/[schmitzm]/trunk/src/skrueger/geotools/StyledFeatureCollectionTableModel.java
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revision 46 by mojays, Fri Apr 17 11:44:05 2009 UTC revision 59 by mojays, Fri Apr 17 17:26:58 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      /** Contains the complete {@link AttributeMetaData}-Map of the styled layer. */
48      protected Map<Integer, AttributeMetaData> origAMD = null;
49      /** Holds the current filter on the table */
50      protected Filter filter = null;
51    
52      /**
53       * Creates a new table model for a styled map.
54       * @param map the styled map
55       */
56    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map) {
57      super(null);      this(map,Filter.INCLUDE);
58    }    }
59      
60      /**
61       * Creates a new table model for a styled map.
62       * @param map the styled map
63       * @param filter filter applied to the table
64       */
65      public StyledFeatureCollectionTableModel(StyledFeatureCollectionInterface map, Filter filter) {
66        super();
67        setFeatureCollection(map, filter);
68      }
69    
70      /**
71       * Creates a new table model for a styled map.
72       * @param map the styled map
73       */
74    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {    public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map) {
75      super(null);      this(map,Filter.INCLUDE);
76    }    }
77    
78    public String[] createColumnNames() {    /**
79      return new String[0];     * Creates a new table model for a styled map.
80       * @param map the styled map
81       * @param filter filter applied to the table
82       */
83      public StyledFeatureCollectionTableModel(StyledFeatureSourceInterface map, Filter filter) {
84        super();
85        setFeatureCollection(map, filter);
86    }    }
87      
88    public int getRowCount() {    /**
89      return 0;     * Sets a new data source for the table.
90       * @param fs     the feature source
91       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
92       *               and translation
93       */
94      protected void setFeatureSource(FeatureSource fs, Map<Integer, AttributeMetaData> amd, Filter filter) throws Exception {
95        if ( filter == null )
96          filter = Filter.INCLUDE;
97    
98        this.featureSource = fs;
99        this.filter        = filter;
100        this.origAMD       = amd;
101        this.visibleAMD    = null;
102        
103        FeatureCollection fc = null;
104        if (fs != null) {
105          Query query = new DefaultQuery();
106          if (amd != null) {
107            // determine the names of the visible Attributes
108            this.visibleAMD = StyledMapUtil.getVisibleAttributeMetaData(amd, true);
109            Vector<String> visibleAttrNames = new Vector<String>();
110            // Add the column with the geometry (usually "the_geom")
111            visibleAttrNames.add(fs.getSchema().getDefaultGeometry().getLocalName());
112            for (int attrIdx : visibleAMD.keySet())
113              visibleAttrNames.add(fs.getSchema().getAttributeType(attrIdx).getLocalName());
114    
115            // create a query for the visible attributes
116            String[] properties = visibleAttrNames.toArray(new String[0]);
117            query = new DefaultQuery(fs.getSchema().getTypeName(), filter, properties);
118          }
119          fc = fs.getFeatures(query);
120        }
121        setFeatureCollection(fc);
122      }
123    
124      /**
125       * Converts the {@code StyledFeatureCollection} to a {@code FeatureSource}
126       * and sets this as the new data source for the table.
127       * @param fs     the feature source
128       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
129       *               and translation
130       */
131      public void setFeatureCollection(StyledFeatureCollectionInterface map, Filter filter) {
132        this.map = map;
133        try {
134          if (map == null)
135            setFeatureSource(null, null, null);
136          else {
137            FeatureCollection fc = map.getGeoObject();
138            String fcName = fc.getFeatureType().getTypeName();
139            FeatureSource fs = new MemoryDataStore(fc).getFeatureSource(fcName);
140            setFeatureSource(fs, map.getAttributeMetaDataMap(), filter);
141          }
142        } catch (Exception err) {
143          throw new RuntimeException(err);
144        }
145      }
146    
147      /**
148       * Sets the {@code StyledFeatureCollection} as new data source for the table.
149       * @param fs     the feature source
150       * @param amd    {@link AttributeMetaData}-Map to define the visible attributes
151       *               and translation
152       */
153      public void setFeatureCollection(StyledFeatureSourceInterface map, Filter filter) {
154        this.map = map;
155        try {
156          if (map == null)
157            setFeatureSource(null, null, null);
158          else
159            setFeatureSource(map.getGeoObject(), map.getAttributeMetaDataMap(), filter);
160        } catch (Exception err) {
161          throw new RuntimeException(err);
162        }
163    }    }
164        
165    public Object getValueAt(int row, int col) {    /**
166      return "";     * Resets the filter for the table.
167       * @param filter a filter
168       */
169      public void setFilter(Filter filter) {
170        try{
171          setFeatureSource(this.featureSource, this.origAMD, filter);
172        } catch (Exception err) {
173          throw new RuntimeException(err);
174        }
175      }
176    
177      /**
178       * After calling {@code super.reorganize(.)} this method replaced the
179       * column descriptions with the titles of the {@code AttributeMetaData}.
180       * @param fireTableStructureChanged indicates whether a table event is
181       *        initiated after reorganize
182       */
183      @Override
184      protected void reorganize(boolean fireTableStructureChanged) {
185        super.reorganize(false);
186        // translate the column names
187        if (visibleAMD != null) {
188          Iterator<Integer> keys = visibleAMD.keySet().iterator();
189          for (int i = 0; i < colNames.length && keys.hasNext(); i++) {
190            Translation title = visibleAMD.get(keys.next()).getTitle();
191            if (!I8NUtil.isEmpty(title)) {
192              System.out.println("set colname " + i + " to " + title.toString());
193              colNames[i] = title.toString();
194            }
195          }
196        }
197        if ( fireTableStructureChanged )
198          fireTableStructureChanged();
199    }    }
200  }  }
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