatureCollection<SimpleFeatureType, SimpleFeature> features;
314 try {
315 features = getGeoObject().getFeatures();
316 } catch (IOException e) {
317 throw new RuntimeException(
318 "Error getting the features of the FeatureSource");
319 }
320 return features;
321 }
322
323 /**
324 * Same as {@link #getGeoObject()} method, but complies to the
325 * {@link StyledFeaturesInterface}
326 *
327 * @see {@link StyledFeaturesInterface}
328 */
329 @Override
330 public FeatureSource<SimpleFeatureType, SimpleFeature> getFeatureSource() {
331 return getGeoObject();
332 }
333
334 @Override
335 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollectionFiltered() {
336 // final FeatureCollection<SimpleFeatureType, SimpleFeature> fc =
337 // getFeatureCollection();
338 // if (filter == Filter.EXCLUDE)
339 // return new EmptyFeatureCollection(fc.getSchema());
340 // if (filter == Filter.INCLUDE)
341 // return fc;
342 // return fc.subCollection(filter);
343
344 try {
345 return getFeatureSource().getFeatures(filter);
346 } catch (IOException e) {
347 throw new RuntimeException(e);
348 }
349 }
350
351 @Override
352 public Filter getFilter() {
353 return filter;
354 }
355
356 @Override
357 public void setFilter(Filter filter) {
358 this.filter = filter;
359 }
360
361 @Override
362 public SimpleFeatureType getSchema() {
363 return getGeoObject().getSchema();
364 }
365
366 /**
367 * Tries to load a style from the file denoted in {@link #getSldFile()}. If
368 * the file doesn't exits, return <code>null</code>;
369 * @return <code>true</code> is style was loaded
370 */
371 public boolean loadStyle() {
372 if (getSldFile() == null)
373 return false;
374
375 try {
376 Style[] loadSLD = StylingUtil.loadSLD(getSldFile());
377 setStyle(loadSLD[0]);
378 return true;
379 } catch (Exception e) {
380 return false;
381 }
382
383 }
384
385 }

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