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

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Revision 1273 - (show annotations)
Mon Nov 15 16:22:47 2010 UTC (14 years, 3 months ago) by alfonx
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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.geometry.jts.ReferencedEnvelope;
45 import org.geotools.styling.Style;
46 import org.opengis.feature.simple.SimpleFeature;
47 import org.opengis.feature.simple.SimpleFeatureType;
48 import org.opengis.filter.Filter;
49 import org.opengis.referencing.crs.CoordinateReferenceSystem;
50
51 import schmitzm.geotools.feature.FeatureUtil;
52 import schmitzm.geotools.feature.FeatureUtil.GeometryForm;
53 import schmitzm.geotools.io.GeoImportUtil;
54 import schmitzm.geotools.styling.StylingUtil;
55 import skrueger.AttributeMetadataImpl;
56 import skrueger.i8n.Translation;
57
58 import com.vividsolutions.jts.geom.Envelope;
59
60 /**
61 * This class enables a non Atlas context to use the Atlas LayerPanel
62 * {@link JPanel} as a {@link MapContextManagerInterface}
63 *
64 * @author <a href="mailto:[email protected]">Stefan Alfons Tzeggai</a>
65 *
66 * TODO Rename to StyledShapefile
67 */
68 public class StyledFS implements StyledFeatureSourceInterface {
69 private static final Logger LOGGER = Logger.getLogger(StyledFS.class);
70
71 private final FeatureSource<SimpleFeatureType, SimpleFeature> fs;
72
73 /** Caching the CRS of the layer **/
74 CoordinateReferenceSystem crs = null;
75
76 /**
77 * A unique ID which identifies the Layer in the Atlas. It's more important
78 * than it should be ;-)
79 */
80 final private String id;
81
82 private Style style;
83
84 private Translation title;
85
86 private Translation desc;
87
88 private File sldFile;
89
90 /** A map of simple attribute names to their meta-data **/
91 private AttributeMetadataMap<AttributeMetadataImpl> attMap;
92
93 private Filter filter = Filter.INCLUDE;
94
95 /**
96 * This class enables a non Atlas context to use the Atlas LayerPanel
97 * {@link JPanel} as a {@link MapContextManagerInterface}
98 *
99 * @param fs
100 * {@link FeatureSource} that is beeing styled.
101 *
102 * @param sldFile
103 * may be <code>null</code>. Otherwise the SLD {@link File} to
104 * import and associate with this {@link StyledFS}
105 *
106 * @param id
107 * <code>null</code> is allowed and will autogenerate an id
108 */
109 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
110 File sldFile, String id) {
111
112 this.fs = fs;
113
114 if (id == null) {
115 this.id = StyledFS.class.getSimpleName()
116 + new Random(new Date().getTime()).nextInt(10000000);
117 } else {
118 this.id = id;
119 }
120
121 this.sldFile = sldFile;
122
123 // datei existiert, dann lesen
124 if (sldFile != null && sldFile.exists()) {
125 try {
126 style = StylingUtil.loadSLD(sldFile)[0];
127 } catch (Exception e) {
128 LOGGER.warn("Reading SLD failed: " + sldFile, e);
129 style = null;
130 }
131 }
132
133 title = new Translation();
134 desc = new Translation();
135
136 if (sldFile != null) {
137 title.fromOneLine(sldFile.getName());
138 desc.fromOneLine(sldFile.getAbsolutePath());
139 }
140
141 }
142
143 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs) {
144 this(fs, (File) null, null);
145 }
146
147 public StyledFS(FeatureSource<SimpleFeatureType, SimpleFeature> fs,
148 String id) {
149 this(fs, null, id);
150 }
151
152 public void dispose() {
153 }
154
155 /**
156 * Returns human readable {@link String} of the CRS natively used by this
157 * {@link DpLayer}
158 *
159 * If CRS == null, it will call {@link #getGeoObject()}
160 *
161 */
162 public String getCRSString() {
163 if (getCrs() == null)
164 return "CRS?";
165
166 return getCrs().getName().getCode();
167 }
168
169 public CoordinateReferenceSystem getCrs() {
170 if (crs == null) {
171 crs = fs.getSchema().getCoordinateReferenceSystem();
172 if (crs == null) {
173
174 crs = fs.getSchema().getGeometryDescriptor()
175 .getCoordinateReferenceSystem();
176
177 if (crs == null) {
178 LOGGER.warn("Could not determine the CRS of " + getTitle()
179 + ". Using default "
180 + GeoImportUtil.getDefaultCRS());
181 crs = GeoImportUtil.getDefaultCRS();
182 }
183 }
184 }
185 return crs;
186 }
187
188 public Translation getDesc() {
189 return desc;
190 }
191
192 public Envelope getEnvelope() {
193 try {
194 return fs.getBounds();
195 } catch (IOException e) {
196 e.printStackTrace();
197 return null;
198 }
199 }
200
201 public FeatureSource<SimpleFeatureType, SimpleFeature> getGeoObject() {
202 return fs;
203 }
204
205 public String getId() {
206 return id;
207 }
208
209 public ImageIcon getImageIcon() {
210 return null;
211 }
212
213 public URL getInfoURL() {
214 return null;
215 }
216
217 public Translation getKeywords() {
218 return null;
219 }
220
221 public Style getStyle() {
222 return style;
223 }
224
225 public Translation getTitle() {
226 return title;
227 }
228
229 public boolean isDisposed() {
230 return false;
231 }
232
233 /**
234 * If true, this layer will not be shown in the legend. Default = false
235 */
236 /**
237 *
238 * Killed by SK: 6. April 09: Ein Layer soll nicht generell auf
239 * verstecken/nicht verstecken gestellt werden können. Das sind
240 * Eigenschaften der Karte/MapContext, ebenso wie die Reihenfolge der Layer.
241 * Im Atlas verwaltet deshalb nun die Klasse skrueger.atlas.Map welche Layer
242 * nicht in der Legende auftauchen sollen. Meines Wissens hat keiner bisher
243 * die Funktion genutzt.
244 *
245 * // public boolean isHideInLegend() { // return false; // }
246 */
247
248 public void setDesc(Translation dec) {
249 this.desc = dec;
250 }
251
252 public void setImageIcon(ImageIcon icon) {
253 }
254
255 public void setKeywords(Translation keywords) {
256 }
257
258 public void setStyle(Style style) {
259 this.style = style;
260
261 }
262
263 public void setTitle(Translation title) {
264 this.title = title;
265
266 }
267
268 public void uncache() {
269 }
270
271 /**
272 *
273 */
274 @Override
275 public AttributeMetadataMap<AttributeMetadataImpl> getAttributeMetaDataMap() {
276 if (attMap == null) {
277 attMap = StyledLayerUtil
278 .createDefaultAttributeMetadataMap(getSchema());
279 }
280 return attMap;
281 }
282
283 /**
284 * @return The {@link File} where the SLD was loaded from or
285 * <code>null</code> if there didn't exist a {@link File}.
286 *
287 * @author <a href="mailto:[email protected]">Stefan Alfons Tzeggai</a>
288 */
289 public File getSldFile() {
290 return sldFile;
291 }
292
293 /**
294 * Associates this .sld with the {@link FeatureSource}, but does not
295 * automatically load the file. It must not even exist.
296 *
297 * @param sldFile
298 */
299 public void setSldFile(File sldFile) {
300 this.sldFile = sldFile;
301 }
302
303 /**
304 * Returns the features of the {@link FeatureSource}.
305 *
306 * @see {@link StyledFeaturesInterface}
307 */
308 @Override
309 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollection() {
310 FeatureCollection<SimpleFeatureType, SimpleFeature> features;
311 try {
312 features = getGeoObject().getFeatures();
313 } catch (IOException e) {
314 throw new RuntimeException(
315 "Error getting the features of the FeatureSource");
316 }
317 return features;
318 }
319
320 /**
321 * Same as {@link #getGeoObject()} method, but complies to the
322 * {@link StyledFeaturesInterface}
323 *
324 * @see {@link StyledFeaturesInterface}
325 */
326 @Override
327 public FeatureSource<SimpleFeatureType, SimpleFeature> getFeatureSource() {
328 return getGeoObject();
329 }
330
331 @Override
332 public FeatureCollection<SimpleFeatureType, SimpleFeature> getFeatureCollectionFiltered() {
333 // final FeatureCollection<SimpleFeatureType, SimpleFeature> fc =
334 // getFeatureCollection();
335 // if (filter == Filter.EXCLUDE)
336 // return new EmptyFeatureCollection(fc.getSchema());
337 // if (filter == Filter.INCLUDE)
338 // return fc;
339 // return fc.subCollection(filter);
340
341 try {
342 if (filter != Filter.INCLUDE)
343 return getFeatureSource().getFeatures(filter);
344 else
345 return getFeatureSource().getFeatures();
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 *
370 * @return <code>true</code> is style was loaded
371 */
372 public boolean loadStyle() {
373 if (getSldFile() == null)
374 return false;
375
376 try {
377 Style[] loadSLD = StylingUtil.loadSLD(getSldFile());
378 setStyle(loadSLD[0]);
379 return true;
380 } catch (Exception e) {
381 return false;
382 }
383
384 }
385
386 public void setTitle(String title) {
387 setTitle(new Translation(title));
388 }
389
390 public void setDesc(String desc) {
391 setDesc(new Translation(desc));
392 }
393
394 public void setCRS(CoordinateReferenceSystem crs2) {
395 crs = crs2;
396 }
397
398 @Override
399 public ReferencedEnvelope getReferencedEnvelope() {
400 return new ReferencedEnvelope(getEnvelope(), getCrs());
401 }
402
403 /**
404 * Defaults to the GeometryForm determined with FeatureUtil.getGeometryForm,
405 * but can be set to override ANY.
406 */
407 private GeometryForm geometryForm;
408
409 /**
410 * Defaults to the GeometryForm determined with FeatureUtil.getGeometryForm,
411 * but can be set to override ANY.
412 */
413
414 @Override
415 public GeometryForm getGeometryForm() {
416 if (geometryForm == null) {
417 geometryForm = FeatureUtil.getGeometryForm(getSchema());
418 }
419 return geometryForm;
420 }
421
422 /**
423 * Defaults to the GeometryForm determined with FeatureUtil.getGeometryForm,
424 * but can be set to override ANY.
425 */
426 public void setGeometryForm(GeometryForm geometryForm) {
427 this.geometryForm = geometryForm;
428 }
429
430 }

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