/[schmitzm]/trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java
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revision 46 by mojays, Fri Apr 17 11:44:05 2009 UTC revision 58 by mojays, Fri Apr 17 15:55:33 2009 UTC
# Line 1  Line 1 
1    /** SCHMITZM - This file is part of the java library of Martin O.J. Schmitz (SCHMITZM)
2    
3        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.
4        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.
5        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
6    
7        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.
8        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.
9        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.
10     **/
11  package skrueger.geotools;  package skrueger.geotools;
12    
13    import java.util.Iterator;
14    import java.util.Map;
15    import java.util.TreeMap;
16    import java.util.Vector;
17    
18    import org.geotools.data.DefaultQuery;
19    import org.geotools.data.FeatureSource;
20    import org.geotools.data.Query;
21    import org.geotools.data.memory.MemoryDataStore;
22    import org.geotools.feature.FeatureCollection;
23    import org.opengis.filter.Filter;
24    
25  import schmitzm.geotools.gui.FeatureCollectionTableModel;  import schmitzm.geotools.gui.FeatureCollectionTableModel;
26    import skrueger.AttributeMetaData;
27    import skrueger.i8n.I8NUtil;
28    import skrueger.i8n.Translation;
29    
30    /**
31     * This class extends the the {@link FeatureCollectionTableModel} with the
32     * functionalities of the {@link AttributeMetaData} of
33     * {@linkplain StyledMapInterface styled objects}.
34     * <ul>
35     *   <li>column names are translated according to {@link AttributeMetaData#getTitle()}</li>
36     *   <li>columns are hidden according to {@link AttributeMetaData#isVisible()()}</li>
37     * </ul>
38     * @author <a href="mailto:[email protected]">Martin Schmitz</a> (University of Bonn/Germany)
39     */
40  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {  public class StyledFeatureCollectionTableModel extends FeatureCollectionTableModel {
41        /** Holds the data source as styled map. */
42      protected StyledMapInterface map = null;
43      /** Contains only the visible elements of the {@link AttributeMetaData}-Map */
44      protected Map<Integer, AttributeMetaData> visibleAMD = null;
45      /** Holds the data source for the table as {@code FeatureSource}. */
46      protected FeatureSource featureSource = null;
47      /** Holds the current filter on the table */
48      protected Filter filter = null;
49    
50      /**
51       * Creates a new table model for a styled map.
52       * @param map the styled map
53       */
54    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {
55      super(null);      this(map,Filter.INCLUDE);
56    }    }
57      
58      /**
59       * Creates a new table model for a styled map.
60       * @param map the styled map
61       * @param filter filter applied to the table
62       */
63      public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map, Filter filter) {
64        super();
65        setFeatureCollection(map, filter);
66      }
67    
68      /**
69       * Creates a new table model for a styled map.
70       * @param map the styled map
71       */
72    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {
73      super(null);      this(map,Filter.INCLUDE);
74    }    }
75    
76    public String[] createColumnNames() {    /**
77      return new String[0];     * Creates a new table model for a styled map.
78       * @param map the styled map
79       * @param filter filter applied to the table
80       */
81      public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map, Filter filter) {
82        super();
83        setFeatureCollection(map, filter);
84    }    }
85      
86    public int getRowCount() {    /**
87      return 0;     * Sets a new data source for the table.
88       * @param fs     the feature source
89       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
90       *               and translation
91       */
92      protected void setFeatureSource(FeatureSource fs, Map<Integer, AttributeMetaData> amd, Filter filter) throws Exception {
93        if ( filter == null )
94          filter = Filter.INCLUDE;
95    
96        this.featureSource = fs;
97        this.filter        = filter;
98        this.visibleAMD    = null;
99        
100        FeatureCollection fc = null;
101        if (fs != null) {
102          Query query = new DefaultQuery();
103          if (amd != null) {
104            // determine the names of the visible Attributes
105            this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);
106            Vector<String> visibleAttrNames = new Vector<String>();
107            // Add the column with the geometry (usually "the_geom")
108            visibleAttrNames.add(fs.getSchema().getDefaultGeometry().getLocalName());
109            for (int attrIdx : visibleAMD.keySet())
110              visibleAttrNames.add(fs.getSchema().getAttributeType(attrIdx).getLocalName());
111    
112            // create a query for the visible attributes
113            String[] properties = visibleAttrNames.toArray(new String[0]);
114            query = new DefaultQuery(fs.getSchema().getTypeName(), filter, properties);
115          }
116          fc = fs.getFeatures(query);
117        }
118        setFeatureCollection(fc);
119      }
120    
121      /**
122       * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
123       * and sets this as the new data source for the table.
124       * @param fs     the feature source
125       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
126       *               and translation
127       */
128      public void setFeatureCollection(StyledFeatureCollectionInterface map, Filter filter) {
129        this.map = map;
130        try {
131          if (map == null)
132            setFeatureSource(null, null, null);
133          else {
134            FeatureCollection fc = map.getGeoObject();
135            String fcName = fc.getFeatureType().getTypeName();
136            FeatureSource fs = new MemoryDataStore(fc).getFeatureSource(fcName);
137            setFeatureSource(fs, map.getAttributeMetaDataMap(), filter);
138          }
139        } catch (Exception err) {
140          throw new RuntimeException(err);
141        }
142      }
143    
144      /**
145       * Sets the {@code StyledFeatureCollection} as new data source for the table.
146       * @param fs     the feature source
147       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
148       *               and translation
149       */
150      public void setFeatureCollection(StyledFeatureSourceInterface map, Filter filter) {
151        this.map = map;
152        try {
153          if (map == null)
154            setFeatureSource(null, null, null);
155          else
156            setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap(), filter);
157        } catch (Exception err) {
158          throw new RuntimeException(err);
159        }
160    }    }
161        
162    public Object getValueAt(int row, int col) {    /**
163      return "";     * Resets the filter for the table.
164       * @param filter a filter
165       */
166      public void setFilter(Filter filter) {
167        try{
168          setFeatureSource(this.featureSource, this.visibleAMD, filter);
169        } catch (Exception err) {
170          throw new RuntimeException(err);
171        }
172      }
173    
174      /**
175       * After calling {@code super.reorganize(.)} this method replaced the
176       * column descriptions with the titles of the {@code AttributeMetaData}.
177       * @param fireTableStructureChanged indicates whether a table event is
178       *        initiated after reorganize
179       */
180      @Override
181      protected void reorganize(boolean fireTableStructureChanged) {
182        super.reorganize(false);
183        // translate the column names
184        if (visibleAMD != null) {
185          Iterator<Integer> keys = visibleAMD.keySet().iterator();
186          for (int i = 0; i < colNames.length && keys.hasNext(); i++) {
187            Translation title = visibleAMD.get(keys.next()).getTitle();
188            if (!I8NUtil.isEmpty(title)) {
189              System.out.println("set colname " + i + " to " + title.toString());
190              colNames[i] = title.toString();
191            }
192          }
193        }
194        if ( fireTableStructureChanged )
195          fireTableStructureChanged();
196    }    }
197  }  }
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